:root{
  color-scheme:light;
  --ink:#183d38;--muted:#4f655f;--paper:#f7f6f0;--card:#ffffff;--line:#dcE1d7;
  --accent:#2f6b4f;--tbd-bg:#fff1a8;--tbd-line:#b58900;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Apple SD Gothic Neo","Noto Sans KR",sans-serif}
a{color:var(--accent);text-underline-offset:3px}
a:focus-visible,button:focus-visible{outline:3px solid #67924a;outline-offset:3px}
.wrap{width:min(860px,calc(100% - 32px));margin:0 auto}
.site-header{border-bottom:1px solid var(--line);background:var(--paper)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0}
.brand{font-weight:750;font-size:21px;letter-spacing:-.5px;color:var(--ink);text-decoration:none}
.nav-links{display:flex;gap:18px;font-size:15px}
.nav-links a{color:var(--ink)}
main{padding:48px 0 64px;min-height:60vh}
.doc h1{font-size:clamp(30px,5vw,44px);line-height:1.15;letter-spacing:-1px;margin:0 0 16px}
.doc h2{font-size:22px;line-height:1.3;margin:36px 0 10px}
.doc h3{font-size:18px;margin:24px 0 8px}
.doc p,.doc li{max-width:72ch}
.doc ul,.doc ol{padding-left:22px}
.doc li{margin-bottom:6px}
.doc-index h1{font-size:clamp(34px,6vw,54px);letter-spacing:-1.5px}
.doc-index > p:first-of-type{font-size:19px;color:var(--muted)}
mark.tbd{background:var(--tbd-bg);color:#5c4300;border:1px dashed var(--tbd-line);border-radius:4px;padding:0 4px;font-weight:600}
.signin{margin:28px 0 10px}
.gsi-button{display:inline-flex;align-items:center;gap:12px;height:44px;padding:0 18px 0 14px;background:#fff;color:#1f1f1f;border:1px solid #747775;border-radius:22px;font:500 15px/1 "Roboto",system-ui,-apple-system,"Segoe UI",sans-serif;text-decoration:none}
.gsi-button:hover{background:#f6f8fa}
.gsi-logo{width:20px;height:20px}
.btn-primary{display:inline-block;padding:11px 20px;border-radius:22px;background:var(--ink);color:#fff;text-decoration:none;font-weight:600}
.btn-secondary{padding:10px 20px;border-radius:22px;border:1px solid var(--ink);background:transparent;color:var(--ink);font:inherit;font-weight:600;cursor:pointer}
.btn-disabled{display:inline-block;padding:11px 20px;border-radius:22px;background:#e6e8e3;color:var(--muted)}
.notice{background:#fdecea;border:1px solid #f1b9b2;color:#7a1f14;padding:10px 14px;border-radius:8px}
.account h1{font-size:32px;margin:0 0 16px}
.account-email span{color:var(--muted);margin-right:6px}
.account-email strong{word-break:break-all}
.message{padding:24px 0}
.site-footer{border-top:1px solid var(--line);padding:24px 0 36px;font-size:14px;color:var(--muted)}
.footer-links{display:flex;flex-wrap:wrap;gap:8px 20px;margin:0 0 8px}
.footer-links a{color:var(--muted)}
.footer-entity{margin:0}
@media (max-width:600px){main{padding:32px 0 48px}.doc h2{font-size:20px}}