:root {
  --bg: #f6f7f9;
  --fg: #14181f;
  --muted: #4a5360;
  --card: #ffffff;
  --border: #d5dae1;
  --accent: #0b5cad;
  --ok-bg: #e3f4e8;
  --ok-fg: #0d5a26;
  --down-bg: #fde7e7;
  --down-fg: #8a1212;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1318;
    --fg: #eef1f5;
    --muted: #aab3c0;
    --card: #181e26;
    --border: #2c3542;
    --accent: #7db7f2;
    --ok-bg: #123a20;
    --ok-fg: #9be3b2;
    --down-bg: #4a1818;
    --down-fg: #ffb4b4;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
}

.skip-link {
  position: absolute;
  left: -999px;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
  background: var(--card);
  padding: 0.5rem 0.75rem;
  border: 2px solid var(--accent);
  z-index: 10;
}

.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1rem;
}
.brand { font-weight: 700; letter-spacing: 0.04em; }

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

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

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
}

.status-list { list-style: none; margin: 0.75rem 0 0; padding: 0; display: grid; gap: 0.5rem; }
.status-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.badge { font-weight: 600; padding: 0.125rem 0.625rem; border-radius: 999px; font-size: 0.875rem; }
.badge.up { background: var(--ok-bg); color: var(--ok-fg); }
.badge.down { background: var(--down-bg); color: var(--down-fg); }

a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }