/* ===========================
   PopSNP — Design System
   =========================== */

:root {
    --c-bg: #fafbfc;
    --c-surface: #ffffff;
    --c-primary: #7c3aed;
    --c-primary-dark: #6d28d9;
    --c-primary-light: #8b5cf6;
    --c-accent: #06b6d4;
    --c-text: #1e293b;
    --c-text-muted: #64748b;
    --c-text-faint: #94a3b8;
    --c-border: #e2e8f0;
    --c-border-light: #f1f5f9;
    --c-danger: #ef4444;
    --c-success: #10b981;

    --radius-xl: 24px;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
    --shadow-btn: 0 4px 14px rgba(124, 58, 237, 0.25);

    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--c-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
}

html, body {
    min-height: 100%;
}

body {
    background: var(--c-bg);
    position: relative;
    overflow-x: hidden;
}

/* ── Background pattern ── */
.bg-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background: 
        radial-gradient(circle at 20% 30%, rgba(124, 58, 237, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(6, 182, 212, 0.03) 0%, transparent 50%),
        linear-gradient(180deg, var(--c-bg) 0%, #f0f2f5 100%);
}

.bg-canvas::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5c-2 8-8 14-16 16 8 2 14 8 16 16 2-8 8-14 16-16-8-2-14-8-16-16z' fill='%237c3aed' fill-opacity='0.03'/%3E%3C/svg%3E");
    opacity: 0.5;
}

/* ── Site Header ── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--c-border);
}

.header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-text {
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--c-primary);
}

.header-badge {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--c-text-muted);
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: 100px;
    padding: 5px 14px;
    letter-spacing: 0.02em;
}

/* ── Main layout ── */
.site-main {
    position: relative;
    z-index: 1;
    max-width: 1100px;
    margin: 0 auto;
    padding: 48px 32px 80px;
}

/* ── Hero ── */
.hero {
    text-align: center;
    margin-bottom: 40px;
}

.hero-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-primary);
    background: rgba(124, 58, 237, 0.08);
    border: 1px solid rgba(124, 58, 237, 0.15);
    border-radius: 100px;
    padding: 6px 14px;
    margin-bottom: 20px;
}

.hero-title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 16px;
    color: var(--c-text);
}

.hero-title-accent {
    color: var(--c-primary);
}

.hero-desc {
    color: var(--c-text-muted);
    font-size: 1rem;
    line-height: 1.7;
    max-width: 540px;
    margin: 0 auto 24px;
}



/* ── Privacy notice ── */
.privacy-notice {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 0.78rem;
    color: var(--c-text-muted);
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    padding: 8px 14px 8px 10px;
    margin-bottom: 20px;
}

/* ── SNP info panel ── */
.snp-info-card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    box-shadow: var(--shadow-sm);
}

.snp-info-text {
    margin-bottom: 16px;
}

.snp-info-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #b45309;
    background: #fef3c7;
    border: 1px solid #fcd34d;
    border-radius: 100px;
    padding: 4px 10px;
    margin-bottom: 10px;
}

.snp-info-text p {
    font-size: 0.85rem;
    color: var(--c-text-muted);
    line-height: 1.6;
}

.snp-info-text p strong {
    color: var(--c-text);
    font-weight: 600;
}

.snp-gene-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.snp-gene-group {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: var(--c-bg);
    border: 1px solid var(--c-border-light);
    border-radius: var(--radius-sm);
}

.gene-name {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--c-primary);
}

.gene-snps {
    font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
    font-size: 0.65rem;
    color: var(--c-text-faint);
}

/* ── Upload card ── */
.upload-section {
    margin-bottom: 28px;
}

.drop-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 36px 24px;
    border: 2px dashed var(--c-border);
    border-radius: var(--radius-lg);
    background: var(--c-bg);
    transition: all 0.2s ease;
    cursor: pointer;
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--c-primary);
    background: rgba(124, 58, 237, 0.04);
}

.drop-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 4px;
    color: var(--c-primary);
}

.drop-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--c-text);
}

.drop-sub {
    font-size: 0.8rem;
    color: var(--c-text-faint);
}

.browse-label {
    position: relative;
    display: inline-block;
    padding: 10px 24px;
    border-radius: var(--radius-md);
    background: var(--c-primary);
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-btn);
}

.browse-label:hover {
    background: var(--c-primary-dark);
    transform: translateY(-1px);
}

.browse-label input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    font-size: 0;
    width: 100%;
}

.drop-formats {
    font-size: 0.78rem;
    color: var(--c-text-faint);
    margin-top: 2px;
}

/* ── File chip ── */
.file-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--radius-md);
    color: #166534;
    font-size: 0.875rem;
    font-weight: 500;
}

.file-chip.hidden {
    display: none;
}

.file-chip-icon {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
    color: #16a34a;
}

.file-chip-remove {
    margin-left: auto;
    background: none;
    border: none;
    color: #166534;
    font-size: 1.15rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 2px;
    opacity: 0.55;
    transition: opacity 0.15s;
}

.file-chip-remove:hover {
    opacity: 1;
}

/* ── Analyze button ── */
.analyze-btn {
    width: 100%;
    padding: 16px 24px;
    background: var(--c-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-btn);
}

.analyze-btn:hover:not(:disabled) {
    background: var(--c-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.35);
}

.analyze-btn:active:not(:disabled) {
    transform: translateY(0);
}

.analyze-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

/* ── Spinner ── */
.spinner {
    width: 18px;
    height: 18px;
    border: 2.5px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.65s linear infinite;
    flex-shrink: 0;
}

.spinner.hidden,
.hidden {
    display: none !important;
}

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

/* ── Result section ── */
.result-section:empty {
    display: none;
}

/* ── Results container ── */
.results-container {
    animation: slideUp 0.4s ease both;
    margin-bottom: 20px;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.results-title {
    flex: 1;
}

/* ── Export button ── */
.export-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--c-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

.export-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: var(--shadow-btn);
}

.export-btn:active {
    transform: translateY(0);
}

.export-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.export-btn svg {
    flex-shrink: 0;
}

.export-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ── Match banner ── */
.match-banner {
    background: var(--c-primary);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    color: #fff;
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
    animation: slideUp 0.4s ease both;
}

.match-banner::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -5%;
    width: 200px;
    height: 200px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
}

.match-label {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.65;
    margin-bottom: 8px;
}

.match-population {
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 20px;
}

.match-stats {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.match-stat {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.match-stat-label {
    font-size: 0.7rem;
    opacity: 0.6;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.match-stat-value {
    font-size: 1.05rem;
    font-weight: 700;
}

/* ── Population cards ── */
.population-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
    animation: slideUp 0.4s ease both;
    animation-delay: 0.12s;
}

.population-card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    padding: 16px;
    transition: all 0.2s ease;
}

.population-card:hover {
    border-color: var(--c-primary);
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.1);
}

.population-card.top-match {
    border-color: var(--c-primary);
    background: rgba(124, 58, 237, 0.03);
}

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

.pop-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--c-text);
}

.pop-rank {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--c-primary);
    background: rgba(124, 58, 237, 0.1);
    padding: 2px 8px;
    border-radius: 100px;
}

.pop-bar-container {
    height: 6px;
    background: var(--c-border-light);
    border-radius: 100px;
    overflow: hidden;
    margin-bottom: 8px;
}

.pop-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
    border-radius: 100px;
    transition: width 0.6s ease;
}

.pop-score {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--c-text-muted);
}

.pop-score strong {
    color: var(--c-text);
    font-weight: 700;
}

/* ── Table card ── */
.table-card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    animation: slideUp 0.4s ease both;
    animation-delay: 0.08s;
}

.table-card-header {
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--c-border);
}

.table-card-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--c-text);
    margin-bottom: 3px;
}

.table-card-subtitle {
    font-size: 0.8rem;
    color: var(--c-text-muted);
}

.table-scroll {
    overflow-x: auto;
    max-height: 420px;
    overflow-y: auto;
}

/* ── MAF table ── */
.maf-table {
    width: 100%;
    min-width: 680px;
    border-collapse: collapse;
    font-size: 0.8rem;
}

.maf-table thead th {
    position: sticky;
    top: 0;
    z-index: 2;
    background: #f6f8ff;
    color: var(--c-text-muted);
    font-weight: 700;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--c-border);
    white-space: nowrap;
}

.maf-table tbody td {
    padding: 9px 12px;
    border-bottom: 1px solid rgba(226, 232, 240, 0.55);
    color: var(--c-text);
    white-space: nowrap;
    vertical-align: middle;
}

.maf-table tbody tr:last-child td {
    border-bottom: none;
}

.maf-table tbody tr:hover td {
    background: rgba(124, 58, 237, 0.03) !important;
}

.snp-id {
    font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
    font-size: 0.76rem;
    color: var(--c-primary);
    font-weight: 600;
}

.gene-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    color: #4f46e5;
    background: rgba(124, 58, 237, 0.09);
    border-radius: 6px;
    padding: 2px 7px;
}

.user-geno {
    font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
    font-weight: 700;
    font-size: 0.84rem;
    letter-spacing: 0.06em;
    color: var(--c-text);
}

.maf-cell {
    text-align: right;
    font-variant-numeric: tabular-nums;
    border-radius: 5px;
    transition: background 0.15s;
}

/* ── Error banner ── */
.error-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--radius-lg);
    color: #b91c1c;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 16px;
    animation: slideUp 0.3s ease both;
}

/* ── Loading state in result ── */
.result-loading {
    text-align: center;
    padding: 48px 24px;
    color: var(--c-text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    font-size: 0.9rem;
}

.result-loading .spinner {
    border-color: rgba(124, 58, 237, 0.2);
    border-top-color: var(--c-primary);
    width: 28px;
    height: 28px;
}

/* ── Share section ── */
.share-section {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-top: 20px;
    animation: slideUp 0.4s ease both;
}

.share-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--c-text);
    margin: 0 0 8px;
}

.share-header p {
    font-size: 0.85rem;
    color: var(--c-text-muted);
    margin: 0 0 20px;
}

.share-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.share-fields {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}

.share-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.share-field label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--c-text);
}

.share-field select,
.share-field input {
    padding: 10px 12px;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--c-text);
    background: var(--c-bg);
}

.share-field select:focus,
.share-field input:focus {
    outline: none;
    border-color: var(--c-primary);
}

.share-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--c-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    align-self: flex-start;
}

.share-submit:hover:not(:disabled) {
    background: var(--c-primary-dark);
}

.share-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.share-notice {
    font-size: 0.75rem;
    color: var(--c-text-faint);
    margin: 0;
}

/* ── Slide-up animation ── */
@keyframes slideUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Snackbar ── */
.snackbar {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 14px 20px;
    border-radius: var(--radius-md);
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: snackbarIn 0.3s ease;
}

.snackbar.success {
    background: var(--c-success);
}

.snackbar.error {
    background: var(--c-danger);
}

.snackbar-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0.7;
    padding: 0;
    line-height: 1;
}

.snackbar-close:hover {
    opacity: 1;
}

/* ── Database Viewer ── */
.viewer-section {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--c-border);
}

.viewer-header {
    margin-bottom: 16px;
}

.viewer-header h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--c-text);
    margin: 0 0 12px 0;
    letter-spacing: -0.02em;
}

.viewer-controls-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
}

.viewer-filters-group {
    display: flex;
    align-items: center;
    gap: 2px;
    flex-wrap: wrap;
}

.viewer-controls-row > .viewer-select {
    align-self: flex-end;
}

.viewer-ethnicity-filter {
    display: flex;
    align-items: center;
    gap: 8px;
}

.viewer-ethnicity-filter label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--c-text-faint);
}

.viewer-filter {
    padding: 4px 8px;
    background: transparent;
    border: none;
    border-radius: 3px;
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--c-text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.viewer-filter:hover {
    background: var(--c-bg);
    color: var(--c-text);
}

.filter-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
}

.filter-checkbox input {
    width: 14px;
    height: 14px;
    accent-color: var(--c-primary);
    cursor: pointer;
}

.filter-checkbox .filter-label {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--c-text-muted);
    padding: 3px 8px;
    border-radius: 4px;
    border: 1px solid var(--c-border);
    background: var(--c-bg-offset);
    transition: all 0.15s;
}

.filter-checkbox:hover .filter-label {
    border-color: var(--c-primary);
    color: var(--c-text);
}

.filter-checkbox input:checked + .filter-label {
    background: var(--c-primary);
    border-color: var(--c-primary);
    color: white;
}

.filter-header {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--c-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-right: 8px;
}

.filter-category {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--c-text-faint);
    text-transform: uppercase;
    margin-right: 4px;
    padding: 3px 6px;
    background: var(--c-bg-offset);
    border-radius: 3px;
}

.filter-label {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--c-text-faint);
    margin: 0 2px 0 6px;
    text-transform: uppercase;
}

.filter-divider {
    color: var(--c-border);
    margin: 0 4px;
    font-size: 0.8rem;
}

.viewer-select {
    padding: 8px 12px;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--c-text);
    background: var(--c-surface);
    min-width: 180px;
    font-weight: 500;
}

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

.viewer-stats {
    font-size: 0.8rem;
    color: var(--c-text-muted);
}

.viewer-content {
    min-height: 100px;
}

.viewer-empty {
    text-align: center;
    color: var(--c-text-faint);
    font-size: 0.85rem;
    padding: 40px 20px;
}

.viewer-loading {
    text-align: center;
    color: var(--c-text-faint);
    padding: 40px;
}

/* Aggregate stats */
.aggregate-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
}

.aggregate-card {
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    padding: 14px;
}

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

.aggregate-rsid {
    font-family: 'SF Mono', monospace;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--c-text);
}

.aggregate-gene {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--c-primary);
    background: rgba(124, 58, 237, 0.1);
    padding: 2px 8px;
    border-radius: 100px;
}

.aggregate-bars {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.aggregate-bar-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.aggregate-label {
    font-family: 'SF Mono', monospace;
    font-size: 0.7rem;
    font-weight: 600;
    width: 24px;
    color: var(--c-text-muted);
}

.aggregate-bar-wrap {
    flex: 1;
    height: 8px;
    background: var(--c-border-light);
    border-radius: 4px;
    overflow: hidden;
}

.aggregate-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s ease;
}

.aggregate-bar { transition: width 0.3s ease; }

.aggregate-count {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--c-text);
    width: 20px;
    text-align: right;
}

.aggregate-total {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid var(--c-border-light);
    font-size: 0.7rem;
    color: var(--c-text-faint);
}

.viewer-header {
    margin-bottom: 16px;
}

.viewer-header h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--c-text);
    margin: 0 0 16px 0;
    letter-spacing: -0.02em;
}

.viewer-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.viewer-filters {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.viewer-filter {
    padding: 6px 12px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--c-text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.viewer-filter:hover {
    border-color: var(--c-primary);
    color: var(--c-primary);
}

.viewer-filter.active {
    background: var(--c-primary);
    border-color: var(--c-primary);
    color: white;
}

.viewer-search {
    padding: 8px 12px;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--c-text);
    background: var(--c-surface);
    width: 180px;
}

.viewer-search:focus {
    outline: none;
    border-color: var(--c-primary);
}

.viewer-content {
    min-height: 100px;
}

.viewer-empty {
    text-align: center;
    color: var(--c-text-faint);
    font-size: 0.85rem;
    padding: 40px 20px;
}

.viewer-stats {
    margin-bottom: 12px;
    font-size: 0.8rem;
    color: var(--c-text-muted);
}

.viewer-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
}

.viewer-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.75rem;
    min-width: 600px;
}

.viewer-table th {
    background: var(--c-bg);
    color: var(--c-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    padding: 8px 6px;
    text-align: left;
    border-bottom: 1px solid var(--c-border);
    white-space: nowrap;
    font-size: 0.65rem;
}

.viewer-table td {
    padding: 6px;
    border-bottom: 1px solid var(--c-border-light);
    color: var(--c-text);
}

.viewer-geno-cell {
    font-family: 'SF Mono', monospace;
    font-size: 0.65rem;
}

.viewer-table tr:last-child td {
    border-bottom: none;
}

.viewer-table tr:hover td {
    background: var(--c-bg);
}

.viewer-eth {
    font-weight: 600;
    color: var(--c-primary);
}

.viewer-geno-cell {
    font-family: 'SF Mono', monospace;
    font-size: 0.7rem;
}

.viewer-loading {
    text-align: center;
    color: var(--c-text-faint);
    padding: 40px;
}

.viewer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.viewer-header h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--c-text);
    margin: 0;
    letter-spacing: -0.02em;
}

.viewer-btn {
    padding: 8px 14px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--c-text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.viewer-btn:hover {
    border-color: var(--c-primary);
    color: var(--c-primary);
}

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

.viewer-content {
    min-height: 100px;
}

.viewer-empty {
    text-align: center;
    color: var(--c-text-faint);
    font-size: 0.85rem;
    padding: 40px 20px;
}

.viewer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 12px;
}

.viewer-card {
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    transition: all 0.2s;
}

.viewer-card:hover {
    border-color: var(--c-primary);
}

.viewer-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--c-border-light);
}

.viewer-ethnicity {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--c-text);
}

.viewer-date {
    font-size: 0.7rem;
    color: var(--c-text-faint);
}

.viewer-phenotypes {
    display: flex;
    gap: 6px;
    margin-bottom: 10px;
}

.viewer-pheno {
    font-size: 0.7rem;
    color: var(--c-text-muted);
    padding: 2px 0;
}

.viewer-geno-toggle {
    font-size: 0.7rem;
    color: var(--c-primary);
    cursor: pointer;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed var(--c-border-light);
}

.viewer-geno-toggle:hover {
    color: var(--c-primary-dark);
}

.viewer-geno-list {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--c-border);
}

.viewer-geno-hidden {
    display: none;
}

.viewer-geno-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.7rem;
    margin-top: 8px;
}

.viewer-geno-table th {
    text-align: left;
    padding: 6px 8px;
    background: var(--c-surface);
    color: var(--c-text-muted);
    font-weight: 600;
    font-size: 0.65rem;
    text-transform: uppercase;
}

.viewer-geno-table td {
    padding: 5px 8px;
    border-bottom: 1px solid var(--c-border-light);
    color: var(--c-text);
}

.viewer-geno-table tr:last-child td {
    border-bottom: none;
}

.viewer-loading {
    text-align: center;
    color: var(--c-text-faint);
    padding: 40px;
}

.viewer-stats {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    font-size: 0.8rem;
    color: var(--c-text-muted);
}

/* ── Footer ── */
.site-footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 20px 24px 36px;
    color: var(--c-text-faint);
    font-size: 0.78rem;
    line-height: 1.75;
}

.site-footer a {
    color: var(--c-text-muted);
    text-decoration: underline;
    text-decoration-color: var(--c-border);
    text-underline-offset: 3px;
    transition: color 0.15s;
}

.site-footer a:hover {
    color: var(--c-primary);
    text-decoration-color: var(--c-primary);
}

/* ── Responsive ── */
@media (max-width: 600px) {
    .site-main {
        padding: 28px 16px 50px;
    }
    .hero-title {
        font-size: 1.7rem;
    }
    .hero-desc {
        font-size: 0.94rem;
    }
    .upload-card {
        padding: 18px;
    }
    .drop-zone {
        padding: 28px 16px;
    }
    .match-banner {
        padding: 24px 20px;
    }

    .results-header {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }

    .export-btn {
        align-self: flex-start;
    }
    .match-population {
        font-size: 1.45rem;
    }
    .header-badge {
        display: none;
    }
    .table-card-header {
        padding: 16px 16px 12px;
    }
    .maf-table thead th,
    .maf-table tbody td {
        padding: 8px 10px;
    }
    .population-cards {
        grid-template-columns: 1fr;
    }
}