/* ── Design tokens ────────────────────────────────────────────────────────── */
:root {
    --bg:              #0d1117;
    --surface:         #161b22;
    --surface-2:       #1c2128;
    --border:          #21262d;
    --border-light:    #30363d;
    --text:            #e6edf3;
    --text-secondary:  #8b949e;
    --text-dim:        #484f58;
    --accent:          #58a6ff;
    --accent-hover:    #79c0ff;
    --accent-bg:       rgba(88, 166, 255, 0.08);
    --accent-bg-hover: rgba(88, 166, 255, 0.15);
    --green:           #3fb950;
    --red:             #f85149;
    --radius:          6px;
    --font-body:       system-ui, -apple-system, 'Segoe UI', sans-serif;
    --font-mono:       ui-monospace, 'SFMono-Regular', 'SF Mono', Menlo, monospace;
}

/* ── 1. Base reset ────────────────────────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 14px;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    color: var(--accent-hover);
}

.mono {
    font-family: var(--font-mono);
}

/* ── 2. Header ────────────────────────────────────────────────────────────── */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(13, 17, 23, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    max-width: 1100px;
    margin: 0 auto;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.brand {
    font-family: var(--font-mono);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
}

.brand:hover {
    text-decoration: none;
}

.brand-snap {
    color: var(--accent);
}

.brand-track {
    color: var(--text);
}

.brand-tld {
    color: var(--text-dim);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 4px;
}

.nav-links a {
    font-size: 13px;
    color: var(--text-secondary);
    padding: 6px 10px;
    border-radius: var(--radius);
    transition: color 0.15s, background 0.15s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text);
}

.nav-links a.active {
    background: var(--surface-2);
}

/* ── 3. Mobile nav toggle ─────────────────────────────────────────────────── */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    flex-direction: column;
    gap: 4px;
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 1px;
}

/* ── 4. Layout ────────────────────────────────────────────────────────────── */
main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
}

footer {
    max-width: 1100px;
    margin: 0 auto;
    padding: 16px 24px;
    font-size: 12px;
    color: var(--text-dim);
    border-top: 1px solid var(--border);
}

/* ── 5. Stats row ─────────────────────────────────────────────────────────── */
.stats-row {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.stats-row-compact {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
}

.stat-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -1px;
}

.stat-value-sm {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0;
}

.stat-accent {
    color: var(--accent);
}

/* ── 6. Panels ────────────────────────────────────────────────────────────── */
.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 16px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.panel-header h2,
.panel h2 {
    font-size: 14px;
    font-weight: 600;
    margin: 0;
}

.panel-link {
    font-size: 12px;
    color: var(--text-secondary);
}

.badge {
    background: var(--accent-bg);
    color: var(--accent);
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 999px;
}

.badge-dim {
    background: var(--surface-2);
    color: var(--text-dim);
}

.empty-state {
    color: var(--text-dim);
    font-size: 13px;
    text-align: center;
    padding: 20px;
}

/* ── 6b. Today's collapsible panel ────────────────────────────────────────── */
.today-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: none;
    border: none;
    color: var(--text);
    cursor: pointer;
    padding: 0;
    font-family: var(--font-body);
}
.today-toggle-left {
    display: flex;
    align-items: center;
    gap: 10px;
}
.today-toggle h2 { margin: 0; }
.today-chevron {
    font-size: 22px;
    color: var(--accent);
    background: var(--accent-bg);
    border: 1px solid rgba(88, 166, 255, 0.25);
    border-radius: var(--radius);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, border-color 0.15s;
    flex-shrink: 0;
}
.today-toggle:hover .today-chevron {
    border-color: var(--accent);
    color: var(--accent);
}
.today-open .today-chevron { transform: rotate(180deg); }
.today-preview { margin-top: 14px; }
.today-registrars {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.today-reg-tag {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 3px 8px;
    font-size: 11px;
    color: var(--text-secondary);
}
.today-reg-count {
    color: var(--accent);
    font-weight: 600;
    font-family: var(--font-mono);
}
.today-body {
    display: none;
    margin-top: 16px;
}
.today-open .today-body { display: block; }
.today-open .today-preview { display: none; }

/* ── 7. Today's table ─────────────────────────────────────────────────────── */
.today-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.today-table th {
    text-align: left;
    padding: 6px 8px;
    color: var(--text-dim);
    font-size: 10px;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.today-table td {
    padding: 5px 8px;
    border-bottom: 1px solid var(--border);
}

.today-table td:first-child {
    font-family: var(--font-mono);
}

.today-table td:last-child {
    color: var(--text-secondary);
}

/* ── 8. Leaderboard table ─────────────────────────────────────────────────── */
.leaderboard-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.leaderboard-table th {
    text-align: left;
    padding: 8px 6px;
    color: var(--text-dim);
    font-size: 10px;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.leaderboard-table td {
    padding: 8px 6px;
    border-bottom: 1px solid var(--border);
}

.col-rank {
    width: 30px;
    color: var(--text-dim);
}

.col-rank:first-child {
    color: var(--accent);
    font-weight: 700;
}

td.col-rank:first-child {
    color: var(--accent);
    font-weight: 700;
}

.col-num {
    text-align: right;
    width: 70px;
}

.col-spark {
    width: 70px;
}

.trend-up {
    color: var(--green);
}

.trend-down {
    color: var(--red);
}

/* ── 9. Charts ────────────────────────────────────────────────────────────── */
.charts-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 16px;
}
.charts-row canvas {
    max-height: 220px;
    margin-bottom: 16px;
}

/* Panel-level charts need a hard height. Chart.js with responsive +
   maintainAspectRatio:false grows the canvas on every resize event when
   its parent has no height constraint, which loops forever. */
#marketShareChart,
#h2hChart {
    width: 100% !important;
    height: 320px !important;
    max-height: 320px;
}
#monthChart {
    width: 100% !important;
    height: 480px !important;
    max-height: 480px;
}

/* ── 10. Table controls ───────────────────────────────────────────────────── */
.table-controls {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 160px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px 12px;
    color: var(--text);
    font-size: 12px;
    font-family: var(--font-body);
}

.search-input::placeholder {
    color: var(--text-dim);
}

.filter-select {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px 12px;
    color: var(--text);
    font-size: 12px;
    font-family: var(--font-body);
}

/* ── 11. Domains table ────────────────────────────────────────────────────── */
.domains-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.domains-table th {
    cursor: pointer;
    user-select: none;
    text-align: left;
    padding: 6px 8px;
    color: var(--text-dim);
    font-size: 10px;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.domains-table th:hover {
    color: var(--text-secondary);
}

.domains-table th[aria-sort="ascending"]::after {
    content: " \2191";
}

.domains-table th[aria-sort="descending"]::after {
    content: " \2193";
}

.domains-table td {
    padding: 6px 8px;
    border-bottom: 1px solid var(--border);
}

.domains-table td:first-child {
    font-family: var(--font-mono);
    color: var(--text);
}

.domains-table td:nth-child(2),
.domains-table td:nth-child(3) {
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 11px;
}

.domains-table td:last-child {
    color: var(--text-secondary);
}

/* ── 12. Pagination ───────────────────────────────────────────────────────── */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    font-size: 12px;
    color: var(--text-secondary);
}

.page-btn {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 6px 14px;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 12px;
}

.page-btn:hover:not(:disabled) {
    color: var(--text);
    border-color: var(--border-light);
}

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

/* ── 13. Archive grid ─────────────────────────────────────────────────────── */
.archive-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}

.archive-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    text-decoration: none;
    color: var(--text);
    transition: border-color 0.15s;
}

.archive-card:hover {
    border-color: var(--accent);
    color: var(--text);
}

.archive-month {
    font-weight: 600;
    margin-bottom: 10px;
}

.archive-stats {
    display: flex;
    gap: 16px;
    margin-bottom: 8px;
}

.archive-stat-value {
    font-size: 18px;
    font-weight: 700;
    font-family: var(--font-mono);
}

.archive-stat-label {
    font-size: 10px;
    text-transform: uppercase;
    color: var(--text-dim);
}

.archive-top {
    font-size: 11px;
    color: var(--text-secondary);
}

/* ── 14. Head-to-head ─────────────────────────────────────────────────────── */
.h2h-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

.h2h-vs {
    color: var(--text-dim);
    font-size: 12px;
    text-transform: uppercase;
}

.h2h-result {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 16px;
}

.h2h-side {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
}

.h2h-name {
    font-weight: 600;
    margin-bottom: 6px;
}

.h2h-total {
    font-size: 28px;
    font-weight: 700;
    font-family: var(--font-mono);
}

/* ── 15. Responsive (max-width: 720px) ────────────────────────────────────── */
@media (max-width: 720px) {
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-row .stat-card:last-child {
        grid-column: span 2;
    }

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

    .charts-row {
        grid-template-columns: 1fr;
    }

    .col-spark {
        display: none;
    }

    .h2h-result {
        grid-template-columns: 1fr;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 52px;
        left: 0;
        right: 0;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 12px 24px;
        gap: 12px;
    }

    .nav-links.open {
        display: flex;
    }
}