:root {
  color-scheme: light;
  --background: #f8f4ee;
  --panel: #ffffff;
  --ink: #1f312d;
  --muted: #5c6a66;
  --green: #3e7c65;
  --blue: #d6ebf7;
  --line: #d8cec2;
  --soft: #eee8e0;
  --warning: #b6725c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

a {
  color: var(--green);
  font-weight: 700;
}

.site-header {
  background: var(--blue);
  border-bottom: 1px solid var(--line);
}

.header-inner,
.page {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
}

.header-inner {
  padding: 30px 0 22px;
}

.brand {
  margin: 0 0 8px;
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1;
  letter-spacing: 0;
}

.tagline {
  margin: 0;
  max-width: 680px;
  color: var(--muted);
  font-size: 19px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.nav a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  text-decoration: none;
}

.page {
  padding: 34px 0 56px;
}

.card,
.notice {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 24px;
}

.notice {
  background: var(--soft);
}

.notice strong {
  color: var(--warning);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 22px;
}

h1,
h2,
h3 {
  line-height: 1.18;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(34px, 6vw, 52px);
}

h2 {
  margin: 34px 0 12px;
  font-size: 26px;
}

h3 {
  margin: 20px 0 8px;
  font-size: 20px;
}

p,
ul,
ol {
  font-size: 17px;
}

ul,
ol {
  padding-left: 22px;
}

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

.meta {
  color: var(--muted);
  font-size: 15px;
}

.footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 24px 0 40px;
}

.footer-inner {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
}

code {
  padding: 2px 5px;
  border-radius: 5px;
  background: var(--soft);
}