@font-face{font-family:'Study Korean';src:url('fonts/NotoSansKR.ttf') format('truetype');font-weight:100 900;font-display:swap;}
:root{--bg:#f4f5ef;--paper:#fff;--ink:#172b2b;--muted:#5c6c6a;--accent:#087b65;--line:#d8e1d9;--soft:#edf5f0}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.85 'Study Korean',system-ui,-apple-system,sans-serif}body.dark{--bg:#101c1c;--paper:#192a29;--ink:#e6f0e9;--muted:#a6b9b2;--accent:#73d5b5;--line:#344944;--soft:#223b34}header{max-width:1180px;margin:auto;padding:22px 28px;display:flex;align-items:center;gap:24px;border-bottom:1px solid var(--line)}.brand{font-size:24px;font-weight:800;text-decoration:none;color:var(--ink)}em{font-style:normal;color:var(--accent)}header span{font-size:11px;letter-spacing:2px;color:var(--muted)}button{font:inherit;border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:9px;padding:7px 14px;cursor:pointer}header button{margin-left:auto;font-size:13px}.hero{max-width:1180px;padding:45px 28px 32px;margin:auto}.hero small{color:var(--accent);font-weight:700}.hero h1{font-size:clamp(32px,5vw,54px);line-height:1.3;letter-spacing:-2px;margin:15px 0}.hero p{color:var(--muted)}.stats{display:flex;gap:10px;flex-wrap:wrap;font-size:12px}.stats span{border:1px solid var(--line);padding:4px 12px;border-radius:20px}main{max-width:1180px;margin:auto;padding:10px 28px 60px;display:grid;grid-template-columns:270px minmax(0,1fr);gap:30px}.nav{align-self:start;position:sticky;top:20px}.nav label{font-size:13px;font-weight:700}input{width:100%;padding:12px;margin:8px 0 15px;border:1px solid var(--line);border-radius:9px;background:var(--paper);color:var(--ink);font:inherit}.progress{font-size:12px;color:var(--muted);margin:0 0 18px}progress{width:100%;height:7px;accent-color:var(--accent)}nav a{display:block;padding:15px;border:1px solid var(--line);border-radius:12px;margin-bottom:9px;background:var(--paper);text-decoration:none;color:var(--ink)}nav a.active{border-color:var(--accent);box-shadow:inset 4px 0 var(--accent)}nav a small{display:block;color:var(--accent);font-size:11px}nav a strong{font-size:14px;line-height:1.5;display:block}.note{font-size:12px;color:var(--muted)}article{min-width:0;background:var(--paper);padding:38px 42px;border:1px solid var(--line);border-radius:18px}article h1{font-size:30px;line-height:1.4;letter-spacing:-1px;margin:8px 0 28px}article h2{font-size:21px;margin:36px 0 12px}article p{margin:14px 0}.lead{font-size:18px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:24px}.meta{font-size:12px;color:var(--accent)}article aside{padding:18px 22px;background:var(--soft);border-left:4px solid var(--accent);border-radius:6px;margin:26px 0}article aside p{margin-bottom:0}.flow{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;background:var(--soft);padding:24px 14px;border-radius:12px}.flow span{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:8px;font-size:13px}.flow b{color:var(--accent)}.caption{font-size:12px;color:var(--muted)}pre{overflow:auto;background:var(--soft);padding:18px;border-radius:10px;font-size:13px}details{border:1px solid var(--line);border-radius:9px;padding:14px;margin:12px 0}summary{cursor:pointer;font-weight:600;font-size:14px}details p{font-size:14px}.road{font-size:12px}li{margin:7px 0}.refs a{color:var(--accent);overflow-wrap:anywhere}.controls{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}.primary{background:var(--accent);color:var(--paper);border-color:var(--accent)}footer{max-width:1180px;margin:auto;padding:20px 28px 35px;color:var(--muted);font-size:12px}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:3px}@media(max-width:750px){header{padding:15px 18px;gap:10px}header span{display:none}.hero{padding:28px 18px 18px}.hero h1{letter-spacing:-1px}main{display:block;padding:10px 14px 35px}.nav{position:static;margin-bottom:20px}nav{display:flex;gap:8px;overflow-x:auto}nav a{min-width:215px;flex:1}article{padding:25px 20px}article h1{font-size:25px}.flow{gap:5px}.road{margin-bottom:10px}}@media print{header,.hero,.nav,.controls,footer{display:none}main{display:block;padding:0}article{border:0;padding:0}details{break-inside:avoid}body{background:#fff;color:#000}}

.plan-link{display:inline-block;color:var(--accent);font-weight:700;text-decoration:none;border-bottom:1px solid var(--accent);padding:5px 0}