/* ============================================================
 * THEME - DARK MODE
 * ============================================================ */

/* ============================================================
 * VARIABLES - DARK THEME
 * ============================================================ */

body.dark-theme {
    --primary: #82B7DC;
    --primary-light: #A8D0FF;
    --primary-lighter: #3366A9;
    --accent: #A8D0FF;
    
    --bg-base: #0F1419;
    --bg-sidebar: #151C28;
    --bg-main: #0F1419;
    --bg-card: #1E2736;
    --bg-input: #1A2332;
    --bg-hover: #254474;
    --bg-primary-light: #1A3A5C;
    
    --border: #2E3A4E;
    --border-dark: #3A4A5E;
    --border-active: #82B7DC;
    
    --text: #F0F4FF;
    --text-secondary: #B8C5D6;
    --text-muted: #8A98AE;
    --text-light: #5A6A7E;
    --text-white: #FFFFFF;
    
    --user-bubble: linear-gradient(135deg, #3366A9 0%, #82B7DC 100%);
    --ai-bubble: #1E2736;
}

/* ============================================================
 * LAYOUT - DARK THEME
 * ============================================================ */

body.dark-theme .sidebar-header h1 {
    color: #F0F4FF;
}

body.dark-theme .nav-item {
    background: #1E2736;
    color: #B8C5D6;
}

body.dark-theme .nav-item:hover {
    background: var(--bg-hover);
    color: var(--primary);
}

body.dark-theme .nav-item.active {
    background: var(--bg-primary-light);
    color: var(--primary);
}

body.dark-theme .app-header {
    background: var(--bg-main);
}

body.dark-theme .header-logo {
    background: var(--bg-card);
    border: 1px solid var(--border);
}

body.dark-theme .logo-text {
    color: var(--text);
}

body.dark-theme .btn-settings {
    color: var(--primary);
}

body.dark-theme .btn-theme-option {
    background: transparent;
}

body.dark-theme .btn-theme-option:hover {
    background: var(--bg-hover);
}

body.dark-theme .btn-theme-option.active {
    background: var(--bg-primary-light);
}

/* ============================================================
 * COMPONENTS - BUTTONS - DARK THEME
 * ============================================================ */

body.dark-theme .btn-send,
body.dark-theme .btn-voice {
    background: #3366A9;
    box-shadow: 0 2px 8px rgba(51, 102, 169, 0.3);
}

body.dark-theme .btn-send:hover:not(:disabled),
body.dark-theme .btn-voice:hover:not(:disabled) {
    background: #4A7BC4;
    box-shadow: 0 4px 12px rgba(51, 102, 169, 0.4);
}

/* ============================================================
 * COMPONENTS - MODALS - DARK THEME
 * ============================================================ */

body.dark-theme .modal-header {
    background: var(--bg-card);
    border-bottom-color: var(--border);
}

body.dark-theme .modal-body {
    background: var(--bg-main);
}

body.dark-theme .spinner {
    border-color: rgba(130, 183, 220, 0.1);
    border-top-color: var(--primary);
}

body.dark-theme .modal p {
    color: var(--text-secondary);
}

body.dark-theme #upload-modal.modal-overlay {
    background: rgba(0, 0, 0, 0.7);
}

body.dark-theme #upload-modal .modal-content {
    background: var(--bg-card);
    border-color: var(--border);
}

body.dark-theme .upload-btn {
    background: var(--bg-card);
    border-color: var(--border);
    color: var(--text);
}

body.dark-theme .upload-btn:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
    color: var(--primary);
}

/* ============================================================
 * COMPONENTS - CARDS - DARK THEME
 * ============================================================ */

body.dark-theme .info-card {
    background: var(--bg-card);
    border-color: var(--border);
}

body.dark-theme .info-card:hover {
    border-color: rgba(130, 183, 220, 0.3);
    background: var(--bg-hover);
}

body.dark-theme .info-card h3 {
    color: #82B7DC;
    border-bottom-color: var(--border);
}

body.dark-theme .help-card {
    background: linear-gradient(135deg, #1e5a96 0%, #2a7ab8 100%);
    box-shadow: 0 4px 12px rgba(30, 90, 150, 0.3);
}

body.dark-theme .help-card:hover {
    box-shadow: 0 8px 20px rgba(30, 90, 150, 0.4);
}

body.dark-theme .help-title {
    color: #FFFFFF;
}

body.dark-theme .help-icon {
    color: #FFFFFF;
}

/* ============================================================
 * COMPONENTS - INPUTS - DARK THEME
 * ============================================================ */

body.dark-theme .message-input {
    background: var(--bg-input);
    border-color: var(--border);
    color: var(--text);
    border-radius: 16px;
}

body.dark-theme .message-input:focus {
    border-color: var(--primary);
}

body.dark-theme .message-input::placeholder {
    color: var(--text-muted);
}

body.dark-theme .message-input-container {
    background: var(--bg-input);
    border-color: var(--border);
}

body.dark-theme .message-input-container:focus-within {
    border-color: var(--primary);
}

body.dark-theme .hint-icon {
    background: var(--bg-card);
    border-color: var(--border);
    color: var(--text-secondary);
}

body.dark-theme .hint-icon:hover {
    background: var(--bg-hover);
    border-color: var(--border-dark);
}

body.dark-theme .auth-input {
    background: #1A2332;
    border-color: #82B7DC;
    color: #F0F4FF;
}

body.dark-theme .auth-input:focus {
    border-color: #82B7DC;
    background: #254474;
    box-shadow: 0 0 0 3px rgba(130, 183, 220, 0.15);
}

body.dark-theme .auth-input::placeholder {
    color: #8A98AE;
}

/* ============================================================
 * COMPONENTS - DROPDOWNS - DARK THEME
 * ============================================================ */

body.dark-theme .examples-dropdown,
body.dark-theme .tips-dropdown {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    animation: slideDown 0.3s ease;
    margin-top: 10px;
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 10;
    max-height: 300px;
}

body.dark-theme .example-item {
    padding: 16px 20px;
    background: #2A3A4E;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 400;
    text-align: left;
    font-family: 'Jost', sans-serif;
    transition: all 0.3s ease;
    min-height: 50px;
    display: flex;
    align-items: center;
    border: none;
}

body.dark-theme .example-item:hover {
    background: var(--bg-hover);
    color: var(--primary);
}

body.dark-theme .example-item:active {
    background: var(--bg-primary-light);
}

body.dark-theme .tip-item {
    padding: 16px 20px;
    background: #2A3A4E;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 400;
    text-align: left;
    font-family: 'Jost', sans-serif;
    transition: all 0.3s ease;
    min-height: 50px;
    flex-direction: column;
    justify-content: center;
    border: 2px solid var(--border);
}

body.dark-theme .tip-item:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
}

body.dark-theme .tip-item strong {
    color: var(--primary);
}

body.dark-theme .tip-item p {
    color: var(--text-secondary);
}

/* ============================================================
 * COMPONENTS - SETTINGS - DARK THEME
 * ============================================================ */

body.dark-theme .settings-btn-danger:hover {
    background: rgba(220, 53, 69, 0.2);
    border-color: #DC3545;
}

/* ============================================================
 * SECTIONS - AUTH - DARK THEME
 * ============================================================ */

body.dark-theme .auth-modal-new {
    background: linear-gradient(180deg, #0F1419 31%, #1A3A5C 74%, #114185 100%);
}

body.dark-theme .auth-modal-new-content {
    background: rgba(30, 39, 54, 0.98);
    border: 1px solid rgba(130, 183, 220, 0.2);
}

body.dark-theme .auth-title {
    color: #F0F4FF;
}

body.dark-theme .auth-subtitle {
    color: #B8C5D6;
}

body.dark-theme .auth-instruction {
    background: #1A3A5C;
    border-color: #114185;
    color: #B8C5D6;
}

body.dark-theme .instruction-title {
    color: #82B7DC;
}

body.dark-theme .instruction-list li {
    color: #B8C5D6;
}

body.dark-theme .instruction-link {
    color: #82B7DC;
}

body.dark-theme .instruction-link:hover {
    color: #A8D0FF;
}

body.dark-theme .auth-btn-primary {
    background: linear-gradient(135deg, #3366A9 0%, #82B7DC 100%);
    border-color: #82B7DC;
}

body.dark-theme .auth-btn-primary:hover:not(:disabled) {
    box-shadow: 0 8px 24px rgba(130, 183, 220, 0.3);
}

body.dark-theme .auth-btn-secondary {
    border-color: #82B7DC;
    color: #82B7DC;
}

body.dark-theme .auth-btn-secondary:hover {
    background: rgba(130, 183, 220, 0.1);
    border-color: #A8D0FF;
}

body.dark-theme .dot {
    background: #5A6A7E;
}

body.dark-theme .dot.filled {
    background: #82B7DC;
}

body.dark-theme #modal-auth-message.success {
    background: rgba(5, 150, 105, 0.15);
    color: #059669;
    border-color: rgba(5, 150, 105, 0.3);
}

body.dark-theme #modal-auth-message.error {
    background: rgba(220, 38, 38, 0.15);
    color: #DC2626;
    border-color: rgba(220, 38, 38, 0.3);
}

/* ============================================================
 * SECTIONS - CHAT - DARK THEME
 * ============================================================ */

body.dark-theme .message.user p {
    background: linear-gradient(135deg, #3366A9 0%, #82B7DC 100%);
    color: #FFFFFF;
}

body.dark-theme .message.assistant p {
    background: var(--bg-card);
    color: var(--text);
    border: 1px solid var(--border);
}

body.dark-theme .message.system p {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
}

body.dark-theme .message.loading p {
    background: var(--bg-card);
    border-color: var(--border);
}

/* ============================================================
 * SECTIONS - EXAMPLES - DARK THEME
 * ============================================================ */

body.dark-theme .example-btn {
    background: var(--bg-card);
    color: var(--text-secondary);
    border-color: var(--border);
}

body.dark-theme .example-btn:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
    color: var(--primary);
}

body.dark-theme .btn-all-features {
    background: transparent;
    border-color: #666666;
    color: #888888;
}

body.dark-theme .btn-all-features:hover {
    background: rgba(130, 183, 220, 0.1);
    border-color: #82B7DC;
    color: #82B7DC;
}

/* ============================================================
 * SECTIONS - TABLES - DARK THEME
 * ============================================================ */

body.dark-theme .table-scroll {
    border-color: var(--border);
}

body.dark-theme .data-table {
    color: var(--text);
}

body.dark-theme .data-table thead {
    background: rgba(130, 183, 220, 0.1);
}

body.dark-theme .data-table th {
    color: #82B7DC;
    border-bottom-color: var(--border);
}

body.dark-theme .data-table tbody tr {
    border-bottom: 1px solid var(--border);
    background: #1E2736;
}

body.dark-theme .data-table tbody tr:hover {
    background: var(--bg-hover);
}

body.dark-theme .data-table tbody tr:last-child {
    border-bottom: none;
}

body.dark-theme .data-table td {
    color: var(--text);
    border-bottom-color: var(--border);
}

/* ============================================================
 * SECTIONS - PROFILE - DARK THEME
 * ============================================================ */

body.dark-theme .profile-header h2 {
    color: #82B7DC;
}

body.dark-theme .info-label {
    color: var(--text-secondary);
}

body.dark-theme .info-value {
    color: var(--text);
}

body.dark-theme #profile-logout-btn {
    border-color: rgba(220, 38, 38, 0.3);
    color: #DC2626;
}

body.dark-theme #profile-logout-btn:hover {
    background: rgba(220, 38, 38, 0.1);
    border-color: rgba(220, 38, 38, 0.5);
}

/* ============================================================
 * SECTIONS - EMPTY PAGES - DARK THEME
 * ============================================================ */

body.dark-theme .empty-page-content h2 {
    color: #82B7DC;
}

body.dark-theme .empty-page-content p {
    color: var(--text-secondary);
}

/* ============================================================
 * COMPONENTS - CHAT SETTINGS MODAL - DARK THEME
 * ============================================================ */

body.dark-theme #chat-settings-modal.modal-overlay {
    background: rgba(0, 0, 0, 0.7);
}

body.dark-theme #chat-settings-modal .modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
}

body.dark-theme #chat-settings-modal .modal-header {
    background: var(--bg-card);
    border-bottom-color: var(--border);
}

body.dark-theme #chat-settings-modal .modal-header h3 {
    color: var(--text);
}

body.dark-theme #chat-settings-modal .modal-body {
    background: var(--bg-card);
}

body.dark-theme #chat-settings-modal .modal-close-btn {
    color: var(--text-secondary);
}

body.dark-theme #chat-settings-modal .modal-close-btn:hover {
    color: var(--text);
}

body.dark-theme #chat-settings-modal .settings-btn-danger {
    background: rgba(220, 53, 69, 0.1);
    border-color: rgba(220, 53, 69, 0.3);
    color: #DC3545;
}

body.dark-theme #chat-settings-modal .settings-btn-danger:hover {
    background: rgba(220, 53, 69, 0.2);
    border-color: #DC3545;
}

/* ============================================================
 * COMPONENTS - NEW CHAT MODAL - DARK THEME
 * ============================================================ */

body.dark-theme #new-chat-modal.modal-overlay {
    background: rgba(0, 0, 0, 0.7);
}

body.dark-theme #new-chat-modal .modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
}

body.dark-theme #new-chat-modal .modal-header {
    background: var(--bg-card);
    border-bottom-color: var(--border);
}

body.dark-theme #new-chat-modal .modal-header h3 {
    color: var(--text);
}

body.dark-theme #new-chat-modal .modal-body {
    background: var(--bg-card);
}

body.dark-theme #new-chat-modal .modal-close-btn {
    color: var(--text-secondary);
}

body.dark-theme #new-chat-modal .modal-close-btn:hover {
    color: var(--text);
}

body.dark-theme #new-chat-modal .modal-input {
    background: var(--bg-input);
    border-color: var(--border);
    color: var(--text);
}

body.dark-theme #new-chat-modal .modal-input:focus {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

body.dark-theme #new-chat-modal .modal-input::placeholder {
    color: var(--text-muted);
}

body.dark-theme #new-chat-modal .modal-checkbox {
    color: var(--text-secondary);
}

body.dark-theme #new-chat-modal .modal-btn-primary {
    background: linear-gradient(135deg, #3366A9 0%, #82B7DC 100%);
    color: var(--white);
}

body.dark-theme #new-chat-modal .modal-btn-primary:hover {
    box-shadow: 0 8px 24px rgba(51, 102, 169, 0.3);
}

body.dark-theme #new-chat-modal .modal-btn-secondary {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

body.dark-theme #new-chat-modal .modal-btn-secondary:hover {
    background: rgba(130, 183, 220, 0.1);
    color: var(--text);
}

/* ============================================================
 * COMPONENTS - ATTACHED FILES - DARK THEME
 * ============================================================ */

body.dark-theme .attached-files-container {
    background: var(--bg-main);
}

body.dark-theme .attached-file-item {
    background: var(--bg-card);
    border-color: var(--border);
    color: var(--text-secondary);
    animation: slideDown 0.3s ease;
}

body.dark-theme .attached-file-item:hover {
    background: var(--bg-hover);
    border-color: var(--border-dark);
}

body.dark-theme .file-icon {
    color: var(--text);
}

body.dark-theme .file-name {
    color: var(--text);
    font-weight: 500;
}

body.dark-theme .file-size {
    color: var(--text-muted);
}

body.dark-theme .file-remove-btn {
    color: var(--text-muted);
    transition: all 0.2s;
}

body.dark-theme .file-remove-btn:hover {
    background-color: rgba(220, 38, 38, 0.15);
    color: #DC2626;
}

body.dark-theme .file-remove-btn:active {
    transform: scale(0.9);
}

/* ============================================================
 * SECTIONS - REPORTS - DARK THEME
 * ============================================================ */

body.dark-theme .reports-title {
    color: #82B7DC;
}

body.dark-theme .reports-table-wrapper {
    background: var(--bg-card);
    border-color: var(--border);
}

body.dark-theme .reports-table thead {
    background: var(--bg-primary-light);
}

body.dark-theme .reports-table th {
    color: #82B7DC;
    border-bottom-color: var(--border);
}

body.dark-theme .reports-table tbody tr {
    border-bottom-color: var(--border);
}

body.dark-theme .reports-table tbody tr:hover {
    background-color: var(--bg-hover);
}

body.dark-theme .reports-table td {
    color: var(--text);
}

body.dark-theme .report-link {
    color: #82B7DC;
}

body.dark-theme .report-link:hover {
    color: #A8D0FF;
}

body.dark-theme .report-arrow {
    color: #82B7DC;
}

body.dark-theme .comment-dots {
    color: var(--text-muted);
}

body.dark-theme .reports-empty-text {
    color: var(--text-secondary);
}