/* ============================================
   DOE Extremadura - Styles
   ============================================ */

/* CSS Variables */
:root {
    /* Colors - Verde Extremadura */
    --color-primary: #006847;
    --color-primary-hover: #005239;
    --color-primary-light: #d1fae5;
    --color-secondary: #64748b;
    --color-secondary-hover: #475569;
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Neutrals */
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 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: 2rem;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-full: 9999px;

    /* Shadows */
    --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);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-gray-800);
    background-color: var(--color-gray-50);
    min-height: 100vh;
}

#app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ============================================
   Header
   ============================================ */
.header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    color: var(--color-white);
    padding: var(--spacing-6) var(--spacing-4);
    box-shadow: var(--shadow-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 100%;
}

.header-content {
    max-width: 1200px;
    flex: 1;
}

/* Logout Button */
.btn-logout {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-logout:active {
    background: rgba(255, 255, 255, 0.3);
}

.btn-logout .btn-icon {
    width: 18px;
    height: 18px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.logo-icon {
    width: 32px;
    height: 32px;
}

.logo h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.subtitle {
    margin-top: var(--spacing-2);
    opacity: 0.9;
    font-size: var(--font-size-sm);
}

/* ============================================
   Main Content
   ============================================ */
.main {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: var(--spacing-6) var(--spacing-4);
}

/* Card */
.card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-4) var(--spacing-6);
    border-bottom: 1px solid var(--color-gray-200);
}

.card-header h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-800);
}

/* ============================================
   Search Form
   ============================================ */
.search-section {
    margin-bottom: var(--spacing-6);
}

.search-form {
    padding: var(--spacing-6);
}

.form-row {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

.form-row:last-child {
    margin-bottom: 0;
}

.form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.form-group-lg {
    flex: 2;
}

.form-group-sm {
    flex: 0.5;
    min-width: 100px;
}

.form-group-full {
    width: 100%;
    margin-bottom: var(--spacing-4);
}

.form-group-full:last-child {
    margin-bottom: 0;
}

.btn-full {
    width: 100%;
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-2);
}

.form-group input,
.form-group select {
    height: 42px;
    padding: 0 var(--spacing-3);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
    background: var(--color-white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group input::placeholder {
    color: var(--color-gray-400);
}

/* Disabled cascade filters */
.form-group select:disabled {
    background-color: var(--color-gray-100);
    color: var(--color-gray-400);
    cursor: not-allowed;
    border-color: var(--color-gray-200);
}

.form-group select:disabled option {
    color: var(--color-gray-400);
}

/* Select with search (for materia) */
.select-search-container {
    position: relative;
}

.select-search-input {
    width: 100%;
    height: 42px;
    padding: 0 var(--spacing-3);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
    background: var(--color-white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    margin-bottom: var(--spacing-2);
}

.select-search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.select-search-input::placeholder {
    color: var(--color-gray-400);
}

.select-search-select {
    width: 100%;
    height: 42px;
    padding: 0 var(--spacing-3);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
    background: var(--color-white);
}

/* Form help text */
.form-help {
    display: block;
    margin-top: var(--spacing-1);
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    font-style: italic;
}

/* Validation message */
.validation-message {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--radius-md);
    color: var(--color-error);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-4);
}

.validation-message.hidden {
    display: none;
}

.validation-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Loading state for cascade filters */
.form-group select.loading {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M12 6v6l4 2'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 16px;
}

/* Advanced Filters */
.advanced-filters {
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--color-gray-200);
    margin-top: var(--spacing-4);
}

.advanced-filters.hidden {
    display: none;
}

#toggle-filters {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.icon-chevron {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-base);
}

.icon-chevron.rotated {
    transform: rotate(180deg);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    height: 42px;
    padding: 0 var(--spacing-5);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
}

.btn-secondary {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
}

.btn-secondary:hover {
    background: var(--color-gray-200);
}

.btn-link {
    background: transparent;
    color: var(--color-primary);
    padding: 0;
    height: auto;
}

.btn-link:hover {
    color: var(--color-primary-hover);
}

.btn-ai {
    background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
    color: var(--color-white);
    border: none;
}

.btn-ai:hover {
    background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 100%);
}

.btn-icon {
    width: 18px;
    height: 18px;
}

.btn-icon-only {
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-500);
    transition: all var(--transition-fast);
}

.btn-icon-only:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
}

.btn-icon-only svg {
    width: 20px;
    height: 20px;
}

/* Pagination Buttons */
.btn-pagination {
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    color: var(--color-gray-700);
    height: 36px;
    padding: 0 var(--spacing-3);
}

.btn-pagination:hover:not(:disabled) {
    background: var(--color-gray-50);
    border-color: var(--color-gray-400);
}

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

.btn-pagination svg {
    width: 16px;
    height: 16px;
}

/* ============================================
   Results Section
   ============================================ */
.results-section .card {
    min-height: 400px;
}

.results-info {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* Loading State */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-12);
    color: var(--color-gray-500);
}

.loading-state.hidden {
    display: none;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-state p {
    margin-top: var(--spacing-4);
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-12);
    text-align: center;
}

.empty-state.hidden {
    display: none;
}

.empty-icon {
    width: 64px;
    height: 64px;
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-4);
}

.empty-state h3 {
    font-size: var(--font-size-lg);
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-2);
}

.empty-state p {
    color: var(--color-gray-500);
    max-width: 400px;
}

/* Error State */
.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-12);
    text-align: center;
}

.error-state.hidden {
    display: none;
}

.error-icon {
    width: 64px;
    height: 64px;
    color: var(--color-error);
    margin-bottom: var(--spacing-4);
}

.error-state h3 {
    font-size: var(--font-size-lg);
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-2);
}

.error-state p {
    color: var(--color-gray-500);
    max-width: 400px;
    margin-bottom: var(--spacing-4);
}

/* Results Container */
.results-container {
    padding: 0;
}

.results-container.hidden {
    display: none;
}

.table-wrapper {
    overflow-x: auto;
}

/* Results Table */
.results-table {
    width: 100%;
    border-collapse: collapse;
}

.results-table th {
    background: var(--color-gray-50);
    padding: var(--spacing-3) var(--spacing-4);
    text-align: left;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-600);
    border-bottom: 1px solid var(--color-gray-200);
    white-space: nowrap;
}

.results-table td {
    padding: var(--spacing-3) var(--spacing-4);
    border-bottom: 1px solid var(--color-gray-100);
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
}

.results-table tbody tr {
    cursor: pointer;
    transition: background var(--transition-fast);
}

.results-table tbody tr:hover {
    background: var(--color-gray-50);
}

.results-table .cell-link {
    color: var(--color-primary);
    text-decoration: none;
}

.results-table .cell-link:hover {
    text-decoration: underline;
}

/* PDF actions container */
.results-table .pdf-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
}

/* Download button */
.results-table .download-btn {
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: 4px;
    width: 26px;
    height: 26px;
    cursor: pointer;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, transform 0.1s;
}

.results-table .download-btn:hover {
    background: var(--color-primary-dark, #1d4ed8);
    transform: scale(1.05);
}

.results-table .download-btn:active {
    transform: scale(0.95);
}

/* BOP page link button */
.results-table .bop-link {
    background: var(--color-gray-600, #4b5563);
    color: white;
    border: none;
    border-radius: 4px;
    width: 26px;
    height: 26px;
    cursor: pointer;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: background-color 0.2s, transform 0.1s;
}

.results-table .bop-link:hover {
    background: var(--color-gray-700, #374151);
    transform: scale(1.05);
}

.results-table .bop-link:active {
    transform: scale(0.95);
}

.results-table .url-link {
    background: var(--color-primary, #3b82f6);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 4px 8px;
    height: 26px;
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: background-color 0.2s, transform 0.1s;
}

.results-table .url-link:hover {
    background: var(--color-primary-dark, #2563eb);
    transform: scale(1.05);
}

.results-table .url-link:active {
    transform: scale(0.95);
}

.results-table .cell-date {
    white-space: nowrap;
}

.results-table .cell-center {
    text-align: center;
}

/* Column Filter Row */
.results-table .filter-row th {
    background: var(--color-gray-100);
    padding: var(--spacing-2) var(--spacing-3);
    border-bottom: none;
}

.results-table .filter-cell {
    vertical-align: middle;
}

.results-table .column-filter-input {
    width: 100%;
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-xs);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    background: var(--color-white);
    color: var(--color-gray-700);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.results-table .column-filter-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

.results-table .column-filter-input::placeholder {
    color: var(--color-gray-400);
    font-size: var(--font-size-xs);
}

.results-table .header-row th {
    border-top: 1px solid var(--color-gray-200);
}

/* Load More Container */
.load-more-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-4);
    padding: var(--spacing-4) var(--spacing-6);
    border-top: 1px solid var(--color-gray-200);
    background: var(--color-gray-50);
}

.load-more-container.hidden {
    display: none;
}

#load-more-btn {
    min-width: 180px;
}

#load-more-btn:disabled {
    opacity: 0.7;
    cursor: wait;
}

#load-all-btn {
    min-width: 180px;
}

#load-all-btn:disabled {
    opacity: 0.7;
    cursor: wait;
}

.loaded-count {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

/* Clear Filter Container */
.clear-filter-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-4);
    padding: var(--spacing-3) var(--spacing-6);
    background: linear-gradient(135deg, rgba(129, 140, 248, 0.1), rgba(99, 102, 241, 0.1));
    border-top: 1px solid var(--color-primary-light);
    border-bottom: 1px solid var(--color-primary-light);
}

.clear-filter-container.hidden {
    display: none;
}

.filter-active-text {
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

#clear-filter-btn {
    font-size: var(--font-size-xs);
    height: 32px;
    padding: 0 var(--spacing-3);
}

/* Local filter indicator (gradient variant) */
.local-filter-indicator {
    background: linear-gradient(135deg, #10b981, #059669) !important;
}

/* Pagination - Hidden by default, we use load more buttons instead */
.pagination {
    display: none !important;
}

.pagination-info {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ============================================
   Modal
   ============================================ */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
}

.modal.hidden {
    display: none;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    animation: modalIn 0.2s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--spacing-5) var(--spacing-6);
    border-bottom: 1px solid var(--color-gray-200);
}

.modal-header h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-800);
    padding-right: var(--spacing-4);
    line-height: 1.4;
}

.modal-body {
    padding: var(--spacing-6);
    overflow-y: auto;
    flex: 1;
}

.modal-body .detail-item {
    margin-bottom: var(--spacing-4);
}

.modal-body .detail-item:last-child {
    margin-bottom: 0;
}

.modal-body .detail-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-1);
}

.modal-body .detail-value {
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
}

.modal-body .detail-content {
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    padding: var(--spacing-4);
    margin-top: var(--spacing-4);
    font-size: var(--font-size-sm);
    line-height: 1.7;
    white-space: pre-wrap;
    max-height: 300px;
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-3);
    padding: var(--spacing-4) var(--spacing-6);
    border-top: 1px solid var(--color-gray-200);
    background: var(--color-gray-50);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: var(--spacing-6) var(--spacing-4);
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    border-top: 1px solid var(--color-gray-200);
}

.footer-link {
    margin-top: var(--spacing-2);
}

.footer a {
    color: var(--color-primary);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* ============================================
   AI Assistant
   ============================================ */
.ai-assistant {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-6);
    overflow: hidden;
    border: 2px solid var(--color-primary-light);
}

.ai-assistant-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4) var(--spacing-5);
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-white) 100%);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.ai-assistant-header:hover {
    background: var(--color-primary-light);
}

.ai-assistant-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ai-assistant-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-white);
}

.ai-assistant-title {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.ai-assistant-title span:first-child {
    font-weight: 600;
    color: var(--color-gray-800);
    font-size: var(--font-size-base);
}

.ai-assistant-badge {
    font-size: var(--font-size-xs);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: var(--color-gray-200);
    color: var(--color-gray-600);
    width: fit-content;
}

.ai-assistant-badge.available {
    background: #dcfce7;
    color: #166534;
}

.ai-assistant-badge.unavailable {
    background: #fef2f2;
    color: #991b1b;
}

.ai-assistant-expand {
    background: none;
    border: none;
    padding: var(--spacing-2);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.ai-assistant-expand:hover {
    background: var(--color-gray-200);
}

.ai-assistant-expand svg {
    width: 20px;
    height: 20px;
    color: var(--color-gray-500);
    transition: transform var(--transition-base);
}

.ai-assistant-expand.expanded svg {
    transform: rotate(180deg);
}

.ai-assistant-body {
    border-top: 1px solid var(--color-gray-200);
}

.ai-assistant-body.hidden {
    display: none;
}

/* Chat Messages */
.ai-chat-messages {
    height: 500px;
    overflow-y: auto;
    padding: var(--spacing-4);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
    background: var(--color-gray-50);
}

.ai-message {
    max-width: 95%;
    animation: fadeIn 0.2s ease;
}

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

.ai-message-user {
    align-self: flex-end;
}

.ai-message-assistant {
    align-self: flex-start;
}

.ai-message-content {
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.ai-message-user .ai-message-content {
    background: var(--color-primary);
    color: var(--color-white);
    border-bottom-right-radius: var(--radius-sm);
}

.ai-message-assistant .ai-message-content {
    background: var(--color-white);
    color: var(--color-gray-800);
    border-bottom-left-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.ai-message-content ul {
    margin: var(--spacing-2) 0;
    padding-left: var(--spacing-5);
}

.ai-message-content li {
    margin-bottom: var(--spacing-1);
}

/* Markdown rendered content */
.ai-message-content h2,
.ai-message-content h3,
.ai-message-content h4 {
    margin-top: var(--spacing-3);
    margin-bottom: var(--spacing-2);
    font-weight: 600;
    line-height: 1.3;
}

.ai-message-content h2 {
    font-size: var(--font-size-base);
}

.ai-message-content h3 {
    font-size: var(--font-size-sm);
}

.ai-message-content h4 {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.ai-message-content strong {
    font-weight: 600;
}

.ai-message-content em {
    font-style: italic;
}

.ai-message-content hr {
    border: none;
    border-top: 1px solid var(--color-gray-200);
    margin: var(--spacing-3) 0;
}

.ai-message-content p {
    margin-bottom: var(--spacing-2);
}

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

/* Typing Indicator */
.ai-typing-indicator {
    display: flex;
    gap: 4px;
    padding: 4px 0;
}

.ai-typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--color-gray-400);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

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

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

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-4px); opacity: 1; }
}

.ai-thinking {
    color: var(--color-gray-500);
    font-style: italic;
}

.ai-analyzing {
    color: var(--color-primary);
    font-style: italic;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.ai-analyzing::before {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-primary-light);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.ai-document-info {
    background: var(--color-primary-light);
    border-left: 3px solid var(--color-primary);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-3);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.ai-document-info > :first-child {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    width: 100%;
}

.ai-pdf-link {
    color: var(--color-primary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: var(--spacing-1) var(--spacing-2);
    background: var(--color-white);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.ai-pdf-link:hover {
    background: var(--color-gray-100);
    text-decoration: underline;
}

/* File paths display */
.ai-file-paths,
.ai-generated-files {
    background: var(--color-gray-100);
    border-radius: var(--radius-sm);
    padding: var(--spacing-2) var(--spacing-3);
    margin-top: var(--spacing-2);
    font-size: var(--font-size-xs);
}

.ai-generated-files {
    background: var(--color-success);
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    border: 1px solid #6ee7b7;
    margin-top: var(--spacing-4);
}

.ai-generated-files hr {
    display: none;
}

.ai-path-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-2);
    margin-top: var(--spacing-1);
    word-break: break-all;
}

.ai-path-label {
    color: var(--color-gray-600);
    font-weight: 500;
    white-space: nowrap;
    min-width: 80px;
}

.ai-path-item code {
    background: var(--color-white);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-sm);
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: var(--font-size-xs);
    color: var(--color-gray-700);
    border: 1px solid var(--color-gray-200);
    flex: 1;
    overflow-wrap: break-word;
}

.ai-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    white-space: nowrap;
    transition: background-color 0.2s, transform 0.1s;
    flex-shrink: 0;
}

.ai-download-btn:hover {
    background: var(--color-primary-dark, #1d4ed8);
    transform: scale(1.02);
}

.ai-download-btn:active {
    transform: scale(0.98);
}

.ai-error {
    color: var(--color-error);
}

/* Search Results in Chat */
.ai-search-results {
    margin: var(--spacing-3) 0;
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    padding: var(--spacing-3);
    border: 1px solid var(--color-gray-200);
}

.ai-results-header {
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-2);
    padding-bottom: var(--spacing-2);
    border-bottom: 1px solid var(--color-gray-200);
}

.ai-results-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ai-result-item {
    padding: var(--spacing-2);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.ai-result-item:hover {
    background: var(--color-gray-100);
}

.ai-result-title {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    font-weight: 500;
}

.ai-result-meta {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

.ai-results-more {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    text-align: center;
    padding-top: var(--spacing-2);
    border-top: 1px solid var(--color-gray-200);
    margin-top: var(--spacing-2);
}

/* Chat Input */
.ai-chat-input-container {
    display: flex;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--color-white);
    border-top: 1px solid var(--color-gray-200);
}

.ai-chat-input {
    flex: 1;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    font-family: inherit;
    resize: none;
    min-height: 40px;
    max-height: 120px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.ai-chat-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.ai-chat-input:disabled {
    background: var(--color-gray-100);
    cursor: not-allowed;
}

.ai-chat-send {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.ai-chat-send:hover:not(:disabled) {
    background: var(--color-primary-hover);
}

.ai-chat-send:disabled {
    background: var(--color-gray-300);
    cursor: not-allowed;
}

.ai-chat-send svg {
    width: 18px;
    height: 18px;
    color: var(--color-white);
}

/* Quick Actions */
.ai-quick-actions {
    display: flex;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--color-gray-50);
    border-top: 1px solid var(--color-gray-200);
    flex-wrap: wrap;
}

.ai-quick-action {
    padding: var(--spacing-2) var(--spacing-3);
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.ai-quick-action:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* AI Search Indicator in Results Table */
.ai-search-indicator {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: 12px;
    padding: 4px 12px;
    background: linear-gradient(135deg, #818cf8, #6366f1);
    color: white;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    vertical-align: middle;
}

.ai-indicator-icon {
    font-size: 14px;
}

/* Search Summary in Chat */
.ai-search-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 12px;
    padding: 12px;
    background: var(--color-gray-100);
    border-radius: 8px;
    border-left: 3px solid var(--color-primary);
}

.ai-result-count {
    font-weight: 600;
    color: var(--color-primary);
}

.ai-view-results-btn {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.ai-view-results-btn:hover {
    background: var(--color-primary-hover);
}

/* AI Searching Indicator */
.ai-searching {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    font-style: italic;
}

.ai-searching::before {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-primary-light);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* ============================================
   Utility Classes
   ============================================ */
.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: var(--spacing-3);
    }

    .header-content {
        text-align: center;
    }

    .logo {
        justify-content: center;
    }

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

    .form-row {
        flex-direction: column;
    }

    .form-group,
    .form-group-lg,
    .form-group-sm {
        flex: none;
        width: 100%;
    }

    .card-header {
        flex-direction: column;
        gap: var(--spacing-2);
        text-align: center;
    }

    .results-table th,
    .results-table td {
        padding: var(--spacing-2) var(--spacing-3);
    }

    .pagination {
        flex-direction: column;
        gap: var(--spacing-2);
    }

    .modal-content {
        max-height: 100vh;
        border-radius: 0;
    }

    .modal-footer {
        flex-direction: column;
    }

    .modal-footer .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .header {
        padding: var(--spacing-4);
    }

    .logo h1 {
        font-size: var(--font-size-xl);
    }

    .main {
        padding: var(--spacing-4) var(--spacing-3);
    }

    .search-form,
    .card-header,
    .modal-header,
    .modal-body,
    .modal-footer {
        padding-left: var(--spacing-4);
        padding-right: var(--spacing-4);
    }

    /* Touch targets minimum 44px for accessibility */
    .btn,
    .btn-primary,
    .btn-secondary,
    .form-group input,
    .form-group select,
    .ai-chat-send,
    .ai-quick-action {
        min-height: 44px;
    }

    /* Buttons without fixed min-width on mobile */
    #load-more-btn,
    #load-all-btn {
        min-width: auto;
        width: 100%;
    }

    .load-more-container {
        flex-direction: column;
        gap: var(--spacing-3);
    }

    /* Form groups without min-width */
    .form-group-sm {
        min-width: auto;
    }

    /* AI Chat adaptive height */
    .ai-chat-messages {
        height: auto;
        max-height: 300px;
    }

    /* Results section more compact */
    .results-section .card {
        min-height: 200px;
    }

    .results-table th,
    .results-table td {
        font-size: var(--font-size-xs);
        padding: var(--spacing-2);
    }

    /* Modal reduced padding */
    .modal-content {
        padding-left: var(--spacing-4);
        padding-right: var(--spacing-4);
    }

    /* Smaller icons on mobile */
    .empty-icon,
    .error-icon {
        width: 48px;
        height: 48px;
    }

    .ai-assistant-icon {
        width: 32px;
        height: 32px;
    }

    .ai-assistant-icon svg {
        width: 18px;
        height: 18px;
    }

    /* AI Assistant header more compact */
    .ai-assistant-header {
        padding: var(--spacing-3) var(--spacing-4);
    }

    .ai-assistant-title span:first-child {
        font-size: var(--font-size-sm);
    }

    /* Quick actions wrap better */
    .ai-quick-actions {
        padding: var(--spacing-2) var(--spacing-3);
    }

    .ai-quick-action {
        padding: var(--spacing-2);
        font-size: 11px;
    }

    /* Chat input more compact */
    .ai-chat-input-container {
        padding: var(--spacing-2) var(--spacing-3);
    }

    /* Search indicator smaller */
    .ai-search-indicator {
        padding: 3px 8px;
        font-size: 11px;
        margin-left: 8px;
    }

    /* Pagination more compact */
    .pagination {
        padding: var(--spacing-3) var(--spacing-4);
        gap: var(--spacing-2);
    }

    .pagination-info {
        font-size: var(--font-size-xs);
    }
}