/* ── CSS Variables (GitHub Dark Theme) ──────────────────────────────────── */
:root {
    --bg-primary: #0e1117;
    --bg-card: #161b22;
    --bg-card-alt: #0e1117;
    --border: #30363d;
    --border-subtle: #21262d;
    --text-primary: #e6edf3;
    --text-secondary: #c9d1d9;
    --text-muted: #8b949e;
    --text-disabled: #484f58;
    --accent-green: #4ade80;
    --accent-blue: #58a6ff;
    --accent-red: #f85149;
    --rising-green: #4CAF50;
    --falling-red: #F44336;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ── Reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-family: var(--font-family);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
}

/* ── Site Nav ──────────────────────────────────────────────────────────── */
.site-nav {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 8px 20px;
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}
.site-nav-brand {
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}
.site-nav-divider {
    width: 1px;
    height: 18px;
    background: var(--border);
}
.site-nav-link {
    text-decoration: none;
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}
.site-nav-link.active { color: var(--accent-green); }
.site-nav-link.disabled { color: var(--text-disabled); cursor: default; }

/* ── Page Nav ──────────────────────────────────────────────────────────── */
.page-nav {
    display: flex;
    gap: 8px;
    padding: 12px 20px;
    flex-wrap: wrap;
}
.page-nav-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    font-family: var(--font-family);
    transition: all 0.15s;
}
.page-nav-btn:hover { border-color: var(--text-muted); }
.page-nav-btn.active {
    background: var(--accent-red);
    border-color: var(--accent-red);
    color: #fff;
}
.refresh-btn { min-width: auto; padding: 8px 12px; }

.divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 0 20px;
}

/* ── Page Containers ───────────────────────────────────────────────────── */
.page-container {
    display: none;
    padding: 20px;
}
.page-container.active { display: block; }

/* ── Page Layout (filters + content) ───────────────────────────────────── */
.page-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 24px;
}
@media (max-width: 900px) {
    .page-layout {
        grid-template-columns: 1fr;
    }
}

/* ── Filter Panel ──────────────────────────────────────────────────────── */
.filter-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.filter-panel h3 {
    color: var(--text-primary);
    font-size: 16px;
    margin-bottom: 4px;
}
.filter-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.filter-group label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.filter-group select,
.filter-group input[type="date"],
.filter-group input[type="range"] {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 6px 8px;
    border-radius: 6px;
    font-size: 13px;
    font-family: var(--font-family);
    width: 100%;
}
.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: var(--accent-blue);
}
.filter-group select[multiple] {
    height: 120px;
}

/* Checkbox + radio toggle group */
.toggle-group {
    display: flex;
    gap: 4px;
}
.toggle-group button {
    flex: 1;
    padding: 6px 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-muted);
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    font-family: var(--font-family);
    transition: all 0.15s;
}
.toggle-group button.active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: #fff;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
}
.checkbox-group input[type="checkbox"] {
    accent-color: var(--accent-blue);
    width: 16px;
    height: 16px;
}
.checkbox-group label {
    text-transform: none;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
}

.slider-value {
    font-size: 13px;
    color: var(--accent-blue);
    font-weight: 600;
}

/* ── Filter Divider ────────────────────────────────────────────────────── */
.filter-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 4px 0;
}

/* ── Metric Cards ──────────────────────────────────────────────────────── */
.metrics-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}
.metric-card {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #2a2a4a;
}
.metric-card .metric-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.metric-card .metric-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

/* ── Content Area ──────────────────────────────────────────────────────── */
.content-area {
    min-width: 0; /* prevent grid blowout */
}

/* ── Section Headers ───────────────────────────────────────────────────── */
.section-header {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.section-caption {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

/* ── Movers Grid ───────────────────────────────────────────────────────── */
.movers-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}
@media (max-width: 700px) {
    .movers-grid { grid-template-columns: 1fr; }
}
.movers-col h3 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.movers-col .movers-caption {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.mover-entry {
    margin-bottom: 10px;
}
.mover-entry .mover-change {
    font-weight: 700;
    font-size: 1.15em;
}
.mover-entry .mover-change.rising { color: var(--rising-green); }
.mover-entry .mover-change.falling { color: var(--falling-red); }
.mover-entry .mover-name {
    font-weight: 600;
    color: var(--text-primary);
}
.mover-entry .mover-detail {
    font-size: 12px;
    color: var(--text-muted);
}

/* ── Player Selector ───────────────────────────────────────────────────── */
.player-selector {
    margin-bottom: 20px;
}
.player-selector label {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 6px;
}
.player-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}
.player-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    font-size: 12px;
    color: var(--text-secondary);
}
.player-chip .chip-color {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}
.player-chip .chip-remove {
    cursor: pointer;
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1;
}
.player-chip .chip-remove:hover { color: var(--accent-red); }

.player-search-wrapper {
    position: relative;
}
.player-search {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-family: var(--font-family);
    width: 100%;
    max-width: 400px;
}
.player-search:focus { outline: none; border-color: var(--accent-blue); }
.player-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-width: 400px;
    max-height: 250px;
    overflow-y: auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 6px 6px;
    z-index: 100;
    display: none;
}
.player-dropdown.visible { display: block; }
.player-dropdown-item {
    padding: 6px 12px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-secondary);
}
.player-dropdown-item:hover { background: var(--border-subtle); }
.player-dropdown-item .player-pos {
    color: var(--text-muted);
    font-size: 11px;
}

/* ── Charts ────────────────────────────────────────────────────────────── */
.chart-container {
    margin-bottom: 24px;
}

/* ── Collapsible sections ──────────────────────────────────────────────── */
.collapsible-header {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 10px 0;
    user-select: none;
}
.collapsible-header h3 {
    font-size: 15px;
    color: var(--text-primary);
}
.collapsible-arrow {
    font-size: 12px;
    color: var(--text-muted);
    transition: transform 0.2s;
}
.collapsible-header.open .collapsible-arrow {
    transform: rotate(90deg);
}
.collapsible-body {
    display: none;
}
.collapsible-body.open {
    display: block;
}

/* ── Data Tables ───────────────────────────────────────────────────────── */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
.data-table th {
    background: var(--bg-card);
    color: var(--text-muted);
    text-align: left;
    padding: 8px 10px;
    border-bottom: 2px solid var(--border);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: sticky;
    top: 0;
    z-index: 1;
}
.data-table td {
    padding: 6px 10px;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-secondary);
}
.data-table tr:hover td {
    background: var(--border-subtle);
}
.table-scroll {
    max-height: 500px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 6px;
}

/* ── Info / Empty State ────────────────────────────────────────────────── */
.info-msg {
    padding: 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

/* ── Loading Overlay ───────────────────────────────────────────────────── */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(14, 17, 23, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 999;
}
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
.loading-text {
    margin-top: 12px;
    color: var(--text-muted);
    font-size: 14px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Scrollbar ─────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-disabled); }