:root {
  color-scheme: light;
  --bg: #f7f7f4;
  --paper: #ffffff;
  --ink: #171717;
  --muted: #5f6368;
  --line: #deded7;
  --accent: #0f766e;
  --accent-soft: #e7f5f2;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.shell {
  width: min(1040px, calc(100% - 40px));
  margin: 0 auto;
  padding: 42px 0 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

.mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: white;
  font-weight: 900;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
  font-size: 14px;
}

.hero {
  padding: 42px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

h1 {
  max-width: 820px;
  margin: 18px 0 14px;
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin: 32px 0 10px;
  font-size: 24px;
  line-height: 1.25;
}

h3 {
  margin: 22px 0 8px;
  font-size: 18px;
}

p {
  margin: 0 0 14px;
}

.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.card {
  min-height: 145px;
  padding: 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.card h2,
.card h3 {
  margin-top: 0;
}

.doc {
  padding: 36px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.meta {
  color: var(--muted);
  font-size: 14px;
}

.notice {
  margin: 22px 0;
  padding: 14px 16px;
  background: var(--accent-soft);
  border: 1px solid #bfe7de;
  border-radius: 8px;
}

ul {
  padding-left: 22px;
}

li {
  margin-bottom: 8px;
}

.footer {
  padding-top: 34px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 24px, 1040px);
    padding-top: 24px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    justify-content: flex-start;
  }

  .hero,
  .doc {
    padding: 24px;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}