:root{font-family:Pretendard,Noto Sans KR,Apple SD Gothic Neo,sans-serif;line-height:1.5;font-weight:400;color:#1f253d;background:radial-gradient(circle at 15% 20%,#ffe5b4 0%,transparent 34%),radial-gradient(circle at 84% 12%,#c8e5ff 0%,transparent 36%),linear-gradient(160deg,#fff6e7,#eef4ff);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;background:inherit}#root{min-height:100vh}.page{min-height:100vh;padding:2rem 1rem;display:grid;place-items:center}.card{width:min(100%,540px);background:#ffffffe6;border:1px solid rgba(0,0,0,.08);border-radius:20px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);box-shadow:0 24px 48px #19224329;padding:1.5rem}.eyebrow{margin:0;color:#83531f;text-transform:uppercase;letter-spacing:.08em;font-size:.72rem;font-weight:700}h1{margin:.45rem 0 0;font-size:1.55rem;line-height:1.3}.description{margin:.6rem 0 0;color:#5f657a}.warning{margin:.7rem 0 0;padding:.65rem .75rem;border-radius:10px;background:#fff1f1;color:#a12a2a;font-size:.88rem}.form{margin-top:1.2rem;display:grid;gap:1rem}.metrics{display:grid;gap:.9rem;grid-template-columns:1fr 1fr}.field{display:grid;gap:.45rem}.field span{font-size:.9rem;font-weight:600;color:#2e3550}.field input{width:100%;border-radius:12px;border:1px solid #d5d9e6;background:#fff;color:#151a2d;padding:.72rem .85rem;font:inherit}.field input:focus{outline:2px solid #295bf0;outline-offset:1px}.preview{border-radius:14px;border:1px dashed #bac2dc;min-height:220px;display:grid;place-items:center;overflow:hidden;background:#f7f8fe;color:#6b7188;font-size:.92rem}.preview img{width:100%;height:100%;object-fit:cover}.message{margin:0;border-radius:10px;padding:.6rem .75rem;font-size:.9rem}.message.success{background:#e9f9ef;color:#1f7a3f}.message.error{background:#fff1f1;color:#a12a2a}button[type=submit]{border:0;border-radius:12px;padding:.9rem 1rem;font:inherit;font-weight:700;background:linear-gradient(135deg,#2468ff,#19a0cc);color:#fff;cursor:pointer}button[type=submit]:hover{filter:brightness(.96)}button[type=submit]:disabled{opacity:.55;cursor:not-allowed}@media(max-width:560px){.metrics{grid-template-columns:1fr}.card{padding:1.25rem}}