:root{--paper:#f5f7f7;--white:#fff;--ink:#0e2230;--navy:#002b49;--teal:#146e7a;--gold:#9a7520;--line:#dce4e6;--wash:#edf3f3;--muted:#526971;--sans:'Pretendard Variable',Pretendard,'Malgun Gothic',sans-serif;--serif:'Noto Serif KR',Batang,serif;--mono:Consolas,Menlo,monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.8 var(--sans);word-break:keep-all;overflow-wrap:break-word}a{color:var(--teal);text-underline-offset:4px}button,select,textarea{font:inherit}button,a{touch-action:manipulation}:focus-visible{outline:3px solid var(--gold);outline-offset:4px}.skip{position:absolute;left:12px;top:-100px;background:white;padding:10px;z-index:30}.skip:focus{top:8px}.bar{position:sticky;top:0;z-index:10;border-bottom:1px solid var(--line);background:var(--paper)}.bar-inner{max-width:1140px;padding:12px 24px;margin:auto;display:flex;align-items:center;gap:20px}.brand{font-weight:750;text-decoration:none;color:var(--navy);font-size:13px}.bar nav{margin-left:auto;display:flex;gap:18px;align-items:center;font-size:12px}.wrap{max-width:1100px;padding:0 24px 80px;margin:auto}.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center;padding:62px 0 46px;border-bottom:1px solid var(--line)}.hero.compact{display:block;padding:48px 0 32px}.eyebrow{font:700 11px/1.6 var(--mono);letter-spacing:.1em;color:var(--teal);margin:0 0 18px}h1,h2,h3{color:var(--navy);line-height:1.4;letter-spacing:-.025em}h1,h2{font-family:var(--serif)}h1{font-size:clamp(30px,4.4vw,44px);margin:0 0 20px}h2{font-size:27px;margin:0 0 15px}h3{font-size:18px;margin:0 0 10px}.lead{font-size:16px;color:var(--muted);margin:0;max-width:750px}.actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:23px}.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--navy);background:var(--navy);color:var(--white);padding:10px 17px;border-radius:6px;text-decoration:none;cursor:pointer;font-size:13px;font-weight:700;line-height:1.6}.btn:hover{background:var(--teal);border-color:var(--teal)}.btn.secondary{background:var(--white);color:var(--navy);border-color:var(--line)}.btn.small{padding:6px 11px;font-size:12px}.note{font-size:12px;color:var(--muted)}.jump{display:flex;flex-wrap:wrap;gap:18px;padding:19px 0;font-size:13px;border-bottom:1px solid var(--line)}.section{padding-top:48px}.section>p{max-width:850px}.notebook{background:var(--white);border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 28px #002b4909;overflow:hidden}.nb-top{display:flex;gap:12px;align-items:center;background:var(--wash);border-bottom:1px solid var(--line);padding:13px 18px;font:12px var(--mono)}.nb-top b{color:var(--gold)}.nb-cell{display:grid;grid-template-columns:33px 1fr;gap:12px;margin:17px 18px;padding-bottom:17px;border-bottom:1px solid var(--line);font-size:13px}.nb-cell:last-child{border-bottom:0;margin-bottom:0}.cell-id{font:12px var(--mono);color:var(--teal);padding-top:4px}.nb-cell p{margin:3px 0}.nb-cell .output{font:700 20px var(--mono);color:var(--teal);margin-top:10px}.nb-caption{font-size:11px;color:var(--muted);margin:10px 0 0}.panel{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:25px;margin-top:18px}.panel.highlight{border-top:3px solid var(--teal)}.two{display:grid;grid-template-columns:1fr 1fr;gap:22px}.two>*{min-width:0}.fields{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:20px 0}.fields label{font-size:13px;font-weight:700;display:block}.fields select{width:100%;margin-top:7px;background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:10px;color:var(--ink)}.prompt-label{font-size:13px;font-weight:700;display:block;margin-top:18px}textarea{display:block;width:100%;min-height:250px;padding:17px;background:var(--paper);color:var(--navy);border:1px solid var(--line);border-radius:6px;resize:vertical;line-height:1.8;font-size:13px}code{font-family:var(--mono);font-size:.9em;overflow-wrap:anywhere}pre{white-space:pre-wrap;overflow-wrap:anywhere;background:var(--navy);color:var(--white);border-radius:6px;padding:19px;font:12px/1.8 var(--mono);margin:14px 0}.copy-line{display:flex;align-items:center;justify-content:space-between;gap:14px}.copy-line h3{margin:0}.status{min-height:24px;color:var(--teal);font-size:12px;margin:10px 0 0}.steps{list-style:none;padding:0;counter-reset:step;margin:20px 0}.steps>li{position:relative;counter-increment:step;padding:0 0 26px 48px;border-left:1px solid var(--line);margin-left:15px}.steps>li:before{content:counter(step);position:absolute;left:-16px;top:0;width:31px;height:31px;display:grid;place-items:center;background:var(--navy);color:var(--white);border-radius:50%;font:13px var(--mono)}.steps>li:last-child{border-left:0;padding-bottom:0}.steps p{font-size:14px;margin:6px 0}.steps h3{padding-top:3px}.callout{border-left:3px solid var(--gold);padding:15px 21px;background:var(--white);margin:23px 0;font-size:14px}.checklist{display:grid;gap:10px;margin-top:18px}.checklist label{display:flex;gap:12px;align-items:flex-start;font-size:14px;cursor:pointer}.checklist input{margin-top:7px;accent-color:var(--teal);width:17px;height:17px;flex-shrink:0}.tag{font:11px var(--mono);color:var(--teal)}details{padding:18px 21px;background:var(--white);border:1px solid var(--line);border-radius:8px;margin:15px 0}summary{font-weight:700;color:var(--navy);cursor:pointer}details p,details li{font-size:14px}.table-scroll{overflow:auto}table{border-collapse:collapse;width:100%;font-size:13px;margin:18px 0}th,td{padding:13px 15px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:var(--wash)}.sources{font-size:12px;line-height:2.1;padding-left:21px}.foot{border-top:1px solid var(--line);margin-top:50px;padding-top:23px;font-size:12px;color:var(--muted)}.foot a{margin-right:15px}.section ul{padding-left:21px}.muted{color:var(--muted)}
@media(max-width:760px){.hero{grid-template-columns:1fr;gap:28px;padding-top:35px}.two,.fields{grid-template-columns:1fr}.wrap{padding:0 18px 50px}.bar-inner{padding:12px 18px;gap:12px}.bar nav{gap:12px}.bar .hub{display:none}.panel{padding:19px}.section{padding-top:36px}h2{font-size:24px}.actions{gap:8px}.copy-line{align-items:flex-start}.steps>li{padding-left:32px}textarea{min-height:340px}.jump{gap:12px}.hero.compact{padding-top:35px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{body{background:white;font-size:11px}.bar,.jump,.btn,.fields,.skip,.status{display:none}.wrap{max-width:none;padding:0}.hero{padding:10px 0;gap:20px}.hero.compact{padding:10px 0}h1{font-size:28px}h2{font-size:20px}.section{padding-top:25px}.panel,.notebook,details{break-inside:avoid;box-shadow:none}.notebook{max-width:400px}pre{background:var(--wash);color:var(--ink);font-size:10px}textarea{min-height:230px;font-size:10px}details>*{display:block!important}summary{list-style:none}.table-scroll{overflow:visible}.foot{margin-top:24px}}