:root{--bg: #f6f7f9;--surface: #ffffff;--border: #e5e7eb;--text: #1f2430;--muted: #6b7280;--primary: #2563eb;--primary-soft: #eff4ff;--sidebar-w: 280px;--topbar-h: 58px;font-family:-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Malgun Gothic,Noto Sans KR,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.topbar{position:sticky;top:0;z-index:30;height:var(--topbar-h);display:flex;align-items:center;gap:12px;padding:0 18px;background:var(--surface);border-bottom:1px solid var(--border)}.menu-btn{display:none;font-size:20px;background:none;border:none;cursor:pointer;color:var(--text)}.brand{display:flex;flex-direction:column;line-height:1.2}.brand-title{font-weight:700;font-size:16px}.brand-sub{font-size:12px;color:var(--muted)}.layout{display:flex;align-items:flex-start}.sidebar{position:sticky;top:var(--topbar-h);width:var(--sidebar-w);height:calc(100vh - var(--topbar-h));overflow-y:auto;background:var(--surface);border-right:1px solid var(--border);padding:16px 12px 40px;flex-shrink:0}.search input{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;outline:none;background:var(--bg)}.search input:focus{border-color:var(--primary);background:#fff}.nav{margin-top:18px}.nav-group{margin-bottom:20px}.nav-cat{font-size:12px;font-weight:700;letter-spacing:.03em;color:var(--muted);text-transform:none;margin:0 0 6px 8px}.nav ul{list-style:none;margin:0;padding:0}.nav-link{display:block;width:100%;text-align:left;padding:7px 10px;border:none;background:none;border-radius:7px;font-size:14px;color:var(--text);cursor:pointer}.nav-link:hover{background:var(--bg)}.nav-link.active{background:var(--primary-soft);color:var(--primary);font-weight:600}.empty{color:var(--muted);font-size:14px;padding:8px}.content{flex:1;min-width:0;padding:40px max(24px,6%) 80px}.doc{max-width:760px;margin:0 auto}.placeholder{max-width:600px;margin:60px auto;text-align:center;color:var(--muted)}.markdown{line-height:1.7;font-size:15.5px}.markdown h1{font-size:28px;margin:0 0 8px;padding-bottom:14px;border-bottom:1px solid var(--border)}.markdown h2{font-size:20px;margin:32px 0 12px}.markdown h3{font-size:16px;margin:24px 0 8px}.markdown p{margin:12px 0}.markdown ul,.markdown ol{padding-left:22px}.markdown li{margin:4px 0}.markdown blockquote{margin:16px 0;padding:10px 16px;background:var(--primary-soft);border-left:3px solid var(--primary);border-radius:0 8px 8px 0;color:#374151;font-size:14px}.markdown code{background:#eef0f3;padding:2px 6px;border-radius:5px;font-size:.88em}.markdown table{border-collapse:collapse;width:100%;margin:16px 0;font-size:14px}.markdown th,.markdown td{border:1px solid var(--border);padding:8px 12px;text-align:left}.markdown th{background:var(--bg);font-weight:600}.markdown hr{border:none;border-top:1px solid var(--border);margin:32px 0}.markdown a{color:var(--primary)}.overlay{display:none}@media (max-width: 820px){.menu-btn{display:block}.sidebar{position:fixed;top:var(--topbar-h);left:0;z-index:25;transform:translate(-100%);transition:transform .22s ease;box-shadow:2px 0 14px #00000014}.sidebar.open{transform:translate(0)}.overlay{display:block;position:fixed;inset:var(--topbar-h) 0 0 0;background:#00000059;z-index:20}.content{padding:28px 20px 60px}}
