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

:root {
    --bg: #0f1117;
    --bg-card: #1a1d27;
    --bg-card-hover: #22263a;
    --bg-input: #141722;
    --border: #2a2e3e;
    --text: #e4e6f0;
    --text-dim: #8b8fa3;
    --text-muted: #5c6078;
    --accent: #5b8def;
    --accent-glow: rgba(91, 141, 239, 0.25);
    --accent2: #7c5bf7;
    --green: #34d399;
    --red: #f87171;
    --yellow: #fbbf24;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

html {
    font-size: 15px;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* ─── Header ─── */
.header {
    background: linear-gradient(135deg, #141833 0%, #1e2444 50%, #162040 100%);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 0;
    text-align: center;
}

.header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #e4e6f0 0%, #5b8def 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-icon {
    font-size: 1.4rem;
    margin-right: 0.3rem;
    -webkit-text-fill-color: initial;
}

.year {
    background: linear-gradient(135deg, #5b8def, #7c5bf7);
    -webkit-background-clip: text;
    background-clip: text;
}

.subtitle {
    color: var(--text-dim);
    font-size: 0.9rem;
    margin-top: 0.2rem;
    letter-spacing: 0.05em;
}

/* ─── Dataset Switcher ─── */
.dataset-switcher {
    display: flex;
    gap: 0.4rem;
    justify-content: center;
    margin-top: 0.8rem;
}

.ds-btn {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-family: var(--font);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.ds-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text);
}

.ds-btn.active {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 2px 12px var(--accent-glow);
}

/* ─── Overview Stats ─── */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.overview-stat {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.2rem;
    box-shadow: var(--shadow);
}

.overview-stat .stat-val {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
}

.overview-stat .stat-label {
    font-size: 0.78rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.2rem;
}

/* ─── Tabs ─── */
.tabs {
    display: flex;
    gap: 0;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    border-bottom: 1px solid var(--border);
}

.tab {
    background: none;
    border: none;
    color: var(--text-dim);
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 1rem 1.2rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

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

.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* ─── Content ─── */
.content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem;
}

.tab-panel {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

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

/* ─── Card ─── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text);
}

/* ─── Form Controls ─── */
.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.filter-group label {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.35rem;
}

.filter-section-title {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-dim);
    margin: 1rem 0 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

input[type="text"],
select {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.9rem;
    padding: 0.6rem 0.8rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}

input[type="text"]:focus,
select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

input::placeholder {
    color: var(--text-muted);
}

select {
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.65rem 1.8rem;
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.2s;
    box-shadow: 0 2px 12px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

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

/* ─── Search ─── */
.search-box input {
    font-size: 1.1rem;
    padding: 0.85rem 1rem;
    border-radius: var(--radius);
}

/* ─── Results ─── */
.results-area {
    min-height: 100px;
}

.stat-row {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.8rem 1.2rem;
    min-width: 120px;
}

.stat-val {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ─── Tables ─── */
.data-table-wrap {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

table.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

table.data-table th {
    background: var(--bg-card);
    color: var(--text-dim);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.7rem 0.8rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    white-space: nowrap;
}

table.data-table th.num {
    text-align: right;
}

table.data-table td {
    padding: 0.55rem 0.8rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    white-space: nowrap;
}

table.data-table td.num {
    text-align: right;
    font-variant-numeric: tabular-nums;
    font-family: var(--mono);
    font-size: 0.82rem;
}

table.data-table tr:hover td {
    background: var(--bg-card-hover);
}

table.data-table tr.clickable {
    cursor: pointer;
}

table.data-table tr.clickable:hover td {
    color: var(--accent);
}

/* Matrix specific */
table.matrix th,
table.matrix td {
    text-align: center;
    padding: 0.45rem 0.5rem;
    min-width: 48px;
}

table.matrix td.diagonal {
    background: rgba(91, 141, 239, 0.12);
    font-weight: 700;
    color: var(--accent);
}

table.matrix td.zero {
    color: var(--text-muted);
}

table.matrix tr.total-row td {
    border-top: 2px solid var(--border);
    font-weight: 700;
    background: var(--bg-card);
}

table.matrix th:first-child,
table.matrix td:first-child {
    text-align: left;
    font-weight: 600;
    position: sticky;
    left: 0;
    background: var(--bg-card);
    z-index: 1;
}

table.matrix tr:hover td:first-child {
    background: var(--bg-card-hover);
}

/* ─── Modal ─── */
.modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal.hidden {
    display: none;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalIn 0.25s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }

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

.modal-close {
    position: absolute;
    top: 0.8rem;
    right: 0.8rem;
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 1.5rem;
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
}

.detail-header {
    margin-bottom: 1rem;
}

.detail-name {
    font-size: 1.3rem;
    font-weight: 800;
}

.detail-meta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.detail-meta-item {
    font-size: 0.85rem;
    color: var(--text-dim);
}

.detail-meta-item strong {
    color: var(--text);
    font-weight: 600;
}

.detail-ranks {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin: 1rem 0;
}

.rank-badge {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.5rem 1rem;
    text-align: center;
}

.rank-badge .rank-val {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--accent);
}

.rank-badge .rank-label {
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
}

.detail-section-title {
    font-size: 0.85rem;
    font-weight: 700;
    margin: 1.2rem 0 0.5rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

table.splits-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}

table.splits-table th {
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    color: var(--text-dim);
    padding: 0.5rem 0.6rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

table.splits-table th.num {
    text-align: right;
}

table.splits-table td {
    padding: 0.4rem 0.6rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

table.splits-table td.num {
    text-align: right;
    font-variant-numeric: tabular-nums;
    font-family: var(--mono);
    font-size: 0.8rem;
}

/* ─── Loading ─── */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 200;
    transition: opacity 0.4s;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 1rem;
}

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

.loading-overlay p {
    color: var(--text-dim);
    font-size: 0.9rem;
}

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

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

.same-dot {
    color: var(--text-muted);
}

.badge-up {
    background: rgba(52, 211, 153, 0.15);
    color: var(--green);
    border-radius: 4px;
    padding: 0.1rem 0.4rem;
    font-size: 0.78rem;
    font-weight: 600;
}

.badge-down {
    background: rgba(248, 113, 113, 0.15);
    color: var(--red);
    border-radius: 4px;
    padding: 0.1rem 0.4rem;
    font-size: 0.78rem;
    font-weight: 600;
}

.badge-same {
    color: var(--text-dim);
    font-size: 0.78rem;
}

/* ─── Responsive ─── */
@media (max-width: 640px) {
    html {
        font-size: 14px;
    }

    .tabs {
        overflow-x: auto;
    }

    .tab {
        padding: 0.8rem 0.8rem;
        font-size: 0.82rem;
    }

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

    .content {
        padding: 1rem;
    }

    .stat-card {
        min-width: 90px;
    }
}

/* ─── Race Animation ─── */
.race-search-row {
    margin-bottom: 0.5rem;
}

.race-search-row input {
    width: 100%;
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-input);
    color: var(--text);
    font-size: 0.95rem;
    font-family: var(--font);
}

.race-suggestions {
    max-height: 260px;
    overflow-y: auto;
}

.race-sug-item {
    padding: 0.5rem 0.8rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background 0.15s;
}

.race-sug-item:hover {
    background: var(--bg-card-hover);
}

.race-sug-item.disabled {
    opacity: 0.4;
    pointer-events: none;
}

.race-sug-meta {
    color: var(--text-dim);
    font-size: 0.8rem;
}

.race-sug-empty {
    padding: 0.5rem 0.8rem;
    color: var(--text-dim);
}

.race-selected {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.race-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.6rem;
    border-radius: 100px;
    border: 2px solid;
    background: rgba(255, 255, 255, 0.04);
    font-size: 0.82rem;
}

.race-tag-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.race-tag-name {
    font-weight: 600;
}

.race-tag-meta {
    color: var(--text-dim);
    font-size: 0.75rem;
}

.race-tag-remove {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0 0.2rem;
    line-height: 1;
}

.race-tag-remove:hover {
    color: var(--red);
}

.race-canvas-wrap {
    width: 100%;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: #0d1117;
}

.race-canvas-wrap canvas {
    display: block;
    width: 100%;
}

.race-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.race-play-btn {
    min-width: 110px;
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
}

.race-speed-btn {
    min-width: 50px;
    font-size: 0.85rem;
    padding: 0.5rem 0.8rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-input);
    color: var(--text);
    cursor: pointer;
    font-family: var(--font);
    font-weight: 600;
}

.race-speed-btn:hover {
    background: var(--bg-card-hover);
}

.race-clock {
    font-family: var(--mono);
    font-size: 0.95rem;
    color: var(--text);
    min-width: 70px;
}

.race-slider {
    flex: 1;
    min-width: 120px;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    outline: none;
    cursor: pointer;
}

.race-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    cursor: grab;
    border: 2px solid var(--bg-card);
    box-shadow: 0 0 6px var(--accent-glow);
}

.race-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    cursor: grab;
    border: 2px solid var(--bg-card);
}

.race-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.5rem;
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.race-legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
}

.race-legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.race-legend-label {
    font-weight: 500;
}

.race-legend-time {
    color: var(--text-dim);
    font-family: var(--mono);
    font-size: 0.8rem;
}