:root{--bg:#f6f5f2;--fg:#1c1c1c;--panel:#fff;--border:#d9d6cf;--accent:#2f6f4f}@media (prefers-color-scheme:dark){:root{--bg:#1a1a1a;--fg:#ececec;--panel:#242424;--border:#3a3a3a;--accent:#6fd0a0}}*{box-sizing:border-box}body{margin:0}.app{min-height:100vh;background:var(--bg);color:var(--fg);font:14px/1.5 system-ui,sans-serif}header{padding:16px 24px;border-bottom:1px solid var(--border)}h1{margin:0;font-size:18px}main{display:grid;grid-template-columns:340px 1fr;grid-gap:16px;gap:16px;padding:16px 24px}@media (max-width:720px){main{grid-template-columns:1fr}}.left,.panel{display:flex;flex-direction:column;gap:12px}fieldset{border:1px solid var(--border);border-radius:8px;background:var(--panel)}legend{padding:0 6px;font-weight:600}.field{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:3px 0}.field input[type=number],.field select{width:120px}.dropzone{border:2px dashed var(--border);border-radius:8px;padding:24px;text-align:center;cursor:pointer;background:var(--panel)}.dropzone.over{border-color:var(--accent)}.dropzone img{max-height:160px}.canvas-wrap{height:60vh;min-height:360px;border:1px solid var(--border);border-radius:8px;overflow:hidden;background:var(--panel);display:flex;flex-direction:column}.canvas-viewport{flex:1 1;min-height:0}.preview-toolbar{display:flex;gap:16px;padding:6px 10px;border-bottom:1px solid var(--border);flex-wrap:wrap}.preview-toolbar .field{padding:0;gap:6px}.stats{display:flex;gap:16px;padding:8px 0}.stats .ok{color:var(--accent)}.stats .bad{color:#c0392b}button{padding:10px 16px;border:0;border-radius:8px;background:var(--accent);color:#fff;font-weight:600;cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}