:root {
  --ink: #102536;
  --muted: #6f7d86;
  --paper: #fffdf8;
  --cream: #fff7ec;
  --line: rgba(20, 36, 50, 0.12);
  --coral: #ff674a;
  --teal: #2b9c9d;
  --white: #ffffff;
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
}

a {
  color: var(--teal);
  font-weight: 750;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.shell {
  width: min(900px, calc(100% - 36px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 248, 0.92);
  backdrop-filter: blur(16px);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 850;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
}

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

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

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

.hero {
  padding: 58px 0 34px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--coral);
  font-size: 0.88rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(2.45rem, 7vw, 5.2rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.updated {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.notice {
  margin-top: 26px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--coral);
  border-radius: 8px;
  background: var(--white);
  padding: 18px;
  color: var(--muted);
}

main {
  padding-bottom: 68px;
}

section {
  border-top: 1px solid var(--line);
  padding: 34px 0;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(1.45rem, 3vw, 2rem);
  line-height: 1.15;
  letter-spacing: 0;
}

h3 {
  margin: 22px 0 10px;
  font-size: 1.1rem;
  line-height: 1.2;
}

p {
  margin: 0 0 14px;
  color: var(--muted);
}

ul,
ol {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
}

li + li {
  margin-top: 8px;
}

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

dl {
  display: grid;
  grid-template-columns: minmax(150px, 0.35fr) minmax(0, 1fr);
  gap: 12px 22px;
  margin: 0;
}

dt {
  font-weight: 850;
}

dd {
  margin: 0;
  color: var(--muted);
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.card {
  min-height: 136px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 18px;
}

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

.footer {
  border-top: 1px solid var(--line);
  padding: 26px 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 14px;
}

@media (max-width: 720px) {
  .nav {
    min-height: 64px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 12px 0;
  }

  .nav-links {
    justify-content: flex-start;
    font-size: 0.88rem;
  }

  dl,
  .cards {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
  }

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