:root {
  --portal-paper: #f7f3df;
  --portal-paper-deep: #f0e8d8;
  --portal-ink: #725d42;
  --portal-heading: #794f27;
  --portal-muted: #8a6a45;
  --portal-line: #e4d5b7;
  --portal-wood: #e4c48a;
  --portal-wood-edge: #c4a574;
  --portal-wood-shadow: #b08950;
  --portal-teal: #11a89b;
  --portal-teal-deep: #0d8f84;
  --portal-cream: #fffdf7;
}

* { box-sizing: border-box; }

html {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 500px at 10% -10%, #fff8e6, transparent 55%),
    linear-gradient(180deg, var(--portal-paper) 0%, var(--portal-paper-deep) 100%);
  color: var(--portal-ink);
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", ui-sans-serif, system-ui, sans-serif;
  line-height: 1.7;
}

a {
  color: var(--portal-teal);
}

a:hover {
  color: var(--portal-teal-deep);
}

.portal-shell {
  width: min(52rem, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3.5rem;
}

.portal-brand {
  display: inline-block;
  margin: 0 0 1.25rem;
  color: var(--portal-heading);
  font-weight: 700;
  text-decoration: none;
}

.portal-brand:hover {
  color: var(--portal-teal);
}

.portal-kicker {
  margin: 0 0 0.35rem;
  color: var(--portal-muted);
  font-size: 0.85rem;
}

h1 {
  margin: 0 0 0.75rem;
  color: var(--portal-heading);
  font-size: 1.85rem;
  line-height: 1.3;
}

.portal-lead,
.portal-copy,
.portal-empty {
  margin: 0 0 1.25rem;
  max-width: 40rem;
}

.portal-empty {
  padding: 1rem 1.15rem;
  border: 1px solid var(--portal-line);
  border-radius: 16px;
  background: rgba(247, 243, 223, 0.9);
}

.portal-plaques,
.portal-courses {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}

.portal-plaque {
  display: block;
  padding: 1.15rem 1.2rem 1.2rem;
  border: 2px solid var(--portal-wood-edge);
  border-radius: 10px;
  background:
    linear-gradient(180deg, #f3ddb0 0%, var(--portal-wood) 58%, #d8b572 100%);
  box-shadow: 0 6px 0 var(--portal-wood-shadow), 0 12px 18px rgba(114, 93, 66, 0.16);
  color: var(--portal-heading);
  font-weight: 700;
  text-decoration: none;
}

.portal-plaque:hover {
  color: var(--portal-heading);
  transform: translateY(-1px);
}

.portal-section {
  margin: 1.6rem 0 0;
  padding: 1rem 1.15rem 1.1rem;
  border: 1px solid var(--portal-line);
  border-radius: 16px;
  background: rgba(247, 243, 223, 0.92);
}

.portal-section h2 {
  margin: 0 0 0.55rem;
  color: var(--portal-heading);
  font-size: 1.1rem;
}

.portal-section p {
  margin: 0;
}

.portal-section p + p {
  margin-top: 0.55rem;
}

.portal-path {
  margin: 0;
  padding-left: 1.2rem;
}

.portal-path li + li {
  margin-top: 0.4rem;
}

.portal-home-link {
  display: inline-block;
  margin-top: 1.4rem;
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  background: var(--portal-teal);
  color: var(--portal-cream);
  text-decoration: none;
}

.portal-home-link:hover {
  background: var(--portal-teal-deep);
  color: var(--portal-cream);
}