:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --ink: #16191d;
  --muted: #5b6168;
  --line: #e4e1da;
  --accent: #0f6e63;
  --accent-ink: #ffffff;
  --accent-soft: #e3f1ee;
  --max: 980px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* header */
.top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 0;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ink); font-weight: 600; letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }
.brand svg { width: 26px; height: 26px; }
.nav { display: flex; gap: 22px; font-size: 15px; }
.nav a { color: var(--muted); }
.nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.nav a:hover { color: var(--ink); text-decoration: none; }

/* hero */
.hero { padding: 56px 0 36px; }
.hero h1 {
  font-size: clamp(34px, 5.2vw, 54px);
  line-height: 1.08; letter-spacing: -0.025em;
  margin: 0 0 18px; max-width: 14ch;
}
.hero p.lead {
  font-size: clamp(18px, 2.1vw, 21px);
  color: var(--muted); max-width: 58ch; margin: 0 0 28px;
}
.kicker {
  display: inline-block; font-size: 13px; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px;
}

.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 11px 18px; border-radius: 8px;
  font-weight: 600; font-size: 15px; border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: #0b5a51; }
.btn-ghost { border-color: var(--line); color: var(--ink); background: var(--surface); }
.btn-ghost:hover { border-color: var(--ink); }

/* sections */
section { padding: 40px 0; border-top: 1px solid var(--line); }
section h2 {
  font-size: 15px; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--muted); margin: 0 0 22px;
}
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid h3 { font-size: 19px; margin: 0 0 8px; letter-spacing: -0.01em; }
.grid p { margin: 0; color: var(--muted); font-size: 16px; }

.rules { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 14px 28px; }
.rules li { padding-left: 22px; position: relative; color: var(--muted); font-size: 16px; }
.rules li::before {
  content: ""; position: absolute; left: 0; top: 10px;
  width: 10px; height: 2px; background: var(--accent);
}
.rules li strong { color: var(--ink); font-weight: 600; }

.stack { color: var(--muted); font-size: 15px; }
.stack span { display: inline-block; padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px; margin: 0 6px 8px 0; background: var(--surface); }

.prose { max-width: 62ch; }
.prose p { margin: 0 0 16px; }
.prose p.lead { font-size: 19px; color: var(--muted); }

.note {
  background: var(--accent-soft); border-radius: 10px; padding: 18px 20px;
  color: var(--ink); max-width: 62ch;
}
.note strong { color: var(--accent); }

.status {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; color: var(--muted); margin-bottom: 14px;
}
.status::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
}

.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { padding: 14px 0; border-top: 1px solid var(--line); display: flex; gap: 16px; flex-wrap: wrap; align-items: baseline; }
.contact-list li:last-child { border-bottom: 1px solid var(--line); }
.contact-list .label { width: 110px; color: var(--muted); font-size: 14px; }

footer {
  border-top: 1px solid var(--line); padding: 28px 0 44px;
  color: var(--muted); font-size: 14px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}

@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; gap: 22px; }
  .rules { grid-template-columns: 1fr; }
  .hero { padding: 36px 0 28px; }
  .nav { gap: 16px; font-size: 14px; }
  .brand span { display: none; }
}