:root {
  color-scheme: light;
  --ink: #123532;
  --coral: #ff6f61;
  --cream: #f8f5ed;
  --mint: #d9efe7;
  --text: #182421;
  --muted: #64746f;
  --panel: #fffdf8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Trebuchet MS", "Segoe UI", "Microsoft YaHei", sans-serif;
  background: linear-gradient(180deg, #fbfaf5 0%, #eef6f0 100%);
  color: var(--text);
}

a {
  color: var(--ink);
  font-weight: 900;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 16px max(16px, calc((100vw - 980px) / 2));
  background: rgba(255, 253, 248, 0.96);
  border-bottom: 3px solid var(--ink);
}

.brand {
  color: var(--ink);
  font-size: 22px;
  font-weight: 950;
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.site-nav a {
  min-height: 38px;
  padding: 8px 12px;
  border: 2px solid transparent;
  text-decoration: none;
}

.site-nav a.active,
.site-nav a:hover {
  border-color: var(--ink);
  background: var(--mint);
}

.page {
  width: min(980px, calc(100vw - 32px));
  min-height: 70vh;
  margin: 0 auto;
  padding: 38px 0;
}

.card {
  padding: 28px;
  background: var(--panel);
  border: 3px solid var(--ink);
  box-shadow: 0 18px 44px rgba(18, 53, 50, 0.1);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--coral);
  font-size: 13px;
  font-weight: 950;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 18px;
  color: var(--ink);
  font-size: 34px;
}

h2 {
  margin: 24px 0 8px;
  color: var(--ink);
  font-size: 22px;
}

p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 22px max(16px, calc((100vw - 980px) / 2));
  background: var(--ink);
  color: #fffdf8;
}

.site-footer a {
  color: #fffdf8;
}

@media (max-width: 720px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  h1 {
    font-size: 28px;
  }
}