:root {
  --cream: #f7f0e2;
  --paper: #fffaf0;
  --ink: #231f1a;
  --muted: #6f665d;
  --moss: #556b52;
  --clay: #df6a2e;
  --line: rgba(35, 31, 26, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top, rgba(223, 106, 46, 0.09), transparent 28%),
    linear-gradient(180deg, #fffdf8 0%, #f6efe2 100%);
  font-family: "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.7;
}

a {
  color: var(--clay);
}

.shell {
  width: min(900px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 64px;
}

.hero {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 250, 240, 0.88);
  box-shadow: 0 14px 40px rgba(35, 31, 26, 0.07);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(85, 107, 82, 0.09);
  color: var(--moss);
  font-size: 14px;
  font-weight: 700;
}

h1 {
  margin: 18px 0 8px;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.06;
}

.lede {
  margin: 0;
  max-width: 720px;
  color: var(--muted);
  font-size: 17px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.card,
.section {
  margin-top: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.86);
}

.card h2,
.section h2 {
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 20px;
}

.card p,
.section p,
.section li {
  color: var(--muted);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
}

.nav a,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  text-decoration: none;
  font-weight: 700;
  background: var(--paper);
}

.button-primary {
  background: var(--clay);
  border-color: var(--clay);
  color: #fff7ef;
}

.meta {
  margin-top: 8px;
  font-size: 14px;
  color: var(--muted);
}

.footer {
  margin-top: 28px;
  font-size: 13px;
  color: var(--muted);
}

ul {
  padding-left: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}