:root {
    --bg: #f6f7f9;
    --surface: #ffffff;
    --border: #e3e6ea;
    --text: #1b1f24;
    --muted: #6b7480;
    --accent: #2563eb;
    --accent-soft: #dbe7fd;
    --ok: #15803d;
    --bad: #b91c1c;
    --shadow: 0 1px 2px rgba(16, 24, 40, 0.05);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1216;
        --surface: #171b21;
        --border: #262c35;
        --text: #e8ebef;
        --muted: #8b94a1;
        --accent: #6ea0ff;
        --accent-soft: #1d2d4d;
        --ok: #4ade80;
        --bad: #f87171;
        --shadow: none;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.topbar__inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.brand { margin: 0; font-size: 18px; font-weight: 650; letter-spacing: -0.01em; }

.topbar__right { display: flex; align-items: center; gap: 12px; }
.topbar__right form { margin: 0; }

.picker { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; }

select, .btn {
    font: inherit;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 7px 12px;
}

select { min-width: 140px; }
.btn { cursor: pointer; }
.btn:hover, select:hover { border-color: var(--accent); }
select:focus-visible, .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.page { max-width: 1100px; margin: 0 auto; padding: 24px 16px 48px; }

.status { color: var(--muted); margin: 0 0 16px; }
.status[data-kind="error"] { color: var(--bad); }
.status:empty { display: none; }

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 16px;
}

.stat, .card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.stat { padding: 16px 18px; display: flex; flex-direction: column; gap: 2px; }
.stat__label { color: var(--muted); font-size: 13px; }
.stat__value { font-size: 32px; font-weight: 650; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.stat__value--small { font-size: 20px; padding: 7px 0 6px; }
.stat__hint { color: var(--muted); font-size: 12px; min-height: 18px; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card { padding: 18px; min-width: 0; }
.card--wide { grid-column: 1 / -1; }
.card__title { margin: 0; font-size: 15px; font-weight: 650; }
.card__sub { margin: 2px 0 14px; color: var(--muted); font-size: 13px; }

.chart svg { width: 100%; height: auto; display: block; }
.chart .grid-line { stroke: var(--border); stroke-width: 1; }
.chart .axis-text { fill: var(--muted); font-size: 11px; }
.chart .line { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linejoin: round; }
.chart .area { fill: var(--accent-soft); opacity: 0.6; }
.chart .dot { fill: var(--accent); stroke: var(--surface); stroke-width: 2; }
.chart .dot--bad { fill: var(--surface); stroke: var(--bad); stroke-width: 2; }

.bars { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.bars__row { display: grid; grid-template-columns: 90px 1fr 48px; align-items: center; gap: 10px; }
.bars__name { font-weight: 550; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bars__track { height: 10px; background: var(--accent-soft); border-radius: 999px; overflow: hidden; }
.bars__fill { height: 100%; background: var(--accent); border-radius: 999px; }
.bars__count { text-align: right; font-variant-numeric: tabular-nums; color: var(--muted); }
.empty { color: var(--muted); font-size: 14px; }

.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { text-align: left; font-weight: 550; color: var(--muted); font-size: 12px; padding: 0 0 8px; }
.table td { padding: 8px 0; border-top: 1px solid var(--border); }
.num { text-align: right; font-variant-numeric: tabular-nums; }
th.num { text-align: right; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; border: 1px solid currentColor; }
.badge--ok { color: var(--ok); }
.badge--bad { color: var(--bad); }

@media (max-width: 760px) {
    .stats { grid-template-columns: 1fr; }
    .grid { grid-template-columns: 1fr; }
    .topbar__right { width: 100%; justify-content: space-between; }
}

/* Login page */
.login-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 16px;
}

.login {
    width: 100%;
    max-width: 360px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 28px 24px 24px;
}

.login__title { margin: 0; font-size: 20px; font-weight: 650; letter-spacing: -0.01em; }
.login__sub { margin: 4px 0 20px; color: var(--muted); font-size: 14px; }

.login__error {
    margin: 0 0 16px;
    padding: 9px 12px;
    border: 1px solid var(--bad);
    border-radius: 8px;
    color: var(--bad);
    font-size: 14px;
}

.login__form { display: grid; gap: 14px; }

.field { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }

.field input {
    font: inherit;
    font-size: 15px;
    color: var(--text);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 9px 12px;
}

.field input:hover { border-color: var(--accent); }
.field input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }

.btn--primary {
    margin-top: 4px;
    padding: 10px 12px;
    color: #fff;
    background: var(--accent);
    border-color: var(--accent);
    font-weight: 600;
}

.btn--primary:hover { filter: brightness(1.08); }

@media (prefers-color-scheme: dark) {
    .btn--primary { color: #0b1220; }
}