@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#fff;--sidebar:#f7f6f3;--fg:#37352f;--sub:#837e75;--line:#ece9e3;--accent:#6e7bff;--accent-soft:#eef0ff;--pink:#ff6b8a;--radius:12px;--shadow:0 2px 10px #37352f0f;--shadow-hover:0 10px 28px #37352f1f}html,body,#root{height:100%}body{background:var(--bg);color:var(--fg);font-family:Inter,-apple-system,Apple SD Gothic Neo,Malgun Gothic,sans-serif}a{color:inherit}.layout{min-height:100vh;display:flex}.sidebar{background:var(--sidebar);flex-shrink:0;width:250px;height:100vh;padding:30px 16px;position:sticky;top:0}.sidebar .brand{color:var(--fg);align-items:center;gap:8px;margin-bottom:30px;font-size:15px;font-weight:800;text-decoration:none;display:flex}.sidebar .brand .dot{background:var(--accent);border-radius:50%;width:9px;height:9px;display:inline-block}.sidebar nav a{color:var(--sub);border-radius:8px;align-items:center;margin-bottom:3px;padding:8px 12px;font-size:14px;text-decoration:none;transition:background .18s,color .18s,transform .18s;display:flex}.sidebar nav a:hover{color:var(--fg);box-shadow:var(--shadow);background:#fff;transform:translate(2px)}.sidebar nav a.active{color:var(--accent);box-shadow:var(--shadow);background:#fff;font-weight:700}.sidebar .sec{color:#a8a296;text-transform:uppercase;letter-spacing:.5px;margin:20px 0 8px 12px;font-size:11px;font-weight:700}main.content{flex:1;max-width:800px;padding:60px 68px}@media (width<=720px){.layout{flex-direction:column}.sidebar{width:100%;height:auto;padding:20px 16px;position:static}main.content{max-width:100%;padding:32px 24px}}h1.page-title{letter-spacing:-.8px;margin-bottom:10px;font-size:32px;font-weight:800}.page-icon{margin-bottom:6px;font-size:40px}.tagline{color:var(--sub);margin-bottom:42px;font-size:15.5px}.section{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);opacity:0;background:#fff;margin-bottom:22px;padding:24px 26px;transition:opacity .55s cubic-bezier(.2,.8,.2,1),transform .55s cubic-bezier(.2,.8,.2,1);transform:translateY(18px)scale(.98)}.section.visible{opacity:1;transform:translateY(0)scale(1)}.section h2{color:var(--accent);margin-bottom:12px;font-size:13.5px;font-weight:700}.section p{color:#4d4a44;font-size:14.5px;line-height:1.85}.card-list{gap:16px;display:grid}.card{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);opacity:0;background:#fff;justify-content:space-between;align-items:flex-start;gap:20px;padding:22px 24px;transition:opacity .5s,transform .5s,box-shadow .25s,border-color .25s;display:flex;transform:translateY(20px)}.card.visible{opacity:1;transform:translateY(0)}.card:hover{box-shadow:var(--shadow-hover);border-color:#dcdfff;transform:translateY(-4px)}.card .emoji{margin-bottom:10px;font-size:26px;display:block}.card .info h3{margin-bottom:5px;font-size:16.5px;font-weight:700}.card .info p{color:var(--sub);max-width:480px;margin-bottom:10px;font-size:13px;line-height:1.6}.tags{flex-wrap:wrap;gap:6px;display:flex}.tag{color:var(--accent);background:var(--accent-soft);border-radius:100px;padding:3px 10px;font-size:11px;font-weight:600}.card .link{color:#fff;background:var(--fg);white-space:nowrap;border-radius:100px;height:fit-content;padding:7px 14px;font-size:12.5px;text-decoration:none;transition:background .18s,transform .18s}.card:hover .link{background:var(--accent);transform:scale(1.04)}.doc-main{max-width:720px}.doc{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;margin-bottom:24px;padding:30px 28px}.doc h1{margin:0 0 4px;font-size:20px}.doc .sub{color:var(--sub);margin-bottom:14px;font-size:12.5px}.doc h2{color:var(--accent);margin:22px 0 8px;font-size:15px;font-weight:700}.doc p{color:#4d4a44;margin:6px 0;font-size:13.5px;line-height:1.85}.doc ul{margin:6px 0;padding-left:18px}.doc li{color:#4d4a44;margin:3px 0;font-size:13.5px;line-height:1.85}.toc{margin:4px 0 22px;font-size:13px}.toc a{color:var(--accent);margin-right:16px;font-weight:600;text-decoration:none}.accent{color:var(--pink)}form.contact{border:1px solid var(--line);border-radius:var(--radius);max-width:460px;box-shadow:var(--shadow);background:#fff;flex-direction:column;gap:16px;margin-top:10px;padding:26px;display:flex}form.contact label{color:var(--sub);margin-bottom:5px;font-size:12.5px;font-weight:600;display:block}form.contact input,form.contact textarea{border:1px solid var(--line);background:#fafaf8;border-radius:8px;width:100%;padding:11px 13px;font-family:inherit;font-size:13.5px;transition:border-color .18s,box-shadow .18s}form.contact input:focus,form.contact textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);outline:none}form.contact textarea{resize:vertical;min-height:120px}form.contact button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:100px;width:fit-content;padding:12px 20px;font-size:13.5px;font-weight:700;transition:transform .15s,box-shadow .15s}form.contact button:hover{transform:translateY(-2px);box-shadow:0 8px 18px #6e7bff59}form.contact button:disabled{opacity:.6;cursor:not-allowed;box-shadow:none;transform:none}.form-msg{margin-top:4px;font-size:13px}.form-msg.ok{color:#1a8f4c}.form-msg.err{color:#d0392b}