:root {
  color-scheme: dark;
  --background: #0e0e10;
  --surface: #17171b;
  --text: #f6f3ef;
  --muted: #9d9994;
  --accent: #e8905a;
  --accent-hover: #f0a171;
  --border: #2b2b31;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100svh;
  margin: 0;
  padding: 40px 20px 72px;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

main {
  width: min(100%, 680px);
  margin: 0 auto;
}

.mark {
  width: 52px;
  height: 4px;
  margin-bottom: 28px;
  border-radius: 999px;
  background: var(--accent);
}

h1 {
  margin: 0;
  font-size: clamp(2.5rem, 10vw, 4rem);
  font-weight: 650;
  letter-spacing: -0.055em;
  line-height: 1;
}

h2 {
  margin: 44px 0 12px;
  font-size: 1.15rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

h3 {
  margin: 28px 0 8px;
  font-size: 1rem;
  font-weight: 650;
  color: var(--accent);
}

.lead {
  margin: 22px 0 0;
  font-size: 1.15rem;
  font-weight: 600;
}

p,
li {
  color: var(--muted);
}

.lead,
h1,
h2,
h3 {
  color: var(--text);
}

ul {
  padding-left: 20px;
}

li {
  margin-bottom: 8px;
}

a {
  color: var(--accent);
  text-underline-offset: 3px;
}

a:hover {
  color: var(--accent-hover);
}

.card {
  margin-top: 32px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--surface);
}

.card p:first-child {
  margin-top: 0;
}

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

.meta {
  margin-top: 8px;
  font-size: 0.85rem;
}

footer {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--muted);
}

footer a {
  margin-right: 18px;
  white-space: nowrap;
}

.en {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.back {
  display: inline-block;
  margin-bottom: 28px;
  font-size: 0.9rem;
}