:root{--ink:#1f2430;--ink-soft:#5b6472;--line:#e6e8ee;--bg:#f7f8fb;--card:#fff;--gold:#E8731C;--gold-deep:#c75f12;--ok:#1a9e5f;--cream:#fbf7f1}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;color:var(--ink);background:var(--bg);font-size:16px;line-height:1.5}
.muted{color:var(--ink-soft)}.hidden{display:none!important}
#topbar{position:sticky;top:0;z-index:10;background:#fff;border-bottom:1px solid var(--line);padding:10px 16px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.brand{font-weight:800;font-size:17px}
.chip{font-size:11px;font-weight:700;background:var(--cream);color:var(--gold-deep);border:1px solid var(--line);padding:2px 8px;border-radius:20px;margin-left:6px;vertical-align:middle}
#prog-wrap{flex:1;min-width:120px;height:8px;background:var(--line);border-radius:6px;overflow:hidden}
#prog-bar{height:100%;width:0;background:linear-gradient(90deg,var(--gold),var(--gold-deep));transition:width .25s}
#prog-text{font-size:13px;white-space:nowrap}
#layout{display:flex;gap:0;min-height:calc(100vh - 49px)}
#side{width:300px;flex:0 0 300px;background:#fff;border-right:1px solid var(--line);padding:18px 14px;overflow-y:auto}
.side-title{font-weight:800;font-size:15px;margin-bottom:12px;line-height:1.35}
#steps{list-style:none;margin:0;padding:0}
#steps li{display:flex;gap:10px;align-items:flex-start;padding:10px;border-radius:10px;cursor:pointer;margin-bottom:4px}
#steps li:hover{background:var(--bg)}
#steps li.cur{background:var(--cream);outline:1px solid #f0d9c2}
#steps li .num{flex:0 0 24px;height:24px;border-radius:50%;background:var(--line);color:var(--ink-soft);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
#steps li.done .num{background:var(--ok);color:#fff}
#steps li.cur .num{background:var(--gold);color:#fff}
#steps li .lab{font-size:13.5px;line-height:1.35;padding-top:2px}
.ghost{background:#fff;border:1px solid var(--line);color:var(--ink-soft);border-radius:10px;padding:9px 14px;font-size:14px;cursor:pointer;font-weight:600}
.ghost:hover{background:var(--bg)}
#to-index{margin-top:18px;width:100%}
#stage{flex:1;padding:26px 30px;max-width:860px}
#step-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.step-badge{flex:0 0 auto;background:var(--gold);color:#fff;font-weight:800;border-radius:10px;padding:4px 12px;font-size:14px}
#step-title{margin:0;font-size:22px;line-height:1.3}
.body{font-size:16.5px;line-height:1.7;margin-bottom:18px}
.body code{background:var(--cream);padding:1px 6px;border-radius:6px;font-size:.92em}
#step-copy{margin:14px 0}
#copy-text{background:#1f2430;color:#e8edf5;padding:14px 16px;border-radius:12px;font-size:13px;line-height:1.5;overflow-x:auto;white-space:pre-wrap;word-break:break-all}
.gold{background:linear-gradient(90deg,var(--gold),var(--gold-deep));color:#fff;border:none;border-radius:12px;padding:12px 20px;font-size:15px;font-weight:700;cursor:pointer}
.gold:hover{filter:brightness(1.05)}
.linkbtn{display:inline-block;margin:6px 0 0;background:#fff;border:1.5px solid var(--gold);color:var(--gold-deep);border-radius:10px;padding:10px 18px;font-weight:700;text-decoration:none;font-size:14px}
.hint{background:var(--cream);border-left:3px solid var(--gold);padding:10px 14px;border-radius:8px;font-size:14px;color:var(--ink-soft);margin:14px 0}
#webinweb{width:100%;height:60vh;border:1px solid var(--line);border-radius:12px;margin:14px 0;background:#fff}
#nav{display:flex;gap:10px;margin-top:24px;border-top:1px solid var(--line);padding-top:18px}
#guide-cards{display:grid;gap:12px;margin-top:18px}
.gcard{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;cursor:pointer}
.gcard:hover{border-color:var(--gold);box-shadow:0 2px 10px rgba(232,115,28,.08)}
.gcard .ic{font-size:30px}.gcard .t{font-weight:700}.gcard .d{font-size:13.5px;color:var(--ink-soft);margin-top:2px}
#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:12px 22px;border-radius:30px;font-size:14px;opacity:0;transition:.25s;pointer-events:none;z-index:50}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
@media(max-width:720px){#layout{flex-direction:column}#side{width:auto;flex:none;border-right:none;border-bottom:1px solid var(--line)}#stage{padding:18px 16px}#step-title{font-size:19px}}