:root {
    --primary: #0071e3;
    --primary-hover: #0077ed;
    --primary-dark: #0051a2;
    --danger: #ff3b30;
    --danger-hover: #d32f2f;

    --bg: #f5f5f7;
    --bg-secondary: #ffffff;
    --surface: rgba(255, 255, 255, 0.72);
    --surface-solid: #ffffff;
    --surface-elevated: rgba(255, 255, 255, 0.9);

    --text: #1d1d1f;
    --text-secondary: #86868b;
    --muted: #6e6e73;
    --border: rgba(0, 0, 0, 0.08);
    --separator: rgba(0, 0, 0, 0.06);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.02);
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.06), 0 2px 6px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);

    --radius-sm: 0.5rem;
    --radius: 1rem;
    --radius-lg: 1.25rem;

    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-apple: cubic-bezier(0.32, 0.72, 0, 1);
    --transition-fast: 150ms ease;
    --transition-base: 250ms var(--ease-apple);
    --transition-spring: 400ms var(--ease-spring);
}

@media (prefers-color-scheme: dark) {
    :root {
        --primary: #0a84ff;
        --primary-hover: #409cff;
        --primary-dark: #0066cc;
        --danger: #ff453a;
        --danger-hover: #ff5f52;

        --bg: #000000;
        --bg-secondary: #1c1c1e;
        --surface: rgba(28, 28, 30, 0.72);
        --surface-solid: #1c1c1e;
        --surface-elevated: rgba(44, 44, 46, 0.9);

        --text: #f5f5f7;
        --text-secondary: #a1a1a6;
        --muted: #8e8e93;
        --border: rgba(255, 255, 255, 0.12);
        --separator: rgba(255, 255, 255, 0.08);

        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.2);
        --shadow: 0 4px 16px rgba(0, 0, 0, 0.4), 0 2px 6px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5), 0 4px 12px rgba(0, 0, 0, 0.4);
    }
}

* { box-sizing: border-box; }

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

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    letter-spacing: -0.01em;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* Navbar with glass material */
.navbar {
    background: var(--surface);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.brand {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    color: var(--text);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}
.brand:hover { opacity: 0.7; }
.brand:active { opacity: 0.5; }

.nav-links {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    position: relative;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.nav-links a:hover {
    color: var(--text);
    background: rgba(0, 0, 0, 0.04);
}

.nav-links a:active {
    transform: scale(0.96);
}

.nav-links a.active {
    color: var(--text);
    background: rgba(0, 0, 0, 0.06);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-email {
    font-size: 0.85rem;
    color: var(--text-secondary);
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem;
    background: rgba(0, 0, 0, 0.04);
    border-radius: 999px;
}

.lang-switch a,
.lang-switch span {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.3rem 0.6rem;
    border-radius: 999px;
    transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.lang-switch a:hover {
    color: var(--text);
    background: rgba(0, 0, 0, 0.04);
}

.lang-switch a.active {
    color: var(--text);
    background: var(--surface-solid);
    box-shadow: var(--shadow-sm);
}

.lang-switch a:active {
    transform: scale(0.94);
}

/* Typography */
h1 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

h2 {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 0 0 0.75rem;
}

p { margin: 0 0 1rem; }

.text-muted { color: var(--muted); }
.text-small { font-size: 0.85rem; }

/* Panels */
.panel {
    background: var(--surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin: 1rem 0;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.panel > h2:first-child {
    margin-top: 0;
}

/* Core metrics */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.core-metrics {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.stat-card {
    position: relative;
    background: var(--surface-elevated);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform var(--transition-spring), box-shadow var(--transition-base);
    cursor: default;
}

.stat-card::before {
    content: "";
    position: absolute;
    inset: 0;
    opacity: 0.04;
    background: linear-gradient(135deg, var(--primary), transparent);
    pointer-events: none;
}

.stat-card:hover {
    transform: translateY(-4px) scale(1.01);
    box-shadow: var(--shadow-lg);
}

.stat-card:active {
    transform: scale(0.99);
}

.stat-value {
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1;
    color: var(--text);
    margin-bottom: 0.35rem;
    animation: valueIn 600ms var(--ease-apple) both;
}

.stat-label {
    color: var(--muted);
    font-size: 0.85rem;
    font-weight: 500;
}

.stat-sub {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-top: 0.35rem;
    font-weight: 500;
}

@keyframes valueIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Rows */
.row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.list { list-style: none; padding: 0; margin: 0; }
.list li { padding: 0.5rem 0; border-bottom: 1px solid var(--separator); }

/* Table */
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.9rem;
}

.table th, .table td {
    text-align: left;
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--separator);
    vertical-align: top;
}

.table th {
    color: var(--muted);
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    background: rgba(0, 0, 0, 0.02);
}

.table tbody tr {
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.table tbody tr:hover {
    background: rgba(0, 0, 0, 0.02);
}

.table tbody tr.clickable {
    cursor: pointer;
}

.table tbody tr.clickable:hover {
    background: rgba(0, 0, 0, 0.035);
}

.table tbody tr.clickable:active {
    transform: scale(0.998);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    border: 1px solid transparent;
}

.badge-positive { background: rgba(52, 199, 89, 0.12); color: #1d7a35; border-color: rgba(52, 199, 89, 0.2); }
.badge-negative { background: rgba(255, 59, 48, 0.12); color: #a8231b; border-color: rgba(255, 59, 48, 0.2); }
.badge-neutral { background: rgba(142, 142, 147, 0.14); color: #555558; border-color: rgba(142, 142, 147, 0.25); }
.badge-critical { background: rgba(255, 59, 48, 0.14); color: #a8231b; border-color: rgba(255, 59, 48, 0.25); }
.badge-high { background: rgba(255, 149, 0, 0.14); color: #9a5a00; border-color: rgba(255, 149, 0, 0.25); }
.badge-medium { background: rgba(255, 204, 0, 0.16); color: #8a6a00; border-color: rgba(255, 204, 0, 0.3); }
.badge-low { background: rgba(0, 122, 255, 0.12); color: #004494; border-color: rgba(0, 122, 255, 0.2); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 1.1rem;
    border: none;
    border-radius: var(--radius-sm);
    background: var(--primary);
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
    transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn:hover {
    background: var(--primary-hover);
    box-shadow: 0 2px 6px rgba(0, 113, 227, 0.25);
}

.btn:active {
    transform: scale(0.97);
    background: var(--primary-dark);
}

.btn-small { padding: 0.35rem 0.75rem; font-size: 0.8rem; }

.btn-danger { background: var(--danger); }
.btn-danger:hover { background: var(--danger-hover); box-shadow: 0 2px 6px rgba(255, 59, 48, 0.25); }
.btn-danger:active { background: #b71c1c; }

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.form-grid label { display: flex; flex-direction: column; gap: 0.35rem; font-weight: 500; font-size: 0.85rem; }
.form-grid input, .form-grid select, .form-grid textarea {
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    background: var(--surface-solid);
    color: var(--text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.form-grid input:focus, .form-grid select:focus, .form-grid textarea:focus,
.form-inline input:focus, .form-inline select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
}

.span-2 { grid-column: span 2; }

.form-inline { display: flex; gap: 1rem; align-items: flex-end; flex-wrap: wrap; }
.form-inline label { display: flex; flex-direction: column; gap: 0.35rem; font-weight: 500; font-size: 0.8rem; }
.form-inline select, .form-inline input {
    padding: 0.55rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-solid);
    color: var(--text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.inline { display: inline; }
.actions { white-space: nowrap; }
.actions form { margin-bottom: 0.25rem; }

/* Pagination */
.pagination {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    justify-content: center;
    margin-top: 1.25rem;
    font-size: 0.9rem;
    color: var(--muted);
}

.pagination .btn {
    min-width: 5rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 200;
    left: 0; top: 0;
    width: 100%; height: 100%;
    overflow: auto;
    background: rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 250ms ease;
}

.modal.show {
    display: block;
    opacity: 1;
}

.modal-content {
    background: var(--surface-elevated);
    backdrop-filter: saturate(180%) blur(24px);
    -webkit-backdrop-filter: saturate(180%) blur(24px);
    margin: 3% auto;
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    width: 92%;
    max-width: 840px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    transform: scale(0.96) translateY(20px);
    opacity: 0;
    transition: transform 350ms var(--ease-apple), opacity 250ms ease;
}

.modal.show .modal-content {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.modal.closing {
    opacity: 0;
}

.modal.closing .modal-content {
    transform: scale(0.98) translateY(12px);
    opacity: 0;
}

.close {
    position: absolute;
    right: 1rem;
    top: 0.75rem;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--muted);
    border-radius: 50%;
    transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.close:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text);
}

.close:active {
    transform: scale(0.9);
    background: rgba(0, 0, 0, 0.08);
}

.modal-content label { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 0.75rem; font-weight: 500; font-size: 0.85rem; }
.modal-content input, .modal-content select, .modal-content textarea {
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    background: var(--surface-solid);
    color: var(--text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

/* Review detail modal — Apple-inspired clean cards */
.review-detail {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.review-detail-meta {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 0.75rem;
}

.review-detail-meta .meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 0.85rem 1rem;
    background: var(--surface-solid);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.review-detail-meta .meta-item:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.review-detail-meta .meta-label {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    gap: 0.35rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
    padding: 0.2rem 0.5rem;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.04);
}

.review-detail-meta .meta-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.4;
    word-break: break-word;
}

.review-detail-meta .meta-value.muted {
    color: var(--text-secondary);
    font-weight: 500;
}

.review-detail-card {
    background: var(--surface-solid);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.review-detail-card .card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.85rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--separator);
}

.review-detail-card .card-title {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--text);
}

.review-detail-card .card-body {
    font-size: 0.95rem;
    line-height: 1.75;
    color: var(--text);
}

.review-detail-card .card-body pre-wrap {
    white-space: pre-wrap;
    word-break: break-word;
}

.review-detail-content {
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--text);
    white-space: pre-wrap;
    word-break: break-word;
}

.original-content {
    margin-top: 1rem;
    padding: 0.9rem 1rem;
    background: rgba(0, 0, 0, 0.03);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.original-content summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--text);
    font-size: 0.85rem;
}

.detail-actions {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

/* Colored label accents */
.label-blue { background: rgba(0, 122, 255, 0.12) !important; color: #004494 !important; }
.label-green { background: rgba(52, 199, 89, 0.14) !important; color: #1d7a35 !important; }
.label-purple { background: rgba(175, 82, 222, 0.13) !important; color: #5a2375 !important; }
.label-orange { background: rgba(255, 149, 0, 0.14) !important; color: #9a5a00 !important; }
.label-red { background: rgba(255, 59, 48, 0.12) !important; color: #a8231b !important; }
.label-teal { background: rgba(48, 209, 88, 0.12) !important; color: #166534 !important; }
.label-indigo { background: rgba(88, 86, 214, 0.12) !important; color: #2d2b7a !important; }
.label-pink { background: rgba(255, 55, 95, 0.12) !important; color: #9a1a35 !important; }

.filters { padding: 1rem; }

.bilingual-header p { margin: 0.25rem 0; }
.bilingual-cell .zh { font-weight: 500; }
.bilingual-cell .ja { color: var(--muted); font-size: 0.85rem; }
.bilingual-row p { margin: 0.4rem 0; }
.recommendation .rec-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; }
.negative { color: var(--danger); font-weight: 700; }
.raw-content { max-width: 320px; word-break: break-word; }
.content-cell { max-width: 520px; min-width: 280px; }
.review-content { font-size: 0.95rem; line-height: 1.6; word-break: break-word; color: var(--text); }
.col-id { width: 50px; }
.col-sentiment { width: 80px; }
.col-date { width: 100px; }
.col-content { width: auto; }
.col-category { width: 180px; }
.col-rating { width: 70px; }
.col-department { width: 140px; }
.col-quality { width: 90px; }
.col-actions { width: 120px; }
.category-tag { display: inline-block; padding: 0.3rem 0.7rem; background: rgba(0, 113, 227, 0.1); color: var(--primary-dark); border-radius: 999px; font-size: 0.8rem; font-weight: 600; border: 1px solid rgba(0, 113, 227, 0.15); }
.meta-list, .invalid-list { list-style: none; margin: 0; padding: 0; font-size: 0.8rem; }
.meta-list li, .invalid-list li { padding: 0.15rem 0; border-bottom: 1px solid var(--separator); }
.meta-list li:last-child, .invalid-list li:last-child { border-bottom: none; }
.invalid-list li { color: var(--danger); }
.filters input[type="checkbox"] { margin-right: 0.35rem; }
.filters label:has(input[type="checkbox"]) { flex-direction: row; align-items: center; font-weight: 400; }
.bulk-actions { display: flex; gap: 0.5rem; margin-bottom: 1rem; flex-wrap: wrap; }
.bulk-actions input { padding: 0.4rem; border: 1px solid var(--border); border-radius: var(--radius-sm); }
.actions { display: flex; gap: 0.35rem; flex-wrap: wrap; align-items: center; }
.actions select { padding: 0.25rem; border: 1px solid var(--border); border-radius: 0.25rem; font-size: 0.85rem; }
canvas { max-height: 320px; }
.badge-open { background: rgba(255, 59, 48, 0.12); color: #a8231b; border-color: rgba(255, 59, 48, 0.2); }
.badge-in_progress { background: rgba(255, 204, 0, 0.16); color: #8a6a00; border-color: rgba(255, 204, 0, 0.3); }
.badge-resolved { background: rgba(52, 199, 89, 0.12); color: #1d7a35; border-color: rgba(52, 199, 89, 0.2); }
.badge-closed { background: rgba(142, 142, 147, 0.14); color: #555558; border-color: rgba(142, 142, 147, 0.25); }
.clickable-card { text-decoration: none; color: inherit; transition: transform var(--transition-spring), box-shadow var(--transition-base); }
.clickable-card:hover { transform: translateY(-4px) scale(1.01); box-shadow: var(--shadow-lg); }
.slicer { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.slicer-item { display: inline-flex; align-items: center; padding: 0.5rem 1rem; border-radius: 999px; background: rgba(0, 0, 0, 0.04); color: var(--text); text-decoration: none; font-weight: 500; transition: background var(--transition-fast), transform var(--transition-fast); }
.slicer-item:hover { background: rgba(0, 0, 0, 0.08); }
.slicer-item:active { transform: scale(0.96); }
.slicer-item.active { background: var(--primary); color: white; }
.slicer-form .slicer-row { display: flex; flex-wrap: wrap; gap: 1rem; align-items: flex-end; }
.slicer-form label { display: flex; flex-direction: column; gap: 0.35rem; font-weight: 500; font-size: 0.85rem; }
.slicer-form select { padding: 0.6rem 0.9rem; border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 0.95rem; min-width: 140px; background: var(--surface-solid); color: var(--text); transition: border-color var(--transition-fast), box-shadow var(--transition-fast); }

/* Tag selector */
.tag-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    max-height: 220px;
    overflow-y: auto;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-solid);
}

.tag-option {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.85rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border: 2px solid transparent;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.tag-option input[type="checkbox"] {
    margin: 0;
    cursor: pointer;
}

.tag-option:hover {
    transform: translateY(-1px) scale(1.02);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.tag-option:active {
    transform: scale(0.97);
}

.tag-option:has(input:checked) {
    border-color: currentColor;
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
}

.tag-color-0 { background: rgba(0, 122, 255, 0.12); color: #004494; }
.tag-color-1 { background: rgba(52, 199, 89, 0.12); color: #1d7a35; }
.tag-color-2 { background: rgba(255, 55, 95, 0.12); color: #9a1a35; }
.tag-color-3 { background: rgba(255, 149, 0, 0.14); color: #9a5a00; }
.tag-color-4 { background: rgba(175, 82, 222, 0.12); color: #5a2375; }
.tag-color-5 { background: rgba(48, 209, 88, 0.12); color: #166534; }
.tag-color-6 { background: rgba(255, 59, 48, 0.12); color: #a8231b; }
.tag-color-7 { background: rgba(88, 86, 214, 0.12); color: #2d2b7a; }

/* Focus visible */
*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.25);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .stat-card:hover, .clickable-card:hover {
        transform: none;
    }

    .modal-content {
        transform: none;
    }
}

/* Metric card accents */
.metric-total::before { background: linear-gradient(135deg, rgba(0, 113, 227, 0.08), transparent); }
.metric-positive::before { background: linear-gradient(135deg, rgba(52, 199, 89, 0.08), transparent); }
.metric-gender::before { background: linear-gradient(135deg, rgba(175, 82, 222, 0.08), transparent); }
.metric-negative::before { background: linear-gradient(135deg, rgba(255, 59, 48, 0.08), transparent); }
.metric-age::before { background: linear-gradient(135deg, rgba(255, 149, 0, 0.08), transparent); }

.metric-total .stat-value { color: var(--primary); }
.metric-positive .stat-value { color: #34c759; }
.metric-gender .stat-value { color: #af52de; }
.metric-negative .stat-value { color: var(--danger); }
.metric-age .stat-value { color: #ff9500; }

/* Theme analysis highlight */
.theme-analysis-row {
    grid-template-columns: 1fr;
}

.theme-analysis-panel {
    min-height: 420px;
}

.theme-analysis-panel canvas {
    max-height: 360px;
    height: 360px !important;
}

/* Inline edit selects in reviews table */
.inline-form {
    display: inline;
    margin: 0;
}

.inline-select {
    padding: 0.35rem 0.6rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-solid);
    color: var(--text);
    font-size: 0.85rem;
    max-width: 160px;
    cursor: pointer;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.inline-select:hover {
    border-color: var(--primary);
}

.inline-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
}

.inline-select.flash-success {
    border-color: #34c759;
    box-shadow: 0 0 0 3px rgba(52, 199, 89, 0.25);
    transition: border-color 200ms ease, box-shadow 200ms ease;
}

/* Login page */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
    padding: 2rem 1rem;
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding: 2rem;
    text-align: center;
}

.login-card h1 {
    margin-top: 0;
    font-size: 1.75rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: left;
    margin-top: 1.5rem;
}

.login-form label {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.login-form input {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-solid);
    color: var(--text);
    font-size: 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
}

.login-form .btn {
    margin-top: 0.5rem;
    width: 100%;
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.alert-error {
    background: rgba(255, 59, 48, 0.1);
    color: #a8231b;
    border: 1px solid rgba(255, 59, 48, 0.2);
}

.alert-success {
    background: rgba(52, 199, 89, 0.1);
    color: #1d7a35;
    border: 1px solid rgba(52, 199, 89, 0.2);
}

.dashboard-header,
.reviews-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    flex-wrap: wrap;
    margin: 1.5rem 0 1rem;
}

.dashboard-header h1,
.reviews-header h1 {
    margin: 0 0 0.25rem;
}

.alert-badge-link {
    text-decoration: none;
}

.reviews-actions {
    display: flex;
    gap: 0.6rem;
    align-items: center;
    flex-wrap: wrap;
}

.import-panel {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    padding: 0.4rem 0.6rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.import-form {
    display: inline;
}

.import-mode-group {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.import-mode-option {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text);
    cursor: pointer;
    white-space: nowrap;
}

.import-mode-option input[type="radio"] {
    margin: 0;
    cursor: pointer;
}

.btn-file {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.btn-file input[type="file"] {
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

/* Info icon */
.info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background: var(--text-secondary);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    font-style: italic;
    font-family: Georgia, serif;
    line-height: 1;
    cursor: pointer;
    user-select: none;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.info-icon:hover {
    background: var(--primary);
    transform: scale(1.1);
}

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

/* Popover for import mode help */
.popover {
    display: none;
    position: fixed;
    z-index: 300;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    opacity: 0;
    transition: opacity 200ms ease;
}

.popover.show {
    opacity: 1;
}

.popover-content {
    background: var(--surface-elevated);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    margin: 20% auto;
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius);
    width: 92%;
    max-width: 360px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    transform: scale(0.96);
    opacity: 0;
    transition: transform 250ms var(--ease-apple), opacity 200ms ease;
}

.popover.show .popover-content {
    transform: scale(1);
    opacity: 1;
}

.popover-content h4 {
    margin: 0 0 0.5rem;
    font-size: 1rem;
    font-weight: 600;
}

.popover-content p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text);
}

/* Mobile */
@media (max-width: 768px) {
    .container { padding: 0 1rem; }
    h1 { font-size: 1.5rem; }
    .row { grid-template-columns: 1fr; }
    .core-metrics { grid-template-columns: repeat(2, 1fr); }
    .nav-inner { flex-wrap: wrap; }
    .nav-links { order: 3; width: 100%; justify-content: center; }
    .form-inline { flex-direction: column; align-items: stretch; }
    .form-inline label { width: 100%; }
    .form-inline select, .form-inline input { width: 100%; }
    .table { display: block; overflow-x: auto; }
}