:root {
    color-scheme: light;
    --page: #f9f9f7;
    --surface-1: #fcfcfb;
    --surface-2: #f0efec;
    --text-primary: #0b0b0b;
    --text-secondary: #52514e;
    --text-muted: #898781;
    --grid: #e1e0d9;
    --axis: #c3c2b7;
    --border: rgba(11, 11, 11, 0.1);
    --accent: #2a78d6;
    --series-1: #2a78d6;
    --series-2: #eb6834;
    --good: #0ca30c;
    --warning: #fab219;
    --critical: #d03b3b;
    --radius: 14px;
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
        --page: #0d0d0d;
        --surface-1: #1a1a19;
        --surface-2: #262624;
        --text-primary: #ffffff;
        --text-secondary: #c3c2b7;
        --grid: #2c2c2a;
        --axis: #383835;
        --border: rgba(255, 255, 255, 0.1);
        --accent: #3987e5;
        --series-1: #3987e5;
        --series-2: #d95926;
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
    -webkit-tap-highlight-color: transparent;
    background: var(--page);
    color: var(--text-primary);
    line-height: 1.4;
    -webkit-text-size-adjust: 100%;
}

a {
    color: var(--accent);
}

button,
input {
    font: inherit;
}

.wrap {
    max-width: 1180px;
    margin: 0 auto;
    padding: 20px 16px 48px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 650;
    font-size: 18px;
    color: var(--text-primary);
    text-decoration: none;
}

.brand img {
    width: 28px;
    height: 28px;
}

.card {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
}

.card h2 {
    margin: 0 0 12px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

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

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 10px 18px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--text-primary);
    cursor: pointer;
    text-decoration: none;
    font-weight: 550;
}

.btn:hover {
    filter: brightness(0.97);
}

.btn.primary {
    background: var(--accent);
    border-color: transparent;
    color: #fff;
}

.btn:disabled {
    opacity: 0.5;
    cursor: default;
}

.pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--surface-2);
    color: var(--text-secondary);
    font-size: 13px;
    white-space: nowrap;
}

.pill::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
}

.pill[data-state="good"]::before {
    background: var(--good);
}

.pill[data-state="warning"]::before {
    background: var(--warning);
}

.pill[data-state="critical"]::before {
    background: var(--critical);
}

.pill.plain::before {
    display: none;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
    margin-bottom: 12px;
}

.stat .label {
    font-size: 13px;
    color: var(--text-secondary);
}

.stat .value {
    font-size: 34px;
    font-weight: 650;
    letter-spacing: -0.02em;
    margin: 2px 0;
}

.stat .hint {
    font-size: 13px;
    color: var(--text-muted);
    min-height: 1.4em;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 12px;
}

.grid .wide {
    grid-column: 1 / -1;
}

table.kv {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

table.kv th,
table.kv td {
    padding: 6px 4px;
    border-bottom: 1px solid var(--grid);
    text-align: left;
    vertical-align: top;
}

table.kv th {
    color: var(--text-secondary);
    font-weight: 500;
    width: 45%;
}

table.kv td {
    font-variant-numeric: tabular-nums;
}

.center-screen {
    min-height: 70vh;
    display: grid;
    place-items: center;
    text-align: center;
}

.code-input {
    width: 7.5ch;
    font-size: 48px;
    font-weight: 650;
    letter-spacing: 0.25em;
    text-align: center;
    padding: 8px 0 8px 0.25em;
    border-radius: 12px;
    border: 2px solid var(--border);
    background: var(--surface-1);
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.code-input:focus {
    outline: none;
    border-color: var(--accent);
}

.error {
    color: var(--critical);
    min-height: 1.4em;
}

.hidden {
    display: none !important;
}

@media (max-width: 640px) {
    .wrap {
        padding: 12px 12px 32px;
    }

    .topbar {
        margin-bottom: 12px;
        gap: 8px;
    }

    .brand {
        font-size: 16px;
    }

    .pills {
        gap: 6px;
    }

    .pill {
        font-size: 12px;
        padding: 3px 8px;
    }

    .card {
        padding: 12px;
    }

    .center-screen {
        min-height: 60vh;
    }
}