:root {
  --bg: #0b0b0f;
  --fg: #f4f4f7;
  --muted: #8a8a9a;
  --accent: #f5a623;
  --card: #16161d;
  --card-hover: #1f1f29;
  --border: #2a2a36;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; min-height: 100%; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
}
main {
  min-height: 100dvh;
  max-width: 32rem;
  margin: 0 auto;
  padding: 4rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
h1 {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 0.25rem;
}
.tagline {
  color: var(--muted);
  margin: 0 0 2rem;
  letter-spacing: -0.01em;
}
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem 1rem;
  text-decoration: none;
  color: var(--fg);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  transition: background 0.15s, transform 0.05s;
  -webkit-tap-highlight-color: transparent;
  aspect-ratio: 1 / 1;
  justify-content: space-between;
}
.card:active {
  background: var(--card-hover);
  transform: scale(0.98);
}
.card .emoji {
  font-size: 2.5rem;
  line-height: 1;
}
.card .title {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.card .sub {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: -0.25rem;
}