:root {
  --green: #2fb36b;
  --ink: #16201a;
  --muted: #5d6b62;
  --card: #f3f7f4;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #eef3ef; --muted: #a3b1a8; --card: #1c2420; }
  body { background: #0f1512; }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  color: var(--ink);
}
main, header, footer { max-width: 46rem; margin: 0 auto; padding: 0 1.25rem; }
header { padding-top: 3rem; text-align: center; }
header .icon {
  width: 88px; height: 88px; border-radius: 20px; margin: 0 auto 1rem;
  background: linear-gradient(135deg, #3ccf7d, #1b8f87);
  display: grid; place-items: center; color: white; font-size: 44px;
}
h1 { font-size: 2.2rem; margin: 0.2rem 0; }
h2 { font-size: 1.25rem; margin-top: 2rem; }
.tagline { color: var(--muted); font-size: 1.15rem; margin: 0.25rem 0 1.5rem; }
.badge {
  display: inline-block; padding: 0.7rem 1.3rem; border-radius: 12px;
  background: var(--ink); color: white; text-decoration: none; font-weight: 600;
}
@media (prefers-color-scheme: dark) { .badge { color: #0f1512; } }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); gap: 0.8rem; }
.card { background: var(--card); border-radius: 14px; padding: 1rem 1.1rem; }
.card h3 { margin: 0 0 0.3rem; font-size: 1rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.pro { border: 1px solid var(--green); }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
th, td { text-align: left; padding: 0.5rem; border-bottom: 1px solid var(--card); vertical-align: top; }
nav { text-align: center; margin: 1.5rem 0 0; }
nav a { color: var(--green); margin: 0 0.6rem; text-decoration: none; }
footer { color: var(--muted); font-size: 0.85rem; padding: 2.5rem 1.25rem 3rem; text-align: center; }
a { color: var(--green); }