*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f172a;--surface: #1e293b;--surface-2: #293548;--border: #334155;--text: #f1f5f9;--text-muted: #94a3b8;--blue: #3b82f6;--blue-dim: rgba(59, 130, 246, .15);--blue-hover: #2563eb;--amber: #f59e0b;--amber-dim: rgba(245, 158, 11, .15);--red: #ef4444;--font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;overflow:hidden}.btn{display:inline-flex;align-items:center;gap:6px;cursor:pointer;font-family:inherit;font-size:14px;font-weight:500;border:1px solid transparent;border-radius:8px;padding:8px 14px;transition:background .12s,color .12s,border-color .12s;white-space:nowrap;text-decoration:none}.btn:disabled{opacity:.4;cursor:not-allowed;pointer-events:none}.btn-sm{font-size:13px;padding:6px 11px;border-radius:7px}.btn-ghost{background:transparent;color:var(--text-muted);border-color:transparent}.btn-ghost:hover{background:var(--surface-2);color:var(--text)}.btn-ghost-danger{background:transparent;color:var(--text-muted);border-color:transparent}.btn-ghost-danger:hover{background:#ef44441a;color:var(--red);border-color:#ef44444d}.btn-amber{background:var(--amber);color:#000;border-color:var(--amber)}.btn-amber:hover:not(:disabled){background:#d97706;border-color:#d97706}.btn-mode-amber{background:var(--surface-2);color:var(--text-muted);border-color:var(--border)}.btn-mode-amber:hover{color:var(--amber);border-color:var(--amber);background:var(--amber-dim)}.btn-mode-amber.active{background:var(--amber-dim);color:var(--amber);border-color:var(--amber)}.btn-mode-blue{background:var(--surface-2);color:var(--text-muted);border-color:var(--border)}.btn-mode-blue:hover:not(:disabled){color:var(--blue);border-color:var(--blue);background:var(--blue-dim)}.btn-mode-blue.active{background:var(--blue-dim);color:var(--blue);border-color:var(--blue)}.app{display:flex;flex-direction:column;height:100vh;height:100dvh;overflow:hidden}.topbar{display:flex;align-items:center;justify-content:space-between;padding:env(safe-area-inset-top,0px) 16px 0;min-height:calc(52px + env(safe-area-inset-top,0px));background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0;gap:12px}.topbar-left{display:flex;align-items:center;gap:8px}.topbar-title{font-size:16px;font-weight:600;color:var(--text);letter-spacing:-.01em}.topbar-right{display:flex;align-items:center;gap:6px}.workspace{display:flex;flex:1;overflow:hidden;min-height:0;padding-bottom:env(safe-area-inset-bottom,0px)}.canvas-area{flex:1;display:flex;align-items:center;justify-content:center;overflow:auto;background:#080e1a;position:relative;padding:16px}.canvas-wrapper{position:relative;display:flex;align-items:center;justify-content:center;max-width:100%;max-height:100%}.canvas-wrapper canvas{display:block;max-width:100%;max-height:calc(100dvh - 84px - env(safe-area-inset-top,0px) - env(safe-area-inset-bottom,0px));object-fit:contain;border-radius:4px;box-shadow:0 4px 32px #0009}.canvas-loading{color:var(--text-muted);font-size:14px;padding:40px}.canvas-hint{position:absolute;bottom:16px;left:50%;transform:translate(-50%);background:#000000bf;color:var(--hint-color, #fff);border:1px solid var(--hint-color, rgba(255,255,255,.2));padding:7px 16px;border-radius:20px;font-size:13px;font-weight:500;white-space:nowrap;pointer-events:none;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}.sidebar{width:260px;min-width:260px;background:var(--surface);border-left:1px solid var(--border);overflow-y:auto;flex-shrink:0}.sidebar-header{display:flex;align-items:center;gap:8px;padding:14px 16px 10px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);border-bottom:1px solid var(--border)}.sidebar-count{background:var(--surface-2);border:1px solid var(--border);color:var(--text-muted);font-size:11px;border-radius:10px;padding:1px 7px;font-weight:600}.sidebar-empty{font-size:13px;color:var(--text-muted);line-height:1.6;padding:12px 16px}.sidebar-empty strong{color:var(--text);font-weight:600}.measure-item{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--border);transition:background .1s}.measure-item.reference{background:#f59e0b0a}.measure-item:not(.reference):hover{background:var(--surface-2)}.measure-swatch{width:4px;min-height:36px;border-radius:2px;flex-shrink:0}.measure-swatch.amber{background:var(--amber)}.measure-swatch.blue{background:var(--blue)}.measure-info{flex:1;display:flex;flex-direction:column;gap:1px;min-width:0}.measure-label{font-size:11px;color:var(--text-muted);font-weight:600;text-transform:uppercase;letter-spacing:.04em}.measure-value{font-size:17px;font-weight:700;color:var(--text);letter-spacing:-.01em}.btn-delete{background:transparent;border:none;color:var(--text-muted);font-size:20px;line-height:1;padding:4px 8px;border-radius:6px;cursor:pointer;flex-shrink:0;transition:background .1s,color .1s}.btn-delete:hover{background:#ef44441f;color:var(--red)}.btn-edit{background:transparent;border:none;color:var(--text-muted);display:flex;align-items:center;justify-content:center;padding:5px 7px;border-radius:6px;cursor:pointer;flex-shrink:0;transition:background .1s,color .1s}.btn-edit:hover{background:var(--amber-dim);color:var(--amber)}.upload-screen{min-height:100vh;min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:max(32px,calc(env(safe-area-inset-top,0px) + 16px)) 24px max(32px,calc(env(safe-area-inset-bottom,0px) + 16px));background:var(--bg)}.upload-content{text-align:center;max-width:500px;width:100%}.upload-logo{margin-bottom:20px;display:flex;justify-content:center}.upload-logo-img{filter:invert(1);opacity:.9}.upload-content h1{font-size:36px;font-weight:800;letter-spacing:-.03em;margin-bottom:10px;background:linear-gradient(135deg,#f1f5f9,#94a3b8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.upload-content>p{color:var(--text-muted);font-size:16px;line-height:1.65;margin-bottom:32px;max-width:380px;margin-left:auto;margin-right:auto}.drop-zone{display:flex;flex-direction:column;align-items:center;gap:8px;border:2px dashed var(--border);border-radius:16px;padding:48px 32px;cursor:pointer;transition:border-color .2s,background .2s,color .2s;color:var(--text-muted);margin-bottom:32px}.drop-zone:hover,.drop-zone.dragging{border-color:var(--blue);background:var(--blue-dim);color:var(--text)}.drop-zone span{font-size:16px;font-weight:500}.drop-zone-sub{font-size:13px!important;font-weight:400!important;color:var(--text-muted)}.how-it-works{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}.step{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted)}.step-num{display:flex;align-items:center;justify-content:center;width:22px;height:22px;background:var(--surface-2);border:1px solid var(--border);border-radius:50%;font-size:11px;font-weight:700;color:var(--text);flex-shrink:0}.step-arrow{color:var(--border);font-size:16px}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000a6;display:flex;align-items:center;justify-content:center;z-index:200;padding:24px;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}.modal{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px;width:100%;max-width:400px;box-shadow:0 24px 64px #0009}.modal-header{display:flex;gap:14px;margin-bottom:20px}.modal-icon{display:flex;align-items:flex-start;padding-top:2px;flex-shrink:0}.modal-header h2{font-size:18px;font-weight:700;margin-bottom:4px;letter-spacing:-.01em}.modal-header p{font-size:14px;color:var(--text-muted);line-height:1.5}.modal-inputs{display:flex;gap:10px;margin-bottom:20px}.input-number{flex:1;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:10px 14px;color:var(--text);font-size:20px;font-weight:600;font-family:inherit;letter-spacing:-.01em;transition:border-color .15s;min-width:0}.input-number:focus{outline:none;border-color:var(--amber)}.input-select{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:10px 14px;color:var(--text);font-size:16px;font-family:inherit;cursor:pointer;transition:border-color .15s}.input-select:focus{outline:none;border-color:var(--amber)}.modal-actions{display:flex;gap:8px;justify-content:flex-end}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media(max-width:640px){.topbar-title{display:none}.topbar-right{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;flex-shrink:1;min-width:0}.topbar-right::-webkit-scrollbar{display:none}.topbar-left{flex-shrink:0}.sidebar{width:220px;min-width:220px}.measure-value{font-size:15px}.how-it-works{display:none}.upload-content h1{font-size:28px}.drop-zone{padding:36px 20px}}