:root {
  --bg: #0f172a;
  --card: #1e293b;
  --ink: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --ok: #4ade80;
  --warn: #fbbf24;
  --err: #f87171;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.card {
  width: min(92vw, 420px);
  background: var(--card);
  border: 1px solid #334155;
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.brand {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 18px;
}

.status {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 8px;
}

.detail {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 15px;
}

.ok .status { color: var(--ok); }
.warn .status { color: var(--warn); }
.err .status { color: var(--err); }

.hint {
  color: var(--muted);
  margin: 0;
}

.icon {
  font-size: 34px;
  margin-bottom: 10px;
}