*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --ink:#18181b;--ink-2:#3f3f46;--gray:#71717a;--gray-2:#a1a1aa;
  --line:#e4e4e7;--line-2:#f4f4f5;--alt:#fafafa;
  --ok:#16803c;--warn:#b45309;--no:#b91c1c;
}

html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
  font-family:"Pretendard Variable",Pretendard,-apple-system,system-ui,"Apple SD Gothic Neo",sans-serif;
  color:var(--ink);background:#fff;line-height:1.75;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}

/* 상단 바 */
.dnav{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line);
}
.dwrap{max-width:1240px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:28px;height:60px}
.logo{font-weight:800;font-size:16px;letter-spacing:-.5px;display:inline-flex;align-items:center;gap:2px}
.logo span{color:var(--gray)}
.logo i{font-style:normal;font-size:9px;margin-left:4px;color:var(--gray-2)}
.dnav nav{display:flex;gap:22px;margin-left:auto;font-size:13.5px;font-weight:500;color:var(--gray)}
.dnav nav a:hover{color:var(--ink)}
.dnav nav a.on{color:var(--ink);font-weight:700}
.dbtn{
  background:var(--ink);color:#fff;border-radius:999px;
  padding:8px 18px;font-size:13.5px;font-weight:600;white-space:nowrap;
}

/* 레이아웃 */
.dlayout{max-width:1240px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:220px minmax(0,1fr);gap:52px;align-items:start}
.dtoc{position:sticky;top:84px;padding:40px 0}
.dtoc-in{display:flex;flex-direction:column;gap:3px;max-height:calc(100vh - 130px);overflow-y:auto}
.dtoc b{font-size:11.5px;color:var(--gray-2);font-weight:700;margin-bottom:9px}
.dtoc a{font-size:13px;color:var(--gray);padding:5px 10px;border-radius:7px;line-height:1.5;border-left:2px solid transparent}
.dtoc a:hover{background:var(--line-2);color:var(--ink)}
.dtoc a.on{color:var(--ink);font-weight:700;border-left-color:var(--ink);background:var(--line-2)}

.dbody{padding:40px 0 90px;min-width:0;max-width:800px}

/* 문서 헤더 */
.dhead{padding-bottom:28px;border-bottom:1px solid var(--line);margin-bottom:38px}
.dtag{
  display:inline-block;font-size:11.5px;font-weight:700;color:var(--gray);
  border:1px solid var(--line);border-radius:999px;padding:4px 12px;margin-bottom:16px;
}
.dhead h1{font-size:36px;font-weight:800;letter-spacing:-1.6px;line-height:1.2;margin-bottom:10px}
.dhead p{font-size:15px;color:var(--gray)}

/* 본문 */
.dbody h2{
  font-size:24px;font-weight:800;letter-spacing:-.9px;
  margin:52px 0 16px;padding-top:8px;scroll-margin-top:88px;
}
.dbody h3{font-size:17.5px;font-weight:700;letter-spacing:-.5px;margin:32px 0 12px;scroll-margin-top:88px}
.dbody h4{font-size:15px;font-weight:700;margin:22px 0 9px}
.dbody p{font-size:14.5px;color:var(--ink-2);margin-bottom:14px;line-height:1.85}
.dbody strong{font-weight:700;color:var(--ink)}
.dbody a{color:var(--ink);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--gray-2)}
.dbody a:hover{text-decoration-color:var(--ink)}
.dbody hr{border:0;border-top:1px solid var(--line);margin:44px 0}

.dbody ul,.dbody ol{margin:0 0 16px;padding-left:2px}
.dbody li{font-size:14.5px;color:var(--ink-2);line-height:1.8;padding-left:19px;position:relative;margin-bottom:6px}
.dbody ul>li::before{content:"";position:absolute;left:4px;top:12px;width:5px;height:5px;border-radius:50%;background:var(--gray-2)}
.dbody ol{counter-reset:n}
.dbody ol>li{counter-increment:n}
.dbody ol>li::before{
  content:counter(n) ".";position:absolute;left:0;top:0;
  font-size:13px;font-weight:700;color:var(--gray);
}

.checklist li.chk::before{
  content:"";position:absolute;left:0;top:6px;width:14px;height:14px;
  border:1.5px solid var(--line);border-radius:4px;background:#fff;
}
.checklist li{padding-left:24px}

/* 표 */
.tw{overflow-x:auto;margin:0 0 20px;border:1px solid var(--line);border-radius:11px}
.dbody table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:420px}
.dbody th{
  text-align:left;font-size:12.5px;font-weight:700;color:var(--gray);
  padding:11px 15px;background:var(--alt);border-bottom:1px solid var(--line);white-space:nowrap;
}
.dbody td{padding:12px 15px;border-bottom:1px solid var(--line-2);color:var(--ink-2);vertical-align:top}
.dbody tbody tr:last-child td{border-bottom:0}
.dbody td:first-child{font-weight:600;color:var(--ink)}

/* 인용 — 주의사항 */
blockquote{
  border:1px solid #fde68a;background:#fffbeb;border-radius:11px;
  padding:16px 18px;margin:0 0 20px;
}
blockquote p{font-size:13.5px;color:#78350f;margin-bottom:8px;line-height:1.8}
blockquote p:last-child{margin-bottom:0}
blockquote strong{color:#78350f}

/* 코드 */
pre{
  background:var(--alt);border:1px solid var(--line);border-radius:11px;
  padding:16px 18px;overflow-x:auto;margin:0 0 20px;
}
pre code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:12.5px;line-height:1.7;color:var(--ink-2);white-space:pre;
}
:not(pre)>code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:.88em;background:var(--line-2);border-radius:5px;padding:2px 6px;
}

/* 하단 */
.dfoot{margin-top:64px;padding-top:26px;border-top:1px solid var(--line)}
.dfoot p{font-size:13.5px;color:var(--gray)}
.dnote{font-size:12px;color:var(--gray-2);margin-top:8px}

@media(max-width:960px){
  .dlayout{grid-template-columns:1fr;gap:0}
  .dtoc{position:static;padding:24px 0 0}
  .dtoc-in{
    flex-direction:row;flex-wrap:wrap;gap:6px;max-height:none;
    border:1px solid var(--line);border-radius:11px;padding:14px;
  }
  .dtoc b{width:100%;margin-bottom:4px}
  .dtoc a{border-left:0;background:var(--line-2);font-size:12.5px}
  .dbody{padding-top:28px}
  .dhead h1{font-size:28px}
  .dnav nav{display:none}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}