:root {
    /* Modo Light - Blanco y Negro */
    --bg-primary: #ffffff;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f7f7f8;
    --bg-sidebar: #f9f9f9;
    --bg-message-user: #000000;
    --bg-message-ai: #f7f7f8;
    --bg-input: #ffffff;
    --bg-input-bar: #f7f7f8;
    
    /* Textos */
    --text-primary: #000000;
    --text-secondary: #6e6e80;
    --text-tertiary: #acacbe;
    --text-inverse: #ffffff;
    
    /* Bordes */
    --border-color: rgba(0, 0, 0, 0.06);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

    /* Alertas por tema */
    --alert-saved-bg: #d1fae8;
    --alert-saved-text: #065f46;
    --alert-saved-border: #a7f3d0;

    --alert-danger-bg: #fef2f2;
    --alert-danger-text: #991b1b;
    --alert-danger-border: rgba(239, 68, 68, 0.25);

    --alert-neutral-bg: #f7f7f8;
    --alert-neutral-text: #111827;
    --alert-neutral-border: rgba(0, 0, 0, 0.06);

    /* Card wizard (contenido diferenciado) */
    --bg-card-content: #f7f7f8;

    /* Sidebar activo */
    --sidebar-active-bg: rgba(0, 0, 0, 0.06);
    --sidebar-active-accent: #000000;
    --sidebar-active-ring: rgba(0, 0, 0, 0.10);
    --sidebar-active-glow: rgba(0, 0, 0, 0.00);

    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Transiciones */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Tipografía */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
}

/* Modo Dark */
[data-theme="dark"] {
    --bg-primary: #212121;
    --bg-secondary: #212121;
    --bg-tertiary: #2f2f2f;
    --bg-sidebar: #171717;
    --bg-message-user: #343541;
    --bg-message-ai: #444654;
    --bg-input: #2f2f2f;
    --bg-input-bar: #40414f;
    
    --text-primary: #ffffff;
    --text-secondary: #acacbe;
    --text-tertiary: #6e6e80;
    --text-inverse: #ffffff;
    
    --border-color: rgba(255, 255, 255, 0.08);

    --alert-saved-bg: rgba(34, 197, 94, 0.18);
    --alert-saved-text: #86efac;
    --alert-saved-border: rgba(34, 197, 94, 0.4);

    --alert-danger-bg: rgba(239, 68, 68, 0.12);
    --alert-danger-text: #fecaca;
    --alert-danger-border: rgba(239, 68, 68, 0.35);

    --alert-neutral-bg: var(--bg-tertiary);
    --alert-neutral-text: var(--text-primary);
    --alert-neutral-border: var(--border-color);

    --bg-card-content: #1a1a1a;

    --sidebar-active-bg: rgba(255, 255, 255, 0.06);
    --sidebar-active-accent: #ffffff;
    --sidebar-active-ring: rgba(255, 255, 255, 0.14);
    --sidebar-active-glow: rgba(255, 255, 255, 0.18);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-base), color var(--transition-base);
}

.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-slow), background-color var(--transition-base), border-color var(--transition-base);
    position: relative;
    overflow-x: hidden;
    overflow-y: visible;
}

/* En light mode, forzar el fondo del sidebar de forma consistente en todos los módulos. */
html[data-theme="light"] .sidebar,
html[data-theme="light"] .sidebar-logo,
html[data-theme="light"] .sidebar-footer {
    background: #f9f9f9 !important;
}

.sidebar.collapsed {
    width: 60px;
}

/* Logo Section */
.sidebar-logo {
    padding: var(--spacing-md) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: padding var(--transition-slow), cursor var(--transition-base);
    flex-shrink: 0;
    position: relative;
    /* Evita que Bootstrap (en páginas con wizard) reemplace el color del logo */
    color: var(--text-primary);
}

.sidebar.collapsed .sidebar-logo {
    padding: var(--spacing-md);
    justify-content: center;
    cursor: pointer;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.sidebar.collapsed .sidebar-logo:hover {
    background: var(--bg-tertiary);
}

.sidebar.collapsed .sidebar-logo:hover .logo-icon {
    transform: scale(1.05);
}

.logo-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    flex-shrink: 0;
    transition: all var(--transition-base);
}

.sidebar.collapsed .logo-icon {
    width: 24px;
    height: 24px;
}

.logo-text {
    flex: 1;
    min-width: 0;
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.logo-text span {
    color: var(--text-primary);
    font-weight: 700;
}

.sidebar.collapsed .logo-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
    position: absolute;
    pointer-events: none;
}

.model-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-base);
    font-family: var(--font-family);
    width: 100%;
    justify-content: flex-start;
}

.model-selector:hover {
    background: var(--bg-tertiary);
}

.model-selector .model-chevron {
    margin-left: auto;
    opacity: 0.6;
    transition: transform var(--transition-base);
}

.model-selector:hover .model-chevron {
    opacity: 1;
}

.model-selector-wrapper.active .model-selector .model-chevron {
    transform: rotate(180deg);
}

.model-dropdown-sidebar {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    z-index: 10001;
}

.model-name {
    white-space: nowrap;
}

.sidebar-header {
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex-shrink: 0;
}

.sidebar-menu-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    color: var(--text-secondary);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    width: 100%;
    text-align: left;
    position: relative;
}

.sidebar-menu-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Sidebar: ítem activo sin subrayado, solo "blink" (peso/contraste leve). */
.sidebar-menu-btn.active {
    background: transparent;
    border-left: 0;
    box-shadow: none;
    padding-left: var(--spacing-md);
}
.sidebar-menu-btn[aria-current="page"] {
    background: transparent;
    color: var(--text-primary);
    font-weight: 700;
    border-left: 0;
    box-shadow: none;
    padding-left: var(--spacing-md);
}
.sidebar-menu-btn[aria-current="page"] .sidebar-text {
    text-decoration: none;
}

/* Grupo expandido: sin highlight */
.sidebar-group-btn[aria-expanded="true"] {
    background: transparent;
    color: var(--text-primary);
    font-weight: 500;
    border-left: 0;
    box-shadow: none;
}

/* Solo el ítem activo tiene fondo; el primero no por defecto */
.sidebar-header .sidebar-menu-btn:first-child:not(.active):not([aria-current="page"]) {
    background: transparent;
}

/* Enlaces del sidebar: mismo aspecto que los botones (sin subrayado ni línea)
   Importante: no sobreescribir el estilo del item activo. */
.sidebar .sidebar-header a.sidebar-menu-btn:not(.active):not([aria-current="page"]),
.sidebar .sidebar-header a.sidebar-menu-btn:not(.active):not([aria-current="page"]):link,
.sidebar .sidebar-header a.sidebar-menu-btn:not(.active):not([aria-current="page"]):visited,
.sidebar .sidebar-header a.sidebar-menu-btn:not(.active):not([aria-current="page"]):hover,
.sidebar .sidebar-header a.sidebar-menu-btn:not(.active):not([aria-current="page"]):focus,
.sidebar .sidebar-header a.sidebar-menu-btn:not(.active):not([aria-current="page"]):active {
    text-decoration: none !important;
    box-sizing: border-box;
    color: var(--text-secondary);
    background: transparent;
    border: none !important;
    border-bottom: none !important;
    outline: none;
    -webkit-tap-highlight-color: transparent;
}
.sidebar .sidebar-header a.sidebar-menu-btn:not(.active):not([aria-current="page"]):visited {
    color: var(--text-secondary);
    background: transparent;
}
.sidebar .sidebar-header a.sidebar-menu-btn:not(.active):not([aria-current="page"]):hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}
.sidebar .sidebar-header a.sidebar-menu-btn:not(.active):not([aria-current="page"]):focus-visible {
    outline: 2px solid var(--text-tertiary);
    outline-offset: 2px;
}
/* Sin línea separadora debajo del header del sidebar */
.sidebar .sidebar-header {
    border-bottom: none;
}

.sidebar.collapsed .sidebar-menu-btn {
    justify-content: center;
    padding: var(--spacing-sm);
    width: 40px;
    height: 40px;
    margin: 0 auto;
}

.sidebar-toggle-btn {
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
    border-radius: var(--border-radius-sm);
    opacity: 0.6;
    margin-left: auto;
}

.sidebar-toggle-btn:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
    opacity: 1;
}

.sidebar.collapsed .sidebar-toggle-btn {
    display: none;
}

.toggle-icon {
    transition: transform var(--transition-base);
}

.collapse-icon {
    transform: rotate(0deg);
}

.sidebar-text {
    transition: opacity var(--transition-slow), width var(--transition-slow), margin var(--transition-slow);
    white-space: nowrap;
    overflow: hidden;
    display: inline-block;
}

.sidebar.collapsed .sidebar-text {
    opacity: 0;
    width: 0;
    margin: 0;
    overflow: hidden;
    display: none;
}

.sidebar.collapsed .sidebar-menu-btn svg {
    margin: 0;
}

.sidebar-content {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-md);
    transition: padding var(--transition-slow);
    border-top: none;
}

.sidebar.collapsed .sidebar-content {
    padding: var(--spacing-sm);
}

.chat-history-section {
    margin-top: var(--spacing-sm);
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--spacing-xs) var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
    text-align: left;
}

.category-header:hover {
    color: var(--text-secondary);
    background: var(--bg-tertiary);
}

.category-title {
    flex: 1;
}

.category-chevron {
    transition: transform var(--transition-base);
    opacity: 0.6;
    flex-shrink: 0;
}

.category-header:hover .category-chevron {
    opacity: 1;
}

.category-header.expanded .category-chevron {
    transform: rotate(180deg);
}

.sidebar.collapsed .category-header {
    opacity: 0;
    height: 0;
    padding: 0;
    margin: 0;
    overflow: hidden;
}

.chat-history {
    max-height: 1000px;
    overflow: hidden;
    transition: max-height var(--transition-slow), opacity var(--transition-slow), margin var(--transition-slow);
    margin-top: var(--spacing-sm);
}

.chat-history.collapsed {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
}

.history-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    padding-left: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-slow);
    min-width: 0;
    overflow: visible;
    position: relative;
}

.history-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.history-item.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-weight: 500;
}

/* Enlaces del sidebar (ej. módulo Manage) mismo aspecto que .history-item */
a.history-item {
    text-decoration: none;
    color: var(--text-secondary);
}
a.history-item:hover,
a.history-item.active {
    color: var(--text-primary);
}

.history-text {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: opacity var(--transition-slow);
}

.history-title-input {
    flex: 1;
    min-width: 0;
    height: 30px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 0 8px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    outline: none;
}

.chat-item-menu-btn {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--text-tertiary);
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--transition-base), color var(--transition-base), background var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.chat-item-menu-btn:hover {
    color: var(--text-primary);
    background: transparent;
}

.history-item:hover .chat-item-menu-btn,
.history-item.active .chat-item-menu-btn,
.history-item.is-renaming .chat-item-menu-btn {
    opacity: 1;
}

.chat-item-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 8px;
    z-index: 25;
    min-width: 140px;
    padding: 4px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    box-shadow: var(--shadow-md);
    display: none;
    flex-direction: column;
    gap: 2px;
}

.chat-item-menu.is-open {
    display: flex;
}

.chat-item-menu-action {
    width: 100%;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-primary);
    text-align: left;
    padding: 7px 10px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
}

.chat-item-menu-action:hover {
    background: var(--bg-tertiary);
}

.chat-item-menu-action.is-danger {
    color: #d92d20;
}

.delete-chat-btn {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--text-tertiary);
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--transition-base), color var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-sm);
}

.delete-chat-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.history-item:hover .delete-chat-btn {
    opacity: 1;
}

.delete-chat-btn svg {
    width: 14px;
    height: 14px;
    stroke-width: 2.5;
}

.sidebar.collapsed .history-text {
    opacity: 0;
    width: 0;
    display: none;
}

.sidebar.collapsed .history-item {
    justify-content: center;
    padding: var(--spacing-sm);
}

.roles-section {
    margin-top: var(--spacing-sm);
}

.roles-items {
    max-height: 1000px;
    overflow: hidden;
    transition: max-height var(--transition-slow), opacity var(--transition-slow), margin var(--transition-slow);
    margin-top: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.roles-items.collapsed {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
}

.role-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    min-width: 0;
    overflow: hidden;
    background: transparent;
    border: none;
    text-align: left;
    width: 100%;
}

.role-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.role-text {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: opacity var(--transition-slow);
}

.sidebar.collapsed .role-text {
    opacity: 0;
    width: 0;
    display: none;
}

.sidebar.collapsed .role-item {
    justify-content: center;
    padding: var(--spacing-sm);
}

.rama-section {
    margin-top: var(--spacing-sm);
}

.rama-materias {
    max-height: 1000px;
    overflow: hidden;
    transition: max-height var(--transition-slow), opacity var(--transition-slow), margin var(--transition-slow);
    margin-top: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.rama-materias.collapsed {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
}

.materia-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    min-width: 0;
    overflow: hidden;
    background: transparent;
    border: none;
    text-align: left;
    width: 100%;
}

.materia-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.materia-item.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.materia-text {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: opacity var(--transition-slow);
}

.sidebar.collapsed .materia-text {
    opacity: 0;
    width: 0;
    display: none;
}

.sidebar.collapsed .materia-item {
    justify-content: center;
    padding: var(--spacing-sm);
}

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
    transition: padding var(--transition-slow);
    position: relative;
    overflow: visible;
    z-index: 20;
}

.sidebar.collapsed .sidebar-footer {
    padding: var(--spacing-md);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0;
    transition: justify-content var(--transition-slow);
}

.sidebar.collapsed .user-info {
    justify-content: center;
    flex-direction: column;
    gap: 0;
    align-items: center;
}

.user-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 0;
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.sidebar.collapsed .user-details {
    opacity: 0;
    width: 0;
    overflow: hidden;
    position: absolute;
    pointer-events: none;
}

.user-name {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-license {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-avatar-btn {
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
    flex-shrink: 0;
    position: relative;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, #10b981, #059669);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-inverse);
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.user-avatar-btn:hover .user-avatar {
    transform: scale(1.05);
}

.avatar-initials {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-inverse);
}

/* User Menu Dropdown */
.user-menu-dropdown {
    position: absolute;
    bottom: calc(100% + var(--spacing-sm));
    left: 0;
    right: 0;
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md);
    display: none;
    flex-direction: column;
    gap: 0;
    min-width: 0;
    max-width: none;
    z-index: 10000;
    animation: slideUp 0.2s ease;
}

.sidebar-footer {
    position: relative;
}

.user-menu-dropdown.show {
    display: flex;
}

.sidebar.collapsed .user-menu-dropdown {
    left: var(--spacing-sm);
    right: var(--spacing-sm);
    min-width: auto;
    width: 240px;
}

.user-menu-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
}

.user-menu-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #10b981, #059669);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.avatar-initials-large {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-inverse);
}

.user-menu-info {
    flex: 1;
    min-width: 0;
}

.user-menu-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.user-menu-username {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.menu-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-sm) 0;
}

.user-menu-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: none;
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: left;
    font-family: var(--font-family);
    width: 100%;
    position: relative;
}

.menu-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.help-menu-item:hover,
.help-menu-item.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.menu-item svg:first-child {
    flex-shrink: 0;
    opacity: 0.7;
}

.menu-item span {
    flex: 1;
}

.menu-chevron {
    margin-left: auto;
    opacity: 0.5;
}

.help-menu-item {
    position: relative;
}

.help-submenu {
    position: absolute;
    left: calc(100% + 8px);
    top: 0;
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md);
    display: none;
    flex-direction: column;
    gap: 0;
    min-width: 240px;
    max-width: 280px;
    z-index: 10001;
    animation: slideRight 0.2s ease;
}

.help-submenu .menu-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.help-submenu.show {
    display: flex;
}

.sidebar.collapsed .help-submenu {
    left: calc(100% + 4px);
    min-width: 220px;
}

.user-menu-account {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
}

.account-avatar-small {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.account-info {
    flex: 1;
    min-width: 0;
}

.account-name {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    margin-bottom: 2px;
}

.account-badge {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    font-weight: 500;
}

.theme-toggle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
    position: relative;
    padding: 0;
}

.theme-toggle:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.header-icon-btn.theme-toggle {
    width: 40px;
    height: 40px;
    color: var(--text-primary);
}

.sidebar.collapsed .theme-toggle {
    width: 32px;
    height: 32px;
}

.theme-icon {
    position: absolute;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

/* En modo claro mostramos luna (acción: cambiar a oscuro); en modo oscuro mostramos sol (acción: cambiar a claro) */
.sun-icon {
    opacity: 0;
    transform: rotate(0deg);
}

.moon-icon {
    opacity: 1;
    transform: rotate(0deg);
}

[data-theme="dark"] .sun-icon {
    opacity: 1;
    transform: rotate(0deg);
}

[data-theme="dark"] .moon-icon {
    opacity: 0;
    transform: rotate(90deg);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-primary);
    transition: background-color var(--transition-base);
}

.chat-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
    width: 100%;
    position: relative;
}

.chat-container.empty-state {
    justify-content: center;
    position: relative;
}

.chat-header {
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--bg-primary);
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    justify-content: space-between;
    min-height: 60px;
    transition: background-color var(--transition-base), padding var(--transition-slow);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

.rol-selector-wrapper {
    position: relative;
}

.rol-selector-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-base);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.rol-selector-header:hover {
    background: var(--bg-tertiary);
}

.rol-selector-wrapper.active .rol-chevron {
    transform: rotate(180deg);
}

.rol-chevron {
    transition: transform var(--transition-base);
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.rol-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    max-width: 300px;
    z-index: 1000;
    display: none;
    flex-direction: column;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity var(--transition-base), transform var(--transition-base);
    padding: var(--spacing-xs) 0;
    overflow: hidden;
}

.rol-selector-wrapper.active .rol-dropdown {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.rol-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-base);
    background: transparent;
    border: none;
    text-align: left;
    width: 100%;
}

.rol-option:hover {
    background: var(--bg-tertiary);
}

.rol-option.active {
    background: var(--bg-tertiary);
}

.rol-option-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.rol-option-title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.4;
}

.rol-option.active .check-icon {
    display: block;
}

.rol-option .check-icon {
    display: none;
    color: var(--text-primary);
    opacity: 0.8;
    flex-shrink: 0;
    width: 16px;
    height: 16px;
}

.materia-selector-wrapper {
    position: relative;
}

.materia-selector-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-base);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.materia-selector-header:hover {
    background: var(--bg-tertiary);
}

.materia-selector-wrapper.active .materia-chevron {
    transform: rotate(180deg);
}

.materia-chevron {
    transition: transform var(--transition-base);
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.materia-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    max-width: 300px;
    z-index: 1000;
    display: none;
    flex-direction: column;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity var(--transition-base), transform var(--transition-base);
    padding: var(--spacing-xs) 0;
    overflow: hidden;
}

.materia-selector-wrapper.active .materia-dropdown {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.materia-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-base);
    background: transparent;
    border: none;
    text-align: left;
    width: 100%;
}

.materia-option:hover {
    background: var(--bg-tertiary);
}

.materia-option.active {
    background: var(--bg-tertiary);
}

.materia-option-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.materia-option-title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.4;
}

.materia-option.active .check-icon {
    display: block;
}

.materia-option .check-icon {
    display: none;
    color: var(--text-primary);
    opacity: 0.8;
    flex-shrink: 0;
    width: 16px;
    height: 16px;
}

.personalidad-selector-wrapper {
    position: relative;
}

.personalidad-selector-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-base);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.personalidad-selector-header:hover {
    background: var(--bg-tertiary);
}

.personalidad-selector-wrapper.active .personalidad-chevron {
    transform: rotate(180deg);
}

.personalidad-chevron {
    transition: transform var(--transition-base);
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.personalidad-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    max-width: 300px;
    z-index: 1000;
    display: none;
    flex-direction: column;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity var(--transition-base), transform var(--transition-base);
    padding: var(--spacing-xs) 0;
    overflow: hidden;
}

.personalidad-selector-wrapper.active .personalidad-dropdown {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.personalidad-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-base);
    background: transparent;
    border: none;
    text-align: left;
    width: 100%;
}

.personalidad-option:hover {
    background: var(--bg-tertiary);
}

.personalidad-option.active {
    background: var(--bg-tertiary);
}

.personalidad-option-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.personalidad-option-title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.4;
}

.personalidad-option.active .check-icon {
    display: block;
}

.personalidad-option .check-icon {
    display: none;
    color: var(--text-primary);
    opacity: 0.8;
    flex-shrink: 0;
    width: 16px;
    height: 16px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-right .header-icon-btn svg,
.header-right .theme-toggle svg {
    stroke-width: 1.25;
}

.header-icon-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    padding: 0;
}

.header-icon-btn:hover {
    background: var(--bg-tertiary);
}

/* Header "pill" button (text + icon) */
.header-pill-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: var(--border-radius-sm);
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 600;
    line-height: 1;
}

.header-pill-btn:hover {
    background: var(--bg-tertiary);
}

.header-pill-btn i {
    font-size: 16px;
}

/* Context cart (header) */
.context-cart-btn {
    position: relative;
}

.context-cart-badge {
    position: static;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 999px;
    background: var(--text-primary);
    color: var(--text-inverse);
    font-size: 11px;
    line-height: 18px;
    font-weight: 700;
    text-align: center;
    border: 1px solid var(--bg-secondary);
    margin-left: 2px;
}

[data-theme="dark"] .context-cart-badge {
    background: #ffffff;
    color: #212121;
    border-color: rgba(255, 255, 255, 0.08);
}

.context-cart-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: var(--spacing-md);
    width: min(520px, calc(100vw - 32px));
    max-height: 70vh;
    overflow: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    box-shadow: 0 20px 80px rgba(0,0,0,.25);
    padding: 10px;
    z-index: 1200;
}

/* Agenda notifications (header bell) */
.agenda-bell-btn {
    position: relative;
}

.agenda-bell-btn i {
    font-size: 16px;
}

.agenda-bell-badge {
    position: absolute;
    top: 5px;
    right: 5px;
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: #d92d20;
    border: 2px solid var(--bg-secondary);
    box-shadow: 0 10px 25px rgba(0,0,0,.15);
}

[data-theme="dark"] .agenda-bell-badge {
    border-color: rgba(255, 255, 255, 0.08);
    box-shadow: 0 10px 25px rgba(0,0,0,.45);
}

.agenda-notif-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: var(--spacing-md);
    width: min(520px, calc(100vw - 32px));
    max-height: 70vh;
    overflow: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    box-shadow: 0 20px 80px rgba(0,0,0,.25);
    padding: 10px;
    z-index: 1200;
}

/* Global search (header) */
.global-search-btn i {
    font-size: 16px;
}

.global-search-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: var(--spacing-md);
    width: min(620px, calc(100vw - 32px));
    max-height: 72vh;
    overflow: hidden;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    box-shadow: 0 20px 80px rgba(0,0,0,.25);
    z-index: 1200;
}

.global-search-dropdown:not([hidden]) {
    display: flex;
    flex-direction: column;
}

.global-search-head {
    padding: 10px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.global-search-input-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-primary);
}

.global-search-input-wrap i {
    color: var(--text-tertiary);
    font-size: 14px;
}

.global-search-input-wrap input {
    flex: 1;
    min-width: 0;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.global-search-clear {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    border: none;
    background: transparent;
    color: var(--text-tertiary);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.global-search-clear:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.global-search-hint {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-tertiary);
    padding: 0 2px;
}

.global-search-results {
    overflow: auto;
    padding: 10px;
}

.global-search-section {
    margin: 0 0 10px;
}
.global-search-section-title {
    font-size: 12px;
    font-weight: 800;
    color: var(--text-tertiary);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin: 0 0 8px;
}
.global-search-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 10px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-primary);
    margin-bottom: 8px;
    text-decoration: none;
    color: inherit;
}
.global-search-item:last-child {
    margin-bottom: 0;
}
.global-search-item:hover {
    background: var(--bg-tertiary);
}
.global-search-item-main {
    min-width: 0;
}
.global-search-item-title {
    font-weight: 800;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.global-search-item-sub {
    margin-top: 4px;
    color: var(--text-secondary);
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.global-search-item-action {
    flex-shrink: 0;
    color: var(--text-tertiary);
}

.global-search-empty,
.global-search-loading,
.global-search-error {
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
    padding: 10px 8px;
}

.agenda-notif-title {
    font-weight: 800;
    color: var(--text-primary);
    margin: 0 0 8px;
}

.agenda-notif-empty {
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
    padding: 10px 8px;
}

.agenda-notif-item {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 10px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-primary);
    margin-bottom: 8px;
}

.agenda-notif-item:last-child {
    margin-bottom: 0;
}

.agenda-notif-item-main {
    min-width: 0;
}

.agenda-notif-item-title {
    color: var(--text-primary);
    font-weight: 700;
    font-size: var(--font-size-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}

.agenda-notif-item-sub {
    color: var(--text-secondary);
    font-size: 12px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.agenda-notif-pill {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 2px 8px;
    font-weight: 800;
    font-size: 11px;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    background: var(--bg-tertiary);
    white-space: nowrap;
}

.agenda-notif-pill.danger {
    background: rgba(217, 45, 32, 0.14);
    border-color: rgba(217, 45, 32, 0.35);
    color: #d92d20;
}

.agenda-notif-pill.warning {
    background: rgba(245, 158, 11, 0.18);
    border-color: rgba(245, 158, 11, 0.35);
    color: #b45309;
}

.agenda-notif-actions {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.agenda-notif-footer {
    display: flex;
    justify-content: flex-end;
    padding-top: 6px;
}

.agenda-notif-link {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    font-size: var(--font-size-sm);
    font-weight: 700;
}

.context-cart-pulse {
    animation: contextCartPulse 520ms cubic-bezier(.2,.9,.2,1);
}

@keyframes contextCartPulse {
    0% { transform: translateZ(0) scale(1); }
    35% { transform: translateZ(0) scale(1.04); }
    100% { transform: translateZ(0) scale(1); }
}

.context-fly-dot {
    position: fixed;
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: var(--text-primary);
    z-index: 10050;
    pointer-events: none;
    box-shadow: 0 10px 25px rgba(0,0,0,.25);
}

[data-theme="dark"] .context-fly-dot {
    background: #ffffff;
    box-shadow: 0 10px 25px rgba(0,0,0,.55);
}

/* Biblioteca home (dashboard) */
.biblioteca-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-md);
}
@media (max-width: 1100px) {
    .biblioteca-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
    .biblioteca-grid { grid-template-columns: 1fr; }
}
.biblioteca-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 14px 16px;
    box-shadow: 0 14px 40px rgba(0,0,0,.08);
    transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
    display: flex;
    flex-direction: column;
    min-height: 160px;
}
[data-theme="dark"] .biblioteca-card {
    box-shadow: 0 18px 60px rgba(0,0,0,.28);
}
.biblioteca-card:hover {
    transform: translateY(-1px);
    border-color: rgba(255,255,255,.12);
    box-shadow: 0 18px 60px rgba(0,0,0,.12);
}
.biblioteca-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}
.biblioteca-card-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    color: var(--text-primary);
    min-width: 0;
}
.biblioteca-card-title i {
    width: 22px;
    text-align: center;
    color: var(--text-tertiary);
}
.biblioteca-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
}
.biblioteca-count {
    font-size: 12px;
    font-weight: 800;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 4px 10px;
}
.biblioteca-link i {
    font-size: 14px;
}
.biblioteca-card-desc {
    margin-top: 10px;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.45;
}
.biblioteca-card-actions {
    margin-top: auto;
    padding-top: 12px;
    display: flex;
    justify-content: flex-start;
}

/* Manage dashboard: compact panels (tables) */
.dashboard-panels {
    margin-top: var(--spacing-md);
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-md);
    align-items: start;
}
@media (max-width: 980px) {
    .dashboard-panels { grid-template-columns: 1fr; }
}
.dashboard-panel {
    background: linear-gradient(180deg, var(--bg-secondary), var(--bg-primary));
    border: 1px solid var(--border-color);
    border-radius: 14px;
    overflow: hidden;
}
.dashboard-panel-head {
    padding: 10px 12px;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}
.dashboard-panel-title {
    font-weight: 800;
    color: var(--text-primary);
}
.dashboard-panel-link {
    color: var(--text-secondary);
    text-decoration: underline;
    font-size: var(--font-size-sm);
}
.dashboard-panel-body {
    padding: 0;
}
.dashboard-table-wrap {
    overflow: auto;
}
.dashboard-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}
.dashboard-table thead th {
    padding: 10px 12px;
    color: var(--text-tertiary);
    font-weight: 700;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    white-space: nowrap;
}
.dashboard-table tbody td {
    padding: 10px 12px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}
.dashboard-table tbody tr:last-child td {
    border-bottom: 0;
}
.dashboard-table a {
    color: var(--text-primary);
    text-decoration: underline;
}

/* Biblioteca home: activity panels */
.biblioteca-home-bottom {
    margin-top: var(--spacing-md);
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: var(--spacing-md);
}
@media (max-width: 980px) {
    .biblioteca-home-bottom { grid-template-columns: 1fr; }
}
.biblioteca-panel {
    background: linear-gradient(180deg, var(--bg-secondary), var(--bg-primary));
    border: 1px solid var(--border-color);
    border-radius: 14px;
    overflow: hidden;
}
.biblioteca-panel--accent {
    background: linear-gradient(180deg, var(--bg-tertiary), var(--bg-secondary));
}
.biblioteca-panel-head {
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}
.biblioteca-panel-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    color: var(--text-primary);
}
.biblioteca-panel-title i {
    width: 18px;
    text-align: center;
    color: var(--text-tertiary);
}
.biblioteca-panel-sub {
    margin-left: auto;
    color: var(--text-tertiary);
    font-size: 12px;
    font-weight: 600;
}
@media (max-width: 1100px) {
    .biblioteca-panel-head {
        align-items: flex-start;
        flex-direction: column;
    }
    .biblioteca-panel-sub {
        margin-left: 0;
    }
}
.biblioteca-panel-body {
    padding: 12px 14px;
}
.biblioteca-list {
    display: grid;
    gap: 10px;
}
.biblioteca-item {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-secondary);
}
.biblioteca-item-title {
    font-weight: 800;
    color: var(--text-primary);
    font-size: 13px;
    line-height: 1.25;
}
.biblioteca-item-sub {
    margin-top: 2px;
    color: var(--text-tertiary);
    font-size: 12px;
}
.biblioteca-item-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 0 0 auto;
}
.biblioteca-empty {
    color: var(--text-tertiary);
    font-size: 13px;
    padding: 10px 0;
}
.biblioteca-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.biblioteca-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 800;
    user-select: none;
}
.biblioteca-chip i {
    color: var(--text-tertiary);
}

/* Biblioteca home: posts (wordpress-like cards) */
.biblioteca-posts {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-md);
}
@media (max-width: 1180px) {
    .biblioteca-posts { grid-template-columns: 1fr; }
}
.biblioteca-post {
    display: grid;
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    background: var(--bg-secondary);
    box-shadow: 0 14px 40px rgba(0,0,0,.06);
}
[data-theme="dark"] .biblioteca-post {
    box-shadow: 0 18px 60px rgba(0,0,0,.26);
}
@media (max-width: 1100px) {
    .biblioteca-post { grid-template-columns: 120px minmax(0, 1fr); }
}
@media (max-width: 520px) {
    .biblioteca-post { grid-template-columns: 1fr; }
}
.biblioteca-post-thumb {
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,.10);
    min-height: 96px;
    background-size: cover;
    background-position: center;
}
.biblioteca-post-main {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.biblioteca-post-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}
.biblioteca-post-tag {
    font-size: 11px;
    font-weight: 900;
    letter-spacing: .02em;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 4px 10px;
}
.biblioteca-post-title {
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.2;
    font-size: 14px;
}
.biblioteca-post-desc {
    color: var(--text-secondary);
    font-size: 12px;
    line-height: 1.35;
}
.biblioteca-post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    color: var(--text-tertiary);
    font-size: 11px;
    font-weight: 700;
}
.biblioteca-post-meta i {
    margin-right: 6px;
}
.biblioteca-post-excerpt {
    margin-top: 2px;
    color: var(--text-secondary);
    font-size: 12px;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Toolbar + pager for posts */
.biblioteca-posts-toolbar {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}
.biblioteca-posts-toolbar .filter-group {
    flex: 1 1 320px;
}
@media (max-width: 1100px) {
    .biblioteca-posts-toolbar .filter-group {
        min-width: 100% !important;
        max-width: 100% !important;
    }
}
.biblioteca-posts-info {
    color: var(--text-tertiary);
    font-size: 12px;
    font-weight: 800;
}

/* Minimal pager (wordpress-like) */
.biblioteca-posts-footer {
    margin-top: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}
.biblioteca-pages {
    display: flex;
    align-items: center;
    gap: 8px;
}
.biblioteca-page-btn,
.biblioteca-page-num {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background .15s ease, color .15s ease, border-color .15s ease, transform .05s ease;
    font-weight: 900;
    font-size: 12px;
    user-select: none;
}
.biblioteca-page-btn:hover,
.biblioteca-page-num:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}
.biblioteca-page-btn:active,
.biblioteca-page-num:active {
    transform: translateY(1px);
}
.biblioteca-page-btn:disabled {
    opacity: .45;
    cursor: not-allowed;
}
.biblioteca-page-num.is-active {
    background: var(--text-primary);
    color: var(--bg-secondary);
    border-color: var(--text-primary);
}
[data-theme="dark"] .biblioteca-page-num.is-active {
    background: #fff;
    color: #000;
    border-color: #fff;
}
.biblioteca-page-ellipsis {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    border: 1px dashed var(--border-color);
    color: var(--text-tertiary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 12px;
}

.context-cart-item {
    display: flex;
    gap: 10px;
    padding: 10px 10px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    margin-bottom: 10px;
}

.context-cart-item:last-child {
    margin-bottom: 0;
}

.context-cart-item-title {
    font-weight: 800;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    line-height: 1.3;
}

.context-cart-item-title-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.biblioteca-item-title-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.biblioteca-item-title-row .biblioteca-item-title {
    margin: 0;
}

.context-cart-item-sub {
    margin-top: 4px;
    color: var(--text-tertiary);
    font-size: 12px;
}

.context-cart-item-actions {
    margin-left: auto;
    display: flex;
    gap: 6px;
    align-items: flex-start;
}

.context-cart-check {
    display: inline-flex;
    align-items: center;
    padding: 2px 2px;
}

.context-cart-check input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--text-primary);
    cursor: pointer;
}

.context-cart-item.is-inactive,
.biblioteca-item.is-inactive {
    opacity: 0.55;
}

.context-cart-item.is-inactive .context-cart-item-title,
.biblioteca-item.is-inactive .biblioteca-item-title {
    text-decoration: line-through;
    text-decoration-thickness: 2px;
    text-decoration-color: rgba(0,0,0,.35);
}
[data-theme="dark"] .context-cart-item.is-inactive .context-cart-item-title,
[data-theme="dark"] .biblioteca-item.is-inactive .biblioteca-item-title {
    text-decoration-color: rgba(255,255,255,.35);
}

.context-cart-empty {
    padding: 14px 12px;
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
}

.context-cart-footer {
    display: flex;
    justify-content: flex-end;
    padding-top: 2px;
}

.context-cart-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.context-icon-btn {
    background: transparent;
    border: none;
    padding: 6px 8px;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-base);
}

.context-icon-btn:hover {
    color: var(--text-primary);
}

.context-icon-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Manage/Cases list: highlight a focused row when navigating from dashboard */
.case-row.is-focused > td {
    background: rgba(255, 238, 170, 0.30);
}
[data-theme="dark"] .case-row.is-focused > td {
    background: rgba(255, 220, 120, 0.12);
}
.case-row.is-focused > td:first-child {
    border-left: 4px solid rgba(245, 158, 11, 0.75);
}
[data-theme="dark"] .case-row.is-focused > td:first-child {
    border-left-color: rgba(245, 158, 11, 0.55);
}

.model-selector-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-base);
    font-family: var(--font-family);
}

.model-selector-header:hover {
    background: var(--bg-tertiary);
}

.model-chevron {
    opacity: 0.6;
    transition: transform var(--transition-base);
}

.model-selector-header:hover .model-chevron {
    opacity: 1;
}

.model-selector-wrapper.active .model-chevron {
    transform: rotate(180deg);
}

.model-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 280px;
    max-width: 320px;
    padding: var(--spacing-sm);
    display: none;
    flex-direction: column;
    gap: var(--spacing-xs);
    z-index: 1000;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.model-selector-wrapper.active .model-dropdown {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.model-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background-color var(--transition-base);
    gap: var(--spacing-sm);
}

.model-option:hover:not(.disabled) {
    background: var(--bg-tertiary);
}

.model-option.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.model-option.active {
    background: var(--bg-tertiary);
}

.model-option-content {
    flex: 1;
    min-width: 0;
}

.model-option-title {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    margin-bottom: 2px;
}

.model-option-subtitle {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    line-height: 1.4;
}

.check-icon {
    color: var(--text-primary);
    opacity: 0.8;
    flex-shrink: 0;
}

.chevron-right {
    color: var(--text-tertiary);
    opacity: 0.6;
    flex-shrink: 0;
}

.model-option:hover .chevron-right {
    opacity: 1;
}

.model-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-xs) 0;
}

.sidebar-open-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
    opacity: 0.4;
}

.sidebar-open-btn:hover {
    opacity: 1;
}

.sidebar-open-btn:hover {
    background: var(--bg-tertiary);
}

.messages-container {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 0;
    scroll-behavior: smooth;
    transition: background-color var(--transition-base);
    position: relative;
    z-index: 0;
    display: flex;
    flex-direction: column;
}

.chat-container.empty-state .messages-container {
    padding-top: 0;
    justify-content: center;
    align-items: center;
    display: flex;
    flex: 0 1 auto;
    overflow: visible;
}

.messages-container::before {
    content: '';
    display: block;
    height: 80px;
    flex-shrink: 0;
}

.chat-container.empty-state .messages-container::before {
    display: none;
}

.messages-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    max-width: 768px;
    width: 100%;
    margin: 0 auto;
    box-sizing: border-box;
}

.chat-container:not(.empty-state) .messages-wrapper {
    flex: 0 1 auto;
}

.chat-container.empty-state .messages-wrapper {
    justify-content: center;
    align-items: center;
    min-height: auto;
    margin: auto;
    flex: 0 0 auto;
    margin-top: -4vh; /* move welcome lower (less "floating") */
    max-width: 768px;
}

.chat-container.empty-state .input-container {
    order: 2;
}

.messages-container::-webkit-scrollbar {
    width: 8px;
}

.messages-container::-webkit-scrollbar-track {
    background: transparent;
}

.messages-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
    transition: background-color var(--transition-base);
}

.messages-container::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* Welcome Message */
.welcome-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
    width: 100%;
    animation: fadeIn 0.5s ease;
    margin: auto 0;
}

.welcome-title {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-primary);
    transition: color var(--transition-base);
    margin: 0;
    padding-bottom: 24px;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

@media (max-width: 768px) {
    .welcome-title {
        font-size: 1.25rem;
    }
}

.chat-container.empty-state .welcome-title {
    padding-bottom: 14px; /* tighter spacing on the welcome screen */
}

.chat-container.empty-state .welcome-message {
    padding-top: 0;
    padding-bottom: 0;
    margin-bottom: 0;
    width: 100%;
}

/* Sección de archivos en welcome message */
.welcome-files-section {
    margin-top: 2rem;
    width: 100%;
    max-width: 600px;
}

/* Sección de contextos en welcome message (Assistant) */
.welcome-contextos-section {
    margin-top: 1.25rem;
    width: 100%;
    max-width: 1080px; /* room for the right-side illustration */
}

.welcome-contextos-question {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0 0 0.85rem 0;
    font-weight: 600;
    text-align: center;
}

.chat-container.empty-state .welcome-contextos-section {
    margin-top: 0.75rem;
    max-width: 768px;
}

.chat-container.empty-state .welcome-contextos-question {
    margin-bottom: 0.55rem;
}

.welcome-contextos-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 16px;
    align-items: center;
}

.welcome-contextos-carousel {
    position: relative;
    min-width: 0;
}

.welcome-contextos-illustration {
    width: 220px;
    height: 210px;
    background: url("../img/misc/contexto_04.png") right bottom / contain no-repeat;
    pointer-events: none;
    user-select: none;
    opacity: 0.98;
    justify-self: end;
    align-self: end;
    transform: translateY(14px); /* closer to the input box without creating excess vertical space */
}

@media (max-width: 1100px) {
    .welcome-contextos-section { max-width: 860px; }
    .welcome-contextos-row { grid-template-columns: 1fr; }
    .welcome-contextos-illustration { display: none; }
}

.welcome-contextos-grid {
    display: flex;
    flex-wrap: nowrap;
    gap: 12px;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 6px 2px 2px 2px; /* no reserved band under cards */
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox: hide */
    background: transparent;
}

.welcome-contextos-section.is-empty .welcome-contextos-grid {
    padding: 6px 2px 2px 2px;
}

.welcome-contextos-section.is-empty .welcome-contextos-carousel {
    padding: 0 26px;
}

.welcome-contextos-section.is-empty .welcome-contextos-row {
    grid-template-columns: 1fr;
    gap: 0;
}

.welcome-contextos-section.is-empty .welcome-contextos-nav {
    width: 22px;
    height: 22px;
    border: none;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    opacity: .75;
}

.welcome-contextos-section.is-empty .welcome-contextos-nav:hover {
    background: transparent;
    opacity: 1;
    transform: translateY(-50%) scale(1.05);
}

.welcome-contextos-section.is-empty .welcome-contextos-nav--prev { left: 0; }
.welcome-contextos-section.is-empty .welcome-contextos-nav--next { right: 0; }

.welcome-source-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex: 0 0 auto;
    min-height: 38px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: transform .12s ease, background .12s ease, border-color .12s ease;
}

.welcome-source-btn span {
    white-space: nowrap;
}

.welcome-source-btn:hover {
    background: var(--bg-tertiary);
    border-color: rgba(0,0,0,.16);
    transform: translateY(-1px);
}

[data-theme="dark"] .welcome-source-btn:hover {
    border-color: rgba(255,255,255,.20);
}

/* Hide scrollbar (WebKit) but keep scrolling. */
.welcome-contextos-grid::-webkit-scrollbar {
    height: 0;
}

/* Nav arrows (carousel style) */
.welcome-contextos-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 34px;
    height: 34px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: none; /* avoid the "shadow band" behind the carousel */
    transition: transform .12s ease, background .12s ease, opacity .12s ease, border-color .12s ease;
    z-index: 2;
}
.welcome-contextos-nav--prev { left: -14px; }
.welcome-contextos-nav--next { right: -14px; }
.welcome-contextos-nav:hover {
    background: var(--bg-tertiary);
    transform: translateY(-50%) scale(1.03);
}
.welcome-contextos-nav:active {
    transform: translateY(-50%) scale(0.98);
}
.welcome-contextos-nav:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    box-shadow: none;
}
[data-theme="dark"] .welcome-contextos-nav { box-shadow: none; }

/* Subtle scrollbar styling (keeps the UI clean without hiding affordance). */
/* (Removed: we now hide the scrollbar entirely and use nav arrows.) */

.welcome-context-card {
    position: relative;
    padding: 14px 14px 12px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    color: var(--text-primary);
    text-align: left;
    cursor: pointer;
    transition: transform .12s ease, border-color .12s ease, background .12s ease, box-shadow .12s ease;
    min-height: 86px;
    flex: 0 0 210px;
    scroll-snap-align: start;
}

.welcome-context-card:hover {
    background: var(--bg-tertiary);
    border-color: rgba(255,255,255,.14);
    transform: translateY(-1px);
    box-shadow: 0 14px 40px rgba(0,0,0,.10);
}

.welcome-context-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 10px;
}

.welcome-context-card-top .context-cart-check {
    padding: 0;
}

.welcome-context-title {
    font-weight: 900;
    font-size: 13px;
    line-height: 1.2;
    color: var(--text-primary);
    margin: 0;
}

.welcome-context-sub {
    font-size: 12px;
    color: var(--text-tertiary);
    line-height: 1.35;
    margin: 0;
}

.welcome-context-actions {
    display: inline-flex;
    gap: 8px;
    align-items: center;
}

.welcome-context-actions .manage-action-btn {
    width: 28px;
    height: 28px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.welcome-context-card.is-inactive {
    opacity: 0.55;
}

.welcome-context-card.is-all {
    /* Keep same styles as other cards; only acts as a semantic hook. */
}

.welcome-files-question {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 500;
}

.welcome-files-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
}

.welcome-file-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
    width: 100%;
}

.welcome-file-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-color, #3b82f6);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.welcome-file-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.welcome-file-name {
    flex: 1;
    font-size: 0.9375rem;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Messages */
.message {
    display: flex;
    margin-bottom: var(--spacing-xl);
    animation: slideIn 0.3s ease;
    position: relative;
    z-index: 1;
}

.message.user {
    justify-content: flex-end;
    margin-bottom: 48px;
}

.message-content {
    min-width: 0;
}

.message.user .message-content {
    background: #f4f4f4 !important;
    color: #1f1f1f;
    padding: 12px 16px;
    border-radius: var(--border-radius-lg);
    border-top-right-radius: 4px;
    margin-left: auto;
    max-width: 90%;
    width: fit-content;
    display: inline-block;
    position: relative;
    transition: background-color var(--transition-base), color var(--transition-base);
}

[data-theme="dark"] .message.user .message-content {
    background: #303030 !important;
    color: #f5f5f5;
}

.message-actions {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    display: flex;
    gap: 4px;
    opacity: 0;
    pointer-events: auto;
    transition: opacity 0.2s ease;
    z-index: 1;
    padding: 4px 0;
    margin-top: -4px;
}

.message.user:hover .message-actions,
.message.user .message-actions:hover {
    opacity: 1;
}

/* Iconos fijos para mensajes del bot */
.message-actions-ai {
    pointer-events: all !important;
    position: absolute;
    bottom: -32px;
    left: 0;
    margin-top: 0;
    padding: 0;
    transition: opacity 0.3s ease;
    opacity: 0;
    z-index: 1;
    display: flex;
    gap: 4px;
}

/* Asegurar que los iconos sean visibles cuando se muestren */
.message-actions-ai[style*="opacity: 1"],
.message.ai .message-actions-ai[style*="opacity: 1"] {
    opacity: 1 !important;
    visibility: visible !important;
}

.message.ai {
    margin-bottom: 48px;
}

.message-action-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
    opacity: 0.7;
}

.message-action-btn:hover {
    background: transparent;
    opacity: 1;
    transform: scale(1.1);
}

.message-action-btn:active {
    transform: scale(0.95);
}

.message-action-btn.copied {
    background: rgba(76, 175, 80, 0.3);
    opacity: 1;
}

.message.ai .message-content {
    background: transparent;
    color: var(--text-primary);
    border-radius: var(--border-radius-lg);
    border-top-left-radius: 4px;
    max-width: 90%;
    width: fit-content;
    transition: color var(--transition-base);
    position: relative;
}

.message-text {
    line-height: 1.7;
    word-wrap: break-word;
    display: block;
}

/* Mensajes de usuario (texto plano) */
.message.user .message-text {
    white-space: pre-wrap;
}

/* Mensajes de bot (markdown renderizado) */
.message.ai .message-text {
    white-space: normal;
}

/* Estilos para Markdown */
.message-text h1,
.message-text h2,
.message-text h3,
.message-text h4,
.message-text h5,
.message-text h6 {
    margin-top: 1em;
    margin-bottom: 0.5em;
    font-weight: 600;
    line-height: 1.4;
}

.message-text h1 { font-size: 1.5em; }
.message-text h2 { font-size: 1.3em; }
.message-text h3 { font-size: 1.1em; }

.message-text p {
    margin: 0.75em 0;
    line-height: 1.7;
}

.message-text br {
    line-height: 1.7;
}

.message-text p:first-child {
    margin-top: 0;
}

.message-text p:last-child {
    margin-bottom: 0;
}

.message-text strong,
.message-text b {
    font-weight: 600;
}

.message-text em,
.message-text i {
    font-style: italic;
}

.message-text ul,
.message-text ol {
    margin: 0.75em 0;
    padding-left: 1.5em;
    list-style-position: outside;
}

.message-text ul {
    list-style-type: disc;
}

.message-text ol {
    list-style-type: decimal;
}

.message-text li {
    margin: 0.5em 0;
    display: list-item;
    list-style-position: outside;
}

.message-text code {
    background: rgba(0, 0, 0, 0.1);
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

[data-theme="dark"] .message-text code {
    background: rgba(255, 255, 255, 0.1);
}

.message-text pre {
    background: rgba(0, 0, 0, 0.1);
    padding: 1em;
    border-radius: 6px;
    overflow-x: auto;
    margin: 0.75em 0;
}

[data-theme="dark"] .message-text pre {
    background: rgba(255, 255, 255, 0.1);
}

.message-text pre code {
    background: none;
    padding: 0;
}

.message-text blockquote {
    border-left: 3px solid rgba(255, 255, 255, 0.3);
    padding-left: 1em;
    margin: 0.75em 0;
    opacity: 0.8;
}

[data-theme="light"] .message-text blockquote {
    border-left-color: rgba(0, 0, 0, 0.3);
}

.message-text a {
    color: inherit;
    text-decoration: underline;
    opacity: 0.8;
}

.message-text a:hover {
    opacity: 1;
}

.message-time {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
    opacity: 0.7;
    transition: color var(--transition-base);
}

.message.user .message-time {
    color: rgba(255, 255, 255, 0.7);
}

[data-theme="dark"] .message.user .message-time {
    color: rgba(255, 255, 255, 0.6);
}

/* Input Container */
.input-container {
    padding: 0 0 var(--spacing-lg) 0;
    background: var(--bg-primary);
    transition: background-color var(--transition-base);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    width: 100%;
    flex-shrink: 0;
}

.input-container .chat-form {
    width: 100%;
    max-width: 768px;
    margin: 0 auto;
    box-sizing: border-box;
}

.input-container .input-wrapper {
    width: 100%;
    margin: 0;
}

.chat-container.empty-state .input-container {
    display: none;
}

.input-container-empty {
    display: none;
    padding: 0;
    width: 100%;
    max-width: 768px;
    margin: 16px auto 0;
    box-sizing: border-box;
}

.chat-container.empty-state .input-container-empty {
    display: block;
}

.chat-container.empty-state .input-container-empty {
    margin-top: 8px; /* reduce empty gap between context carousel and input */
}

.input-container-empty .chat-form {
    width: 100%;
    max-width: 768px;
    margin: 0 auto;
    padding: 0;
    box-sizing: border-box;
}

.chat-container.empty-state .input-footer {
    display: none;
}

.input-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: 26px;
    padding: 12px 16px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    min-height: 52px;
    position: relative;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.input-wrapper:hover {
    background: var(--bg-tertiary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.input-wrapper:focus-within {
    background: var(--bg-tertiary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.input-icon-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
    padding: 0;
    opacity: 1;
}

[data-theme="light"] .input-icon-btn {
    color: #000000;
}

.input-icon-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.05);
}

[data-theme="light"] .input-icon-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}

.input-icon-btn:active {
    transform: scale(0.95);
}

.add-icon-btn {
    margin-left: 0;
}

.message-input {
    flex: 1;
    border: none;
    background: transparent;
    resize: none;
    font-family: var(--font-family);
    font-size: 15px;
    color: var(--text-primary);
    padding: 0 8px;
    max-height: 200px;
    overflow-y: auto;
    outline: none;
    transition: color var(--transition-base);
    line-height: 1.5;
    min-height: 24px;
    text-align: left;
}

.message-input::placeholder {
    color: #D0D0D0;
}

[data-theme="light"] .message-input::placeholder {
    color: #D0D0D0;
}

.input-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-right: 0;
}

.send-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: none;
    background: #ffffff;
    color: #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
    padding: 0;
}

[data-theme="light"] .send-btn {
    background: #000000;
    color: #ffffff;
}

.send-btn:hover:not(:disabled) {
    transform: scale(1.05);
    opacity: 0.9;
}

.send-btn:active:not(:disabled) {
    transform: scale(0.95);
}

.send-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: scale(1);
}

.mic-btn {
    opacity: 1;
}

.mic-btn:hover {
    opacity: 1;
    transform: scale(1.05);
}

.mic-btn:active {
    transform: scale(0.95);
}

.input-footer {
    margin-top: var(--spacing-sm);
    padding-left: 0;
    padding-bottom: var(--spacing-sm);
    text-align: center;
    flex-shrink: 0;
}

.disclaimer {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    line-height: 1.5;
    transition: color var(--transition-base);
    text-align: center;
}

/* Loading Animation */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: var(--spacing-md) var(--spacing-lg);
    align-items: center;
}

.typing-status-line {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.4;
}


.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-tertiary);
    animation: typing 1.4s infinite;
    transition: background-color var(--transition-base);
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.7;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideRight {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Modal de Filtros */
.filters-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    animation: fadeIn 0.2s ease;
}

.filters-modal-content {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 0;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    color: var(--text-primary);
    animation: slideUp 0.3s ease;
    position: relative;
    border: 1px solid var(--border-color);
}

.filters-modal-content h3 {
    margin: 0 0 12px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.filters-modal-content > div {
    padding: 16px;
}

.filters-modal-content > div > div {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.filters-modal-content strong {
    color: var(--text-primary);
    font-weight: 600;
}

.message-action-btn.info-btn:hover {
    background: rgba(59, 130, 246, 0.2);
    color: #3b82f6;
}

.message-action-btn.debug-btn:hover {
    background: rgba(147, 51, 234, 0.2);
    color: #9333ea;
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100%;
        z-index: 1000;
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .sidebar-open-btn {
        display: flex;
    }
    
    .chat-header {
        padding: var(--spacing-md);
    }
    
    .header-content h1 {
        font-size: var(--font-size-xl);
    }
    
    .messages-container {
        padding: var(--spacing-md);
    }
    
    .input-container {
        padding: var(--spacing-md) 0;
    }
    
    .message.user .message-content,
    .message.ai .message-content {
        max-width: 95%;
    }
    
    .suggested-questions {
        flex-direction: column;
    }
    
    .suggestion-chip {
        width: 100%;
        text-align: left;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 1rem;
        --spacing-2xl: 1.5rem;
    }
    
    .welcome-message {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .welcome-icon {
        width: 48px;
        height: 48px;
    }
}

/* Sección de Archivos */
.archivos-section {
    display: none;
    width: 100%;
    height: 100%;
    flex: 1;
    overflow: hidden;
    position: relative;
    transition: margin-right var(--transition-base);
}

.archivos-section.with-chat-sidebar {
    margin-right: 400px;
}

.archivos-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
}

.archivos-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary);
    flex-shrink: 0;
}

.archivos-header h1 {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.archivos-toolbar {
    padding: var(--spacing-md) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.archivos-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.btn-action {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-action:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-primary);
}

.btn-action:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.btn-action:disabled:hover {
    background: var(--bg-primary);
    border-color: var(--border-color);
    transform: none;
    box-shadow: none;
}

.btn-action.btn-primary {
    background: var(--text-primary);
    color: var(--text-inverse);
    border-color: var(--text-primary);
}

.btn-action.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Ajustes para dark mode - botones primarios */
[data-theme="dark"] .btn-action.btn-primary {
    background: #ffffff;
    color: #212121;
    border-color: #ffffff;
}

[data-theme="dark"] .btn-action.btn-primary:hover {
    background: #e0e0e0;
    border-color: #e0e0e0;
}

.btn-action.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

[data-theme="dark"] .btn-action.btn-secondary {
    background: #2f2f2f;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .btn-action.btn-secondary:hover {
    background: #3a3a3a;
    border-color: rgba(255, 255, 255, 0.25);
}

.btn-action svg {
    flex-shrink: 0;
}

.archivos-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-base);
}

.breadcrumb-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 500;
}

.breadcrumb-separator {
    color: var(--text-tertiary);
    margin: 0 var(--spacing-xs);
}

.archivos-filters {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
}

.filter-group {
    position: relative;
    flex: 1;
    min-width: 200px;
    max-width: 400px;
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
}

.search-input:focus {
    outline: none;
    border-color: var(--text-primary);
}

.search-icon {
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
}

.sort-select,
.filter-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-base);
}

.sort-select:focus,
.filter-select:focus {
    outline: none;
    border-color: var(--text-primary);
}

.archivos-content {
    flex: 1;
    overflow: auto;
    padding: var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
    align-content: start;
}

.archivo-item {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 120px;
}

.archivo-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.archivo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.archivo-folder .archivo-icon {
    color: #f59e0b;
}

.archivo-main-folder .archivo-icon {
    color: var(--text-primary);
}

.archivo-main-folder.archivo-item {
    border: 2px solid var(--border-color);
}

.archivo-main-folder.archivo-item:hover {
    border-color: var(--text-primary);
    box-shadow: var(--shadow-lg);
}

.archivo-file .archivo-icon {
    color: var(--text-secondary);
}

.archivo-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.archivo-nombre {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.archivo-meta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.archivo-size {
    font-weight: 500;
}

.archivo-date {
    color: var(--text-tertiary);
}

.archivos-empty {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    color: var(--text-tertiary);
    text-align: center;
}

.archivos-empty svg {
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.archivos-empty p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

/* Toggle de vistas */
.view-toggle-group {
    display: flex;
    gap: var(--spacing-xs);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 2px;
    background: var(--bg-secondary);
}

.view-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

.view-toggle-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.view-toggle-btn.active {
    background: var(--bg-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

/* Vista lista (detalle) */
.archivos-content.view-list {
    display: block;
    padding: 0;
}

.archivos-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.archivos-table thead {
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

.archivos-table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.archivos-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-fast);
}

.archivos-table tbody tr:hover {
    background: var(--bg-tertiary);
    cursor: pointer;
}

.archivos-table tbody tr.archivo-previewable:hover {
    background: var(--bg-tertiary);
}

.archivo-row {
    cursor: pointer;
}

.archivo-name-cell {
    padding: var(--spacing-md);
}

.archivo-name-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.archivo-icon-small {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--text-secondary);
}

.archivo-folder .archivo-icon-small {
    color: #f59e0b;
}

.archivo-type-cell,
.archivo-size-cell,
.archivo-date-cell {
    padding: var(--spacing-md);
    color: var(--text-secondary);
}

.archivo-name-cell .archivo-nombre {
    font-weight: 500;
    color: var(--text-primary);
}

/* Vista mosaico mejorada */
.archivos-content.view-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.archivo-previewable {
    position: relative;
}

.archivo-previewable::after {
    content: '👁️';
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    opacity: 0;
    transition: opacity var(--transition-fast);
    font-size: 14px;
    background: rgba(0, 0, 0, 0.6);
    padding: 4px 6px;
    border-radius: 4px;
}

.archivo-previewable:hover::after {
    opacity: 1;
}

/* Visor de archivos - Muy discreto */
.file-viewer-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding: 1rem;
    pointer-events: none;
}

.file-viewer-modal[style*="flex"] {
    pointer-events: auto;
}

.file-viewer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(1px);
    transition: background 0.2s ease;
}

.file-viewer-content {
    position: relative;
    background: var(--bg-primary);
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    max-width: 75vw;
    max-height: 80vh;
    width: auto;
    min-width: 500px;
    display: flex;
    flex-direction: column;
    z-index: 1;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    margin-top: 2rem;
}

/* Estilo para el botón de cerrar en el header (ya no está en la esquina) */

.file-viewer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    background: var(--bg-primary);
}

.file-viewer-title {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-viewer-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.file-viewer-actions-group {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.file-viewer-actions-group.file-viewer-window-controls {
    gap: 0;
}

.file-viewer-action-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

/* Botones solo con icono (compartir y descargar) */
.file-viewer-share-btn,
.file-viewer-download-btn {
    padding: var(--spacing-sm);
    min-width: 32px;
    justify-content: center;
}

.file-viewer-share-btn span,
.file-viewer-download-btn span {
    display: none;
}

.file-viewer-action-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-primary);
}

/* Botón de cerrar en el header */
.file-viewer-header .file-viewer-close {
    position: static;
    width: 32px;
    height: 32px;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    opacity: 0.8;
}

.file-viewer-header .file-viewer-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-danger, #ef4444);
    opacity: 1;
    transform: scale(1.05);
}

.file-viewer-body {
    flex: 1;
    overflow: auto;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
}

.file-viewer-image {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.file-viewer-pdf {
    width: 100%;
    height: 100%;
}

.file-viewer-text {
    width: 100%;
    max-width: 800px;
}

.file-viewer-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
}

/* Controles PDF - Mejorados */
.pdf-viewer-wrapper {
    display: flex;
    flex-direction: column;
    height: calc(80vh - 100px);
    min-height: 400px;
    background: var(--bg-secondary);
    border-radius: 8px;
    overflow: hidden;
}

.pdf-viewer-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    gap: 1rem;
}

.pdf-controls-left,
.pdf-controls-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pdf-control-btn {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.pdf-control-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-color, #3b82f6);
    transform: translateY(-1px);
}

.pdf-control-btn:active {
    transform: translateY(0);
}

.pdf-control-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.pdf-control-btn svg {
    flex-shrink: 0;
}

.pdf-page-info {
    padding: 0.5rem 0.75rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    min-width: 100px;
    text-align: center;
}

.pdf-zoom-info {
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    min-width: 50px;
    text-align: center;
}

.pdf-viewer-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    background: #525252;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 20px, rgba(255,255,255,0.03) 20px, rgba(255,255,255,0.03) 21px),
        repeating-linear-gradient(90deg, transparent, transparent 20px, rgba(255,255,255,0.03) 20px, rgba(255,255,255,0.03) 21px);
    scroll-behavior: smooth;
    position: relative;
}

#pdfCanvas {
    max-width: 100%;
    height: auto;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    background: white;
    border-radius: 4px;
}

/* Contenedor de páginas continuas */
.pdf-pages-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem 0;
    min-height: 100%;
}

.pdf-page-wrapper {
    position: relative;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    background: white;
    border-radius: 4px;
    overflow: hidden;
}

.pdf-page-canvas {
    display: block;
    width: 100%;
    height: auto;
}

/* Editor Monaco */
#monaco-editor-container {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
}

/* Editor TinyMCE */
#tinymce-editor-container {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
}

/* Ajustes para TinyMCE en dark mode */
[data-theme="dark"] .tox-tinymce {
    background: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .tox .tox-edit-area__iframe {
    background: var(--bg-secondary) !important;
}

/* Caso: relato (rich text) dentro del modal/accordion de Manage */
.case-richtext {
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.7;
    word-break: break-word;
}
.case-richtext p {
    margin: 0 0 10px;
}
.case-richtext p:last-child {
    margin-bottom: 0;
}
.case-richtext ul,
.case-richtext ol {
    margin: 0 0 10px;
    padding-left: 1.25rem;
}
.case-richtext li {
    margin: 0.2rem 0;
}
.case-richtext a {
    color: var(--accent-color, var(--text-primary));
    text-decoration: underline;
    text-underline-offset: 2px;
}
.case-richtext blockquote {
    margin: 0 0 10px;
    padding: 10px 12px;
    border-left: 3px solid var(--border-color);
    background: var(--bg-tertiary);
    border-radius: 10px;
    color: var(--text-secondary);
}
.case-richtext code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.95em;
    background: rgba(15, 23, 42, 0.06);
    padding: 0.1em 0.35em;
    border-radius: 6px;
}
.case-richtext pre {
    margin: 0 0 10px;
    overflow: auto;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-secondary);
}

/* Menú contextual */
.context-menu {
    position: fixed;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    min-width: 180px;
    padding: var(--spacing-xs);
    display: flex;
    flex-direction: column;
}

.context-menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-base);
    width: 100%;
    text-align: left;
}

.context-menu-item:hover {
    background: var(--bg-tertiary);
}

.context-menu-item.context-menu-danger {
    color: #ef4444;
}

.context-menu-item.context-menu-danger:hover {
    background: rgba(239, 68, 68, 0.1);
}

.context-menu-item svg {
    flex-shrink: 0;
}

/* Modales */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--spacing-lg);
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 500px;
    display: flex;
    flex-direction: column;
    max-height: 90vh;
    overflow: hidden;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-base);
}

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
    flex: 1;
    overflow-y: auto;
}

.modal-body label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.modal-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
}

.modal-input:focus {
    outline: none;
    border-color: var(--text-primary);
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.modal-footer .btn-primary,
.modal-footer .btn-secondary {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.modal-footer .btn-primary {
    background: var(--text-primary);
    color: var(--text-inverse);
    border-color: var(--text-primary);
}

.modal-footer .btn-primary:hover {
    opacity: 0.9;
}

/* Ajustes para dark mode - botones de modal */
[data-theme="dark"] .modal-footer .btn-primary {
    background: #ffffff;
    color: #212121;
    border-color: #ffffff;
}

[data-theme="dark"] .modal-footer .btn-primary:hover {
    background: #e0e0e0;
    border-color: #e0e0e0;
}

.modal-footer .btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

[data-theme="dark"] .modal-footer .btn-secondary {
    background: #2f2f2f;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .modal-footer .btn-secondary:hover {
    background: #3a3a3a;
    border-color: rgba(255, 255, 255, 0.25);
}

/* Citaciones [1], [2] en mensajes */
.citation-ref {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    cursor: pointer;
    font-weight: 500;
    padding: 0 1px;
    border-radius: 2px;
    transition: background-color var(--transition-fast), opacity var(--transition-fast);
}

.citation-ref:hover {
    opacity: 0.85;
    background: var(--bg-tertiary);
}

.citation-ref:focus {
    outline: 2px solid var(--text-tertiary);
    outline-offset: 1px;
}

/* Modal de referencia (normas/fuentes) */
.reference-modal-overlay {
    z-index: 10002;
}

.reference-modal-content {
    max-width: 520px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
}

.reference-modal-body {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.reference-modal-body .reference-meta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.reference-modal-body .reference-meta-item {
    font-size: var(--font-size-sm);
    display: flex;
    flex-wrap: wrap;
    gap: 0.35em;
}

.reference-modal-body .reference-meta-label {
    color: var(--text-tertiary);
    font-weight: 500;
    flex-shrink: 0;
}

.reference-modal-body .reference-meta-value {
    color: var(--text-primary);
}

.reference-modal-body .reference-citation {
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    font-size: var(--font-size-sm);
}

.reference-modal-body .reference-snippet {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    max-height: 240px;
    overflow-y: auto;
    padding: var(--spacing-sm) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.reference-modal-body .reference-link {
    color: var(--text-primary);
    text-decoration: underline;
    font-size: var(--font-size-sm);
}

.reference-modal-body .reference-link:hover {
    opacity: 0.9;
}

/* Responsive para archivos */
@media (max-width: 768px) {
    .archivos-content {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .archivos-filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group {
        max-width: 100%;
    }

    .archivos-actions {
        flex-direction: column;
    }

    .btn-action {
        width: 100%;
        justify-content: center;
    }

    .modal-content {
        margin: var(--spacing-md);
        max-width: calc(100% - 2rem);
    }
}

/* Sección de Agenda */
.agenda-section {
    display: none;
    width: 100%;
    height: 100%;
    flex: 1;
    overflow: hidden;
    position: relative;
    transition: margin-right var(--transition-base);
}

.agenda-section.with-chat-sidebar {
    margin-right: 400px;
}

.agenda-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
}

.agenda-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary);
    flex-shrink: 0;
}

.agenda-header h1 {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.agenda-content {
    flex: 1;
    overflow: auto;
    padding: var(--spacing-lg);
}

/* Viñeta para abrir chat en secciones */
.section-chat-toggle {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    display: none; /* Oculto por defecto */
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: all var(--transition-base);
}

.section-chat-toggle:hover {
    background: var(--bg-tertiary);
    transform: translateY(-50%) scale(1.05);
    box-shadow: var(--shadow-lg);
    border-color: var(--text-primary);
}

.section-chat-toggle svg {
    width: 24px;
    height: 24px;
}

/* Chat Sidebar Reducido */
.chat-sidebar {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100vh;
    background: #f5f5f5;
    border-left: none;
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: right var(--transition-base);
}

[data-theme="dark"] .chat-sidebar {
    background: #1a1a1a;
}

.chat-sidebar.active {
    right: 0;
}

.chat-sidebar-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
    background: transparent;
}

[data-theme="dark"] .chat-sidebar-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-sidebar-header h2 {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: #1a1a1a;
    flex: 1;
}

[data-theme="dark"] .chat-sidebar-header h2 {
    color: #ffffff;
}

.chat-sidebar-close {
    background: transparent;
    border: none;
    color: #666;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    width: 32px;
    height: 32px;
}

.chat-sidebar-close:hover {
    background: rgba(0, 0, 0, 0.05);
    color: #1a1a1a;
}

[data-theme="dark"] .chat-sidebar-close {
    color: #999;
}

[data-theme="dark"] .chat-sidebar-close:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
}

.chat-sidebar-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.messages-container-sidebar {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    scroll-behavior: smooth;
}

.messages-wrapper-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.welcome-message-sidebar {
    text-align: center;
    padding: var(--spacing-lg);
}

.welcome-title-sidebar {
    font-size: var(--font-size-md);
    font-weight: 400;
    color: var(--text-secondary);
    margin: 0;
}

.input-container-sidebar {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

.chat-form-sidebar {
    width: 100%;
}

.input-wrapper-sidebar {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-sm);
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius);
    padding: var(--spacing-xs) var(--spacing-sm);
}

[data-theme="dark"] .input-wrapper-sidebar {
    background: #2a2a2a;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.message-input-sidebar {
    flex: 1;
    background: transparent;
    border: none;
    color: #1a1a1a;
    font-size: var(--font-size-sm);
    resize: none;
    max-height: 120px;
    overflow-y: auto;
    font-family: inherit;
    padding: var(--spacing-xs);
}

[data-theme="dark"] .message-input-sidebar {
    color: #ffffff;
}

.message-input-sidebar:focus {
    outline: none;
}

.message-input-sidebar::placeholder {
    color: #999;
}

.send-btn-sidebar {
    background: transparent;
    border: none;
    color: #666;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.send-btn-sidebar:not(:disabled):hover {
    background: rgba(0, 0, 0, 0.05);
    color: #1a1a1a;
}

[data-theme="dark"] .send-btn-sidebar {
    color: #999;
}

[data-theme="dark"] .send-btn-sidebar:not(:disabled):hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
}

.send-btn-sidebar:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Modal de búsqueda de chats (estilo ChatGPT) */
.search-modal-overlay {
    position: fixed;
    inset: 0;
    background: transparent;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.search-modal-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

/* Modal de búsqueda: estilos base (light mode) */
.search-modal-box {
    width: min(520px, 100%);
    max-height: calc(100vh - 2 * var(--spacing-lg));
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.search-modal-input-wrap {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    flex-shrink: 0;
    border-bottom: 1px solid var(--border-color);
}

.search-modal-input {
    flex: 1;
    min-width: 0;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition-fast);
}

.search-modal-input::placeholder {
    color: var(--text-tertiary);
}

.search-modal-input:focus {
    border-color: var(--text-tertiary);
}

.search-modal-input:focus-visible {
    outline: 2px solid var(--text-tertiary);
    outline-offset: 2px;
}

.search-modal-clear {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.search-modal-clear:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.search-modal-clear.is-hidden {
    display: none !important;
}

.search-modal-close {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.search-modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.search-modal-results {
    overflow-y: auto;
    padding: var(--spacing-xs) 0 var(--spacing-md);
    max-height: 60vh;
}

.search-modal-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: 10px var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-family: inherit;
    text-align: left;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.search-modal-item:focus-visible,
.search-modal-close:focus-visible,
.search-modal-clear:focus-visible {
    outline: 2px solid var(--text-tertiary);
    outline-offset: 2px;
}

.search-modal-item:hover {
    background: var(--bg-tertiary);
}

.search-modal-item svg {
    flex-shrink: 0;
    color: var(--text-secondary);
}

.search-modal-item span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.search-modal-item-new {
    font-weight: 500;
}

.search-modal-item-new svg {
    color: var(--text-primary);
}

.search-modal-section {
    padding: var(--spacing-xs) var(--spacing-md) 4px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.search-modal-item-chat {
    padding-left: var(--spacing-md);
}

.search-modal-item-chat svg {
    color: var(--text-secondary);
    opacity: 0.9;
}

.search-modal-item-chat .search-modal-item-title {
    color: var(--text-primary);
}

.search-modal-no-results {
    padding: var(--spacing-lg) var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    text-align: center;
}

.search-modal-empty-state {
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    text-align: center;
}

/* Modal de búsqueda: dark mode */
[data-theme="dark"] .search-modal-box {
    background: #2f2f2f;
    border-color: rgba(117, 117, 117, 0.2);
}

[data-theme="dark"] .search-modal-input-wrap {
    border-bottom-color: rgba(117, 117, 117, 0.2);
}

[data-theme="dark"] .search-modal-input {
    background: #2f2f2f;
    border-color: rgba(117, 117, 117, 0.2);
}

[data-theme="dark"] .search-modal-input::placeholder {
    color: #757575;
}

[data-theme="dark"] .search-modal-input:focus {
    border-color: #757575;
}

[data-theme="dark"] .search-modal-input:focus-visible {
    outline-color: #757575;
}

[data-theme="dark"] .search-modal-clear,
[data-theme="dark"] .search-modal-close {
    color: #757575;
}

[data-theme="dark"] .search-modal-clear:hover,
[data-theme="dark"] .search-modal-close:hover {
    background: rgba(117, 117, 117, 0.25);
    color: var(--text-primary);
}

[data-theme="dark"] .search-modal-item:focus-visible,
[data-theme="dark"] .search-modal-close:focus-visible,
[data-theme="dark"] .search-modal-clear:focus-visible {
    outline-color: #757575;
}

[data-theme="dark"] .search-modal-item:hover {
    background: rgba(117, 117, 117, 0.2);
}

[data-theme="dark"] .search-modal-item svg,
[data-theme="dark"] .search-modal-item-chat svg {
    color: #757575;
}

[data-theme="dark"] .search-modal-section,
[data-theme="dark"] .search-modal-no-results,
[data-theme="dark"] .search-modal-empty-state {
    color: #757575;
}

/* Evitar scroll del body cuando el modal está abierto */
body.search-modal-open {
    overflow: hidden;
}

/* Badges de estado */
.estado-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-align: center;
}

.estado-tramite {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.estado-sentencia {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
}

.estado-investigacion {
    background: rgba(251, 191, 36, 0.1);
    color: #fbbf24;
}

.estado-archivado {
    background: rgba(107, 114, 128, 0.1);
    color: #6b7280;
}

/* Botones de DataTables */
.dt-buttons {
    margin-bottom: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.dt-button {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color) !important;
    padding: 8px 16px !important;
    border-radius: var(--border-radius-sm) !important;
    font-size: var(--font-size-sm) !important;
    font-weight: 500 !important;
    cursor: pointer !important;
    transition: all var(--transition-base) !important;
}

.dt-button:hover {
    background: var(--bg-tertiary) !important;
    border-color: var(--border-color) !important;
}

.dt-button.active {
    background: var(--bg-tertiary) !important;
}

/* CRUD lists: evitar wrap en valores (scroll horizontal SOLO en la tabla) */
.manage-list-table-wrap {
    /* Evita que DataTables se "salga" del card. El scroll horizontal, cuando aplica,
       vive dentro de .dataTables_scrollBody. */
    overflow-x: hidden;
    max-width: 100%;
}

/* DataTables: asegurar que los wrappers no excedan el ancho del contenedor. */
.manage-list-table-wrap .dataTables_wrapper,
.manage-list-table-wrap .dataTables_scroll,
.manage-list-table-wrap .dataTables_scrollHead,
.manage-list-table-wrap .dataTables_scrollBody,
.manage-list-table-wrap .dataTables_scrollFoot {
    max-width: 100%;
}

.manage-list-table-wrap th,
.manage-list-table-wrap td,
.manage-list-table-wrap table.dataTable th,
.manage-list-table-wrap table.dataTable td {
    white-space: nowrap;
}

/* Manage > Agenda: permitir wrap legible (sin columnas ultra angostas). */
#agendaTable td:nth-child(1),
#agendaTable td:nth-child(2),
#agendaTable td:nth-child(3) {
    white-space: normal;
    vertical-align: top;
}

/* Anchos mínimos para que DataTables no colapse el contenido. */
#agendaTable td:nth-child(1) { min-width: 280px; }
#agendaTable td:nth-child(2) { min-width: 180px; }
#agendaTable td:nth-child(3) { min-width: 260px; }

#agendaTable .agenda-cell {
    color: var(--text-secondary);
    overflow-wrap: break-word;
    word-break: normal;
    line-height: 1.25;
}
#agendaTable .agenda-cell--title {
    color: var(--text-primary);
    font-weight: 650;
}

/* CRUD lists: row hover highlight (all tables inside manage-list-table-wrap). */
.manage-list-table-wrap table tbody tr {
    transition: background-color var(--transition-fast);
}
.manage-list-table-wrap table tbody tr:hover {
    background: rgba(0, 0, 0, 0.035);
}
[data-theme="dark"] .manage-list-table-wrap table tbody tr:hover {
    background: rgba(255, 255, 255, 0.06);
}

/* Consultas > Normativa: permitir wrap SOLO en el contenido de "Nombre" (TD),
   pero mantener el header legible y evitar cortes letra-por-letra. */
.manage-list-table-wrap table.normativa-table th:nth-child(2) {
    white-space: nowrap;
}
.manage-list-table-wrap table.normativa-table td:nth-child(2) {
    white-space: normal;
    overflow-wrap: break-word;
    word-break: normal;
    min-width: 360px;
}

/* Consultas > Normativa: permitir wrap en "Rama" (4ta columna tras quitar Categoria). */
.manage-list-table-wrap table.normativa-table th:nth-child(4) {
    white-space: nowrap;
}
.manage-list-table-wrap table.normativa-table td:nth-child(4) {
    white-space: normal;
    overflow-wrap: break-word;
    word-break: normal;
    min-width: 220px;
}

/* DataTables con scrollX: el overflow vive aquí (solo tabla) */
.manage-list-table-wrap .dataTables_scrollBody {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
}

/* Importante: NO forzar widths en wrappers de scroll.
   DataTables calcula y sincroniza los anchos para que el header se desplace junto al body. */

/* Filtros y búsqueda de DataTables */
.dataTables_filter {
    margin-bottom: var(--spacing-md);
}

.dataTables_filter label {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.dataTables_filter input {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--border-radius-sm);
    margin-left: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.dataTables_filter input:focus {
    outline: none;
    border-color: var(--text-primary);
}

.dataTables_length {
    margin-bottom: var(--spacing-md);
}

.dataTables_length label {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.dataTables_length select {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 6px 8px;
    border-radius: var(--border-radius-sm);
    margin: 0 var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.dataTables_length select:focus {
    outline: none;
    border-color: var(--text-primary);
}

.dataTables_info {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) 0;
}

.dataTables_paginate {
    margin-top: var(--spacing-md);
}

.dataTables_paginate .paginate_button {
    background: none !important;
    color: var(--text-primary) !important;
    border: none !important;
    padding: 0 8px !important;
    margin: 0 6px !important;
    border-radius: 0 !important;
    cursor: pointer !important;
    transition: color var(--transition-base) !important;
    text-decoration: none !important;
}

.dataTables_paginate .paginate_button:hover {
    color: var(--accent-color, #3b82f6) !important;
}

.dataTables_paginate .paginate_button.current {
    font-weight: 600 !important;
    color: var(--accent-color, #3b82f6) !important;
    background: none !important;
    border: none !important;
}

.dataTables_paginate .paginate_button.disabled {
    opacity: 0.5;
    cursor: not-allowed !important;
}

/* Contenedor de ventanas minimizadas */
.minimized-windows-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    z-index: 9999;
    max-height: 80px;
    overflow-x: auto;
    overflow-y: hidden;
    align-items: center;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
}

.minimized-windows-container::-webkit-scrollbar {
    height: 4px;
}

.minimized-windows-container::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 2px;
}

.minimized-windows-container::-webkit-scrollbar-thumb {
    background: var(--text-secondary);
    border-radius: 2px;
}

.minimized-windows-container::-webkit-scrollbar-thumb:hover {
    background: var(--text-primary);
}

/* Ventana minimizada */
.minimized-window {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    min-width: 200px;
    max-width: 300px;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.minimized-window:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.minimized-window-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--text-secondary);
}

.minimized-window-icon i {
    font-size: 16px;
}

.minimized-window-title {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
}

.minimized-window-restore,
.minimized-window-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    padding: 0;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.minimized-window-restore:hover {
    background: var(--bg-tertiary);
    color: var(--accent-color, #3b82f6);
}

.minimized-window-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-danger, #ef4444);
}

.minimized-window-restore svg,
.minimized-window-close svg {
    width: 14px;
    height: 14px;
}

/* Área de contenido en gestión: listas más pegadas al header */
.manage-content-area {
    padding-top: 60px;
}
.manage-content-area--list {
    padding-top: 1.25rem;
}
.manage-content-area--wizard {
    padding-top: 1.25rem;
}

/* Listas de gestión (Casos, Usuarios) – menos top, tabla diferenciada */
.manage-list-content {
    padding: var(--spacing-md) var(--spacing-xl) var(--spacing-xl);
    padding-top: 0.5rem;
}
.manage-list-inner {
    max-width: 64rem;
    margin: 0 auto;
}
.manage-list-table-wrap {
    overflow-x: visible;
    background: var(--bg-card-content);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
}

/* Iconos de acción en listas CRUD */
.manage-action-link,
.manage-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    font-size: inherit;
    padding: 0.35rem;
    min-width: 2rem;
    min-height: 2rem;
}
.manage-action-link {
    color: var(--text-primary);
    text-decoration: none;
    margin-right: 0.25rem;
}
.manage-action-link:hover {
    color: var(--accent-color, #3b82f6);
}
.manage-action-btn {
    background: none;
    border: none;
    cursor: pointer;
    /* Igualar tono con los íconos de enlace (editar, etc.) */
    color: var(--text-primary);
    text-decoration: none;
}
.manage-action-btn:hover {
    color: var(--accent-color, #3b82f6);
}

/* Acción destructiva */
.manage-action-btn.manage-action-btn--delete { color: var(--text-primary); }
.manage-action-btn.manage-action-btn--delete:hover {
    color: #ef4444;
}

/* Casos: ícono editar cliente visible solo al hover del nombre */
.case-client-edit-link {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(1px);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.case-client-cell:hover .case-client-edit-link {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

/* Alert "Guardado correctamente" – adaptado al tema */
.alert-saved {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-lg);
    background: var(--alert-saved-bg);
    color: var(--alert-saved-text);
    border: 1px solid var(--alert-saved-border);
}

.alert-box {
    color: var(--text-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border-color);
}
.alert-box--danger {
    background: var(--alert-danger-bg);
    color: var(--alert-danger-text);
    border-color: var(--alert-danger-border);
}
.alert-box--neutral {
    background: var(--alert-neutral-bg);
    color: var(--alert-neutral-text);
    border-color: var(--alert-neutral-border);
}

/* Accordion (global) */
.app-acc-panel {
    height: 0;
    overflow: hidden;
    display: none;
    transition: height 200ms ease;
    will-change: height;
}

/* Case detail modal: denser key/value tables + clearer labels */
.case-kv-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
    font-size: 13px;
}
.case-kv-table tr + tr td {
    border-top: 1px solid var(--border-color);
}
.case-kv-key {
    padding: 6px 10px;
    width: 36%;
    vertical-align: top;
    color: var(--text-secondary);
    font-weight: 650;
    border-right: 1px solid var(--border-color);
    word-break: break-word;
}
.case-kv-val {
    padding: 6px 10px;
    vertical-align: top;
    color: var(--text-primary);
    word-break: break-word;
}

/* Witness layout */
.case-witness-wrap {
    display: grid;
    gap: 10px;
}
.case-witness-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-secondary);
    padding: 10px 10px;
}
.case-witness-title {
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.2;
}
.case-witness-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 12px;
}
.case-witness-item {
    min-width: 0;
}
.case-witness-k {
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 650;
    margin-bottom: 2px;
}
.case-witness-v {
    color: var(--text-primary);
    line-height: 1.35;
    word-break: break-word;
}

/* Relato rich text */
.case-richtext--relato {
    color: var(--text-primary);
    line-height: 1.55;
}
.case-richtext--relato h1,
.case-richtext--relato h2,
.case-richtext--relato h3,
.case-richtext--relato h4,
.case-richtext--relato h5,
.case-richtext--relato h6 {
    margin: 0 0 10px;
    color: var(--text-primary);
}
.case-richtext--relato p {
    margin: 0 0 10px;
}
.case-richtext--relato ul,
.case-richtext--relato ol {
    margin: 0 0 10px 18px;
}
.case-richtext--relato blockquote {
    margin: 0 0 10px;
    padding-left: 12px;
    border-left: 3px solid var(--border-color);
    color: var(--text-secondary);
}

/* Formulario de casos (wizard) – dark/light mode */
.case-wizard-container {
    color: var(--text-primary);
}
.case-wizard-container--tight {
    padding-top: 0.5rem;
    padding-bottom: 1.5rem;
}
.case-wizard-container .text-muted {
    color: var(--text-tertiary) !important;
}
.case-wizard-container .card {
    background: var(--bg-card-content);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.case-wizard-container .card-header {
    background: var(--bg-tertiary) !important;
    border-color: var(--border-color);
    color: var(--text-primary);
}
.case-wizard-container .form-label {
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}
.case-wizard-container .form-control,
.case-wizard-container .form-select {
    background: var(--bg-primary);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.case-wizard-container .form-control:focus,
.case-wizard-container .form-select:focus {
    background: var(--bg-primary);
    border-color: var(--accent-color, #3b82f6);
    color: var(--text-primary);
}
.case-wizard-container .form-control::placeholder {
    color: var(--text-tertiary);
}
.case-wizard-container .form-check-input {
    background-color: var(--bg-primary);
    border-color: var(--border-color);
}
.case-wizard-container .form-check-input:checked {
    background-color: var(--accent-color, #3b82f6);
    border-color: var(--accent-color, #3b82f6);
}
.case-wizard-container .form-check-label {
    color: var(--text-primary);
}
.case-wizard-container .alert-success {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.case-wizard-container .alert-danger {
    background: rgba(239, 68, 68, 0.15);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.case-wizard-container .alert-info {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.case-wizard-container .alert-link {
    color: var(--accent-color, #3b82f6);
}
.case-wizard-container .btn-primary {
    background: #000;
    border-color: #000;
    color: #fff;
}
.case-wizard-container .btn-primary:hover {
    background: #333;
    border-color: #333;
    color: #fff;
}
.case-wizard-container .btn-outline-secondary {
    border-color: var(--border-color);
    color: var(--text-secondary);
}
.case-wizard-container .btn-outline-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.case-wizard-container .btn-success {
    background: #22c55e;
    border-color: #22c55e;
    color: #fff;
}
.case-wizard-container .btn-wizard-submit {
    background: #000;
    border-color: #000;
    color: #fff;
}
.case-wizard-container .btn-wizard-submit:hover {
    background: #333;
    border-color: #333;
    color: #fff;
}
[data-theme="dark"] .case-wizard-container .btn-wizard-submit {
    background: #fff;
    border-color: #fff;
    color: #000;
}
[data-theme="dark"] .case-wizard-container .btn-wizard-submit:hover {
    background: #e5e5e5;
    border-color: #e5e5e5;
    color: #000;
}
.case-wizard-container .btn-link.text-secondary {
    color: var(--text-tertiary) !important;
}
.case-wizard-container .btn-link:hover {
    color: var(--text-primary) !important;
}
.case-wizard-container .border-top {
    border-color: var(--border-color) !important;
}
.case-wizard-container .wizard-dot {
    background: var(--text-tertiary) !important;
}
.case-wizard-container .wizard-dot.active {
    background: var(--text-primary) !important;
    opacity: 1 !important;
}
.case-wizard-container hr {
    border-color: var(--border-color);
}
.case-wizard-container .card-subtitle.text-muted {
    color: var(--text-tertiary) !important;
}

/* iPad / tablet baseline (portrait + landscape): global responsive balance */
@media (min-width: 769px) and (max-width: 1180px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2.25rem;
    }

    .sidebar {
        width: 240px;
    }

    .chat-header {
        padding-left: var(--spacing-lg);
        padding-right: var(--spacing-lg);
    }

    .messages-wrapper {
        max-width: 100%;
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }

    .message.user .message-content,
    .message.ai .message-content {
        max-width: 92%;
    }

    .manage-list-content {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }

    .manage-list-inner {
        max-width: 100%;
    }

    .manage-list-table-wrap {
        padding: 12px;
    }

    .dashboard-panels,
    .biblioteca-home-bottom {
        grid-template-columns: 1fr;
    }

    .case-witness-grid {
        grid-template-columns: 1fr;
    }

    .archivos-header,
    .agenda-header {
        padding-left: var(--spacing-lg);
        padding-right: var(--spacing-lg);
    }

    .archivos-toolbar {
        padding-left: var(--spacing-lg);
        padding-right: var(--spacing-lg);
    }

    .archivos-content.view-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }

    .chat-sidebar {
        width: min(360px, 86vw);
        right: -86vw;
    }

    .archivos-section.with-chat-sidebar,
    .agenda-section.with-chat-sidebar {
        margin-right: 0;
    }
}