:root{--bg:#f8fafc;--surface:#fff;--soft:#eef2ff;--text:#0f172a;--muted:#64748b;--line:#e2e8f0;--brand:#4f46e5;--brand-dark:#3730a3;--hero:#0f172a;--hero-soft:#1e293b;--shadow:0 18px 45px rgba(15,23,42,.08);--max:1160px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans KR",Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.65}a{color:inherit}.container{width:min(calc(100% - 40px),var(--max));margin-inline:auto}.skip-link{position:fixed;top:12px;left:12px;z-index:100;transform:translateY(-160%);padding:10px 14px;border-radius:10px;background:#fff;color:var(--text);font-weight:700}.skip-link:focus{transform:translateY(0)}.hero{position:relative;overflow:hidden;color:#fff;background:radial-gradient(circle at 85% 20%,rgba(99,102,241,.55),transparent 28%),radial-gradient(circle at 12% 72%,rgba(14,165,233,.24),transparent 28%),linear-gradient(135deg,var(--hero),var(--hero-soft))}.hero:after{content:"";position:absolute;width:430px;height:430px;right:-180px;bottom:-250px;border:1px solid rgba(255,255,255,.18);border-radius:50%}.nav{display:flex;align-items:center;justify-content:space-between;min-height:76px;border-bottom:1px solid rgba(255,255,255,.12)}.brand{text-decoration:none;font-weight:800;letter-spacing:-.02em}.nav-links{display:flex;gap:24px}.nav-links a{color:rgba(255,255,255,.8);text-decoration:none;font-size:.95rem}.nav-links a:hover{color:#fff}.hero-content{position:relative;z-index:1;padding-block:92px 84px}.eyebrow{margin:0 0 12px;color:#c7d2fe;font-size:.8rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.eyebrow.dark{color:var(--brand)}h1,h2,h3,p{margin-top:0}h1{max-width:780px;margin-bottom:22px;font-size:clamp(2.5rem,6vw,5rem);line-height:1.09;letter-spacing:-.055em}h2{margin-bottom:12px;font-size:clamp(2rem,4vw,3.2rem);line-height:1.16;letter-spacing:-.045em}h3{margin-bottom:10px;font-size:1.25rem;line-height:1.35;letter-spacing:-.025em}.hero-description{max-width:680px;margin-bottom:32px;color:rgba(255,255,255,.75);font-size:1.08rem}.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.primary-button,.secondary-button,.support-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:14px;text-decoration:none;font-weight:750;transition:transform .18s ease,background .18s ease}.primary-button{background:#fff;color:var(--text)}.secondary-button{border:1px solid 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16px;color:var(--muted);background:var(--surface);font:inherit;font-weight:700;cursor:pointer}.filter-button:hover,.filter-button.active{border-color:var(--brand);color:#fff;background:var(--brand)}.app-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.app-card{display:flex;gap:16px;min-height:260px;padding:24px;border:1px solid var(--line);border-radius:18px;background:var(--surface);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}.app-card:hover{transform:translateY(-4px);border-color:#c7d2fe;box-shadow:var(--shadow)}.app-card.hidden{display:none}.app-icon{display:grid;flex:0 0 52px;width:52px;height:52px;place-items:center;border-radius:16px;background:var(--soft);font-size:1.55rem}.app-content{display:flex;flex:1;flex-direction:column}.category{display:inline-block;margin-bottom:8px;color:var(--brand);font-size:.76rem;font-weight:800}.app-content p{margin-bottom:18px;color:var(--muted);font-size:.94rem}.play-link{display:inline-flex;align-items:center;gap:6px;width:fit-content;margin-top:auto;color:var(--brand-dark);text-decoration:none;font-weight:800;font-size:.92rem}.play-link:hover{text-decoration:underline}.about-section{padding-block:82px;background:#fff;border-block:1px solid var(--line)}.about-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:70px;align-items:start}.about-copy{color:var(--muted);font-size:1.04rem}.about-copy p:last-child{margin-bottom:0}.support-section{padding-block:80px}.support-card{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:42px;border-radius:28px;color:#fff;background:radial-gradient(circle at 100% 0,rgba(99,102,241,.7),transparent 35%),var(--hero)}.support-card h2{margin-bottom:10px;font-size:clamp(1.8rem,4vw,2.8rem)}.support-card p{max-width:700px;margin-bottom:0;color:rgba(255,255,255,.72)}.support-button{flex:0 0 auto;background:#fff;color:var(--text)}.footer{color:#fff;background:#020617}.footer-content{display:flex;justify-content:space-between;gap:32px;padding-block:46px 30px}.footer-content p{margin:8px 0 0;color:#94a3b8;font-size:.9rem}.footer-links{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-start}.footer-links a{color:#cbd5e1;text-decoration:none;font-size:.92rem}.footer-links a:hover{color:#fff}.copyright{display:flex;justify-content:space-between;gap:20px;padding-block:20px;border-top:1px solid #1e293b;color:#64748b;font-size:.82rem}@media(max-width:900px){.app-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.about-grid{grid-template-columns:1fr;gap:24px}}@media(max-width:680px){.container{width:min(calc(100% - 28px),var(--max))}.nav{min-height:66px}.nav-links{gap:14px}.hero-content{padding-block:70px 64px}.stats{gap:28px}.apps-section{padding-block:66px}.section-heading,.support-card,.footer-content,.copyright{align-items:flex-start;flex-direction:column}.app-grid{grid-template-columns:1fr}.app-card{min-height:220px}.support-card{padding:30px 24px}.support-button{width:100%}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}