:root {
  --teal-900: #004d40;
  --teal-700: #00695c;
  --teal-500: #00897b;
  --teal-200: #80cbc4;
  --teal-50: #e0f2f1;
  --coral: #ff8a65;
  --ink: #0d1b1a;
  --muted: #455a64;
  --bg: #f7faf9;
  --card: #ffffff;
  --radius: 16px;
  --shadow: 0 12px 40px rgba(0, 77, 64, 0.12);
  font-family: "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: radial-gradient(1200px 600px at 10% -10%, var(--teal-50), transparent),
              radial-gradient(900px 500px at 100% 0%, #fff3e0, transparent),
              var(--bg);
  line-height: 1.55;
}
a { color: var(--teal-700); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 1.25rem; }

header.hero {
  padding: 3rem 0 2rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem 2rem;
  align-items: center;
}
header.hero img.logo {
  width: 112px; height: 112px;
  filter: drop-shadow(var(--shadow));
}
header.hero h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--teal-900);
  letter-spacing: -0.02em;
}
header.hero .tag {
  margin: 0;
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 36rem;
}
.badges { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.badge {
  background: var(--card);
  border: 1px solid var(--teal-200);
  color: var(--teal-900);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.25rem 0 0; }
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
}
.btn-primary { background: var(--teal-900); color: #fff; }
.btn-primary:hover { background: var(--teal-700); }
.btn-ghost { background: transparent; color: var(--teal-900); border-color: var(--teal-200); }
.btn-ghost:hover { background: var(--teal-50); }

section { padding: 1.5rem 0 2rem; }
section h2 {
  color: var(--teal-900);
  font-size: 1.35rem;
  margin: 0 0 1rem;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0, 77, 64, 0.06);
}
.card h3 { margin: 0 0 0.4rem; font-size: 1.05rem; color: var(--teal-700); }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

pre.sample {
  background: #0d1b1a;
  color: #e0f2f1;
  padding: 1rem 1.2rem;
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.45;
  box-shadow: var(--shadow);
}
pre.sample .c { color: #80cbc4; }
pre.sample .s { color: #ffab91; }

footer {
  padding: 2rem 0 3rem;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--teal-200);
  margin-top: 1rem;
}
footer .brand { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.5rem; }
footer .brand img { width: 36px; height: 36px; }

@media (max-width: 640px) {
  header.hero { grid-template-columns: 1fr; text-align: left; }
}