:root {
    --bg: #0f1319;
    --panel: #171d26;
    --panel-2: #1e2632;
    --line: #2a3442;
    --text: #e6edf5;
    --muted: #8ba0b8;
    --accent: #4da3ff;
    --ok: #3ecf8e;
    --warn: #ffb454;
    --bad: #ff6b6b;
    --radius: 12px;
}

* { box-sizing: border-box; }

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

.app { min-height: 100vh; }

/* ---------- login ---------- */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}
.login-card {
    width: 100%;
    max-width: 360px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px;
}
.login-card h1 { margin: 0 0 4px; font-size: 20px; }
.login-card p.sub { margin: 0 0 20px; color: var(--muted); font-size: 13px; }

label { display: block; font-size: 13px; color: var(--muted); margin: 14px 0 6px; }
input[type=text], input[type=password] {
    width: 100%;
    padding: 10px 12px;
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--text);
    font-size: 15px;
}
input:focus { outline: none; border-color: var(--accent); }

button {
    font: inherit;
    cursor: pointer;
    border-radius: 8px;
    border: 1px solid transparent;
    padding: 10px 16px;
}
.btn-primary {
    width: 100%;
    margin-top: 20px;
    background: var(--accent);
    color: #06121f;
    font-weight: 600;
}
.btn-primary:disabled { opacity: .6; cursor: default; }
.btn-ghost {
    background: transparent;
    border-color: var(--line);
    color: var(--muted);
    padding: 6px 12px;
    font-size: 13px;
}
.btn-ghost:hover { color: var(--text); border-color: var(--muted); }
.btn-ghost.active { color: var(--text); border-color: var(--accent); }

.error {
    margin-top: 14px;
    color: var(--bad);
    font-size: 13px;
    min-height: 18px;
}

/* ---------- shell ---------- */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 22px;
    border-bottom: 1px solid var(--line);
    background: var(--panel);
    position: sticky;
    top: 0;
    z-index: 5;
}
.brand { font-weight: 700; letter-spacing: .2px; }
.brand span { color: var(--muted); font-weight: 400; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.who { color: var(--muted); font-size: 13px; }

main { padding: 22px; max-width: 1100px; margin: 0 auto; }

.crumb {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
h2 { margin: 0; font-size: 18px; }

/* ---------- project cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 18px;
    cursor: pointer;
    transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent); transform: translateY(-1px); }
.card h3 { margin: 0 0 4px; font-size: 16px; }
.card .kind { color: var(--muted); font-size: 13px; margin-bottom: 12px; }
.card .headline { font-size: 14px; }

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 7px; vertical-align: middle; }
.dot.on { background: var(--ok); box-shadow: 0 0 0 3px rgba(62,207,142,.15); }
.dot.off { background: var(--bad); box-shadow: 0 0 0 3px rgba(255,107,107,.15); }

/* ---------- tiles ---------- */
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-bottom: 22px; }
.tile {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 14px 16px;
}
.tile .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
.tile .value { font-size: 26px; font-weight: 700; margin-top: 6px; font-variant-numeric: tabular-nums; }
.tile .value.sm { font-size: 18px; }

.section-title { margin: 26px 0 12px; font-size: 14px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }

.banner {
    border-radius: var(--radius);
    padding: 12px 16px;
    margin-bottom: 18px;
    font-size: 14px;
    border: 1px solid;
}
.banner.bad { background: rgba(255,107,107,.08); border-color: rgba(255,107,107,.35); color: #ffc9c9; }
.banner.warn { background: rgba(255,180,84,.08); border-color: rgba(255,180,84,.35); color: #ffdca8; }

/* ---------- services table ---------- */
.table-wrap { overflow-x: auto; margin-bottom: 22px; }
.svc {
    width: 100%;
    border-collapse: collapse;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
}
.svc th, .svc td { text-align: left; padding: 11px 14px; font-size: 14px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.svc th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; font-weight: 600; }
.svc tr:last-child td { border-bottom: none; }
.svc td.num { text-align: right; font-variant-numeric: tabular-nums; }
/* A non-zero restart count is the thing worth noticing on this page. */
.svc td.alarm { color: var(--warn); font-weight: 600; }
.dot.unknown { background: var(--muted); box-shadow: 0 0 0 3px rgba(139,160,184,.15); }

/* ---------- charts ---------- */
.chart-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 16px 18px 10px;
    margin-bottom: 14px;
}
.chart-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 8px; }
.chart-head .t { font-size: 14px; font-weight: 600; }
.chart-head .peak { font-size: 12px; color: var(--muted); }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.ranges { display: flex; gap: 8px; margin-bottom: 14px; }

.empty { color: var(--muted); font-size: 14px; padding: 18px 0; }
.muted { color: var(--muted); }
.foot { color: var(--muted); font-size: 12px; margin-top: 22px; }

@media (max-width: 560px) {
    main { padding: 16px; }
    .topbar { padding: 12px 16px; }
    .tile .value { font-size: 22px; }
}