:root {
  color-scheme: light;
  --ink: #173042;
  --muted: #536875;
  --brand: #126b5d;
  --brand-dark: #0b4d43;
  --paper: #ffffff;
  --wash: #edf8f4;
  --line: #cdded8;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(145deg, #e6f7f1 0%, #f9f6e8 62%, #edf3ff 100%);
  font: 17px/1.65 system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { width: min(900px, calc(100% - 32px)); margin: 48px auto; }
.card {
  background: rgb(255 255 255 / 94%);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: clamp(24px, 5vw, 56px);
  box-shadow: 0 18px 60px rgb(29 73 64 / 12%);
}
.brand { display: flex; align-items: center; gap: 14px; font-weight: 750; color: var(--brand-dark); }
.brand img { width: 54px; height: 54px; border-radius: 14px; }
h1 { margin: 28px 0 8px; line-height: 1.15; font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { margin-top: 34px; line-height: 1.25; }
p, li { color: var(--muted); }
a { color: var(--brand-dark); text-underline-offset: 3px; }
.button {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 14px;
  background: var(--brand);
  color: white;
  font-weight: 700;
  text-decoration: none;
}
.note { padding: 14px 18px; border-left: 5px solid var(--brand); background: var(--wash); border-radius: 12px; }
footer { margin-top: 36px; color: var(--muted); font-size: .95rem; }
@media (max-width: 600px) { main { margin: 16px auto; } .card { border-radius: 20px; } }