:root{color:#2d3d35;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#f8f9f6;font-family:Inter,Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,sans-serif}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.35}button{transition:background .12s,color .12s,box-shadow .12s}button:focus-visible,a:focus-visible{outline-offset:4px;outline:2px solid #49745b}button:disabled:hover{background:0 0}.app{flex-direction:column;height:100dvh;min-height:400px;display:flex;overflow:hidden}.header{z-index:2;background:#fff;border-bottom:1px solid #e3e7df;flex:none;align-items:center;gap:27px;height:80px;padding:0 28px;display:flex}.brand{color:#264331;letter-spacing:-1.15px;align-items:center;gap:10px;font-size:24px;font-weight:750;text-decoration:none;display:flex}.brand-mark{flex-shrink:0;width:36px;height:36px}.header-divider{background:#e6e9e3;width:1px;height:29px}.board-title{font-size:13px;font-weight:600;line-height:1.6}.board-title>span{color:#8a938a;font-size:11px;font-weight:400;display:block}.header-actions{align-items:center;gap:22px;margin-left:auto;display:flex}.local-badge{white-space:nowrap;color:#5f7457;background:#f7f9f2;border:1px solid #e1e6da;border-radius:30px;align-items:center;gap:7px;padding:7px 11px;font-size:11px;font-weight:550;display:flex}.status-dot,.note-dot{background:#8ba573;border-radius:50%;flex-shrink:0;width:6px;height:6px}.quiet-button{background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:9px 10px;font-size:12px;display:inline-flex}.quiet-button:hover{background:#f0f3ed}.workspace{isolation:isolate;flex:1;min-height:0;position:relative}.canvas{cursor:crosshair;touch-action:none;-webkit-user-select:none;user-select:none;outline:none;width:100%;height:100%;display:block}.canvas:focus-visible{box-shadow:inset 0 0 0 2px #7b9867}.canvas-pan{cursor:grab}.canvas-pan:active{cursor:grabbing}.canvas-eraser{cursor:cell}.tool-panel{background:#fff;border:1px solid #e0e5dc;border-radius:15px;flex-direction:column;gap:5px;padding:7px;display:flex;position:absolute;top:26px;left:24px;box-shadow:0 4px 18px #324b2910,0 1px 2px #324b2907}.tool-item{position:relative}.tool-item-separated{border-top:1px solid #ecefe7;margin-top:2px;padding-top:7px}.tool-button{color:#6b7569;background:0 0;border:0;border-radius:9px;place-items:center;width:46px;height:45px;display:grid;position:relative}.tool-button:hover{background:#f1f4ed}.tool-button.selected{color:#355a35;background:#e5efd8}.tool-key{color:#87957d;font-size:8px;position:absolute;bottom:3px;right:5px}.style-panel{background:#fff;border:1px solid #e0e5dc;border-radius:12px;width:130px;padding:13px 12px 10px;position:absolute;top:26px;left:101px;box-shadow:0 3px 12px #324b2908}.panel-caption{letter-spacing:1.3px;color:#83907e;margin-bottom:9px;font-size:9px;font-weight:650}.color-options{grid-template-columns:repeat(3,1fr);gap:5px;display:grid}.color-button{background:0 0;border:1px solid #0000;border-radius:50%;width:29px;height:29px;padding:4px}.color-button span{background:var(--swatch);border-radius:50%;width:100%;height:100%;display:block}.color-button.active{border-color:var(--swatch)}.color-button:hover{background:#edf0e9}.width-options{border-top:1px solid #edf0e9;gap:3px;margin-top:12px;padding-top:9px;display:flex}.width-options button{background:0 0;border:0;border-radius:5px;place-items:center;width:32px;height:29px;display:grid}.width-options button.active{background:#eef3e7}.width-options button:hover{background:#e8eedf}.width-options span{background:#5b6a51;border-radius:4px;width:16px}.empty-state{text-align:center;pointer-events:none;-webkit-user-select:none;user-select:none;width:min(460px,70%);position:absolute;top:46%;left:50%;transform:translate(-50%,-50%)}.idea-sketch{width:180px;height:116px;margin:0 auto 19px}.eyebrow{letter-spacing:1.7px;color:#7d8b70;font-size:9px;font-weight:600}.empty-state h1{letter-spacing:-1.35px;margin:12px 0 13px;font-size:clamp(24px,3vw,36px);font-weight:500;line-height:1.25}.empty-state p{color:#86907f;margin:0;font-size:13px;line-height:1.9}.start-hint{color:#657953;background:#f0f4e9;border:1px solid #dfe7d7;border-radius:6px;align-items:center;gap:7px;margin-top:23px;padding:8px 11px;font-size:11px;display:inline-flex}.session-note{color:#8c9586;pointer-events:none;align-items:flex-start;gap:8px;font-size:11px;line-height:1.75;display:flex;position:absolute;top:29px;right:27px}.session-note .note-dot{background:#a4b48c;width:5px;height:5px;margin-top:6px}.session-note strong{color:#717f67;font-weight:400}.canvas-footer{pointer-events:none;justify-content:space-between;align-items:center;display:flex;position:absolute;bottom:20px;left:24px;right:24px}.zoom-panel{pointer-events:auto;background:#fff;border:1px solid #e0e5dc;border-radius:10px;align-items:center;padding:4px;display:flex;box-shadow:0 2px 8px #324b2907}.zoom-panel button,.help-button,.dialog-close{color:#78846f;background:0 0;border:0;border-radius:6px;place-items:center;width:32px;height:32px;display:grid}.zoom-panel button:hover,.help-button:hover,.dialog-close:hover{background:#edf2e6}.zoom-value{text-align:center;font-variant-numeric:tabular-nums;width:47px;font-size:11px}.zoom-divider{background:#e6eadf;width:1px;height:17px;margin:0 3px}.navigation-hint{color:#939d8a;align-items:center;gap:10px;margin-right:128px;font-size:10px;display:flex}.navigation-hint>span{color:#b9c1af}.help-button{pointer-events:auto;background:#fff;border:1px solid #e0e5dc;border-radius:50%;width:36px;height:36px}.status-bar{background:#fff;border-top:1px solid #e3e7df;justify-content:space-between;align-items:center;gap:20px;min-height:35px;padding:0 26px;font-size:10px;display:flex}.status-bar>div{align-items:center;gap:15px;display:flex}.active-tool{color:#4c6746;font-weight:600}.tool-hint{color:#8c9585}.checkpoint-label{color:#8d9982;letter-spacing:1.6px;white-space:nowrap;font-size:8px}.checkpoint-label>span{color:#c1c9b9;margin:0 6px}.dialog{color:#2d3d35;background:#fff;border:1px solid #dbe2d4;border-radius:20px;max-width:min(450px,100% - 32px);padding:32px;box-shadow:0 16px 90px #1c352329}.dialog::backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#24352355}.dialog h2{letter-spacing:-.8px;margin:13px 0;font-size:25px;font-weight:550}.dialog p{color:#7a8672;font-size:13px;line-height:1.8}.dialog-close{position:absolute;top:16px;right:16px}.dialog-actions{justify-content:flex-end;align-items:center;gap:8px;margin-top:24px;display:flex}.danger-button,.primary-button{color:#fff;background:#30543b;border:0;border-radius:8px;justify-content:center;align-items:center;gap:15px;padding:12px 16px;font-size:12px;font-weight:550;display:inline-flex}.danger-button{background:#a64332}.danger-button:hover{background:#923b2c}.primary-button:hover{background:#24432e}.shortcuts{grid-template-columns:1fr 1fr;column-gap:26px;margin:22px 0;display:grid}.shortcuts>div{border-bottom:1px solid #edf1e9;justify-content:space-between;align-items:center;padding:8px 0;font-size:12px;display:flex}.shortcuts>div:nth-last-child(-n+2){grid-column:span 2}kbd{color:#8a967c;background:#fafbf8;border:1px solid #e3e8dc;border-radius:4px;padding:2px 5px;font-family:inherit;font-size:10px}.local-notice{background:#f4f7ee;border-radius:10px;margin:20px 0;padding:15px}.local-notice strong{font-size:12px;font-weight:600}.local-notice p{margin:6px 0 0;font-size:11px}.share-button{gap:7px;padding:9px 13px}.share-dialog{width:450px;max-height:calc(100dvh - 32px);overflow-y:auto}.share-dialog .invite-qr{max-width:100%;height:auto;margin:10px auto 15px;display:block}.invite-label{margin-bottom:7px;font-size:11px;font-weight:600;display:block}.invite-copy{gap:7px;display:flex}.invite-copy input{color:#536b46;min-width:0;font:inherit;background:#f9fbf6;border:1px solid #dfe6d7;border-radius:8px;flex:1;padding:10px;font-size:11px}.invite-copy input:focus{outline-offset:2px;outline:2px solid #7b9867}.copy-status{color:#5f7950;margin-top:6px;font-size:10px}.share-dialog .local-link-note{margin:9px 0;font-size:11px}.share-dialog .local-notice{margin:12px 0}.share-dialog .session-lifetime{margin:12px 0 8px;font-size:11px}.leave-button{color:#947662;padding-left:0}.connection-error{z-index:3;color:#7f6338;background:#fff9ee;border:1px solid #e0c89e;border-radius:8px;align-items:center;gap:12px;width:max-content;max-width:calc(100% - 40px);padding:10px 13px;font-size:11px;display:flex;position:absolute;top:8px;left:50%;transform:translate(-50%);box-shadow:0 3px 10px #72592912}.connection-error button{color:#705330;background:0 0;border:0;flex-shrink:0;font-size:11px;text-decoration:underline}@media (width<=800px){.brand{font-size:21px}.brand-mark{width:32px;height:32px}.navigation-hint{display:none}.session-note{font-size:10px;top:21px;right:20px}.style-panel{width:68px;padding:10px 8px;top:387px;left:20px}.color-options{grid-template-columns:repeat(2,1fr);gap:4px}.color-button{width:23px;height:23px;padding:3px}.width-options{flex-direction:column;align-items:center;margin-top:8px;padding-top:6px}.panel-caption{letter-spacing:1px;font-size:8px}.tool-panel{top:20px;left:20px}.empty-state{left:55%}.checkpoint-label{display:none}.header{gap:12px;height:61px;padding:0 14px}.brand{gap:8px;font-size:20px}.board-title,.header-divider,.clear-button span{display:none}.clear-button{padding:8px}.local-badge{padding:6px 8px;font-size:10px}.header .local-badge{text-overflow:ellipsis;max-width:140px;overflow:hidden}.share-button{padding:8px}.share-button span{display:none}.connection-error{top:126px}.header-actions{gap:5px}.tool-panel{border-radius:12px;flex-direction:row;gap:3px;padding:5px;top:16px;left:50%;transform:translate(-50%)}.tool-button{width:43px;height:43px}.tool-item-separated{border-top:0;border-left:1px solid #ecefe7;margin-top:0;margin-left:2px;padding-top:0;padding-left:5px}.style-panel{border-radius:9px;align-items:center;gap:10px;width:auto;padding:6px 8px;display:flex;top:82px;left:50%;transform:translate(-50%)}.panel-caption{display:none}.color-options{gap:3px;display:flex}.width-options{border-top:0;border-left:1px solid #edf0e9;flex-direction:row;gap:2px;margin:0;padding:0 0 0 7px}.width-options button{width:26px;height:26px}.color-button{width:24px;height:24px}.session-note{font-size:9px;inset:auto auto 73px 17px}.session-note br{display:none}.session-note strong:before{content:" "}.empty-state{width:85%;top:51%;left:50%}.idea-sketch{width:140px;height:90px;margin-bottom:16px}.empty-state h1{font-size:28px}.empty-state p{font-size:12px}.empty-state .eyebrow{letter-spacing:1.2px;font-size:8px}.start-hint{margin-top:16px}.canvas-footer{bottom:18px;left:16px;right:16px}.status-bar{min-height:33px;padding:0 15px;font-size:9px}.status-bar>div{gap:10px}.tool-hint{text-overflow:ellipsis;white-space:nowrap;max-width:calc(100vw - 105px);overflow:hidden}.dialog{padding:25px}}@media (height<=680px){.idea-sketch{display:none}.empty-state{top:52%}.start-hint{display:none}}@media (prefers-reduced-motion:reduce){button{transition:none}}