:root {
  --bg: #f8faf7;
  --ink: #13201c;
  --muted: #60716b;
  --line: #dce6df;
  --panel: #ffffff;
  --panel-soft: #edf5ef;
  --accent: #8779e8;
  --teal: #0f8f7a;
  --max: 920px;
}

* {
  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:
    radial-gradient(circle at top right, rgba(216, 242, 117, 0.28), transparent 34rem),
    radial-gradient(circle at left 18rem, rgba(135, 121, 232, 0.16), transparent 28rem),
    var(--bg);
  line-height: 1.6;
}

a {
  color: inherit;
}

.shell {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: white;
  font-size: 0.86rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 650;
}

.nav-links a {
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--ink);
}

.hero {
  padding: 44px 0 24px;
}

.eyebrow {
  color: var(--teal);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h1 {
  max-width: 760px;
  margin: 12px 0 0;
  font-size: clamp(2.25rem, 6vw, 4.4rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.intro {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.updated {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
}

.card {
  margin: 28px 0 56px;
  padding: clamp(20px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 18px 55px rgba(19, 32, 28, 0.08);
}

h2 {
  margin: 28px 0 8px;
  font-size: 1.28rem;
  line-height: 1.25;
}

h2:first-child {
  margin-top: 0;
}

p,
li {
  color: #344840;
}

p {
  margin: 0 0 14px;
}

ul {
  margin: 0 0 18px;
  padding-left: 22px;
}

strong {
  color: var(--ink);
}

.notice {
  margin: 18px 0;
  padding: 14px 16px;
  border: 1px solid #cdc2ff;
  border-radius: 14px;
  background: #f1edff;
  color: var(--ink);
}

footer {
  padding: 30px 0 44px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.94rem;
}

@media (max-width: 640px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 0;
  }

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