/* Palette per the dataviz skill's reference instance (references/palette.md) —
   categorical slots assigned in fixed order, status colors reserved and never
   reused for series identity. */
:root {
    color-scheme: light;
    --surface-1: #fcfcfb;
    --page: #f9f9f7;
    --text-primary: #0b0b0b;
    --text-secondary: #52514e;
    --text-muted: #898781;
    --gridline: #e1e0d9;
    --baseline: #c3c2b7;
    --border: rgba(11, 11, 11, 0.10);

    --series-cpu: #2a78d6;    /* categorical slot 1 blue */
    --series-mem: #eb6834;    /* slot 2 orange */
    --series-swap: #e34948;   /* slot 8 red */
    --series-disk: #1baf7a;   /* slot 3 aqua */
    --series-net-rx: #eda100; /* slot 4 yellow */
    --series-net-tx: #4a3aa7; /* slot 7 violet */

    --status-good: #0ca30c;
    --status-warning: #fab219;
    --status-serious: #ec835a;
    --status-critical: #d03b3b;
}

@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
        --surface-1: #1a1a19;
        --page: #0d0d0d;
        --text-primary: #ffffff;
        --text-secondary: #c3c2b7;
        --text-muted: #898781;
        --gridline: #2c2c2a;
        --baseline: #383835;
        --border: rgba(255, 255, 255, 0.10);

        --series-cpu: #3987e5;
        --series-mem: #d95926;
        --series-swap: #e66767;
        --series-disk: #199e70;
        --series-net-rx: #c98500;
        --series-net-tx: #9085e9;

        --status-good: #0ca30c;
        --status-warning: #fab219;
        --status-serious: #ec835a;
        --status-critical: #e66767;
    }
}

* { box-sizing: border-box; }

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

a { color: var(--series-cpu); }

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

/* Login page */
body.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}
.login-card {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem 2.5rem;
    width: 100%;
    max-width: 340px;
}
.login-card h1 { font-size: 1.25rem; margin: 0 0 0.25rem; }
.login-card form { display: flex; flex-direction: column; gap: 0.9rem; margin-top: 1.25rem; }
.login-card label { display: flex; flex-direction: column; gap: 0.35rem; font-size: 0.85rem; color: var(--text-secondary); }
.login-card input {
    font-size: 1rem;
    padding: 0.5rem 0.6rem;
    border-radius: 6px;
    border: 1px solid var(--baseline);
    background: var(--page);
    color: var(--text-primary);
}
.login-card button {
    margin-top: 0.25rem;
    padding: 0.6rem;
    border-radius: 6px;
    border: none;
    background: var(--series-cpu);
    color: #fff;
    font-size: 0.95rem;
    cursor: pointer;
}
.flash-error {
    background: color-mix(in srgb, var(--status-critical) 15%, transparent);
    border: 1px solid var(--status-critical);
    color: var(--status-critical);
    padding: 0.5rem 0.7rem;
    border-radius: 6px;
    font-size: 0.85rem;
    margin-top: 0.75rem;
}

/* Dashboard shell */
.app-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface-1);
}
.app-header h1 { font-size: 1.1rem; margin: 0; }
.app-header .right { display: flex; align-items: center; gap: 1rem; font-size: 0.85rem; }

main.dashboard { padding: 1.25rem 1.5rem 3rem; max-width: 1400px; margin: 0 auto; }

.range-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}
.range-controls button {
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    border: 1px solid var(--baseline);
    background: var(--surface-1);
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
}
.range-controls button.active {
    background: var(--series-cpu);
    border-color: var(--series-cpu);
    color: #fff;
}

.stat-tiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}
.stat-tile {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.85rem 1rem;
}
.stat-tile .label { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.stat-tile .value { font-size: 1.5rem; margin-top: 0.15rem; font-variant-numeric: tabular-nums; }
.stat-tile .sub { font-size: 0.75rem; color: var(--text-secondary); margin-top: 0.1rem; }

.badge { display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.78rem; padding: 0.15rem 0.5rem; border-radius: 999px; }
.badge.good { color: var(--status-good); background: color-mix(in srgb, var(--status-good) 14%, transparent); }
.badge.down { color: var(--status-critical); background: color-mix(in srgb, var(--status-critical) 14%, transparent); }
.badge.warning { color: var(--status-warning); background: color-mix(in srgb, var(--status-warning) 16%, transparent); }
.badge.serious { color: var(--status-serious); background: color-mix(in srgb, var(--status-serious) 16%, transparent); }
.badge.critical { color: var(--status-critical); background: color-mix(in srgb, var(--status-critical) 14%, transparent); }
.badge.info { color: var(--text-secondary); background: color-mix(in srgb, var(--text-secondary) 12%, transparent); }

.chart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.chart-card {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.9rem 1rem 0.5rem;
    overflow-x: auto;
}
.chart-card h2 { font-size: 0.9rem; margin: 0 0 0.5rem; color: var(--text-secondary); }
.chart-legend { display: flex; gap: 1rem; font-size: 0.78rem; color: var(--text-secondary); margin-top: 0.3rem; }
.chart-legend .swatch { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 0.3rem; vertical-align: middle; }

.overview-card { margin-bottom: 1.5rem; }
.overview-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}
.overview-header h2 { margin: 0; }
.series-toggles { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.series-toggles button {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.65rem;
    border-radius: 999px;
    border: 1px solid var(--baseline);
    background: transparent;
    color: var(--text-muted);
    font-size: 0.78rem;
    cursor: pointer;
    opacity: 0.55;
}
.series-toggles button.active { color: var(--text-primary); border-color: var(--text-secondary); opacity: 1; }
.series-toggles .swatch { display: inline-block; width: 9px; height: 9px; border-radius: 50%; }

.events-card {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem 1.25rem;
    overflow-x: auto;
}
.events-card h2 { font-size: 0.9rem; margin: 0 0 0.75rem; color: var(--text-secondary); }
table.events { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
table.events th { text-align: left; color: var(--text-muted); font-weight: 500; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.03em; padding-bottom: 0.5rem; border-bottom: 1px solid var(--gridline); }
table.events td { padding: 0.45rem 0.6rem 0.45rem 0; border-bottom: 1px solid var(--gridline); vertical-align: top; font-variant-numeric: tabular-nums; }
table.events tr:last-child td { border-bottom: none; }

/* uPlot overrides so it inherits the app's ink/surface tokens */
.u-wrap { color: var(--text-secondary); }
.uplot { font-family: inherit; }

/* Mobile — tuned against a 440x941 viewport (iPhone Pro Max class). Grid
   auto-fit already collapses to one column once the container is narrower
   than a track's minmax minimum, but sizing/spacing still needs tightening
   for touch use. */
@media (max-width: 600px) {
    .app-header { padding: 0.65rem 0.85rem; gap: 0.5rem; }
    .app-header h1 { font-size: 0.95rem; }
    .app-header .right { font-size: 0.75rem; gap: 0.6rem; }

    main.dashboard { padding: 0.85rem 0.65rem 2rem; }

    .range-controls { gap: 0.4rem; margin-bottom: 1rem; }
    .range-controls button { padding: 0.35rem 0.65rem; font-size: 0.75rem; }

    .stat-tiles { grid-template-columns: repeat(2, 1fr); gap: 0.6rem; margin-bottom: 1rem; }
    .stat-tile { padding: 0.65rem 0.75rem; }
    .stat-tile .value { font-size: 1.15rem; }

    .chart-grid { grid-template-columns: 1fr; gap: 0.75rem; margin-bottom: 1rem; }
    .chart-card { padding: 0.7rem 0.75rem 0.4rem; }
    .chart-card h2 { font-size: 0.82rem; }

    .overview-card { margin-bottom: 1rem; }
    .series-toggles button { padding: 0.25rem 0.5rem; font-size: 0.72rem; }

    .events-card { padding: 0.75rem 0.85rem; -webkit-overflow-scrolling: touch; }
    table.events { font-size: 0.75rem; }
    table.events th { font-size: 0.65rem; }
    table.events td { padding: 0.35rem 0.4rem 0.35rem 0; }

    .login-card { padding: 1.5rem 1.25rem; max-width: 300px; }
}