:root{font-family:Inter,system-ui,sans-serif;color:#172334;background:#f7f9fc}*{box-sizing:border-box}body{margin:0}main{max-width:920px;margin:auto;padding:32px 24px}header{margin-bottom:28px}h1{font-size:clamp(28px,5vw,40px);line-height:1.13;letter-spacing:-1px;margin:8px 0 16px}p{line-height:1.6;color:#526174}.eyebrow{font-size:12px;font-weight:800;letter-spacing:2px;color:#1761b0}form{background:white;border:1px solid #dce3ec;border-radius:18px;padding:24px}label{display:grid;gap:8px;font-size:14px;font-weight:650}input[type=file]{width:100%;padding:16px;border:1px dashed #9cb0c8;border-radius:10px}.upload span,.notice{font-size:12px;color:#607086;line-height:1.6}.choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:24px 0}select{width:100%;min-height:46px;border:1px solid #cbd5e1;border-radius:8px;padding:8px;background:white;color:inherit;font:inherit}fieldset{border:0;padding:0;margin:24px 0}legend{font-weight:650;font-size:14px;margin-bottom:12px}#colors{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:10px}.color{padding:5px;border:2px solid transparent;border-radius:10px;background:#f1f4f8;color:inherit;cursor:pointer}.color[aria-pressed=true]{border-color:#1761b0;background:#eaf3ff}.color img{display:block;width:100%;aspect-ratio:1;object-fit:cover;border-radius:5px}.color span{display:block;font-size:12px;padding:7px 2px}.consent{display:flex;align-items:flex-start;font-size:12px;line-height:1.6;font-weight:400;gap:9px}.consent input{margin-top:5px;flex-shrink:0}#generate{width:100%;padding:16px;border:0;border-radius:10px;color:white;background:#1761b0;font-size:16px;font-weight:700;cursor:pointer;margin-top:16px}#generate:disabled{opacity:.5;cursor:default}#source,#preview{display:block;width:100%;max-height:640px;object-fit:contain;border-radius:12px;margin:16px 0}#source{max-height:220px}#result{margin-top:28px}a{color:#1761b0}footer{margin-top:28px}#advice{font-size:13px;color:#775416}[hidden]{display:none!important}@media(max-width:560px){main{padding:24px 14px}form{padding:16px}.choices{grid-template-columns:1fr}#colors{grid-template-columns:repeat(3,minmax(0,1fr))}}