:root {
  --ink: #12171A;
  --ink-soft: #5F6C73;
  --base: #F1F3F4;
  --surface: #FFFFFF;
  --rule: #DCE1E4;
  --action: #2C5FF6;
  --saved: #136F52;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--base);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

.wrap {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 24px 96px;
}

header.site {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 40px;
}

.mark {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--action), var(--saved));
  flex-shrink: 0;
}

.brand {
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.2px;
}

h1 {
  font-size: 28px;
  margin: 0 0 8px;
  letter-spacing: -0.2px;
}

h2 {
  font-size: 18px;
  margin: 32px 0 8px;
  color: var(--ink);
}

.updated {
  color: var(--ink-soft);
  font-size: 14px;
  margin: 0 0 32px;
}

p, li { color: var(--ink); }
p { margin: 0 0 12px; }
ul { margin: 0 0 12px; padding-left: 20px; }
li { margin-bottom: 4px; }

a { color: var(--action); text-decoration: none; }
a:hover { text-decoration: underline; }

.card {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 24px;
  margin-bottom: 16px;
}

.card h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.card p:last-child { margin-bottom: 0; }

.linklist {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.linklist a {
  display: block;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 16px 20px;
  color: var(--ink);
  font-weight: 600;
}

.linklist a:hover {
  border-color: var(--action);
  text-decoration: none;
}

.linklist span {
  display: block;
  font-weight: 400;
  color: var(--ink-soft);
  font-size: 14px;
  margin-top: 2px;
}

footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  color: var(--ink-soft);
  font-size: 13px;
}

.back {
  display: inline-block;
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--ink-soft);
}