:root{--bg:#f3f3f1;--panel:#fff;--border:#d9d9d4;--text:#22252a;--muted:#6b7078;--accent:#1e6fd9;--accent-soft:#e3eefc;--danger:#b3261e;--workspace:#e4e4e0;color:var(--text);background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,sans-serif;font-size:14px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}button{font:inherit;border:1px solid var(--border);background:var(--panel);color:var(--text);cursor:pointer;border-radius:6px;padding:5px 10px}button:hover:not(:disabled){border-color:var(--accent)}button:disabled{opacity:.45;cursor:default}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.active{background:var(--accent-soft);border-color:var(--accent)}button.icon{background:0 0;border:none;padding:0 6px;font-size:18px;line-height:1}input{font:inherit;border:1px solid var(--border);border-radius:4px;padding:4px 6px}.error{color:var(--danger)}.hint{color:var(--muted);margin:4px 0;font-size:12px}.home{max-width:760px;padding:calc(32px + env(safe-area-inset-top)) calc(16px + env(safe-area-inset-right)) calc(32px + env(safe-area-inset-bottom)) calc(16px + env(safe-area-inset-left));margin:0 auto}.home-actions{gap:8px;margin:8px 0 16px;display:flex}.install-hint,.info{background:var(--accent-soft);border-radius:8px;padding:8px 12px}.home header{justify-content:space-between;align-items:center;display:flex}.project-list{padding:0;list-style:none}.project-list li{background:var(--panel);border:1px solid var(--border);border-radius:8px;align-items:center;gap:12px;margin-bottom:8px;padding:10px 12px;display:flex}.project-list a{color:inherit;flex-direction:column;flex:1;text-decoration:none;display:flex}.project-list span{color:var(--muted);font-size:12px}.empty,.page-message{color:var(--muted);padding:32px 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env(safe-area-inset-left));background:var(--panel);border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:10px;display:flex}.title-menu .save-state{color:var(--muted);margin-left:4px;font-size:12px;display:inline-grid}.title-menu .save-state>span{grid-area:1/1}.title-menu .save-state .ghost{visibility:hidden}.title-menu .save-state.failed{color:var(--danger)}.update-banner{left:50%;bottom:calc(16px + env(safe-area-inset-bottom));z-index:20;background:var(--panel);border:1px solid var(--border);border-radius:10px;align-items:center;gap:12px;padding:10px 14px;display:flex;position:fixed;transform:translate(-50%);box-shadow:0 8px 24px #0000002e}.toolbar .icon-button{justify-content:center;align-items:center;width:38px;height:36px;padding:0;display:inline-flex}.title-menu,.settings-menu{position:relative}.settings-menu .menu{z-index:5;background:var(--panel);border:1px solid var(--border);border-radius:8px;flex-direction:column;min-width:200px;padding:4px;display:flex;position:absolute;top:calc(100% + 4px);right:0;box-shadow:0 8px 24px #00000026}.settings-menu .menu.align-left{left:0;right:auto}.settings-menu .menu label.choice{white-space:nowrap;align-items:center;gap:8px;padding:8px 10px;display:flex}.settings-menu .menu label.choice:hover{background:var(--accent-soft)}.piece-numbers text{fill:#000;stroke:#fff;paint-order:stroke;stroke-linejoin:round}.title-menu .doc-name{background:0 0;border-color:#0000;align-items:center;gap:4px;font-weight:600;display:inline-flex}.title-menu .menu{z-index:5;background:var(--panel);border:1px solid var(--border);border-radius:8px;flex-direction:column;min-width:200px;padding:4px;display:flex;position:absolute;top:calc(100% + 4px);left:0;box-shadow:0 8px 24px #00000026}.title-menu .menu button{text-align:left;border:none;justify-content:space-between;gap:16px;padding:8px 10px;display:flex}.title-menu .menu button:hover:not(:disabled){background:var(--accent-soft)}.title-menu .menu hr{border:none;border-top:1px solid var(--border);width:100%;margin:4px 0}.title-menu .shortcut{color:var(--muted);font-size:12px}.toolbar .dirty{color:var(--accent)}.toolbar .tool-group{align-items:center;gap:4px;display:flex}.toolbar .tool-group label{align-items:center;gap:4px;margin-right:8px;display:flex}.toolbar .spacer{flex:1}.toolbar .warning{color:#9a5b00}.message-bar{color:var(--danger);background:#fdecea;justify-content:space-between;align-items:center;padding:6px 12px;display:flex}.editor-main{min-height:0;padding-bottom:env(safe-area-inset-bottom);flex:1;display:flex}.canvas-wrap{background:var(--workspace);flex:1;min-width:0;position:relative;overflow:hidden}.canvas{touch-action:none;-webkit-user-select:none;user-select:none;width:100%;height:100%;position:absolute;inset:0}.page{fill:#fff;stroke:#b0b0aa}.grid line{stroke:#e3e6ea}.strokes 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6px;font-size:12px;position:absolute;bottom:6px;left:28px}.status:empty{display:none}.background-panel{border-bottom:1px solid var(--border);margin-bottom:12px;padding-bottom:12px}.background-panel h2{margin:0 0 6px;font-size:15px}.background-panel .row{align-items:center;gap:6px;margin-top:6px;display:flex}.background-panel input[type=range]{flex:1;min-width:0}.background-panel .opacity{width:36px;color:var(--muted);font-size:12px}.glass-panel{width:280px;padding:12px calc(12px + env(safe-area-inset-right)) 12px 12px;background:var(--panel);border-left:1px solid var(--border);flex-shrink:0;overflow-y:auto}.glass-panel h2{margin:0;font-size:15px}.glass-panel ul{margin:8px 0;padding:0;list-style:none}.glass-panel li{border:1px solid #0000;border-radius:6px;gap:8px;padding:6px;display:flex}.glass-panel li.active{border-color:var(--accent);background:var(--accent-soft)}.glass-panel .swatch{background:repeating-conic-gradient(#ddd 0% 25%,#fff 0% 50%) 0 0/10px 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