:root {
  color-scheme: dark;
  --ink: #f3eee4;
  --muted: #b8b0a3;
  --dim: #847d72;
  --line: rgba(236, 219, 179, 0.15);
  --panel: rgba(22, 23, 26, 0.86);
  --gold: #d7b86c;
  --gold-soft: rgba(215, 184, 108, 0.12);
  --danger: #df9b8f;
  --max: 820px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% -10%, rgba(105, 84, 45, 0.24), transparent 34rem),
    linear-gradient(155deg, #111317 0%, #090b0e 58%, #101114 100%);
  font-family: Pretendard, "Noto Sans KR", -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  line-height: 1.75;
  word-break: keep-all;
}

a { color: var(--gold); text-underline-offset: 0.2em; }
a:hover { color: #f0d99d; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(9, 11, 14, 0.8);
  backdrop-filter: blur(14px);
}

.site-header__inner,
main,
.site-footer__inner {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.site-header__inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  color: var(--ink);
  font-family: Georgia, "Noto Serif KR", serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.site-nav { display: flex; gap: 16px; font-size: 0.88rem; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a[aria-current="page"] { color: var(--gold); }

main { padding: 76px 0 96px; }

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1, h2, h3 {
  font-family: Georgia, "Noto Serif KR", serif;
  line-height: 1.35;
  letter-spacing: -0.025em;
}

h1 { margin: 0; font-size: clamp(2rem, 7vw, 3.35rem); }
h2 { margin: 56px 0 16px; font-size: 1.45rem; }
h3 { margin: 30px 0 8px; font-size: 1.05rem; }
p { margin: 0 0 16px; }

.lead {
  max-width: 680px;
  margin-top: 20px;
  color: var(--muted);
  font-size: 1.02rem;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 26px;
  color: var(--dim);
  font-size: 0.82rem;
}

.notice,
.card {
  margin-top: 30px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
}

.notice {
  border-color: rgba(215, 184, 108, 0.28);
  background: var(--gold-soft);
}

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

.toc {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 22px;
  margin: 34px 0 0;
  padding: 22px;
  border-block: 1px solid var(--line);
}

.toc a {
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}

ul, ol { margin: 10px 0 18px; padding-left: 1.25rem; }
li + li { margin-top: 7px; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 0.9rem;
}

.data-table th,
.data-table td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.data-table th { color: var(--gold); font-weight: 650; }
.data-table td { color: var(--muted); }

.button-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid rgba(215, 184, 108, 0.42);
  border-radius: 9px;
  color: #15130e;
  background: var(--gold);
  font-weight: 750;
  text-decoration: none;
}
.button--secondary { color: var(--gold); background: transparent; }

.faq { border-top: 1px solid var(--line); }
details { padding: 18px 0; border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 700; }
details p, details ul { color: var(--muted); }
details p:first-of-type { margin-top: 14px; }

.small { color: var(--dim); font-size: 0.82rem; }
.warning { color: var(--danger); }

.site-footer { border-top: 1px solid var(--line); color: var(--dim); }
.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0 40px;
  font-size: 0.78rem;
}
.site-footer p { margin: 0; }

@media (max-width: 640px) {
  .site-header__inner, main, .site-footer__inner { width: min(calc(100% - 28px), var(--max)); }
  .site-header__inner { min-height: 58px; }
  .brand { max-width: 170px; font-size: 0.88rem; }
  .site-nav { gap: 11px; font-size: 0.78rem; }
  main { padding: 52px 0 72px; }
  .toc { grid-template-columns: 1fr; }
  .data-table, .data-table tbody, .data-table tr, .data-table th, .data-table td { display: block; }
  .data-table thead { display: none; }
  .data-table tr { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .data-table th, .data-table td { padding: 4px 0; border: 0; }
  .data-table td::before { content: attr(data-label); display: block; color: var(--gold); font-size: 0.75rem; }
  .site-footer__inner { flex-direction: column; }
}