:root{--bg:#F6F4F1;--card:#FFFFFF;--ink:#17161A;--body:#3B3A40;--muted:#6B6A72;--line:#E3DFD9;--accent:#E8402F;--accent-ink:#FFFFFF;--soft:#FBE7E3}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#121115;--card:#1C1B20;--ink:#F3F2F5;--body:#CFCDD4;--muted:#9C9AA4;--line:#2E2C33;--accent:#FF6A57;--accent-ink:#1A0C0A;--soft:#3A1C18;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#121115;--card:#1C1B20;--ink:#F3F2F5;--body:#CFCDD4;--muted:#9C9AA4;--line:#2E2C33;--accent:#FF6A57;--accent-ink:#1A0C0A;--soft:#3A1C18;color-scheme:dark}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--body);font-family:"Pretendard","Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;line-height:1.7;font-size:15px}
a{color:inherit}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
.top{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:900;letter-spacing:-.02em;font-size:18px}
.mark{width:30px;height:30px;border-radius:8px;background:var(--ink);display:grid;place-items:center}
.mark i{display:block;width:14px;height:10px;background:var(--accent);border-radius:2px 2px 6px 6px}
.top nav{display:flex;gap:18px;font-size:14px;font-weight:600}
.top nav a{text-decoration:none;color:var(--muted)}
.top nav a:hover{color:var(--ink)}
footer{border-top:1px solid var(--line);margin-top:64px;padding:24px 0 40px;color:var(--muted);font-size:12.5px;line-height:1.9}
footer b{color:var(--ink)}
footer a{color:var(--muted)}
/* home */
.hero{padding:56px 0 40px}
.eyebrow{font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--accent);text-transform:uppercase}
.hero h1{margin:10px 0 14px;color:var(--ink);font-size:clamp(30px,6vw,52px);line-height:1.18;letter-spacing:-.035em;font-weight:900}
.hero p{max-width:560px;margin:0;font-size:16.5px}
.app{display:grid;grid-template-columns:1.1fr 1fr;gap:28px;align-items:center;background:var(--card);border-radius:24px;padding:32px;margin-top:24px}
.app-head{display:flex;gap:14px;align-items:center}
.app-head img{width:64px;height:64px;border-radius:16px}
.app h2{margin:0;color:var(--ink);font-size:24px;letter-spacing:-.02em}
.app h2 b{color:var(--accent)}
.tag{display:inline-block;font-size:12px;font-weight:700;color:var(--accent);background:var(--soft);border-radius:99px;padding:2px 10px;margin-top:4px}
.app ul{padding-left:18px;margin:16px 0}
.btns{display:flex;flex-wrap:wrap;gap:8px}
.btn{display:inline-block;text-decoration:none;font-weight:700;font-size:14px;border-radius:12px;padding:10px 16px;border:1px solid var(--line);color:var(--ink);background:var(--bg)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.shots{display:flex;gap:10px;justify-content:center}
.shots img{width:31%;max-width:150px;border-radius:14px;border:1px solid var(--line)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
.cell{background:var(--card);border-radius:18px;padding:22px}
.cell h3{margin:0 0 6px;color:var(--ink);font-size:16px}
.cell p{margin:0;font-size:14px}
h2.sec{margin:56px 0 0;color:var(--ink);font-size:22px;letter-spacing:-.02em}
.info{background:var(--card);border-radius:18px;padding:22px;margin-top:14px;display:grid;grid-template-columns:140px 1fr;gap:6px 16px;font-size:14px}
.info dt{color:var(--muted)}
.info dd{margin:0;color:var(--ink)}
/* docs */
.doc-head{padding:28px 0 4px}
.doc-head .crumb{font-size:13px;color:var(--muted)}
.doc-head .crumb a{text-decoration:none}
.doc-head h1{margin:6px 0 0;color:var(--ink);font-size:clamp(24px,5vw,32px);letter-spacing:-.02em}
.tabs{position:sticky;top:0;z-index:2;background:var(--bg);display:flex;gap:8px;padding:12px 0;overflow-x:auto}
.tabs a{flex:none;text-decoration:none;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:99px;padding:6px 14px;font-size:13px;font-weight:700}
.tabs a.on{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.doc{max-width:760px}
.doc section{background:var(--card);border-radius:16px;padding:22px;margin-top:8px}
.doc h3{margin:18px 0 4px;color:var(--ink);font-size:15px}
.doc h3:first-child{margin-top:0}
.doc p{margin:4px 0}
.doc ol{margin:4px 0;padding-left:22px}
.tbl{overflow-x:auto;margin:8px 0}
table{border-collapse:collapse;width:100%;font-size:13.5px}
th,td{text-align:left;vertical-align:top;padding:8px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-size:12px;white-space:nowrap}
.meta{color:var(--muted);font-size:13px;margin-top:14px}
@media (max-width:720px){
 .app{grid-template-columns:1fr;padding:22px}
 .grid{grid-template-columns:1fr}
 .info{grid-template-columns:1fr;gap:0}
 .info dd{margin-bottom:10px}
 .top nav{gap:12px}
}
@media (max-width:560px){
 table,tbody,tr,td{display:block;width:100%}thead{display:none}
 tr{border:1px solid var(--line);border-radius:10px;padding:6px 10px;margin-bottom:8px}
 td{border:0;padding:3px 0}td::before{content:attr(data-l);display:block;color:var(--muted);font-size:11px;font-weight:700}
}