/* MicroRTS LLM Competition - Dark Theme */

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --border: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent: #58a6ff;
    --accent-hover: #79c0ff;

    /* Grade colors */
    --grade-aplus: #ffd700;
    --grade-a: #3fb950;
    --grade-b: #58a6ff;
    --grade-c: #d29922;
    --grade-d: #f97583;
    --grade-f: #8b949e;

    /* Result colors */
    --win: #3fb950;
    --loss: #f85149;
    --draw: #d29922;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 2rem;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
}

header h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

nav {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: background 0.15s, color 0.15s;
}

nav a:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

nav a.tab.active {
    color: var(--text-primary);
    background: var(--bg-tertiary);
    font-weight: 500;
}

.nav-sep {
    color: var(--border);
    margin: 0 0.25rem;
}

/* Main */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
    flex: 1;
}

.tab-content {
    display: none;
}

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

h2 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* Toolbar: search + date filter on one line */
.toolbar {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.75rem;
    flex-wrap: nowrap;
}

.search-input {
    flex: 1 1 200px;
    min-width: 120px;
    padding: 0.4rem 0.65rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.85rem;
    outline: none;
    transition: border-color 0.15s;
}

.search-input:focus {
    border-color: var(--accent);
}

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

.date-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
    flex-shrink: 0;
}

.date-input {
    padding: 0.35rem 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.8rem;
    outline: none;
    color-scheme: dark;
    flex-shrink: 0;
}

.date-input:focus {
    border-color: var(--accent);
}

.btn-filter {
    background: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 6px;
    color: #000;
    cursor: pointer;
    padding: 0.35rem 0.75rem;
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1.2;
    flex-shrink: 0;
    transition: background 0.15s;
}

.btn-filter:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-clear {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.35rem 0.55rem;
    font-size: 0.85rem;
    line-height: 1;
    flex-shrink: 0;
    transition: background 0.15s, color 0.15s;
}

.btn-clear:hover {
    background: var(--border);
    color: var(--text-primary);
}

/* Result count */
.result-count {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 0.5rem;
    padding-left: 0.25rem;
}

/* Tables */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 6px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

thead {
    background: var(--bg-secondary);
}

th {
    padding: 0.65rem 0.75rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

/* Sortable column headers */
th[data-sort] {
    cursor: pointer;
    user-select: none;
    position: relative;
    padding-right: 1.4rem;
    transition: color 0.15s;
}

th[data-sort]:hover {
    color: var(--accent);
}

th[data-sort]::after {
    content: '\2195';
    position: absolute;
    right: 0.4rem;
    opacity: 0.3;
    font-size: 0.75rem;
}

th[data-sort].sort-asc::after {
    content: '\2191';
    opacity: 0.9;
    color: var(--accent);
}

th[data-sort].sort-desc::after {
    content: '\2193';
    opacity: 0.9;
    color: var(--accent);
}

td {
    padding: 0.55rem 0.75rem;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

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

tbody tr:hover {
    background: var(--bg-secondary);
}

/* Grade badges */
.grade {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.8rem;
    min-width: 2.2rem;
    text-align: center;
}

.grade-aplus { background: var(--grade-aplus); color: #000; }
.grade-a     { background: var(--grade-a); color: #000; }
.grade-b     { background: var(--grade-b); color: #000; }
.grade-c     { background: var(--grade-c); color: #000; }
.grade-d     { background: var(--grade-d); color: #000; }
.grade-f     { background: var(--grade-f); color: #000; }

/* Opponent result cells */
.result-win  { color: var(--win); font-weight: 500; }
.result-loss { color: var(--loss); font-weight: 500; }
.result-draw { color: var(--draw); font-weight: 500; }
.result-skip { color: var(--text-muted); }

/* Score column */
.score-cell {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

/* Rank column */
.rank-cell {
    color: var(--text-muted);
    font-weight: 500;
}

/* Date column */
.date-cell {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.date-cell .time-ago {
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* H2H matrix */
#h2h-table th,
#h2h-table td {
    text-align: center;
    min-width: 4rem;
}

#h2h-table th:first-child,
#h2h-table td:first-child {
    text-align: left;
    font-weight: 500;
}

.h2h-self {
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

/* Clickable table rows (leaderboard, benchmarks, history tables only) */
#leaderboard-table tbody tr,
#benchmarks-table tbody tr,
#history-table tbody tr {
    cursor: pointer;
    transition: background 0.15s;
}

tr.detail-row {
    cursor: default;
}

tr.detail-row td {
    padding: 0;
    border-bottom: 1px solid var(--border);
}

tr.detail-row:hover {
    background: inherit;
}

tr.active-row {
    background: var(--bg-secondary);
}

/* Detail panel (expanded below a clicked row) */
.detail-panel {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1rem 1.25rem;
    margin: 0.5rem 0.75rem;
}

.detail-panel h4 {
    margin: 0 0 0.75rem 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.game-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.game-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    min-width: 160px;
    flex: 0 1 auto;
}

.game-card .opponent-name {
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 0.35rem;
}

.game-card .result-badge {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.game-card .result-badge.badge-win { background: var(--win); color: #000; }
.game-card .result-badge.badge-loss { background: var(--loss); color: #000; }
.game-card .result-badge.badge-draw { background: var(--draw); color: #000; }
.game-card .result-badge.badge-skip { background: var(--bg-tertiary); color: var(--text-muted); }

.game-card .game-pts {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.replay-btn {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    background: var(--accent);
    color: #000;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.15s;
}

.replay-btn:hover {
    background: var(--accent-hover);
    text-decoration: none;
}

/* Per-map score chips in detail panel */
.map-scores-section {
    margin-bottom: 0.75rem;
}

.map-scores-section h5 {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
    font-weight: 500;
}

.map-score-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.map-score-chip {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.map-score-chip strong {
    color: var(--text-primary);
}

.map-score-chip .grade {
    font-size: 0.7rem;
    padding: 0.1rem 0.3rem;
    vertical-align: middle;
}

/* Source badge */
.source-badge {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    font-size: 0.75rem;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

/* Empty message */
.empty-msg {
    color: var(--text-muted);
    text-align: center;
    padding: 2rem;
    font-style: italic;
}

/* Footer */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 1.25rem 2rem;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

footer p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

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

footer a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

.generated-at {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

/* Content pages (submit, rules) */
.page-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.page-content h1 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.page-content h2 {
    font-size: 1.2rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.page-content h3 {
    font-size: 1rem;
    margin-top: 1.25rem;
    margin-bottom: 0.5rem;
}

.page-content p,
.page-content li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.page-content ul,
.page-content ol {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.page-content code {
    background: var(--bg-tertiary);
    padding: 0.15rem 0.35rem;
    border-radius: 4px;
    font-size: 0.85em;
    color: var(--accent);
}

.page-content pre {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1rem;
    overflow-x: auto;
    margin-bottom: 1rem;
}

.page-content pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

.page-content table {
    margin-bottom: 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
}

.back-link {
    display: inline-block;
    margin-bottom: 1rem;
    color: var(--accent);
    text-decoration: none;
    font-size: 0.9rem;
}

.back-link:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    header {
        padding: 1rem;
    }

    header h1 {
        font-size: 1.35rem;
    }

    main {
        padding: 1rem;
    }

    nav {
        gap: 0.25rem;
    }

    nav a {
        padding: 0.3rem 0.5rem;
        font-size: 0.8rem;
    }

    .page-content {
        padding: 1rem;
    }

    .toolbar {
        flex-wrap: wrap;
    }

    .search-input {
        flex-basis: 100%;
        min-width: 0;
    }
}