*{box-sizing:border-box}body{margin:0;font:16px system-ui,-apple-system,sans-serif;color:#1d2d39;background:#eef3f6}header{background:#234d68;color:white;display:flex;align-items:center;justify-content:space-between;padding:12px max(12px,env(safe-area-inset-left));gap:8px}header strong{font-size:21px}.head,.row{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}main{max-width:1050px;margin:auto;padding:12px}.card{background:white;border:1px solid #cdd9e0;border-radius:4px;padding:12px;margin-bottom:12px}h2{font-size:19px;margin:5px 0 12px}h3{font-size:16px;margin:18px 0 6px}button,select,input[type=number]{font:inherit;border:1px solid #9cb0bc;border-radius:2px;background:white;color:#193347;padding:8px;min-height:44px}button{cursor:pointer;background:#234d68;color:white;border-color:#234d68}button.secondary{background:#f1f5f7;color:#193347}button.danger{background:#fff2f0;color:#9b3028;border-color:#e7b7b0}button:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #e69d36;outline-offset:2px}.head select{background:white}.head button{background:#fff;color:#234d68}.controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(155px,1fr));gap:12px;margin:12px 0}.controls label{display:flex;flex-direction:column;gap:6px}.controls input[type=range]{width:100%;min-height:44px}.thumbs{display:flex;gap:8px;overflow-x:auto;padding:8px 0}.thumb{position:relative;flex:0 0 94px;padding:4px;background:#f1f5f7;border:2px solid transparent;border-radius:4px;color:#193347}.thumb.selected{border-color:#234d68}.thumb img{width:100%;height:104px;object-fit:contain}.thumb small{display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.empty{text-align:center;padding:28px 8px;color:#526573}.preview{background:#dce5eb;text-align:center;padding:12px;overflow:auto}.preview canvas{max-width:100%;height:auto;box-shadow:0 1px 5px #789;display:block;margin:auto}.hint,.version{font-size:13px;color:#506878}.check{display:flex;align-items:center;gap:8px}.check input{width:20px;height:20px}#status{min-height:20px}#settings p{line-height:1.5}#settings .version{text-align:right;border-top:1px solid #ddd;padding-top:12px}@media(max-width:400px){header strong{font-size:18px}main{padding:6px}.card{padding:9px}}

.corner-panel{margin:12px 0;border:1px solid #cdd9e0;border-radius:4px;padding:10px}.corner-panel summary{cursor:pointer;font-weight:600;min-height:36px}.corner-panel canvas{display:block;max-width:100%;height:auto;margin:10px auto;touch-action:none}.corner-fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:8px;margin:12px 0}.corner-fields label{font-size:13px;display:flex;flex-direction:column;gap:3px}.corner-fields input{width:100%}
.extra-vertex[hidden]{display:none}.vertex-select{display:flex;align-items:center;gap:12px;margin:10px 0}.vertex-select select{min-width:80px}

/* v0.6: compact batch workflow */
.batch-bar{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap;margin:8px 0}.batch-bar span{margin-right:auto;font-weight:600}.thumbs{gap:10px}.thumb{flex-basis:112px}.thumb img{height:100px}.editor-top{margin-bottom:8px}.editor-top h2{margin:4px 0}.editing-layout{display:grid;grid-template-columns:minmax(285px,380px) minmax(0,1fr);align-items:start;gap:16px}.editing-tools{min-width:0}.editing-tools .controls{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.editing-tools .controls label{font-size:13px}.editing-preview{min-width:0;position:sticky;top:8px}.preview-title{font-weight:600;margin:4px 0 8px}.editing-preview .preview{max-height:78vh;overflow:auto}.editing-preview canvas{max-height:72vh;width:auto;max-width:100%;object-fit:contain}.corner-panel{margin-top:8px}.corner-fields{grid-template-columns:repeat(4,minmax(0,1fr))}.corner-fields input{padding:5px;min-width:0}.editor-top button{min-height:40px}@media(max-width:740px){.editing-layout{grid-template-columns:minmax(0,1fr)}.editing-preview{position:static;grid-row:1}.editing-preview .preview{max-height:50vh}.editing-preview canvas{max-height:46vh}.editing-tools .controls{grid-template-columns:repeat(2,minmax(0,1fr))}.editor-top .row{justify-content:center}.corner-fields{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(max-width:380px){.editing-tools .controls{grid-template-columns:repeat(2,minmax(0,1fr))}.batch-bar button{flex:1 1 auto}.corner-fields{grid-template-columns:repeat(2,minmax(0,1fr))}}