:root {
  --bg: #f7f7f4;
  --surface: #ffffff;
  --ink: #151515;
  --muted: #62645f;
  --line: #deded7;
  --accent: #0f766e;
  --soft: #edf7f4;
  --radius: 12px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}
header {
  border-bottom: 1px solid var(--line);
  background: rgba(247, 247, 244, 0.94);
  position: sticky;
  top: 0;
  z-index: 5;
}
.top, main {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
}
.top {
  padding: 16px 0;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 900; }
.mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, #111, #245c4f);
  font-weight: 900;
}
nav { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
nav a, .button {
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 800;
  background: var(--surface);
}
main { padding: 32px 0 52px; }
.hero, .card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 22px;
}
.hero { background: var(--soft); border-color: #cfe8e0; }
.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}
h1, h2, h3 { margin: 0; line-height: 1.15; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: 1.35rem; margin-bottom: 10px; }
p { color: var(--muted); margin: 8px 0 0; }
ol, ul { margin: 10px 0 0; padding-left: 22px; }
li { margin: 7px 0; color: var(--muted); }
strong { color: var(--ink); }
.pill-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.pill {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid #cfe8e0;
  background: #fff;
  color: #155e55;
  font-weight: 850;
}
footer {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}
@media (max-width: 760px) {
  .top { align-items: flex-start; flex-direction: column; }
  nav { justify-content: flex-start; }
  .grid { grid-template-columns: 1fr; }
}