:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #f59e0b;
  --accent-dark: #b45309;
  --soon: #334155;
  --radius: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--text);
  background:
    radial-gradient(ellipse at top, #1e3a5f 0%, transparent 55%),
    linear-gradient(160deg, #0f172a, #111827 60%, #1a1025);
}

.site-header {
  text-align: center;
  padding: 2.5rem 1rem 1.5rem;
}

.site-header h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: 0.04em;
  color: var(--accent);
}

.site-header p {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

.coins-total {
  margin-top: 0.85rem !important;
  font-family: system-ui, sans-serif;
  font-size: 1.05rem;
  color: var(--text) !important;
}

.coins-total strong {
  color: #fbbf24;
  font-variant-numeric: tabular-nums;
}

.coins-hint {
  margin: 0.35rem 0 0 !important;
  font-family: system-ui, sans-serif;
  font-size: 0.82rem !important;
  color: var(--muted) !important;
}

.card__earned {
  margin-top: 0.75rem !important;
  font-family: system-ui, sans-serif;
  font-size: 0.85rem !important;
  color: #cbd5e1 !important;
}

.card__earned strong {
  color: #fbbf24;
  font-variant-numeric: tabular-nums;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem 1.25rem 3rem;
}

.card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--panel);
  border: 2px solid transparent;
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  min-height: 140px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.card--active {
  border-color: var(--accent);
  cursor: pointer;
}

.card--active:hover {
  transform: translateY(-3px);
  border-color: #fbbf24;
}

.card--soon {
  background: var(--soon);
  opacity: 0.7;
  cursor: not-allowed;
}

.card__badge {
  display: inline-block;
  margin-bottom: 0.6rem;
  padding: 0.15rem 0.55rem;
  font-size: 0.75rem;
  font-family: system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #111;
  background: var(--accent);
  border-radius: 999px;
}

@media (max-width: 700px) {
  .grid {
    grid-template-columns: 1fr;
  }
}