/* ========================================
   Gemma AI Assistant Page Styles
   Premium 2024 FinTech Aesthetic
   ======================================== */

/* Chat Container */
.chat-container {
    max-width: 900px;
    margin: 0 auto;
    height: 600px;
    display: flex;
    flex-direction: column;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.chat-message {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 0.3s ease;
}

.chat-message.user {
    justify-content: flex-end;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.chat-avatar.ai {
    background: var(--gradient-primary);
}

.chat-avatar.user {
    background: var(--gradient-success);
}

.chat-bubble {
    max-width: 70%;
    padding: 1rem;
    border-radius: var(--radius-lg);
    line-height: 1.6;
}

.chat-bubble.ai {
    background: var(--glass);
    border: 1px solid var(--glass-border);
}

.chat-bubble.user {
    background: var(--primary);
    color: white;
}

.chat-input-container {
    border-top: 1px solid var(--glass-border);
    padding: 1.5rem;
}

/* Date range button styles */
.date-range-btn {
    transition: all 0.2s ease;
}

.date-range-btn.active {
    background: var(--primary) !important;
    color: white !important;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

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

/* Pulse animation for count */
@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }

    100% {
        transform: scale(1);
    }
}

/* Premium 2024 FinTech Filter Panel */
.gemma-filter-panel {
    background: #FFFFFF;
    border: 1px solid rgba(0, 82, 204, 0.08);
    border-radius: 1.25rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
    padding: 1.5rem 1.75rem;
}

.gemma-filter-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: space-between;
}

.gemma-filter-column {
    flex: 1 1 280px;
    min-width: 260px;
}

.chip-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.8rem;
    gap: 0.75rem;
}

.chip-panel-header h4 {
    margin: 0;
    font-size: 1rem;
}

.chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    align-items: center;
}

.chip-group-center {
    justify-content: center;
}

.chip-toggle {
    appearance: none;
    border: 1px solid rgba(0, 82, 204, 0.15);
    border-radius: 999px;
    padding: 0.35rem 0.95rem;
    font-size: 0.85rem;
    cursor: pointer;
    background: #FFFFFF;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    letter-spacing: 0.02em;
}

.chip-toggle:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.12);
    border-color: rgba(0, 82, 204, 0.3);
}

.chip-toggle[aria-pressed="true"] {
    background: linear-gradient(135deg, #0052CC, #00A3BF);
    border-color: transparent;
    color: #FFFFFF;
    box-shadow: 0 4px 16px rgba(0, 82, 204, 0.35);
}

.chip-toggle.chip-all {
    background: linear-gradient(135deg, #0052CC, #00A3BF);
    border: none;
    color: #FFFFFF;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.25);
}

.gemma-period-filter {
    text-align: center;
}

/* Stat Grid */
.gemma-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.gemma-stat-card {
    position: relative;
    padding: 1.25rem 1.35rem;
    border-radius: 1.1rem;
    background: #FFFFFF;
    border: 1px solid rgba(0, 82, 204, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    transition: all 0.2s ease;
}

.gemma-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 82, 204, 0.1);
}

.gemma-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--stat-accent, var(--primary));
    border-radius: 999px;
    opacity: 0.9;
}

.gemma-stat-card .stat-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(108, 99, 241, 0.15);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
    color: var(--stat-accent, var(--primary));
}

.gemma-stat-card .stat-value {
    font-size: 1.9rem;
    font-weight: 600;
    margin: 0;
}

.gemma-stat-card .stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.gemma-stat-card .stat-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
}

.gemma-stat-grid.loading .stat-value {
    opacity: 0.4;
    animation: pulse 1.4s ease infinite;
}

/* Confidence Control */
.gemma-confidence-control {
    margin-top: 1.5rem;
    padding: 1.25rem 1.5rem;
    border-radius: 1rem;
    border: 1px solid rgba(0, 82, 204, 0.1);
    background: rgba(0, 82, 204, 0.03);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.gemma-confidence-control .chip-panel-header {
    margin-bottom: 0.75rem;
    justify-content: space-between;
}

.gemma-confidence-control .chip-panel-header span {
    font-size: 1rem;
    font-weight: 600;
    color: #f8fafc;
}

.gemma-confidence-slider {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.gemma-confidence-slider input[type="range"] {
    flex: 1;
}

.gemma-confidence-hint {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

@media (max-width: 768px) {
    .gemma-filter-grid {
        flex-direction: column;
    }

    .chip-group-center {
        justify-content: flex-start;
    }
}

/* ========================================== */
/* Enterprise Dropdown Navigation            */
/* ========================================== */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.nav-dropdown-trigger {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 180px;
    background: #FFFFFF;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 0.75rem;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    padding: 0.5rem 0;
    z-index: 1000;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
    display: block;
    animation: fadeInUp 0.2s ease;
}

.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: all 0.15s ease;
}

.nav-dropdown-item:hover {
    background: rgba(99, 102, 241, 0.15);
    color: var(--text-primary);
}

/* ========================================== */
/* Tabbed Interface                          */
/* ========================================== */
.gemma-tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.gemma-tab {
    padding: 0.875rem 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    position: relative;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.gemma-tab:hover {
    color: var(--text-primary);
}

.gemma-tab.active {
    color: var(--primary);
}

.gemma-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px 2px 0 0;
}

.gemma-tab-content {
    display: none !important;
}

.gemma-tab-content.active {
    display: block !important;
}

/* ========================================== */
/* Chat Tab Styles                           */
/* ========================================== */
.chat-interface {
    max-width: 900px;
    margin: 0 auto;
    min-height: 500px;
    display: flex;
    flex-direction: column;
}

.active-db-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(59, 130, 246, 0.15));
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: 8px;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.active-db-indicator .db-name {
    font-weight: 500;
    color: var(--text-primary);
}

.active-db-indicator .db-badge {
    margin-left: auto;
    padding: 0.2rem 0.5rem;
    background: rgba(139, 92, 246, 0.2);
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
}

.btn-clear-db {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0 0.25rem;
    font-size: 1.2rem;
    line-height: 1;
    transition: color 0.2s;
}

.btn-clear-db:hover {
    color: var(--danger);
}

/* Thinking Animation */
.thinking-dots {
    display: flex;
    gap: 4px;
    padding: 0.5rem 0;
}

.thinking-dots span {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: thinking 1.4s ease-in-out infinite;
}

.thinking-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.thinking-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes thinking {

    0%,
    80%,
    100% {
        opacity: 0.3;
        transform: scale(0.8);
    }

    40% {
        opacity: 1;
        transform: scale(1);
    }
}

.chat-messages-area {
    flex: 1;
    min-height: 400px;
    max-height: 500px;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: rgba(10, 15, 28, 0.5);
    border-radius: 1rem;
    border: 1px solid rgba(148, 163, 184, 0.15);
}

.chat-message-row {
    display: flex;
    gap: 1rem;
}

.chat-message-row.user {
    justify-content: flex-end;
}

.chat-avatar-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.chat-avatar-icon.ai-avatar {
    background: var(--gradient-primary);
}

.chat-avatar-icon.user-avatar {
    background: var(--gradient-success);
}

.chat-bubble-content {
    max-width: 70%;
    padding: 1rem;
    border-radius: 1rem;
    line-height: 1.6;
}

.chat-bubble-content.ai-bubble {
    background: var(--glass);
    border: 1px solid var(--glass-border);
}

.chat-bubble-content.user-bubble {
    background: var(--primary);
    color: white;
}

.chat-input-row {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.chat-input-row input {
    flex: 1;
    background: rgba(15, 20, 35, 0.8) !important;
    border: 1px solid rgba(139, 92, 246, 0.3) !important;
    border-radius: 12px !important;
    padding: 0.9rem 1.2rem !important;
    color: #e2e8f0 !important;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
    font-size: 0.95rem !important;
    transition: all 0.2s ease !important;
}

.chat-input-row input::placeholder {
    color: rgba(148, 163, 184, 0.6) !important;
    font-style: italic;
}

.chat-input-row input:focus {
    outline: none !important;
    border-color: rgba(139, 92, 246, 0.6) !important;
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15),
        0 4px 12px rgba(0, 0, 0, 0.3) !important;
    background: rgba(20, 25, 45, 0.9) !important;
}

/* ========================================== */
/* Database Tab Styles                       */
/* ========================================== */
.db-upload-zone {
    border: 2px dashed rgba(148, 163, 184, 0.3);
    border-radius: 1rem;
    padding: 3rem;
    text-align: center;
    transition: all 0.3s ease;
    background: rgba(10, 15, 28, 0.3);
    cursor: pointer;
}

.db-upload-zone:hover,
.db-upload-zone.dragover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.db-upload-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    color: var(--primary);
    opacity: 0.7;
}

.db-file-list {
    margin-top: 1.5rem;
}

.db-file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 0.75rem;
    margin-bottom: 0.5rem;
}

.db-file-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.db-file-status {
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
}

.db-file-status.pending {
    background: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
}

.db-file-status.processing {
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary);
}

.db-file-status.complete {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
}

/* Saved Databases List */
.saved-db-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.saved-db-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 0.5rem;
    transition: all 0.2s ease;
}

.saved-db-item:hover {
    background: rgba(15, 23, 42, 0.8);
    border-color: rgba(139, 92, 246, 0.3);
}

.saved-db-item.active {
    background: rgba(139, 92, 246, 0.15);
    border-color: var(--primary);
}

.saved-db-item .db-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.saved-db-item .db-name {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.saved-db-item .db-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.saved-db-item .db-actions {
    display: flex;
    gap: 0.5rem;
}

.saved-db-item .btn-use {
    padding: 0.35rem 0.75rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.saved-db-item .btn-use:hover {
    background: var(--primary-dark);
}

.saved-db-item .btn-embed {
    padding: 0.35rem 0.75rem;
    background: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.saved-db-item .btn-embed:hover {
    background: rgba(251, 191, 36, 0.3);
}

.saved-db-item.active .btn-use {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
    pointer-events: none;
}

/* ========================================== */
/* Transcripts Tab Styles                    */
/* ========================================== */
.transcript-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.transcript-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    background: #FFFFFF;
    border: 1px solid rgba(0, 82, 204, 0.08);
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.transcript-item:hover {
    border-color: rgba(0, 82, 204, 0.25);
    box-shadow: 0 4px 16px rgba(0, 82, 204, 0.08);
    transform: translateY(-1px);
}

.transcript-item .transcript-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

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

.transcript-item .transcript-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.transcript-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.transcript-nav-btn {
    padding: 0.5rem 1rem;
    background: #FFFFFF;
    border: 1px solid rgba(0, 82, 204, 0.15);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.85rem;
}

.transcript-nav-btn:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.transcript-nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.transcript-viewer {
    background: #FFFFFF;
    border: 1px solid rgba(0, 82, 204, 0.08);
    border-radius: 1rem;
    padding: 1.5rem;
}

.transcript-segment {
    padding: 0.75rem 1rem;
    border-left: 3px solid transparent;
    margin-bottom: 0.5rem;
    border-radius: 0 0.5rem 0.5rem 0;
    transition: all 0.2s ease;
}

.transcript-segment:hover {
    background: rgba(0, 82, 204, 0.03);
}

.transcript-segment.highlight {
    border-left-color: var(--primary);
    background: rgba(0, 82, 204, 0.08);
}

/* ========================================== */
/* Search Tab Styles                         */
/* ========================================== */
.search-container {
    max-width: 700px;
    margin: 0 auto;
}

.search-input-wrapper {
    position: relative;
    margin-bottom: 1.5rem;
}

.search-input-wrapper input {
    width: 100%;
    padding: 1rem 1.25rem 1rem 3rem;
    background: #FFFFFF;
    border: 1px solid rgba(0, 82, 204, 0.15);
    border-radius: 0.75rem;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.search-input-wrapper input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
}

.search-input-wrapper .search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.search-results {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.search-result-item {
    background: #FFFFFF;
    border: 1px solid rgba(0, 82, 204, 0.08);
    border-radius: 0.75rem;
    padding: 1rem 1.25rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.search-result-item:hover {
    border-color: rgba(0, 82, 204, 0.25);
    box-shadow: 0 4px 16px rgba(0, 82, 204, 0.08);
}

.search-result-item .result-title {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.search-result-item .result-snippet {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.search-result-item .result-snippet mark {
    background: rgba(251, 191, 36, 0.3);
    padding: 0.1rem 0.2rem;
    border-radius: 2px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================== */
/* Excel-Like Grid View Styles               */
/* Microsoft Excel Blue Theme                */
/* ========================================== */

/* Color Variables */
:root {
    --excel-header-bg: #1f4e79;
    --excel-header-text: #ffffff;
    --excel-row-even: #f3f9ff;
    --excel-row-odd: #ffffff;
    --excel-row-hover: #d6e9f8;
    --excel-row-selected: #b4d6e8;
    --excel-border: #c5d9e8;
    --excel-accent: #217346;
    --excel-toolbar-bg: #f0f6fc;
}

/* View Mode Toggle Buttons */
.view-mode-btn {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.5rem 0.9rem;
    background: transparent;
    border: none;
    border-radius: 0.35rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.view-mode-btn:hover {
    background: rgba(0, 82, 204, 0.08);
    color: var(--primary);
}

.view-mode-btn.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 8px rgba(0, 82, 204, 0.3);
}

/* Excel Grid Container */
.excel-grid {
    border: 1px solid var(--excel-border);
    border-radius: 0.5rem;
    overflow: hidden;
    background: #fff;
}

/* Excel Toolbar */
.excel-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--excel-toolbar-bg);
    border-bottom: 1px solid var(--excel-border);
    gap: 1rem;
    flex-wrap: wrap;
}

.excel-search-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    max-width: 400px;
    min-width: 200px;
}

.excel-search {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--excel-border);
    border-radius: 4px;
    font-size: 0.85rem;
    background: #fff;
    transition: all 0.2s;
}

.excel-search:focus {
    outline: none;
    border-color: var(--excel-header-bg);
    box-shadow: 0 0 0 2px rgba(31, 78, 121, 0.15);
}

.excel-toolbar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.excel-row-count {
    font-size: 0.8rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.excel-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    background: var(--excel-accent);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.excel-btn:hover {
    background: #1a5c38;
    box-shadow: 0 2px 8px rgba(33, 115, 70, 0.3);
}

/* Excel Table Wrapper */
.excel-table-wrapper {
    overflow-x: auto;
    max-height: 500px;
    overflow-y: auto;
}

/* Excel Table */
.excel-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

/* Excel Header */
.excel-header {
    position: sticky;
    top: 0;
    z-index: 10;
}

.excel-th {
    background: var(--excel-header-bg);
    color: var(--excel-header-text);
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.85rem;
    white-space: nowrap;
    border-right: 1px solid rgba(255, 255, 255, 0.15);
    user-select: none;
}

.excel-th:last-child {
    border-right: none;
}

.excel-th.sortable {
    cursor: pointer;
    transition: background 0.15s;
}

.excel-th.sortable:hover {
    background: #2a5f8e;
}

.excel-th .sort-icon {
    margin-left: 0.5rem;
    opacity: 0.6;
    font-size: 0.75rem;
}

.excel-th.sorted-asc .sort-icon,
.excel-th.sorted-desc .sort-icon {
    opacity: 1;
}

.excel-th.sorted-asc .sort-icon::after {
    content: '↑';
}

.excel-th.sorted-desc .sort-icon::after {
    content: '↓';
}

/* Excel Body Rows */
.excel-tr {
    transition: background 0.15s;
}

.excel-tr:nth-child(even) {
    background: var(--excel-row-even);
}

.excel-tr:nth-child(odd) {
    background: var(--excel-row-odd);
}

.excel-tr:hover {
    background: var(--excel-row-hover);
}

.excel-tr.selected {
    background: var(--excel-row-selected);
}

.excel-tr:focus {
    outline: 2px solid var(--excel-header-bg);
    outline-offset: -2px;
}

/* Excel Cells */
.excel-td {
    padding: 0.65rem 1rem;
    border-bottom: 1px solid var(--excel-border);
    border-right: 1px solid #e8f0f8;
    vertical-align: middle;
}

.excel-td:last-child {
    border-right: none;
}

/* Cell Content Styles */
.excel-td .cell-date {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.8rem;
    color: #555;
}

.excel-td .cell-speaker {
    font-weight: 500;
    color: var(--primary);
}

.excel-td .cell-duration {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.85rem;
    background: #f0f4f8;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
}

.excel-td .cell-preview {
    color: var(--text-secondary);
    font-size: 0.85rem;
    max-width: 350px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Emotion Badge in Excel */
.excel-emotion-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.6rem;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: 500;
}

.excel-emotion-badge.joy {
    background: #d1fae5;
    color: #047857;
}

.excel-emotion-badge.anger {
    background: #fee2e2;
    color: #b91c1c;
}

.excel-emotion-badge.sadness {
    background: #dbeafe;
    color: #1d4ed8;
}

.excel-emotion-badge.fear {
    background: #ede9fe;
    color: #6d28d9;
}

.excel-emotion-badge.surprise {
    background: #fef3c7;
    color: #b45309;
}

.excel-emotion-badge.neutral {
    background: #f3f4f6;
    color: #4b5563;
}

.excel-emotion-badge.disgust {
    background: #fce7f3;
    color: #9d174d;
}

/* Action Buttons in Excel */
.excel-action-btn {
    padding: 0.35rem 0.6rem;
    background: rgba(0, 82, 204, 0.08);
    border: 1px solid rgba(0, 82, 204, 0.2);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--primary);
    cursor: pointer;
    transition: all 0.15s;
}

.excel-action-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Empty State */
.excel-empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.excel-empty-state i {
    display: block;
    margin: 0 auto 1rem;
    opacity: 0.5;
}

/* Responsive */
@media (max-width: 768px) {
    .excel-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .excel-search-wrapper {
        max-width: 100%;
    }

    .excel-toolbar-actions {
        justify-content: space-between;
    }

    .excel-th,
    .excel-td {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }

    .view-mode-btn {
        padding: 0.4rem 0.7rem;
        font-size: 0.8rem;
    }
}

/* ========================================== */
/* Database Viewer Styles                     */
/* Pagination, PII cells, cell formatting     */
/* ========================================== */

/* Database Viewer Container */
.database-excel-viewer {
    animation: fadeInUp 0.3s ease;
}

/* Pagination Controls */
.db-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: var(--excel-toolbar-bg);
    border-radius: 0.5rem;
    border: 1px solid var(--excel-border);
}

.db-pagination-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.db-pagination-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.db-pagination-page {
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0 0.75rem;
}

.db-pagination-size {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.db-pagination-size select {
    padding: 0.35rem 0.5rem;
    border-radius: 4px;
    border: 1px solid var(--excel-border);
    background: #fff;
    font-size: 0.85rem;
    cursor: pointer;
}

/* Cell Formatting */
.cell-null {
    color: var(--text-muted);
    font-style: italic;
}

.cell-pii {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.8rem;
}

.cell-currency {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 500;
    color: var(--excel-accent);
}

.cell-number {
    font-family: 'IBM Plex Mono', monospace;
    color: #1e3a5f;
}

.cell-bool {
    font-weight: 600;
}

.cell-bool-true {
    color: var(--success, #10b981);
}

.cell-bool-false {
    color: var(--danger, #ef4444);
}

.cell-preview {
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: help;
}

/* PII Column Styles */
.pii-cell {
    background: rgba(251, 191, 36, 0.05);
}

.excel-th i[data-lucide="shield"] {
    color: #f59e0b;
}

/* Responsive Database Pagination */
@media (max-width: 768px) {
    .db-pagination {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .db-pagination-controls {
        justify-content: center;
    }

    .db-pagination-info,
    .db-pagination-size {
        text-align: center;
        justify-content: center;
    }
}