:root {
  --bg: #0f172a;
  --card: #111827;
  --text:s: #e5e7eb;
  --muted: #9ca3af;
  --accent: #38bdf8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: linear-gradient(180deg, #020617, #020617);
  color: #e5e7eb;
  line-height: 1.6;
}

.container {
  max-width: 900px;
  margin: auto;
  padding: 2rem 1rem;
}

header {
  text-align: center;
  padding-top: 4rem;
}

h1 {
  font-size: 2.2rem;
  margin-bottom: 0.3rem;
}

.tagline {
  color: #9ca3af;
  margin-bottom: 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  background: #38bdf8;
  color: #020617;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
}

section {
  margin-top: 3rem;
}

h2 {
  border-bottom: 1px solid #1f2933;
  padding-bottom: 0.4rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.6rem;
  list-style: none;
  padding: 0;
}

.grid li {
  background: #111827;
  padding: 0.6rem;
  border-radius: 6px;
  text-align: center;
}

.card {
  background: #111827;
  padding: 1rem;
  border-radius: 8px;
}

.muted {
  color: #9ca3af;
  font-size: 0.9rem;
}

.footer {
  text-align: center;
  color: #9ca3af;
  font-size: 0.85rem;
}