:root {
    --bg: #0f0f14;
    --bg-card: #1a1a24;
    --bg-card-hover: #22222f;
    --bg-chart-rest: #2e2e3e;
    --border: #2a2a3a;
    --text: #e0e0e8;
    --text-muted: #8888a0;
    --purple: #9b59b6;
    --purple-light: #c39bd3;
    --green: #2ecc71;
    --orange: #f39c12;
    --red: #e74c3c;
    --red-dark: #922b21;
    --blue: #3498db;
    color-scheme: light dark;
}

:root[data-theme="light"] {
    --bg: #f4f6fb;
    --bg-card: #ffffff;
    --bg-card-hover: #edf1f9;
    --bg-chart-rest: #d8deeb;
    --border: #d8deeb;
    --text: #1f2430;
    --text-muted: #5a6375;
    --purple: #7e42a6;
    --purple-light: #5e2e82;
    --green: #1f9d55;
    --orange: #d98200;
    --red: #c0392b;
    --red-dark: #8e2a20;
    --blue: #2f72cc;
    color-scheme: light;
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme]) {
        --bg: #f4f6fb;
        --bg-card: #ffffff;
        --bg-card-hover: #edf1f9;
        --bg-chart-rest: #d8deeb;
        --border: #d8deeb;
        --text: #1f2430;
        --text-muted: #5a6375;
        --purple: #7e42a6;
        --purple-light: #5e2e82;
        --green: #1f9d55;
        --orange: #d98200;
        --red: #c0392b;
        --red-dark: #8e2a20;
        --blue: #2f72cc;
        color-scheme: light;
    }
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

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

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    flex-wrap: wrap;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--purple-light);
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    flex: 1;
}

nav { display: flex; gap: 1rem; }

nav a {
    color: var(--purple-light);
    text-decoration: none;
    font-size: 0.85rem;
    opacity: 0.8;
    transition: opacity 0.2s;
}

nav a:hover { opacity: 1; }

main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* Stats Row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem;
    text-align: center;
}

.stat-card.purple { border-top: 3px solid var(--purple); }

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--purple-light);
}

.stat-detail {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--purple-light);
    margin-top: 0.25rem;
}

.stat-sparkline {
    margin-top: 0.5rem;
    height: 40px;
}

/* Section Headers */
.section {
    margin-bottom: 2rem;
}

.section h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

/* Gauge Grid */
.gauge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.gauge-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
}

.gauge-card h3 {
    font-size: 0.9rem;
    color: var(--text);
    text-align: center;
    margin-bottom: 0.75rem;
}

.gauge-pair {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.gauge-item {
    text-align: center;
}

.gauge-item canvas {
    max-width: 140px;
    margin: 0 auto;
}

.gauge-label {
    font-size: 0.8rem;
    color: var(--text);
    margin-top: 0.25rem;
}

/* Chart Row */
.chart-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
}

.chart-card h3 {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 0.75rem;
}

.pie-container {
    max-width: 350px;
    margin: 0 auto;
}

/* Table */
.table-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.table-controls {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.table-controls input {
    flex: 1;
    max-width: 400px;
    padding: 0.5rem 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 0.9rem;
}

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

.table-controls button,
.pagination button {
    padding: 0.5rem 1rem;
    background: var(--purple);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: opacity 0.2s;
}

.table-controls button:hover,
.pagination button:hover:not(:disabled) { opacity: 0.85; }

.pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.table-wrapper {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 8px;
}

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

thead {
    background: var(--bg-card);
    position: sticky;
    top: 0;
}

th {
    padding: 0.65rem 0.75rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}

th[data-sort] {
    cursor: pointer;
    user-select: none;
}

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

.sort-icon--active {
    font-style: normal;
    font-size: 0.75em;
    opacity: 0.85;
    color: var(--purple-light);
}

td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

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

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

#page-info {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--border);
}

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

/* Responsive */
@media (max-width: 768px) {
    .header-content { flex-direction: column; gap: 0.5rem; }
    .chart-row { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: 1fr 1fr; }
    .gauge-grid { grid-template-columns: 1fr 1fr; }
    main { padding: 1rem; }
}

@media (max-width: 480px) {
    .stats-row { grid-template-columns: 1fr; }
    .gauge-grid { grid-template-columns: 1fr; }
}