:root {
  color-scheme: light;
  --ink: #21324a;
  --water: #73c8d0;
  --water-deep: #438ea0;
  --cream: #f4efe7;
  --paper: #fbf8f3;
  --panel: #ffffff;
  --line: #d8d2c9;
  --muted: #667181;
  --gold: #d8a93e;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
}
a { color: var(--water-deep); }
.wrap { width: min(960px, calc(100% - 32px)); margin: 0 auto; }
header { border-bottom: 1px solid var(--line); background: rgba(251, 248, 243, 0.94); }
nav { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 76px; }
.brand { display: inline-flex; align-items: center; color: var(--ink); font-size: 22px; font-weight: 850; letter-spacing: 0.06em; text-decoration: none; }
.brand-pipe { position: relative; display: inline-block; width: 47px; height: 30px; margin-right: 10px; flex: 0 0 47px; }
.brand-pipe::before, .brand-pipe::after { box-sizing: border-box; }
.brand-pipe::before { content: ""; position: absolute; left: 0; top: 0; width: 30px; height: 30px; border: 4px solid var(--ink); border-radius: 50%; background: radial-gradient(circle, #fff7ec 0 4px, var(--ink) 5px 7px, #35d8e7 8px 13px, var(--ink) 14px 16px); }
.brand-pipe::after { content: ""; position: absolute; left: 27px; top: 9px; width: 20px; height: 12px; border-top: 4px solid var(--ink); border-bottom: 4px solid var(--ink); background: radial-gradient(circle at 72% 50%, #ffffff 0 1.5px, transparent 2px), linear-gradient(#35d8e7, #22c8dc); }
.links { display: flex; flex-wrap: wrap; gap: 18px; }
.links a { color: var(--muted); font-size: 14px; font-weight: 650; text-decoration: none; }
.links a:hover, .links a:focus-visible { color: var(--water-deep); }
.hero { padding: 76px 0 60px; text-align: center; }
.eyebrow { margin: 22px auto 6px !important; color: var(--water-deep) !important; font-size: 13px !important; font-weight: 800; letter-spacing: 0.18em; text-transform: uppercase; }
.hero h1 { margin: 0; font-size: clamp(50px, 10vw, 92px); line-height: 1.05; letter-spacing: 0.02em; }
.hero > p { max-width: 660px; margin: 18px auto 30px; color: var(--muted); font-size: 19px; }
.hero-logo { display: block; width: min(330px, 76vw); height: auto; margin: 0 auto 28px; border-radius: 28px; box-shadow: 0 18px 46px rgba(33, 50, 74, 0.13); }
.button { display: inline-block; padding: 13px 26px; border: 1px solid var(--ink); border-radius: 999px; background: var(--ink); color: white; font-weight: 750; text-decoration: none; box-shadow: 0 8px 24px rgba(33, 50, 74, 0.14); }
.button:hover, .button:focus-visible { background: var(--water-deep); border-color: var(--water-deep); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 18px 0 72px; }
.card, article { border: 1px solid var(--line); border-radius: 20px; background: var(--panel); padding: 26px; box-shadow: 0 10px 34px rgba(33, 50, 74, 0.05); }
.card { border-top: 5px solid var(--water); }
.card:nth-child(2) { border-top-color: var(--gold); }
.card h2 { margin-top: 0; font-size: 20px; }
.card p { margin-bottom: 0; color: var(--muted); }
article { margin: 38px auto 62px; padding: clamp(22px, 5vw, 44px); }
article h1 { margin-top: 0; font-size: clamp(34px, 6vw, 46px); }
article h2 { margin-top: 34px; font-size: 23px; }
article li { margin-bottom: 8px; }
code { padding: 2px 6px; border-radius: 5px; background: var(--cream); color: var(--ink); }
.muted { color: var(--muted); }
.notice { padding: 15px 17px; border-left: 4px solid var(--water); background: var(--cream); }
footer { padding: 29px 0 42px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; text-align: center; }
footer a { margin: 0 8px; }

@media (max-width: 680px) {
  nav { align-items: flex-start; flex-direction: column; padding: 18px 0; }
  .grid { grid-template-columns: 1fr; }
  .hero { padding-top: 54px; }
  .hero-logo { width: min(300px, 82vw); border-radius: 22px; }
  article { padding: 21px; }
}