:root {
  --bg: #f4f1ea;
  --card: #ffffff;
  --text: #1d1d1f;
  --muted: #6b6b70;
  --border: rgba(0, 0, 0, 0.08);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.06), 0 8px 24px rgba(0, 0, 0, 0.06);
  --accent: #2f6fdf;
  --up: #2f9e44;
  --down: #e03131;
  --unknown: #adb5bd;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16171b;
    --card: #212329;
    --text: #f1f1f3;
    --muted: #a1a1aa;
    --border: rgba(255, 255, 255, 0.08);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.3);
    --accent: #6ea0ff;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
main { max-width: 640px; margin: 0 auto; padding: 40px 16px 32px; }
header h1 { font-size: 28px; line-height: 1.2; margin: 0 0 6px; letter-spacing: -0.01em; }
.lead { margin: 0 0 24px; color: var(--muted); }
.cards { display: grid; gap: 12px; }
.card {
  display: flex; align-items: center; gap: 16px;
  padding: 16px; min-height: 84px;
  background: var(--card); color: inherit; text-decoration: none;
  border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.card:hover { transform: translateY(-1px); }
.card:active { transform: scale(0.99); }
.card:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.icon svg { width: 52px; height: 52px; display: block; }
.text { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.title { font-size: 19px; font-weight: 650; }
.subtitle { font-weight: 500; color: var(--muted); }
.desc { color: var(--muted); font-size: 14px; }
.status { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); white-space: nowrap; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--unknown); }
.status[data-status="up"] .dot { background: var(--up); }
.status[data-status="down"] .dot { background: var(--down); }
footer { margin-top: 28px; color: var(--muted); font-size: 13px; text-align: center; }
.message { text-align: center; padding-top: 18vh; }
.message h1 { font-size: 24px; }
.message p { color: var(--muted); }
.button {
  display: inline-block; margin-top: 8px; padding: 10px 18px; border-radius: 10px;
  background: var(--accent); color: #fff; text-decoration: none; font-weight: 600;
}
@media (max-width: 380px) {
  .status .label { display: none; }
  .icon svg { width: 44px; height: 44px; }
}