:root{
  --bg:#EDEFF2; --surface:#FFFFFF; --ink:#17191D; --muted:#5B616B; --line:#D7DCE2;
  --sun:#F2B33D; --sun-ink:#8A5A00; --sun-soft:#FCEBC4; --code:#F1F3F5; --shadow:0 1px 0 rgba(23,25,29,.04),0 8px 24px rgba(23,25,29,.06);
  --display:"Black Han Sans","IBM Plex Sans KR",system-ui,sans-serif;
  --body:"IBM Plex Sans KR",-apple-system,system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
}
@media (prefers-color-scheme: dark){
  :root{ --bg:#111316; --surface:#1A1D21; --ink:#EEF0F3; --muted:#9AA1AB; --line:#2B3036;
    --sun-ink:#F5C566; --sun-soft:#3A2F17; --code:#202429; --shadow:0 1px 0 rgba(0,0,0,.2),0 8px 24px rgba(0,0,0,.25); color-scheme:dark }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.7;word-break:keep-all;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%;display:block}
.container{max-width:1080px;margin:0 auto;padding-inline:20px}
:focus-visible{outline:2px solid var(--sun);outline-offset:3px;border-radius:6px}
.nav{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700}
.logo img{width:34px;height:34px;border-radius:50%;object-fit:cover;border:2px solid var(--sun)}
.logo span{font-family:var(--display);font-size:20px;letter-spacing:.5px}
.nav nav{display:flex;gap:4px}
.nav nav a{text-decoration:none;font-size:14px;color:var(--muted);padding:6px 10px;border-radius:8px}
.nav nav a:hover{color:var(--ink);background:var(--surface)}
.hero{padding-block:56px 40px}
.hero .container{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-copy{min-width:0}
.kicker{display:inline-flex;gap:8px;flex-wrap:wrap;font-family:var(--mono);font-size:13px;color:var(--muted);margin-bottom:18px}
.kicker b{background:var(--ink);color:var(--bg);font-weight:500;padding:3px 9px;border-radius:6px}
.hero h1{font-family:var(--display);font-weight:400;font-size:clamp(40px,5.6vw,66px);line-height:1.12;margin:0 0 20px;letter-spacing:-.5px;text-wrap:balance}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 62%,var(--sun) 62%)}
.hero p.lead{font-size:18px;color:var(--muted);margin:0 0 28px;max-width:30em}
.btns{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-weight:700;font-size:15px;padding:13px 20px;border-radius:12px;border:1px solid var(--line);background:var(--surface)}
.btn.primary{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.btn:hover{transform:translateY(-1px)}
.hero-visual{position:relative;min-width:0}
.photo{border-radius:28px;overflow:hidden;aspect-ratio:4/5;box-shadow:var(--shadow);max-width:100%}
.photo img{width:100%;height:100%;object-fit:cover}
.badge-float{position:absolute;left:-28px;bottom:36px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px 16px;box-shadow:var(--shadow);min-width:210px}
.badge-float .t{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.08em}
.badge-float .n{font-weight:700;font-size:16px;margin-top:2px}
.badge-float .s{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);margin-top:6px}
.dot{width:8px;height:8px;border-radius:50%;background:#2FB06B;flex:none}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:18px;background:var(--surface);overflow:hidden}
.stat{padding:20px 22px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat .v{font-family:var(--display);font-size:34px;line-height:1.1;font-variant-numeric:tabular-nums}
.stat .l{font-size:13.5px;color:var(--muted);margin-top:4px}
section.block{padding-block:56px}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.sec-head .eyebrow{font-family:var(--mono);font-size:12.5px;letter-spacing:.1em;color:var(--sun-ink);text-transform:uppercase}
.sec-head h2{font-family:var(--display);font-weight:400;font-size:clamp(28px,4vw,40px);line-height:1.2;margin:4px 0 0;text-wrap:balance}
.sec-head p{margin:0;color:var(--muted);font-size:15px;max-width:28em}
.ceo{display:flex;justify-content:center;margin-bottom:0}
.ceo-card{display:flex;align-items:center;gap:12px;background:var(--ink);color:var(--bg);border-radius:16px;padding:12px 18px 12px 12px}
.ceo-card img{width:44px;height:44px;border-radius:50%;object-fit:cover;border:2px solid var(--sun)}
.ceo-card .r{font-family:var(--mono);font-size:11px;opacity:.7;letter-spacing:.08em}
.ceo-card .n{font-weight:700}
.trunk{width:2px;height:28px;background:var(--line);margin:0 auto}
.org{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px;border-top:2px solid var(--line);padding-top:22px}
.idcard{position:relative;display:flex;flex-direction:column;gap:12px;text-decoration:none;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px 18px 18px;box-shadow:var(--shadow);transition:transform .15s,border-color .15s;min-width:0}
.idcard::before{content:"";position:absolute;top:10px;left:50%;width:38px;height:7px;margin-left:-19px;border-radius:4px;background:var(--bg);border:1px solid var(--line)}
a.idcard:hover{transform:translateY(-3px);border-color:var(--sun)}
.idcard .row{display:flex;gap:12px;align-items:center;margin-top:6px}
.face{width:56px;height:56px;border-radius:14px;flex:none;background-image:url(/assets/faces.webp);background-size:auto 56px;border:2px solid var(--sun)}
.idcard .code{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.06em}
.idcard .name{font-weight:700;font-size:18px;line-height:1.3}
.idcard .desc{font-size:14px;color:var(--muted);margin:0;min-height:3.2em}
.idcard .foot{display:flex;justify-content:space-between;align-items:center;font-size:13px;border-top:1px dashed var(--line);padding-top:10px}
.pill{font-size:12px;font-weight:700;padding:2px 9px;border-radius:999px;background:var(--sun-soft);color:var(--sun-ink)}
.idcard.soon{opacity:.62;box-shadow:none;background:transparent;border-style:dashed}
.idcard.soon .face{filter:grayscale(1);border-color:var(--line)}
.idcard.soon .pill{background:var(--code);color:var(--muted)}
.list{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:18px;background:var(--surface);overflow:hidden}
.item{display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;padding:18px 20px;text-decoration:none;border-bottom:1px solid var(--line)}
.item:last-child{border-bottom:0}
.item:hover{background:var(--code)}
.item .tag{font-family:var(--mono);font-size:12px;border:1px solid var(--line);border-radius:8px;padding:4px 8px;color:var(--muted);white-space:nowrap}
.item .tt{min-width:0}
.item .tt b{display:block;font-size:16.5px;line-height:1.45}
.item .tt span{font-size:13.5px;color:var(--muted)}
.item .go{font-size:20px;color:var(--muted)}
.how{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.how > div{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px}
.how .n{font-family:var(--mono);font-size:13px;color:var(--sun-ink)}
.how b{display:block;font-size:17px;margin:6px 0 4px}
.how p{margin:0;font-size:14.5px;color:var(--muted)}
.crumb{font-size:13.5px;color:var(--muted);padding-top:28px;display:flex;gap:6px;flex-wrap:wrap}
.crumb a{text-decoration:none;color:var(--muted)}
.crumb a:hover{color:var(--ink)}
.page-head{padding-block:18px 32px;display:flex;gap:20px;align-items:center}
.page-head .face{width:84px;height:84px;background-size:auto 84px;border-radius:22px}
.page-head h1{font-family:var(--display);font-weight:400;font-size:clamp(32px,5vw,52px);line-height:1.18;margin:4px 0 6px;text-wrap:balance}
.page-head p{margin:0;color:var(--muted)}
.page-head > div{min-width:0}
.guide{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:32px;align-items:start;padding-bottom:64px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;margin-bottom:16px}
.panel h3{font-size:13px;font-family:var(--mono);letter-spacing:.1em;color:var(--sun-ink);margin:0 0 12px;text-transform:uppercase}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:13.5px;border:1px solid var(--line);border-radius:999px;padding:4px 12px;background:var(--bg)}
.steps{list-style:none;margin:0;padding:0;counter-reset:s;display:flex;flex-direction:column;gap:12px}
.steps li{counter-increment:s;display:grid;grid-template-columns:32px 1fr;gap:12px;font-size:15.5px}
.steps li::before{content:counter(s);width:28px;height:28px;border-radius:50%;background:var(--ink);color:var(--bg);font-family:var(--mono);font-size:13px;display:grid;place-items:center;margin-top:2px}
.prompt-wrap{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--code);margin-bottom:16px}
.prompt-bar{position:sticky;top:60px;z-index:5;display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 14px;background:var(--surface);border-bottom:1px solid var(--line);flex-wrap:wrap}
.prompt-bar .pt{font-weight:700;font-size:15px}
.prompt-bar .pm{font-family:var(--mono);font-size:12px;color:var(--muted)}
pre.prompt{margin:0;padding:20px;font-family:var(--body);font-size:14.5px;line-height:1.75;white-space:pre-wrap;overflow-wrap:anywhere}
button{font:inherit}
.copy{border:0;background:var(--ink);color:var(--bg);font-weight:700;font-size:14px;padding:10px 18px;border-radius:10px;cursor:pointer}
.copy.done{background:var(--sun);color:#17191D}
.tips{margin:0;padding-left:18px;font-size:15px}
.tips li{margin-bottom:6px}
.side{position:sticky;top:84px;display:flex;flex-direction:column;gap:16px}
.side .panel{margin:0}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:14px}
.kv dt{color:var(--muted)}
.kv dd{margin:0;font-weight:500}
.mini{display:flex;flex-direction:column;gap:8px}
.mini a{text-decoration:none;font-size:14px;line-height:1.45;padding:8px 10px;border-radius:10px;border:1px solid var(--line)}
.mini a:hover{border-color:var(--sun)}
.empty{padding:28px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:18px}
footer.site{border-top:1px solid var(--line);padding-block:32px;color:var(--muted);font-size:13.5px}
footer.site .container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
@media (max-width:860px){
  .hero .container{grid-template-columns:1fr;gap:32px}
  .hero{padding-top:36px}
  .hero-visual{max-width:420px}
  .badge-float{left:12px;bottom:16px}
  .guide{grid-template-columns:1fr}
  .side{position:static}
  .how{grid-template-columns:1fr}
}
@media (max-width:520px){
  .nav nav a.hide-sm{display:none}
  .stats{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .item{grid-template-columns:1fr auto;padding:16px}
  .item .tag{grid-column:1/-1;justify-self:start}
  .page-head{flex-direction:column;align-items:flex-start}
  pre.prompt{padding:16px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto} .btn:hover,a.idcard:hover{transform:none} }
.tabs{display:flex;gap:8px;overflow-x:auto;padding-bottom:14px;margin-bottom:2px;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{flex:none;display:inline-flex;align-items:center;gap:7px;font-size:14.5px;font-weight:700;text-decoration:none;color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:8px 14px;cursor:pointer}
.tab span{font-family:var(--mono);font-size:12px;font-weight:500;background:var(--code);border-radius:999px;padding:0 7px;min-width:20px;text-align:center}
.tab:hover{color:var(--ink);border-color:var(--sun)}
.tab.on{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.tab.on span{background:var(--sun);color:#17191D}
.tab.zero{opacity:.6}
.item .tt em.ct{font-style:normal;font-weight:700;color:var(--sun-ink);margin-right:8px}
.item .tag{min-width:70px;text-align:center}
/* v5: stage-based guides */
.prompt-bar{position:static}
.prompt-foot{display:flex;justify-content:flex-end;padding:12px 14px;border-top:1px solid var(--line);background:var(--surface)}
.goal{margin:0 0 16px;font-size:15.5px}
.flow{list-style:none;margin:0 0 16px;padding:0;display:flex;flex-wrap:wrap;gap:6px 4px;align-items:center;counter-reset:f}
.flow li{counter-increment:f;font-size:13.5px;font-weight:500;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:6px 10px}
.flow li::before{content:counter(f) ". ";font-family:var(--mono);color:var(--sun-ink)}
.flow li:not(:last-child)::after{content:"→";margin-left:8px;color:var(--muted)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.split > div{border-radius:14px;padding:14px 16px;font-size:14.5px}
.split b{display:block;font-size:13px;font-family:var(--mono);letter-spacing:.06em;margin-bottom:6px}
.split ul{margin:0;padding-left:18px}
.split .auto{background:var(--sun-soft)} .split .auto b{color:var(--sun-ink)}
.split .human{background:var(--code)} .split .human b{color:var(--muted)}
.toollist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.toollist li{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:baseline;border-bottom:1px dashed var(--line);padding-bottom:8px}
.toollist li:last-child{border-bottom:0;padding-bottom:0}
.toollist b{font-size:15px} .toollist span{font-size:13.5px;color:var(--muted)}
.stage{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;margin-bottom:16px;scroll-margin-top:76px}
.stage-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.stage-n{font-family:var(--mono);font-size:12.5px;background:var(--ink);color:var(--bg);border-radius:8px;padding:3px 9px}
.stage h2{margin:0;font-size:20px;line-height:1.35;text-wrap:balance}
.where{display:inline-flex;gap:8px;align-items:center;font-size:13.5px;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:5px 10px;margin-bottom:14px}
.where span{font-family:var(--mono);font-size:11.5px;color:var(--sun-ink);letter-spacing:.06em}
.stage .prompt-wrap{margin:16px 0 0}
.ok{margin-top:14px;font-size:14px;display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}
.ok b{font-size:12px;font-family:var(--mono);color:#1E7F4B;background:color-mix(in srgb,#2FB06B 16%,transparent);border-radius:6px;padding:2px 8px}
.checks{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:6px;font-size:15px}
.checks li::before{content:"☐ ";color:var(--sun-ink)}
.mini a em{font-style:normal;font-family:var(--mono);font-size:11.5px;color:var(--sun-ink);margin-right:4px}
.pipe{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(6,1fr);gap:10px;counter-reset:p}
.pipe li{position:relative;display:flex;flex-direction:column;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px 14px;min-width:0}
.pipe li.ceo-step{background:var(--sun-soft);border-color:transparent}
.pipe li:not(:last-child)::after{content:"→";position:absolute;right:-10px;top:50%;transform:translate(50%,-50%);color:var(--muted);font-size:16px;z-index:1}
.pipe .face{width:40px;height:40px;border-radius:12px}
.pipe-ava{width:40px;height:40px;border-radius:12px;object-fit:cover;border:2px solid var(--sun)}
.pipe b{display:block;font-size:15px;line-height:1.3}
.pipe span{display:block;font-size:13.5px;margin-top:2px}
.pipe em{display:block;font-style:normal;font-size:12.5px;color:var(--muted);margin-top:4px}
@media (max-width:980px){ .pipe{grid-template-columns:repeat(3,1fr)} .pipe li:nth-child(3n)::after{display:none} }
@media (max-width:620px){
  .pipe{grid-template-columns:1fr} .pipe li{flex-direction:row;align-items:center}
  .pipe li:not(:last-child)::after{content:"↓";right:auto;left:34px;top:auto;bottom:-15px;transform:none;display:block}
  .split{grid-template-columns:1fr}
  .stage{padding:18px}
}