:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --text: #18181b;
  --muted: #52525b;
  --line: #e4e4e7;
  --soft: #fafafa;
  --accent: #e11d48;
  --accent-2: #f59e0b;
  --code: #27272a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #09090b;
    --text: #f4f4f5;
    --muted: #a1a1aa;
    --line: rgba(255, 255, 255, 0.08);
    --soft: #111113;
    --code: #f4f4f5;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.shell {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav-inner {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.mark {
  width: 30px;
  height: 30px;
  display: inline-grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-radius: 8px;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.hero {
  padding: 88px 0 56px;
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(color-mix(in srgb, var(--accent) 6%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--accent-2) 5%, transparent) 1px, transparent 1px);
  background-size: 64px 64px;
}

.eyebrow {
  color: var(--accent);
  font: 700 12px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 16px 0;
  max-width: 860px;
  font-size: clamp(42px, 8vw, 78px);
  line-height: 1.02;
  letter-spacing: 0;
}

.lede {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 8px;
  padding: 0 16px;
  border: 1px solid var(--line);
  font-size: 14px;
  font-weight: 700;
}

.button.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.section {
  padding: 52px 0;
  border-bottom: 1px solid var(--line);
}

.section h2 {
  margin: 0 0 12px;
  font-size: 28px;
  line-height: 1.2;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: var(--soft);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.answer {
  max-width: 820px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 13px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 10px;
  background: var(--soft);
}

.article-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 28px;
}

.article-card {
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  background: var(--soft);
}

.article-card h2 {
  margin: 0 0 8px;
}

.article-card p {
  margin: 0;
  color: var(--muted);
}

.bilingual {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.language-block {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background: color-mix(in srgb, var(--soft) 72%, transparent);
}

.language-block h2:first-child {
  margin-top: 0;
}

.language-block h3 {
  margin-top: 28px;
  margin-bottom: 8px;
}

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

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

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  overflow: hidden;
  border-radius: 8px;
}

th,
td {
  border: 1px solid var(--line);
  padding: 12px;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--soft);
}

code {
  color: var(--code);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.95em;
}

.notice {
  border: 1px solid color-mix(in srgb, var(--accent-2) 35%, var(--line));
  border-radius: 8px;
  padding: 16px;
  background: color-mix(in srgb, var(--accent-2) 9%, transparent);
  color: var(--muted);
}

.footer {
  padding: 36px 0;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 760px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding-top: 64px;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .language-block {
    padding: 18px;
  }
}