:root {
    color-scheme: light;
    --surface-1: #fcfcfb;
    --surface-page: #f9f9f7;
    --text-primary: #0b0b0b;
    --text-secondary: #52514e;
    --text-muted: #898781;
    --gridline: #e1e0d9;
    --border: rgba(11, 11, 11, 0.10);
    --series-1: #2a78d6;
    --series-2: #1baf7a;
    --series-3: #eda100;
    --series-4: #4a3aa7;
    --status-good: #0ca30c;
    --status-warning: #fab219;
    --status-critical: #d03b3b;
}

@media (prefers-color-scheme: dark) {
    :root:where(:not([data-theme="light"])) {
        color-scheme: dark;
        --surface-1: #1a1a19;
        --surface-page: #0d0d0d;
        --text-primary: #ffffff;
        --text-secondary: #c3c2b7;
        --text-muted: #898781;
        --gridline: #2c2c2a;
        --border: rgba(255, 255, 255, 0.10);
        --series-1: #3987e5;
        --series-2: #199e70;
        --series-3: #c98500;
        --series-4: #9085e9;
        --status-good: #0ca30c;
        --status-warning: #fab219;
        --status-critical: #e66767;
    }
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --surface-1: #1a1a19;
    --surface-page: #0d0d0d;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --gridline: #2c2c2a;
    --border: rgba(255, 255, 255, 0.10);
    --series-1: #3987e5;
    --series-2: #199e70;
    --series-3: #c98500;
    --series-4: #9085e9;
    --status-good: #0ca30c;
    --status-warning: #fab219;
    --status-critical: #e66767;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    background: var(--surface-page);
    color: var(--text-primary);
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    padding: 20px 28px;
    border-bottom: 1px solid var(--border);
    background: var(--surface-1);
}

.topbar-title h1 {
    margin: 0;
    font-size: 1.25rem;
}

.subtitle {
    margin: 2px 0 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.topbar-status {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

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

.dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    display: inline-block;
}
.dot-ok { background: var(--status-good); }
.dot-warning { background: var(--status-warning); }
.dot-error { background: var(--status-critical); }
.dot-unknown { background: var(--text-muted); }

.btn-ghost {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-primary);
    border-radius: 6px;
    padding: 5px 12px;
    font-size: 0.85rem;
    cursor: pointer;
}
.btn-ghost:hover { background: var(--gridline); }

main {
    max-width: 1080px;
    margin: 0 auto;
    padding: 24px 28px 60px;
}

.servers-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.server-chip {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 5px 12px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.server-chip strong {
    color: var(--text-primary);
    font-weight: 600;
}

.error-banner {
    background: color-mix(in srgb, var(--status-critical) 12%, var(--surface-1));
    border: 1px solid var(--status-critical);
    color: var(--text-primary);
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
    margin-bottom: 28px;
}

.kpi-card {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-height: 88px;
}

.kpi-label {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.kpi-value {
    font-size: 1.6rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.kpi-value-sep {
    color: var(--text-muted);
    margin: 0 4px;
    font-weight: 400;
}

.panel {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 20px;
    overflow: hidden;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--gridline);
    flex-wrap: wrap;
}

.panel-header h2 {
    margin: 0;
    font-size: 1rem;
}

.down-count {
    color: var(--status-critical);
    font-weight: 400;
    font-size: 0.8rem;
}

.chart-hint {
    color: var(--text-muted);
    font-size: 0.78rem;
}

.chart-wrap {
    padding: 16px 18px;
}

.range-picker {
    display: flex;
    gap: 6px;
}

.range-btn {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    border-radius: 999px;
    padding: 4px 12px;
    font-size: 0.8rem;
    cursor: pointer;
}
.range-btn:hover { background: var(--gridline); }
.range-btn.active {
    background: var(--series-1);
    border-color: var(--series-1);
    color: #fff;
}

.custom-range-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 10px 18px;
    border-bottom: 1px solid var(--gridline);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.custom-range-row input {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 4px 8px;
    background: var(--surface-page);
    color: var(--text-primary);
    font-size: 0.85rem;
}

.map-wrap {
    height: 360px;
    width: 100%;
}

.geo-popup {
    font-size: 0.85rem;
}
.geo-popup strong { font-size: 0.95rem; }

#mount-filter {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 10px;
    background: var(--surface-page);
    color: var(--text-primary);
    font-size: 0.85rem;
}

.table-wrap { overflow-x: auto; }

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

th, td {
    text-align: left;
    padding: 9px 18px;
    border-bottom: 1px solid var(--gridline);
    white-space: nowrap;
}

th {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

tbody tr:hover { background: color-mix(in srgb, var(--series-1) 6%, transparent); }

.table-empty {
    color: var(--text-muted);
    white-space: normal;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
}
.status-pill .dot { width: 8px; height: 8px; }