:root {
  color-scheme: light dark;
  --bg: #0f172a;
  --panel: #111827;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #22c55e;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-family: Arial, Helvetica, sans-serif;
  background: radial-gradient(circle at top, #1e293b, var(--bg));
  color: var(--text);
}

.container {
  width: min(960px, 92vw);
  text-align: center;
}

.eyebrow {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  margin: 0;
}

.subtitle {
  color: var(--muted);
  margin-top: 0.6rem;
}

.countdown {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(90px, 1fr));
  gap: 0.9rem;
}

.time-card {
  background: color-mix(in srgb, var(--panel) 88%, white 12%);
  border: 1px solid #334155;
  border-radius: 0.8rem;
  padding: 1rem 0.5rem;
}

.value {
  display: block;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 700;
  line-height: 1;
}

.label {
  margin-top: 0.35rem;
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
}

.status {
  margin-top: 1rem;
  color: var(--accent);
  font-weight: 700;
}

@media (max-width: 600px) {
  .countdown {
    grid-template-columns: repeat(2, minmax(90px, 1fr));
  }
}