:root{--bg:#fafafa;--ink:#171717;--muted:#777;--line:#e3e3e3}
*{box-sizing:border-box}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo",sans-serif;
  letter-spacing:-.025em;word-break:keep-all;line-height:1.75;
}
a{text-decoration:none;color:inherit}
.wrap{max-width:1240px;margin:0 auto;padding:0 22px}

/* 헤더 — 랜딩과 동일 */
.topbar{position:sticky;top:0;z-index:50;background:var(--bg)}
header{height:72px;display:flex;align-items:center;justify-content:space-between}
.logo{display:inline-flex;align-items:center;gap:15px}
.logo-mark{width:30px;height:30px;display:block;flex:0 0 auto}
.logo-mark svg{width:100%;height:100%;display:block}
.logo-name{font-size:15px;font-weight:500;letter-spacing:.2em;color:var(--ink)}
.btn-pill{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink);color:#fff;border-radius:999px;
  padding:12px 55px;font-size:14px;font-weight:500;letter-spacing:-.02em;transition:opacity .2s ease;
}
.btn-pill:hover{opacity:.82}

/* 문서 */
.doc{padding:70px 0 110px;max-width:760px}
.eyebrow{font-family:"DM Mono",monospace;font-size:10px;letter-spacing:.08em;color:#8a8a8a;margin-bottom:16px}
.doc h1{margin:0;font-size:clamp(36px,5vw,60px);line-height:1.14;font-weight:500;letter-spacing:-.06em}
.doc .eff{margin-top:16px;font-family:"DM Mono",monospace;font-size:11px;color:#999}
.doc h2{
  margin:52px 0 0;padding-top:20px;border-top:1px solid var(--line);
  font-size:19px;font-weight:600;letter-spacing:-.035em;
}
.doc p{margin:14px 0 0;font-size:15px;color:#4a4a4a}
.doc ul{margin:14px 0 0;padding-left:19px}
.doc li{margin-top:9px;font-size:15px;color:#4a4a4a}
.doc li::marker{color:#bbb}
.doc strong{font-weight:600;color:var(--ink)}
.doc .note{
  margin-top:18px;padding:16px 18px;background:#f2f2f2;border-radius:10px;
  font-size:14px;color:#555;
}
.doc .back{
  display:inline-block;margin-top:70px;padding-bottom:5px;
  border-bottom:1px solid var(--ink);font-size:14px;font-weight:500;
}

/* 푸터 — 랜딩과 동일 */
footer{border-top:1px solid var(--line);padding:26px 0 34px}
.footer-inner{
  display:flex;justify-content:space-between;gap:26px;
  font-family:"DM Mono",monospace;font-size:10px;color:#999;letter-spacing:.02em;line-height:1.95;
}
.footer-inner p{margin:0}
.footer-brand{font-family:inherit;font-size:12px;font-weight:600;color:#555;letter-spacing:-.04em;margin-bottom:5px !important}
.footer-links{display:flex;flex-direction:column;align-items:flex-end;justify-content:flex-end;gap:3px;white-space:nowrap}
.footer-links a:hover{color:var(--ink)}

@media(max-width:760px){
  .wrap{padding:0 16px}
  header{height:62px}
  .logo{gap:11px}
  .logo-mark{width:28px;height:28px}
  .logo-name{font-size:12px;letter-spacing:.15em}
  .btn-pill{padding:10px 22px;font-size:13px}
  .doc{padding:48px 0 80px}
  .doc h2{margin-top:40px}
  .footer-inner{flex-direction:column;gap:20px}
  .footer-links{align-items:flex-start}
}
@media(max-width:400px){
  .logo{gap:9px}
  .logo-name{font-size:11px;letter-spacing:.1em}
  .btn-pill{padding:9px 17px;font-size:12px}
}