.app{width: min(1280px, calc(100% - 32px));margin: 22px auto 20px;background:#fffdf8;border:1px solid #e2d8c8;border-radius:14px;box-shadow:0 8px 30px rgba(20,30,50,.08);display:flex;flex-direction:column;overflow:}
.intro{padding: 16px 18px 12px;}
h1{font-size: 20px; margin: 0 0 5px;}
.intro p {
    color: var(--muted);
    font-size: 13px;
    margin: 0;
}
.card{width: min(1240px, calc(100% - 40px));margin: 20px auto;background:#fffdf8;border:1px solid #e2d8c8;border-radius:14px;box-shadow:0 5px 20px #00000008;padding:24px}.layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr);gap:26px}.dropzone{display:block;border:2px dashed #c8c8c8;border-radius:12px;padding:28px 18px;text-align:center;background:#fafafa;cursor:pointer}.dropzone:hover,.dropzone.dragover{border-color:#222;background:#f2f2f2}.drop-icon{font-size:34px;line-height:1.2;margin-bottom:8px}.dropzone strong{display:block}.dropzone p{margin:5px 0 0;color:#777;font-size:13px}.dropzone input{display:none}.file-info{font-size:13px;color:#555;margin-top:10px;overflow-wrap:anywhere}.field{margin-bottom:17px}label{display:block;font-size:14px;font-weight:700;margin-bottom:7px}input[type=number],select{width:100%;min-width:0;font:inherit;border:1px solid #ccc;border-radius:8px;padding:10px 11px;background:#fff;color:#171717}.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.hint{font-size:12px;color:#777;margin-top:5px}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}button{font:inherit;font-weight:700;border:1px solid #111;border-radius:8px;padding:11px 15px;cursor:pointer}button.primary{background:#111;color:#fff}button.secondary{background:#fff;color:#111}button:disabled{opacity:.45;cursor:not-allowed}.preview{min-width:0;min-height:350px;background:#fafafa;border:1px solid #e5e5e5;border-radius:12px;padding:20px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.preview h2{font-size:18px;margin:0 0 5px}.preview p{font-size:13px;color:#777;margin:0 0 17px}.stage{width:100%;min-height:210px;display:flex;align-items:center;justify-content:center;overflow:hidden}#preview{max-width:100%;max-height:360px;object-fit:contain}#empty{width:min(230px,100%);aspect-ratio:1;border:1px dashed #ccc;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#888;padding:20px;font-size:14px}.info,.status{font-size:13px;color:#555;margin-top:12px;overflow-wrap:anywhere}.status{min-height:20px;margin-top:8px}footer{text-align:center;color:#777;font-size:12px;padding:0 20px 26px}
@media(max-width:760px){.card{padding:16px}.layout{grid-template-columns:minmax(0,1fr);gap:20px}.preview{min-height:270px;padding:17px 13px}.stage{min-height:180px}#preview{max-height:320px}.actions button{flex:1 1 calc(50% - 8px);min-width:0}}
@media(max-width:420px){.card{padding:13px;border-radius:11px}.dropzone{padding:23px 12px}.row{grid-template-columns:1fr;gap:0}.field{margin-bottom:14px}.actions{display:grid;grid-template-columns:1fr 1fr}.actions #apply{grid-column:1/-1}.actions button{width:100%;padding:11px 8px;font-size:14px}.preview{min-height:230px}}