.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(0,1.15fr) minmax(280px,.85fr);gap:28px}.field{margin-bottom:18px}label{display:block;font-size:14px;font-weight:700;margin-bottom:7px}textarea,select{width:100%;font:inherit;border:1px solid #ccc;border-radius:8px;padding:11px 12px;background:#fff;color:#171717}textarea{min-height:150px;resize:vertical}textarea:focus,select:focus{outline:2px solid #aaa;outline-offset:1px}.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}input[type=color]{width:100%;height:43px;padding:4px;border:1px solid #ccc;border-radius:8px;background:#fff}.hint{font-size:12px;color:#777;margin-top:5px}.check{display:flex;align-items:center;gap:9px;font-size:14px;margin:2px 0 20px}.check input{accent-color:#111}.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:340px;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}#qrCanvas{width:min(100%,280px);height:auto;image-rendering:pixelated;background:#fff}#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}.status{min-height:20px;margin-top:12px;color:#555;font-size:13px;overflow-wrap:anywhere}
@media(max-width:760px){
.card{padding:16px;width: min(420px, calc(100% - 30px));}
.layout{grid-template-columns:minmax(0,1fr);gap:18px}
.preview{min-height:260px;padding:18px 14px}
#qrCanvas{width:min(100%,280px);height:auto}
.actions{gap:8px}
.actions button{flex:1 1 calc(50% - 8px);min-width:0;padding:11px 10px}
textarea{min-height:130px}
}
@media(max-width:420px){
.card{padding:13px;border-radius:11px;width: min(420px, calc(100% - 20px));}
.row{grid-template-columns:minmax(0,1fr);gap:0}
.field{margin-bottom:14px}
textarea,select{font-size:16px}
input[type=color]{height:46px}
.check{align-items:flex-start;line-height:1.4;margin-bottom:16px}
.check input{margin-top:4px;flex-shrink:0}
.actions{display:grid;grid-template-columns:1fr 1fr}
.actions button{width:100%;padding:11px 8px;font-size:14px}
.actions #generate{grid-column:1 / -1}
.preview{min-height:240px;padding:16px 12px}
#empty{max-width:210px}
.status{font-size:12px}
}