:root {
  --bg: #f7f7f5;
  --fg: #1c1d1f;
  --muted: #6b6e73;
  --accent: #2f7d6d;
  --card: #ffffff;
  --border: #e3e3df;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121315;
    --fg: #e8e8e6;
    --muted: #9a9ca1;
    --accent: #5cc2ab;
    --card: #1a1b1e;
    --border: #2a2c30;
  }
}

* { box-sizing: border-box; }

html, body { height: 100%; }

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

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1rem;
}

.mark {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  color: var(--accent);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  margin-bottom: 1.5rem;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0.5rem 0 1.75rem;
  color: var(--muted);
  font-size: 1.1rem;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--muted);
  font-size: 0.875rem;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  50% { opacity: 0.35; }
}

@media (prefers-reduced-motion: reduce) {
  .dot { animation: none; }
}

.links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  margin-top: 2rem;
}

.links a {
  color: var(--accent);
  text-decoration: none;
}

.links a:hover { text-decoration: underline; }

footer {
  padding: 1.5rem 1rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
}