*{box-sizing:border-box}
[hidden]{display:none!important}
:root{font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;color:#172033;background:#e9edf2}
body{margin:0;min-height:100vh}
button,input,textarea{font:inherit}
button{cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.45}
.icon{display:inline-flex;align-items:center;justify-content:center;width:18px;font-weight:700}
.topbar{height:64px;background:#172033;color:white;display:flex;align-items:center;justify-content:space-between;padding:0 20px;gap:20px}
.topbar strong{display:block;font-size:17px}.topbar small{display:block;font-size:11px;opacity:.65;margin-top:2px}
.top-actions{display:flex;gap:8px}.top-actions button{padding:9px 15px;border-radius:7px;border:1px solid #fff}
.primary{background:#fff;color:#172033}.secondary{background:transparent;color:#fff}.primary:disabled{background:#aab3c1;color:#566173;border-color:#aab3c1}
.layout{display:grid;grid-template-columns:285px minmax(0,1fr) 285px;min-height:calc(100vh - 64px)}
.sidebar{background:#fff;border-right:1px solid #d6dde6;overflow:auto}
.layers-sidebar{border-right:0;border-left:1px solid #d6dde6}
.sidebar section{padding:17px;border-bottom:1px solid #e5eaf0}
.sidebar h3{font-size:12px;text-transform:uppercase;letter-spacing:.07em;color:#657387;margin:0 0 11px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.template,.wide,.file-button{width:100%;padding:9px 10px;border:1px solid #d2d9e2;background:#fff;border-radius:7px;text-align:left;font-size:13px;margin-bottom:7px}
.template{text-align:center}.template:hover,.wide:hover,.file-button:hover{background:#f5f7fa}
.file-button{display:block;cursor:pointer}.file-button input{display:none}
.row{display:flex;align-items:center;justify-content:space-between;font-size:13px;margin-bottom:9px}
.row input{width:45px;height:31px;padding:2px}
label{font-size:12px;display:block;margin-bottom:9px}textarea,input[type=number]{width:100%;border:1px solid #ccd5df;border-radius:6px;padding:7px;margin-top:4px}
input[type=color]{border:1px solid #ccd5df;border-radius:5px;background:white}
.two{display:grid;grid-template-columns:1fr 1fr;gap:8px}.two input[type=color]{width:100%;height:34px;padding:2px}
.danger{border-color:#e0a1a1;color:#b42318}.hint{font-size:11px;color:#748196;line-height:1.5;margin:0}
.section-title-row{display:flex;align-items:center;justify-content:space-between}.section-title-row small{font-size:10px;color:#8a96a8;margin-bottom:11px}
.layers{display:flex;flex-direction:column;gap:6px}.empty-layers{font-size:11px;color:#8a96a8;margin:2px 0}
.layer{display:grid;gap:5px;border:1px solid #d8dfe8;border-radius:7px;padding:6px;background:#fff;transition:border-color .15s,box-shadow .15s,opacity .15s}
.layer.active{border-color:#1677ff;background:#eef6ff}.layer.dragging{opacity:.45}.layer.drag-over{border-color:#1677ff;box-shadow:0 0 0 2px #1677ff33}
.layer-head{display:grid;grid-template-columns:22px 22px minmax(0,1fr);align-items:center;gap:3px}.layer-grip{cursor:grab;color:#8491a3;text-align:center;font-size:17px;line-height:1}.layer-grip:active{cursor:grabbing}.layer-type{font-size:12px;text-align:center;color:#56657a;font-weight:700}
.layer-name{min-width:0;width:100%;border:1px solid transparent;border-radius:5px;background:transparent;padding:5px;font-size:12px;color:#273449}.layer-name:hover{border-color:#d5dce5;background:#fff}.layer-name:focus{outline:2px solid #1677ff55;border-color:#1677ff;background:#fff}
.layer-action{height:28px;border:1px solid #d5dce5;border-radius:5px;background:#fff;color:#536176;padding:0;font-size:13px}.layer-action:hover:not(:disabled){background:#edf1f6}.layer-action.is-off{color:#9aa5b4;background:#f4f6f8}.layer-delete{color:#b42318}
.workspace{min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:28px;background:#e7ebf0}
.canvas-frame{width:100%;max-width:1100px;box-shadow:0 18px 50px rgba(15,23,42,.18)}
.canvas-frame,#previewImage{background:repeating-conic-gradient(#ddd 0% 25%,#fff 0% 50%) 0/20px 20px}
canvas{display:block;width:100%;height:auto;touch-action:none;outline:none}
.status{width:100%;max-width:1100px;display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;color:#68768a;font-size:11px;margin-top:11px}
select{width:100%;padding:8px;border:1px solid #ccd5df;border-radius:6px}
.layer-tools{display:flex;gap:6px}.layer-tools button{min-width:32px}
dialog{width:min(850px,94vw);max-height:94vh;overflow:auto;border:0;border-radius:12px;padding:24px}dialog::backdrop{background:#17203399}dialog img{display:block;width:100%;height:auto}dialog button{padding:10px;margin:6px;border-radius:6px;border:1px solid #ccd5df}
.topbar{height:auto;min-height:64px;flex-wrap:wrap;padding:12px 20px}.top-actions{flex-wrap:wrap}
@media(max-width:1050px){.layout{grid-template-columns:250px minmax(0,1fr) 250px}.workspace{padding:18px}}
@media(max-width:900px){.layout{grid-template-columns:1fr}.sidebar{order:2;border:0;border-top:1px solid #d6dde6}.layers-sidebar{order:3}.workspace{order:1;padding:12px}.topbar{padding:11px 12px}.top-actions button{font-size:12px;padding:9px}.status{font-size:10px}}