*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:Noto Sans KR,sans-serif;background:linear-gradient(165deg,#071525,#0c2d4a 38%,#0e4d5e 72%,#0a6b6b);background-attachment:fixed;color:#f0f9ff;-webkit-font-smoothing:antialiased}#root{min-height:100%}button{font:inherit;border:none;background:none;cursor:pointer}a{color:inherit;text-decoration:none}.app{position:relative;min-height:100vh;max-width:520px;margin:0 auto;padding:clamp(1.75rem,6vw,2.75rem) clamp(1rem,4vw,1.5rem) clamp(2rem,7vw,3rem);overflow:hidden}.app-glow{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;background:radial-gradient(ellipse 80% 50% at 50% -10%,rgba(94,234,212,.18),transparent 60%),radial-gradient(ellipse 60% 40% at 100% 80%,rgba(56,189,248,.12),transparent 55%),radial-gradient(ellipse 50% 35% at 0% 60%,rgba(14,165,233,.1),transparent 50%)}.header{position:relative;z-index:1;text-align:center;margin-bottom:clamp(1.75rem,5vw,2.5rem)}.title{font-size:clamp(1.85rem,7vw,2.35rem);font-weight:800;letter-spacing:-.03em;line-height:1.2;color:#fff}.subtitle{margin-top:.5rem;font-size:clamp(.65rem,2.2vw,.75rem);font-weight:500;color:#5eead4;letter-spacing:.28em;text-transform:uppercase}.tagline{margin-top:.85rem;font-size:clamp(.88rem,3vw,.95rem);font-weight:400;color:#ffffffb8;letter-spacing:-.01em}.grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(.75rem,3vw,1rem)}.card{display:flex;flex-direction:column;align-items:center;justify-content:center;background:#ffffff14;border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:20px 10px 16px;text-align:center;cursor:pointer;transition:transform .28s cubic-bezier(.22,1,.36,1),box-shadow .28s ease,border-color .28s ease,background .28s ease}.card:hover{transform:translateY(-6px);background:#ffffff1c;border-color:#ffffff38;box-shadow:0 14px 40px #001e3259}.card:active{transform:translateY(-2px);transition-duration:.12s}.icon-circle{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 10px;font-size:26px}.app-name{font-size:14px;font-weight:700;color:#fff;margin:0 0 4px}.app-desc{font-size:11px;color:#ffffff80;margin:0;line-height:1.45}.card--link:focus-visible,.card:focus-visible{outline:2px solid #5eead4;outline-offset:3px}@media (max-width: 360px){.icon-circle{width:48px;height:48px;font-size:22px}.app-desc{font-size:10px}}@media (prefers-reduced-motion: reduce){.card{transition:border-color .2s ease,background .2s ease}.card:hover{transform:none}}