:root {
  color-scheme: light;
  --bg: #fafaf9;
  --ink: #1c1917;
  --muted: #57534e;
  --line: #e7e5e4;
  --amber: #92400e;
  --amber-soft: #fef3c7;
  --amber-line: #ca8a04;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.65 "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: var(--amber); }
a:hover { color: #78350f; }

.skip {
  position: absolute;
  left: 12px;
  top: -48px;
  background: #fff;
  color: var(--ink);
  padding: 8px 12px;
  border-radius: 8px;
  z-index: 20;
}

.skip:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(250, 250, 249, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .bar,
.site-footer .bar {
  max-width: 880px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand img { width: 44px; height: 44px; }

.wordmark {
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: 18px;
  color: #1c1917;
}

.wordmark span { color: #d97706; }

.tag {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.age {
  flex: none;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  background: #fef3c7;
  color: #78350f;
  border: 1px solid #fcd34d;
  border-radius: 999px;
  padding: 4px 10px;
}

main {
  max-width: 820px;
  margin: 0 auto;
  padding: 40px 24px 72px;
}

h1 {
  font-size: 36px;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 8px 0 12px;
}

h2 {
  font-size: 22px;
  line-height: 1.3;
  margin: 36px 0 10px;
}

.kicker {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.notice,
.callout {
  background: var(--amber-soft);
  border-left: 5px solid var(--amber-line);
  border-radius: 12px;
  padding: 16px 18px;
}

.callout + .callout { margin-top: 16px; }

.confirm {
  background: #fde68a;
  border-bottom: 2px solid #a16207;
  font-weight: 800;
  padding: 0 0.2em;
  white-space: nowrap;
}

ul, ol { padding-left: 1.3rem; }
li + li { margin-top: 0.45rem; }

.button {
  display: inline-block;
  background: #1c1917;
  color: #fff;
  text-decoration: none;
  border-radius: 12px;
  padding: 12px 18px;
  font-weight: 700;
}

.button:hover { background: #44403c; color: #fff; }

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 28px;
}

.site-footer {
  background: #1c1917;
  color: #a8a29e;
  font-size: 14px;
}

.site-footer a { color: #fcd34d; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 10px 16px; }

@media (max-width: 640px) {
  h1 { font-size: 30px; }
  .tag { max-width: 180px; }
  main { padding: 28px 18px 56px; }
  .site-header .bar, .site-footer .bar { padding-left: 18px; padding-right: 18px; }
}