*{box-sizing:border-box}
:root{--bg:#f3efe6;--text:#171717;--muted:#666;--card:rgba(255,255,255,.72);--border:rgba(0,0,0,.1)}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;background:radial-gradient(circle at 15% 20%,rgba(255,255,255,.85),transparent 30%),linear-gradient(135deg,#f2eee6,#dfe6eb);color:var(--text);min-height:100vh;transition:.35s ease}
body.night{--text:#f5f5f5;--muted:#b8b8b8;--card:rgba(20,20,25,.72);--border:rgba(255,255,255,.12);background:radial-gradient(circle at 80% 10%,rgba(72,77,120,.35),transparent 30%),linear-gradient(135deg,#101114,#20232b)}
a{color:inherit;text-decoration:none}
.topbar{position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;align-items:center;padding:22px 5vw;backdrop-filter:blur(18px);border-bottom:1px solid var(--border)}
.brand{font-weight:900;letter-spacing:.08em}
nav{display:flex;gap:24px;font-size:14px}
main{width:min(1180px,90vw);margin:auto}
.hero{padding:110px 0 80px}
.eyebrow{font-size:12px;letter-spacing:.18em;font-weight:800;color:var(--muted)}
h1{font-size:clamp(44px,8vw,100px);line-height:.96;margin:18px 0 26px;letter-spacing:-.06em}
.sub{font-size:18px;line-height:1.7;color:var(--muted);max-width:680px}
.actions{display:flex;gap:12px;margin-top:32px}
.primary,.secondary{border:1px solid var(--border);border-radius:999px;padding:14px 22px;font-weight:700;font-size:14px}
.primary{background:var(--text);color:var(--bg)}
.secondary{background:transparent;color:var(--text);cursor:pointer}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:18px}
.card,.panel{border:1px solid var(--border);background:var(--card);backdrop-filter:blur(18px);border-radius:28px;padding:28px}
.card span{font-size:12px;color:var(--muted)}
.card h2,.panel h2{font-size:28px;margin:38px 0 10px}
.card p,.panel p{color:var(--muted);line-height:1.7}
.panel{margin:16px 0;min-height:240px}
footer{width:min(1180px,90vw);margin:80px auto 0;padding:30px 0 50px;border-top:1px solid var(--border);display:flex;justify-content:space-between;color:var(--muted)}
@media(max-width:760px){nav{display:none}.hero{padding-top:80px}.grid{grid-template-columns:1fr}footer{flex-direction:column;gap:8px}}