:root {
  --bg: #f8fafc; --card: #ffffff; --ink: #0f172a; --ink-2: #475569; --rule: #e2e8f0;
  --accent: #2563eb; --accent-soft: #dbeafe; --on-accent: #ffffff; --muted-bg: #f1f5f9;
  --logo-lt: block; --logo-dk: none;
  --f: "Poppins", "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1115; --card: #171a20; --ink: #e8eaee; --ink-2: #a3abb8; --rule: #2a2f38;
    --accent: #f59e0b; --accent-soft: #2e230b; --on-accent: #111827; --muted-bg: #1c2027;
    --logo-lt: none; --logo-dk: block; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--f); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.wrap { max-width: 1040px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left)); padding-right: max(16px, env(safe-area-inset-right)); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 8px; z-index: 10; background: var(--card); padding: 8px 12px; border-radius: 6px; }
.site-head { border-bottom: 1px solid var(--rule); background: var(--card); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; }
.wordmark { font: 700 22px/1 "Poppins", sans-serif; letter-spacing: -0.02em; text-decoration: none; }
.site-nav { display: flex; gap: 4px; }
.site-nav a { text-decoration: none; padding: 10px 12px; border-radius: 6px; font-weight: 500; font-size: 15px; color: var(--ink-2); min-height: 44px; display: inline-flex; align-items: center; }
.site-nav a:hover { background: var(--muted-bg); color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--accent); font-weight: 700; }
.crumbs { font-size: 13px; color: var(--ink-2); padding-top: 20px; }
.crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs li + li::before { content: "›"; margin-right: 6px; color: var(--ink-2); }
.crumbs a { text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.doc { max-width: 760px; padding: 16px 0 64px; }
.doc h1 { font-size: clamp(26px, 4.5vw, 36px); line-height: 1.3; margin: 8px 0 8px; letter-spacing: -0.02em; }
.doc .lead { color: var(--ink-2); font-size: 17px; margin: 0 0 28px; }
.doc h2 { font-size: 20px; margin: 36px 0 10px; padding-top: 16px; border-top: 1px solid var(--rule); }
.doc h3 { font-size: 17px; margin: 24px 0 6px; }
.doc p, .doc li { color: var(--ink); }
.doc ul, .doc ol { padding-left: 1.3em; }
.doc table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 15px; }
.doc th, .doc td { border: 1px solid var(--rule); padding: 8px 10px; text-align: left; vertical-align: top; }
.doc th { background: var(--muted-bg); font-weight: 600; }
.table-scroll { overflow-x: auto; }
.doc table { word-break: keep-all; }
.doc td:first-child, .doc th:first-child { min-width: 5.5em; }
.doc .meta { color: var(--ink-2); font-size: 14px; }
.box { background: var(--card); border: 1px solid var(--rule); border-radius: 10px; padding: 20px; margin: 16px 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 22px; border-radius: 6px; background: var(--accent); color: var(--on-accent); font-weight: 700; font-size: 16px; text-decoration: none; }
.btn:active { transform: translateY(1px); }
/* 메인 */
.hero { padding: 56px 0 36px; }
.hero h1 { font-size: clamp(28px, 5vw, 44px); line-height: 1.25; margin: 0 0 14px; letter-spacing: -0.02em; }
.hero p { margin: 0; color: var(--ink-2); font-size: clamp(15px, 2.2vw, 18px); max-width: 36em; }
.grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 16px; padding-bottom: 64px; }
.card { background: var(--card); border: 1px solid var(--rule); border-radius: 10px; padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.card.main { grid-row: span 2; padding: 32px; text-decoration: none; transition: transform .15s ease, box-shadow .15s ease; }
.card.main:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgb(15 23 42 / .10); }
.card .logo { height: 48px; width: auto; align-self: flex-start; display: var(--logo-lt); }
.card .logo.dk { display: var(--logo-dk); }
.card h2 { margin: 0; font-size: 20px; }
.card p { margin: 0; color: var(--ink-2); }
.card ul { margin: 4px 0 0; padding-left: 1.1em; color: var(--ink-2); }
.card .btn { margin-top: auto; align-self: flex-start; }
.soon { background: var(--muted-bg); }
.badge { align-self: flex-start; font-size: 12px; font-weight: 600; padding: 2px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); }
.site-foot { border-top: 1px solid var(--rule); color: var(--ink-2); font-size: 13px; padding: 24px 0 40px; }
.site-foot p { margin: 4px 0; }
.foot-nav { display: flex; flex-wrap: wrap; gap: 4px 16px; margin-bottom: 10px; }
.foot-nav a { text-decoration: none; min-height: 32px; display: inline-flex; align-items: center; }
.foot-nav a:hover { text-decoration: underline; }
@media (max-width: 760px) {
  .hero { padding: 36px 0 24px; }
  .grid { grid-template-columns: 1fr; padding-bottom: 40px; }
  .card.main { grid-row: auto; padding: 24px; }
  .card .logo { height: 40px; }
  .card .btn { align-self: stretch; }
}
@media (max-width: 420px) {
  .wordmark { font-size: 19px; }
  .site-nav a { padding: 10px 8px; font-size: 14px; }
}
@media (prefers-reduced-motion: reduce) { .card.main { transition: none; } .card.main:hover { transform: none; } }