:root{--bg:#eef1f5;--panel:#fff;--border:#dfe4ec;--text:#1d2430;--muted:#74808f;--accent:#2563eb;--danger:#c23b3b;color:var(--text);-webkit-font-smoothing:antialiased;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg)}.app{height:100%;display:flex}.viewport{flex:1;min-width:0;position:relative}.viewport-hint{border:1px solid var(--border);color:var(--muted);pointer-events:none;background:#ffffffd9;border-radius:999px;margin:0;padding:8px 14px;font-size:13px;position:absolute;bottom:24px;left:50%;transform:translate(-50%)}.canvas{touch-action:none;background:#f4f6f9;width:100%;height:100%;display:block}.canvas:active{cursor:grabbing}.canvas-tools{gap:8px;display:flex;position:absolute;bottom:16px;right:16px}.canvas-tools .ghost-button{background:#ffffffe6;width:auto;padding:7px 14px}.hint{color:var(--muted);opacity:.8;margin:-2px 0 0;font-size:12px;line-height:1.4}.sidebar{background:var(--panel);border-right:1px solid var(--border);flex-direction:column;flex:none;gap:4px;width:272px;padding:20px 20px 0;display:flex;overflow:hidden}.sidebar-header h1{letter-spacing:-.01em;margin:0;font-size:16px;font-weight:650}.sidebar-header .muted{margin:2px 0 0}.section{border-top:1px solid var(--border);padding:16px 0}.section h2{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0 0 10px;font-size:11px;font-weight:650}.sidebar-footer{margin-top:auto;padding:16px 0 20px}.muted{color:var(--muted);margin:0;font-size:13px;line-height:1.45}.stack{flex-direction:column;gap:8px;display:flex}.rule{border:0;border-top:1px solid var(--border);width:100%;margin:4px 0}.add-grid{grid-template-columns:1fr 1fr;gap:8px;display:grid}button{font:inherit;cursor:pointer;border-radius:8px;transition:background .12s,border-color .12s}.add-button{border:1px solid var(--border);color:var(--text);background:#f5f7fa;padding:9px 10px;font-size:13px}.add-button:hover{background:#e8edf5;border-color:#c6d0de}.ghost-button{border:1px solid var(--border);width:100%;color:var(--muted);background:0 0;padding:9px 10px;font-size:13px}.ghost-button:hover:not(:disabled){background:#f5f7fa}.ghost-button:disabled{opacity:.45;cursor:default}.button-row{grid-template-columns:1fr 1fr;gap:8px;margin-top:4px;display:grid}.button-row button{margin-top:0}.danger-button{color:var(--danger);background:#fdf2f2;border:1px solid #f0d4d4;margin-top:4px;padding:9px 10px;font-size:13px}.danger-button:hover{background:#fae7e7}.field{justify-content:space-between;align-items:center;gap:10px;font-size:13px;display:flex}.field-label{color:var(--muted)}.field-input{border:1px solid var(--border);background:#fff;border-radius:7px;align-items:center;gap:4px;padding:0 8px 0 0;display:inline-flex}.field-input:focus-within{border-color:var(--accent)}.field-input input{width:72px;font:inherit;text-align:right;color:var(--text);background:0 0;border:0;outline:0;padding:7px 8px;font-size:13px}.field-unit{color:var(--muted);font-size:12px}.checkbox{color:var(--muted);align-items:center;gap:8px;padding-top:2px;font-size:13px;display:flex}.checkbox input{accent-color:var(--accent)}.canvas-tools .ghost-button[aria-pressed=true]{border-color:var(--accent);color:var(--accent)}.cut-list{background:var(--panel);border:1px solid var(--border);border-radius:10px;flex-direction:column;gap:10px;width:min(460px,100% - 32px);max-height:calc(100% - 126px);padding:14px 16px;display:flex;position:absolute;top:62px;right:16px;overflow-y:auto;box-shadow:0 6px 24px #1d243014}.cut-list-header{align-items:baseline;gap:8px;display:flex}.cut-list-header h2{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0;font-size:11px;font-weight:650}.icon-button{color:var(--muted);background:0 0;border:0;margin-left:auto;padding:0 6px;font-size:18px;line-height:1}.icon-button:hover{color:var(--text)}.cut-list table{border-collapse:collapse;width:100%;font-size:13px}.cut-list th{text-align:left;color:var(--muted);border-bottom:1px solid var(--border);padding:0 6px 6px;font-size:11px;font-weight:600}.cut-list td{border-bottom:1px solid var(--border);padding:6px}.cut-list th:first-child,.cut-list td:first-child{padding-left:0}.cut-list .num{text-align:right;font-variant-numeric:tabular-nums}.history-tools{gap:8px;display:flex;position:absolute;top:16px;left:16px}.history-tools .ghost-button{width:auto;color:var(--text);background:#ffffffe6;align-items:center;gap:8px;padding:7px 12px;display:inline-flex}button kbd{font:inherit;color:var(--muted);font-size:11px}.danger-button kbd{color:inherit;opacity:.7}.save-status{color:var(--muted);opacity:.8;margin:2px 0 0;font-size:12px}.save-status-error{color:var(--danger);opacity:1}.add-button:disabled{opacity:.45;cursor:default}.add-button:disabled:hover{border-color:var(--border);background:#f5f7fa}.hint-error{color:var(--danger);opacity:1}.app-title{justify-content:space-between;align-items:center;gap:8px;display:flex}.app-title h1{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-size:12px;font-weight:650}.app-title .ghost-button{width:auto;color:var(--text);padding:5px 10px}.editable-name{max-width:100%;color:var(--text);text-align:left;text-overflow:ellipsis;white-space:nowrap;background:0 0;border:1px solid #0000;border-radius:6px;margin:0 -4px;padding:2px 4px;display:block;overflow:hidden}.editable-name:hover{border-color:var(--border)}.editable-name-input{border:1px solid var(--accent);width:100%;font:inherit;color:var(--text);border-radius:6px;outline:0;margin:0 -4px;padding:2px 4px}.project-title{letter-spacing:-.01em;margin-top:8px;font-size:17px;font-weight:650}.overlay{z-index:10;background:#1d243040;justify-content:center;align-items:flex-start;padding:10vh 16px 16px;display:flex;position:fixed;inset:0}.projects-panel{background:var(--panel);border:1px solid var(--border);border-radius:12px;flex-direction:column;gap:12px;width:min(560px,100%);max-height:80vh;padding:18px 20px;display:flex;box-shadow:0 12px 40px #1d24302e}.projects-header{align-items:center;gap:10px;display:flex}.projects-header h2{margin:0 auto 0 0;font-size:16px;font-weight:650}.projects-header .icon-button{margin-left:0}.project-list{border-top:1px solid var(--border);margin:0;padding:0;list-style:none;overflow-y:auto}.project-row{border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:10px 8px;display:flex}.project-row-open{background:#f5f8fe}.project-info{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.project-info .muted{font-size:12px}.project-name{color:var(--text);text-align:left;text-overflow:ellipsis;white-space:nowrap;background:0 0;border:0;padding:0;font-size:14px;font-weight:600;overflow:hidden}.project-name:hover{color:var(--accent)}.project-actions{flex:none;align-items:center;gap:6px;display:flex}.project-actions .ghost-button,.project-actions .danger-button{width:auto;margin:0;padding:5px 10px;font-size:12px}.view-switcher{border:1px solid var(--border);background:#ffffffe6;border-radius:9px;gap:4px;padding:3px;display:flex;position:absolute;top:16px;right:16px}.view-switcher .ghost-button{width:auto;color:var(--muted);border-color:#0000;padding:5px 10px}.view-switcher .ghost-button[aria-pressed=true]{color:var(--accent);background:#eef3fd}.parts-list{max-height:220px;margin:0;padding:0;list-style:none;overflow-y:auto}.part-row{width:100%;color:var(--text);text-align:left;background:0 0;border:0;border-radius:6px;justify-content:space-between;gap:8px;padding:6px 8px;font-size:13px;display:flex}.part-row:hover{background:#f5f7fa}.part-row-selected,.part-row-selected:hover{color:var(--accent);background:#eef3fd}.part-size{color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:12px}.preview-3d{position:absolute;inset:0}.preview-3d canvas{display:block}.canvas-tools-left{left:16px;right:auto}.choice{gap:14px;display:flex}.part-row-clash span:first-child{color:var(--danger)}.add-button[aria-pressed=true]{border-color:var(--accent);color:var(--accent);background:#eef3fd}.box-button{text-align:left;flex-direction:column;align-items:flex-start;gap:2px;width:100%;display:flex}.box-button .muted{font-size:12px}.color-field{align-items:center;gap:8px;display:inline-flex}.color-field input[type=color]{border:1px solid var(--border);cursor:pointer;background:#fff;border-radius:6px;width:36px;height:28px;padding:2px}.link-button{color:var(--accent);background:0 0;border:0;padding:0;font-size:12px}.project-thumbnail{border:1px solid var(--border);background:#f4f6f9;border-radius:6px;flex:none;width:60px;height:60px}.project-name:disabled{color:var(--muted);cursor:default}.open-file-dialog{width:min(420px,100%)}.open-file-dialog h2{text-transform:none;letter-spacing:normal;color:var(--text);overflow-wrap:anywhere;margin:0;font-size:16px;font-weight:650}.choice-button{text-align:left;flex-direction:column;align-items:flex-start;gap:3px;padding:12px;display:flex}.choice-button strong{font-weight:600}.choice-button .hint{margin:0}.shortcuts-panel{width:min(420px,100% - 32px);top:auto;bottom:62px}.shortcuts-panel td:first-child{white-space:nowrap}.shortcuts-panel kbd{font:inherit;border:1px solid var(--border);background:#f5f7fa;border-radius:4px;padding:1px 6px;font-size:12px}.unit-switch{border:1px solid var(--border);background:#fff;border-radius:7px;gap:2px;padding:2px;display:inline-flex}.unit-switch button{color:var(--muted);background:0 0;border:0;border-radius:5px;padding:4px 9px;font-size:12px}.unit-switch button[aria-checked=true]{color:var(--accent);background:#eef3fd}.sidebar-body{flex-direction:column;flex:1;min-height:0;margin:4px -20px 0;padding:0 20px;display:flex;overflow-y:auto}.collapsible-body>.section,.collapsible-body>.stack>.section{padding:10px 0}.collapsible-body>.section:first-child{border-top:0;padding-top:0}.collapsible{border-top:1px solid var(--border)}.collapsible-header{text-align:left;width:100%;color:var(--text);background:0 0;border:0;align-items:center;gap:8px;padding:12px 0;display:flex}.collapsible-chevron{width:12px;height:12px;color:var(--muted);flex:none;transition:transform .12s}.collapsible-header[aria-expanded=true] .collapsible-chevron{transform:rotate(90deg)}.collapsible-title{font-size:13px;font-weight:650}.collapsible-badge{color:var(--muted);font-size:12px}.collapsible-alert{background:var(--danger);border-radius:50%;width:7px;height:7px}.collapsible-body{flex-direction:column;gap:10px;padding-bottom:16px;display:flex}.inspector{background:var(--panel);border-left:1px solid var(--border);flex:none;width:280px;padding:20px;overflow-y:auto}.inspector h2{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0 0 12px;font-size:11px;font-weight:650}.version-line{color:var(--muted);margin:2px 0 0;font-size:12px}.github-link{vertical-align:-2px;color:var(--muted);margin-left:8px;display:inline-flex}.github-link:hover{color:var(--text)}.update-notice{background:#eef3fd;border:1px solid #c7d7fb;border-radius:7px;align-items:center;gap:8px;margin:8px 0 2px;padding:6px 8px;font-size:12px;display:flex}.update-notice .icon-button{margin-left:auto;font-size:15px}.whats-new{width:min(520px,100%)}.whats-new h2,.whats-new h3{text-transform:none;letter-spacing:normal;color:var(--text)}.whats-new-body{overflow-y:auto}.whats-new-body h3{margin:4px 0 6px;font-size:14px;font-weight:650}.whats-new-body ul{margin:6px 0 14px;padding-left:18px;font-size:13px;line-height:1.5}.crash-screen{justify-content:center;align-items:center;height:100%;padding:16px;display:flex}.crash-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;flex-direction:column;gap:12px;width:min(480px,100%);padding:24px;display:flex}.crash-card h1{margin:0;font-size:18px}.crash-card p{color:var(--muted);margin:0;font-size:14px;line-height:1.5}.crash-card .add-button{align-self:flex-start;padding:9px 18px}.crash-card pre{white-space:pre-wrap;max-height:200px;font-size:11px;overflow:auto}