/* ============================================================
   DL Experiment Tracker - Enhanced Styles v2.0
   ============================================================ */

/* ==================== CSS Variables ==================== */
:root {
    --primary: #4f46e5;
    --primary-light: #818cf8;
    --primary-dark: #3730a3;
    --primary-bg: #eef2ff;
    --success: #10b981;
    --success-light: #d1fae5;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --info: #3b82f6;
    --info-light: #dbeafe;

    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --transition: all 0.2s ease;

    /* Light theme (default) */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-body: #f3f4f6;
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-muted: var(--gray-400);
    --border-color: var(--gray-200);
    --header-bg: #ffffff;
    --header-border: var(--gray-200);
    --card-bg: #ffffff;
    --card-hover-shadow: var(--shadow-lg);
    --input-bg: #ffffff;
    --metric-icon-bg: var(--primary-bg);
}

[data-theme="dark"] {
    --primary: #818cf8;
    --primary-light: #a5b4fc;
    --primary-dark: #6366f1;
    --primary-bg: #1e1b4b;
    --success: #34d399;
    --success-light: #064e3b;
    --danger: #f87171;
    --danger-light: #7f1d1d;
    --warning: #fbbf24;
    --warning-light: #78350f;
    --info: #60a5fa;
    --info-light: #1e3a5f;

    --gray-50: #111827;
    --gray-100: #1f2937;
    --gray-200: #374151;
    --gray-300: #4b5563;
    --gray-400: #6b7280;
    --gray-500: #9ca3af;
    --gray-600: #d1d5db;
    --gray-700: #e5e7eb;
    --gray-800: #f3f4f6;
    --gray-900: #f9fafb;

    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-body: #0f172a;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #334155;
    --header-bg: #1e293b;
    --header-border: #334155;
    --card-bg: #1e293b;
    --card-hover-shadow: 0 10px 15px -3px rgba(0,0,0,0.4);
    --input-bg: #334155;
    --metric-icon-bg: #1e1b4b;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ==================== Header ==================== */
.header {
    background: var(--header-bg);
    border-bottom: 1px solid var(--header-border);
    padding: 0 24px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(8px);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    min-width: 0;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.logo {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition);
    letter-spacing: -0.3px;
}

.logo:hover {
    color: var(--primary-dark);
    transform: scale(1.02);
}

.header-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

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

.header-divider {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    margin: 0 4px;
}

/* ==================== Breadcrumb ==================== */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--primary);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.breadcrumb a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.breadcrumb .separator {
    color: var(--gray-300);
}

.breadcrumb .current {
    color: var(--text-secondary);
    font-weight: 500;
}

/* ==================== Main Content ==================== */
.main-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px;
}

/* ==================== Page Header ==================== */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-header h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.page-header .subtitle {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 4px;
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.5;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 1px 2px rgba(79, 70, 229, 0.2);
}

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-color);
}

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

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

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: none;
}

.btn-ghost:hover {
    color: var(--text-primary);
    background: var(--gray-100);
}

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

.btn-icon {
    padding: 6px;
    min-width: 28px;
    min-height: 28px;
}

.btn-group {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* ==================== Stats Bar (Home Page) ==================== */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.stat-icon.models { background: var(--primary-bg); }
.stat-icon.experiments { background: var(--info-light); }
.stat-icon.best-acc { background: var(--success-light); }
.stat-icon.tags { background: var(--warning-light); }

.stat-info {
    min-width: 0;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ==================== Cards Grid ==================== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 16px;
}

/* ==================== Model Card ==================== */
.model-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.model-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    opacity: 0;
    transition: var(--transition);
}

.model-card:hover {
    box-shadow: var(--card-hover-shadow);
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

.model-card:hover::before {
    opacity: 1;
}

.model-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.model-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.model-card-actions {
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: var(--transition);
}

.model-card:hover .model-card-actions {
    opacity: 1;
}

.model-stats {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
}

.model-stat {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.model-stat .count {
    font-weight: 600;
    color: var(--primary);
}

.model-card-date {
    font-size: 12px;
    color: var(--text-muted);
}

/* ==================== Experiment Card ==================== */
.experiment-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.experiment-card:hover {
    box-shadow: var(--card-hover-shadow);
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

.experiment-card.batch-selected {
    border-color: var(--primary);
    background: var(--primary-bg);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
}

.experiment-card .checkbox-wrapper {
    position: absolute;
    top: 12px;
    left: 12px;
    display: none;
}

body.batch-mode .experiment-card .checkbox-wrapper {
    display: block;
}

.exp-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.exp-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    word-break: break-all;
}

.exp-date {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
}

/* ==================== Metrics ==================== */
.metrics {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
}

.metric {
    flex: 1;
}

.metric-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.metric-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.metric-value.high { color: var(--success); }
.metric-value.mid { color: var(--warning); }
.metric-value.low { color: var(--danger); }

/* ==================== Tags ==================== */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 10px;
    font-size: 11px;
    font-weight: 500;
    border-radius: 100px;
    background: var(--gray-100);
    color: var(--gray-600);
    transition: var(--transition);
}

.tag-baseline { background: var(--info-light); color: var(--info); }
.tag-ablation { background: var(--warning-light); color: var(--warning); }
.tag-sota { background: var(--success-light); color: var(--success); }
.tag-best { background: #fce7f3; color: #db2777; }
.tag-test { background: #e0e7ff; color: #4338ca; }

.tag-remove {
    cursor: pointer;
    opacity: 0.6;
    font-size: 10px;
    transition: var(--transition);
    margin-left: 2px;
}

.tag-remove:hover { opacity: 1; }

/* Hyper params pills on card */
.hyper-params {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.param-pill {
    font-size: 12px;
    padding: 3px 10px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.6;
}

/* ==================== Metrics Grid ==================== */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.metric-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-align: center;
    transition: var(--transition);
}

.metric-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.metric-icon {
    font-size: 24px;
    margin-bottom: 8px;
}

.metric-title {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metric-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

/* ==================== Sections ==================== */
.section-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ==================== Tables ==================== */
.table-container {
    overflow: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table th,
.data-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--gray-100);
    white-space: nowrap;
}

.data-table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: sticky;
    top: 0;
    z-index: 1;
}

.data-table th.sortable {
    cursor: pointer;
    user-select: none;
    transition: var(--transition);
}

.data-table th.sortable:hover {
    color: var(--primary);
    background: var(--primary-bg);
}

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

/* ==================== Chart Container ==================== */
.chart-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.chart-container h4 {
    font-size: 14px;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

/* ==================== Confusion Matrix ==================== */
.confusion-matrix {
    overflow: auto;
}

.confusion-matrix table {
    border-collapse: collapse;
    font-size: 13px;
}

.confusion-matrix td,
.confusion-matrix th {
    padding: 10px 16px;
    text-align: center;
    border: 1px solid var(--gray-200);
    min-width: 60px;
}

.confusion-matrix .diagonal {
    background: var(--success-light);
    font-weight: 600;
}

.confusion-matrix .misclassify {
    background: var(--danger-light);
    color: var(--danger);
    cursor: pointer;
    transition: var(--transition);
}

.confusion-matrix .misclassify:hover {
    opacity: 0.8;
    transform: scale(1.05);
}

.confusion-matrix .header-cell {
    background: var(--gray-50);
    font-weight: 600;
}

/* ==================== Error Samples ==================== */
.error-samples {
    max-height: 400px;
    overflow-y: auto;
}

/* ==================== Modal ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

.modal {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 90vw;
    max-height: 90vh;
    overflow: auto;
    animation: slideIn 0.2s ease;
}

.modal-sm { width: 400px; }
.modal-md { width: 600px; }
.modal-lg { width: 800px; }
.modal-xl { width: 1000px; }

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
}

/* ==================== Form ==================== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 14px;
    background: var(--input-bg);
    color: var(--text-primary);
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* ==================== Upload Area ==================== */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-secondary);
}

.upload-area:hover {
    border-color: var(--primary);
    background: var(--primary-bg);
}

.upload-area.dragover {
    border-color: var(--primary);
    background: var(--primary-bg);
    transform: scale(1.01);
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.upload-text {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.upload-hint {
    font-size: 13px;
    color: var(--text-muted);
}

/* ==================== Tabs ==================== */
.tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 24px;
}

.tab {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    user-select: none;
}

.tab:hover {
    color: var(--text-primary);
    background: var(--gray-50);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    font-weight: 600;
}

/* ==================== Animations ==================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* ==================== Toast ==================== */
.toast-container {
    position: fixed;
    top: 72px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: var(--gray-800);
    color: white;
    padding: 12px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 360px;
}

.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); color: var(--gray-900); }

/* ==================== Batch Bar ==================== */
.batch-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--gray-800);
    color: white;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 100;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.15);
    animation: slideIn 0.2s ease;
}

.batch-bar .selected-count {
    font-size: 14px;
}

.batch-bar .batch-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* ==================== Empty State ==================== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.empty-state h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 14px;
    margin-bottom: 24px;
    line-height: 1.6;
}

/* ==================== Detail Layout ==================== */
.detail-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

/* ==================== Info Card ==================== */
.info-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.info-card h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ==================== Params Table ==================== */
.params-table {
    width: 100%;
}

.params-table input {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 13px;
    background: var(--input-bg);
    color: var(--text-primary);
    transition: var(--transition);
}

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

.params-table .check-col {
    width: 30px;
    text-align: center;
}

.params-table .action-col {
    width: 40px;
    text-align: center;
}

/* ==================== Sort Controls ==================== */
.sort-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sort-controls select {
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
    background: var(--input-bg);
    color: var(--text-primary);
    transition: var(--transition);
}

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

/* ==================== Tag Filter ==================== */
.tag-filter {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.tag-filter .tag {
    cursor: pointer;
    transition: var(--transition);
}

.tag-filter .tag:hover {
    opacity: 0.8;
    transform: scale(1.05);
}

.tag-filter .tag.active {
    background: var(--primary);
    color: white;
}

/* ==================== Search Box ==================== */
.search-box {
    position: relative;
}

.search-box input {
    padding: 8px 12px 8px 32px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
    width: 200px;
    background: var(--input-bg);
    color: var(--text-primary);
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.search-box::before {
    content: '🔍';
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12px;
}

/* ==================== Toolbar ==================== */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ==================== Checkbox ==================== */
.checkbox {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary);
}

/* ==================== Parse Preview ==================== */
.parse-preview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    max-height: 60vh;
    overflow-y: auto;
}

.parse-preview .preview-section {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
}

.parse-preview .preview-header {
    background: var(--gray-50);
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.parse-preview .preview-body {
    padding: 12px;
    max-height: 300px;
    overflow: auto;
    font-size: 12px;
    font-family: 'SF Mono', 'Fira Code', monospace;
    color: var(--text-primary);
}

.parse-preview .preview-body pre {
    white-space: pre-wrap;
    word-break: break-all;
}

.parse-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 14px;
}

.parse-status.success {
    background: var(--success-light);
    color: #065f46;
}

[data-theme="dark"] .parse-status.success {
    color: var(--success);
}

.parse-status.warning {
    background: var(--warning-light);
    color: #92400e;
}

[data-theme="dark"] .parse-status.warning {
    color: var(--warning);
}

.parse-status.error {
    background: var(--danger-light);
    color: #991b1b;
}

[data-theme="dark"] .parse-status.error {
    color: var(--danger);
}

/* ==================== Section Divider ==================== */
.section-divider {
    margin: 24px 0;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

/* ==================== Storage Warning ==================== */
.storage-warning {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: var(--warning-light);
    border: 1px solid var(--warning);
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 13px;
    color: #92400e;
}

[data-theme="dark"] .storage-warning {
    color: var(--warning);
}

/* ==================== Keyboard Hint ==================== */
.kbd {
    display: inline-block;
    padding: 2px 6px;
    font-size: 11px;
    font-family: 'SF Mono', 'Fira Code', monospace;
    background: var(--gray-100);
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* ==================== Experiment Compare Table ==================== */
.compare-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.compare-table th,
.compare-table td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.compare-table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 12px;
    position: sticky;
    top: 0;
    z-index: 1;
}

.compare-table td.best {
    background: var(--success-light);
    font-weight: 600;
}

.compare-table td.worst {
    background: var(--danger-light);
    opacity: 0.7;
}

.compare-table .exp-name-col {
    font-weight: 600;
    color: var(--text-primary);
}

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
    }
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header {
        padding: 0 12px;
    }

    .main-content {
        padding: 16px;
    }

    .detail-grid {
        grid-template-columns: 1fr;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .stats-bar {
        grid-template-columns: 1fr 1fr;
    }

    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .header-right .header-btn span {
        display: none;
    }

    .parse-preview {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .stats-bar {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 16px;
    }
}

/* ==================== Scrollbar ==================== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* ==================== Selection ==================== */
::selection {
    background: rgba(79, 70, 229, 0.2);
    color: inherit;
}