:root{--bg:#eceff3;--panel:#fff;--ink:#1d2733;--muted:#6b7684;--line:#d9dee5;--accent:#1f6feb;--accent-soft:#e6efff;--select:var(--accent);--row:52px;--bar:76px;--shadow:0 6px 24px #141e2d29;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}html,body{background:var(--bg);overscroll-behavior:none;height:100%;margin:0;overflow:hidden}body,.ui,.ui *,.measure-layer{touch-action:manipulation}#app{position:fixed;inset:0}#view{touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;width:100%;height:100%;display:block;position:absolute;inset:0}.ui{pointer-events:none;position:absolute;inset:0}.ui>*{pointer-events:auto}.title{border:1px solid var(--line);box-shadow:var(--shadow);pointer-events:none;border:1px solid var(--line);font-size:15px;font-weight:600;font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;background:#fffffff2;border-radius:14px;flex-direction:column;align-items:flex-end;gap:2px;padding:8px 14px;display:flex;position:absolute;top:12px;right:12px}.title:active{background:var(--accent-soft)}.title-name{align-items:center;gap:4px;display:inline-flex}.title-name svg{color:var(--muted)}.title-status{color:var(--accent);font-size:13px;font-weight:500}.title-status:empty{display:none}.gear{border:1px solid var(--line);width:44px;height:44px;color:var(--muted);box-shadow:var(--shadow);cursor:pointer;-webkit-tap-highlight-color:transparent;background:#fffffff2;border-radius:999px;justify-content:center;align-items:center;display:flex;position:absolute;top:12px;left:12px}.gear.active{color:var(--accent);background:var(--accent-soft)}.panel:not([hidden])~.gear{display:none}.pref{padding:14px 16px 6px}.pref-head{justify-content:space-between;margin-bottom:8px;font-size:16px;font-weight:600;display:flex}.pref-value{color:var(--muted);font-variant-numeric:tabular-nums;font-weight:400}.pref input[type=range]{width:100%;height:32px;accent-color:var(--accent);touch-action:pan-y;margin:0}.pref-scale{color:var(--muted);justify-content:space-between;margin-top:-2px;font-size:12px;display:flex}.pref-hint{color:var(--muted);margin-top:8px;font-size:13px;line-height:1.35}.pref-foot{padding:4px 16px 16px}.row.pref-reset{border:1px solid var(--line);background:var(--panel);width:calc(100% - 32px);min-height:48px;color:var(--accent);border-radius:999px;justify-content:center;margin:10px 16px 0;font-weight:600}button.pref-reset:active{background:var(--accent-soft)}.pref-section{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:18px 16px 2px;font-size:12px;font-weight:700}.pref-section:not(:first-child){border-top:1px solid var(--line);margin-top:8px}.seg{border:1px solid var(--line);border-radius:999px;display:flex;overflow:hidden}.seg-btn{min-height:40px;color:var(--ink);font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:0;flex:1;font-size:15px;font-weight:600}.seg-btn+.seg-btn{border-left:1px solid var(--line)}.seg-btn.on{background:var(--accent);color:#fff}.toolbar{left:50%;bottom:calc(12px + env(safe-area-inset-bottom));border:1px solid var(--line);height:64px;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(10px);background:#fffffff2;border-radius:999px;gap:2px;padding:5px;display:flex;position:absolute;translate:-50%}.tool{width:88px;height:54px;color:var(--ink);font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:0;border-radius:999px;flex-direction:column;flex:none;justify-content:center;align-items:center;gap:1px;display:flex}.tool-icon{justify-content:center;align-items:center;height:24px;display:flex}.tool-label{font-size:12px}.tool.active{color:var(--accent);background:var(--accent-soft)}.panel[hidden]{display:none}.panel{top:12px;left:12px;bottom:calc(var(--bar) + 12px + env(safe-area-inset-bottom));width:var(--panel-w,340px);background:var(--panel);border:1px solid var(--line);max-width:calc(100% - 24px);box-shadow:var(--shadow);border-radius:18px;flex-direction:column;display:flex;position:absolute;overflow:hidden}@media (max-width:700px){.panel:not(.dock-bottom):not(.force-side){width:auto;height:55%;top:auto;right:12px}}.panel-head{height:var(--row);border-bottom:1px solid var(--line);touch-action:none;cursor:grab;-webkit-user-select:none;user-select:none;align-items:center;gap:2px;padding:0 6px 0 16px;font-size:17px;font-weight:600;display:flex}.panel-title{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.panel-btn{width:44px;height:44px;color:var(--muted);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:0;border-radius:999px;justify-content:center;align-items:center;display:flex}.panel-btn:active{background:var(--accent-soft);color:var(--accent)}.panel-body{-webkit-overflow-scrolling:touch;overscroll-behavior:contain;touch-action:pan-y;scrollbar-width:thin;scrollbar-gutter:stable;scrollbar-color:#9aa3ad transparent;flex:1;padding:6px 0;overflow-y:auto}.panel-body::-webkit-scrollbar{width:10px}.panel-body::-webkit-scrollbar-track{background:0 0}.panel-body::-webkit-scrollbar-thumb{border:2px solid var(--panel);background:#9aa3ad;border-radius:5px}.row{width:100%;min-height:var(--row);color:var(--ink);font:inherit;text-align:left;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:0;align-items:center;gap:10px;padding:0 12px;font-size:16px;display:flex}button.row:active,label.row:active{background:var(--accent-soft)}.row-active{background:var(--accent-soft);color:var(--accent);font-weight:600}.row-name{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.row-name.dim{color:var(--muted)}.row-count{color:var(--muted);font-size:13px}.row-folder{font-weight:600}.row input[type=checkbox]{width:24px;height:24px;accent-color:var(--accent);flex:none;margin:0}.disc{width:44px;height:48px;color:var(--muted);cursor:pointer;background:0 0;border:0;flex:none;margin-left:-8px;font-size:22px}.empty{color:var(--muted);padding:24px 16px}.measure-layer{pointer-events:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;position:absolute;inset:0;overflow:hidden}.measure-layer>*{will-change:transform;position:absolute;top:0;left:0}.measure-layer [hidden]{display:none!important}.m-svg{width:100%;height:100%;overflow:visible}.m-line .m-halo{stroke:#fff;stroke-width:6px;stroke-linecap:round;opacity:.85}.m-line .m-core{stroke:var(--ink);stroke-width:2.5px;stroke-linecap:round}.m-line.selected .m-core{stroke:var(--select)}.m-line .m-witness{stroke:var(--ink);stroke-width:1.5px}.m-line .m-whalo{stroke:#fff;stroke-width:5px;stroke-linecap:round;opacity:.85}.m-line .m-tick{stroke:var(--ink);stroke-width:2.5px;stroke-linecap:round}.m-line .m-thalo{stroke:#fff;stroke-width:6px;stroke-linecap:round;opacity:.85}.m-line.selected .m-witness,.m-line.selected .m-tick{stroke:var(--select)}.m-rubber{stroke:var(--ink);stroke-width:2px;stroke-dasharray:6 4;opacity:.85}.m-line .m-ref{stroke:var(--muted);stroke-width:1.25px;stroke-dasharray:4 3}.m-line.selected .m-ref{stroke:var(--select)}.m-ref-dot{--snap:var(--muted);background:var(--snap);pointer-events:none;border:2px solid #fff;border-radius:50%;width:10px;height:10px;margin:-5px 0 0 -5px;box-shadow:0 0 0 1px #0000004d}.measure-layer.hide-measurements .m-ref-dot{display:none}.m-handle-pending{border-color:var(--snap,var(--ink));color:var(--snap,var(--ink))}.m-leader{stroke:var(--muted);stroke-width:1.5px;stroke-dasharray:4 3}.m-handle{border:2px solid var(--ink);pointer-events:auto;touch-action:none;cursor:grab;background:0 0;border-radius:50%;width:36px;height:36px;margin:-18px 0 0 -18px;box-shadow:0 0 0 1px #fffc,inset 0 0 0 1px #fffc}.m-handle:after{content:"";background:var(--ink);border-radius:50%;width:8px;height:8px;margin:-4px 0 0 -4px;position:absolute;top:50%;left:50%}.m-handle{border-color:var(--snap,var(--ink))}.m-handle:after{background:var(--snap,var(--ink))}.m-handle.dragging{opacity:0;cursor:grabbing}.m-tip{--snap:var(--muted);background:var(--snap);color:#fff;white-space:nowrap;pointer-events:none;border-radius:6px;padding:2px 7px;font-size:11px;font-weight:600;box-shadow:0 1px 3px #0003}.m-handle.passive{background:var(--snap,var(--ink));pointer-events:none;border-color:#fff;width:12px;height:12px;margin:-6px 0 0 -6px;box-shadow:0 0 0 1px #00000059}.m-handle.passive:after{display:none}.m-handle-pending{color:var(--ink);text-shadow:0 0 2px #fff,0 0 2px #fff;border-style:dashed;justify-content:center;align-items:center;font-size:14px;font-weight:700;display:flex}.m-handle-pending:after{display:none}.m-label{transform-origin:50%;color:var(--ink);font-variant-numeric:tabular-nums;white-space:nowrap;pointer-events:auto;touch-action:none;cursor:grab;background:#fff;border-radius:8px;margin-left:-1px;padding:6px 10px;font-size:15px;font-weight:700;box-shadow:0 1px 6px #0000002e}.m-label.selected{background:var(--select);color:#fff}.m-label.saved:before{content:"🔒";margin-right:5px;font-size:11px}.measure-layer.hide-measurements .m-line,.measure-layer.hide-measurements .m-label,.measure-layer.hide-measurements .m-handle:not(.m-handle-pending){display:none}.row-measurements{border-bottom:1px solid var(--line);background:var(--accent-soft);margin-bottom:4px;font-weight:600;padding-left:16px!important}.bar-on{background:var(--accent-soft);border-color:var(--accent)}.snap-marker{--snap:var(--accent);pointer-events:none}.snap-name:empty{display:none}.snap-source{--snap:var(--accent);pointer-events:none}.snap-source .snap-dot{width:12px;height:12px;margin:-6px 0 0 -6px}.snap-source .snap-name{opacity:.9;padding:3px 7px;font-size:12px;top:12px}.snap-dot{background:var(--snap);border:2px solid #fff;border-radius:50%;width:16px;height:16px;margin:-8px 0 0 -8px;position:absolute;box-shadow:0 0 0 1px #00000040}.snap-name{background:var(--snap);color:#fff;white-space:nowrap;border-radius:6px;padding:4px 8px;font-size:13px;font-weight:600;position:absolute;top:-34px;left:0;translate:-50%}.measure-bar{left:50%;bottom:calc(var(--bar) + 8px + env(safe-area-inset-bottom));border:1px solid var(--line);max-width:calc(100% - 24px);height:56px;box-shadow:var(--shadow);scrollbar-width:none;background:#fffffff2;border-radius:999px;align-items:center;gap:8px;padding:0 8px;display:flex;position:absolute;overflow:auto hidden;translate:-50%}.measure-bar::-webkit-scrollbar{display:none}.measure-bar>*{flex:none}.measure-spacer{flex:0 0 4px}.measure-hint{left:50%;bottom:calc(var(--bar) + 8px + 56px + 10px + env(safe-area-inset-bottom));color:#fff;white-space:nowrap;pointer-events:none;background:#1d2733c7;border-radius:999px;padding:6px 12px;font-size:13px;position:absolute;translate:-50%}.axis-group{gap:6px;display:flex}.axis-btn{--axis:var(--ink);border:2px solid var(--axis);min-width:46px;height:42px;color:var(--axis);font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;background:#fff;border-radius:999px;font-size:16px;font-weight:700}.axis-btn.on{background:var(--axis);color:#fff}.axis-btn{justify-content:center;align-items:center;gap:5px;padding:0 10px;display:inline-flex}.axis-key{opacity:.75;font-size:13px;font-weight:400}.snap-marker.aiming .snap-dot{border:2px solid var(--snap);background:0 0;width:30px;height:30px;margin:-15px 0 0 -15px;box-shadow:0 0 0 1px #ffffffe6,inset 0 0 0 1px #ffffffe6}.snap-marker.aiming .snap-dot:after{content:"";background:var(--snap);border-radius:50%;width:3px;height:3px;margin:-1.5px 0 0 -1.5px;position:absolute;top:50%;left:50%;box-shadow:0 0 0 1px #fff}.snap-marker.aiming .snap-dot:before{content:"";border-top:2px solid var(--snap);width:44px;height:0;margin-top:-1px;position:absolute;top:50%;left:-9px;-webkit-mask:linear-gradient(90deg,#000 0 7px,#0000 7px 37px,#000 37px);mask:linear-gradient(90deg,#000 0 7px,#0000 7px 37px,#000 37px)}.snap-marker.aiming .snap-name{padding:6px 10px;font-size:15px;top:-44px}.bar-btn{border:1px solid var(--line);height:42px;color:var(--accent);font:inherit;cursor:pointer;white-space:nowrap;background:#fff;border-radius:999px;padding:0 14px;font-size:15px;font-weight:600}.bar-danger{color:#c0262a}.bar-btn:disabled{color:var(--muted);opacity:.5;cursor:default}.bar-done{background:var(--accent);border-color:var(--accent);color:#fff}.overlay{text-align:center;background:#fffffff2;border-radius:12px;max-width:80%;padding:14px 20px;font-size:16px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.start{flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:24px;display:flex;position:absolute;inset:0}.start h1{margin:0 0 12px;font-size:26px}.start-btn{border:1px solid var(--line);background:var(--panel);width:min(360px,100%);min-height:56px;color:var(--ink);font:inherit;cursor:pointer;border-radius:12px;justify-content:center;align-items:center;font-size:17px;display:flex}.start-file{color:var(--accent)}.start-file input{display:none}.panel-resize{width:18px;height:72px;color:var(--line);cursor:ew-resize;touch-action:none;justify-content:center;align-items:center;display:flex;position:absolute;top:50%;right:0;translate:0 -50%}.panel-resize:active{color:var(--accent)}.panel.dock-bottom .panel-resize,.panel.force-side.dock-bottom .panel-resize{display:none}.panel.dock-bottom:not(.force-side){width:auto;max-width:none;height:108px;top:auto;left:12px;right:12px;bottom:calc(var(--bar) + 12px + env(safe-area-inset-bottom))}.panel.dock-bottom:not(.force-side) .panel-head{height:40px;font-size:15px}.panel.dock-bottom:not(.force-side) .panel-body{touch-action:pan-x;scrollbar-width:none;flex-direction:row;align-items:center;gap:8px;padding:8px 12px;scroll-padding-left:12px;display:flex;overflow:auto hidden}.panel.dock-bottom:not(.force-side) .panel-body::-webkit-scrollbar{display:none}.panel.dock-bottom:not(.force-side) .empty{white-space:nowrap;padding:0}.chip{border:1px solid var(--line);height:44px;color:var(--ink);font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;white-space:nowrap;background:#fff;border-radius:999px;flex:none;align-items:center;gap:8px;padding:0 14px;font-size:15px;display:inline-flex}.chip.active{background:var(--select);border-color:var(--select);color:#fff}.chip input[type=checkbox]{width:22px;height:22px;accent-color:var(--accent);margin:0}.chip.active input[type=checkbox]{accent-color:#fff}.chip-count{color:var(--muted);font-size:12px}.chip.active .chip-count{color:#ffffffd9}.chip-folder{padding-right:4px;font-weight:600}.chip-more{width:36px;height:36px;color:inherit;cursor:pointer;background:0 0;border:0;border-radius:999px;justify-content:center;align-items:center;display:flex}.chip-measurements{background:var(--accent-soft);border-color:#0000;font-weight:600}.chip-name.dim{color:var(--muted)}.tag-pop{bottom:calc(var(--bar) + 12px + 108px + 8px + env(safe-area-inset-bottom));background:var(--panel);border:1px solid var(--line);max-height:50vh;box-shadow:var(--shadow);border-radius:16px;flex-direction:column;display:flex;position:absolute;overflow:hidden}.tag-pop-head{border-bottom:1px solid var(--line);padding:10px 16px;font-weight:600}.tag-pop-body{touch-action:pan-y;padding:4px 0;overflow-y:auto}.tour{top:calc(12px + env(safe-area-inset-top));border:1px solid var(--line);width:min(440px,100% - 136px);box-shadow:var(--shadow);z-index:5;background:#fffffff7;border-radius:14px;padding:12px 16px 14px;position:absolute;left:50%;translate:-50%}.tour-row{align-items:center;gap:8px;min-height:28px;display:flex}.tour-count{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);flex:1;font-size:12px;font-weight:700}.tour-btn{border:1px solid var(--line);min-height:32px;color:var(--muted);font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border-radius:999px;padding:0 14px;font-size:14px;font-weight:600}.tour-done{background:var(--accent);border-color:var(--accent);color:#fff;margin-left:auto}.tour-text{margin-top:4px;font-size:17px;line-height:1.35}.tour-tip{color:var(--muted);margin-top:6px;padding-right:36px;font-size:14px;line-height:1.35}.tour-tick{background:var(--accent);color:#fff;opacity:0;border-radius:999px;justify-content:center;align-items:center;width:30px;height:30px;font-size:18px;font-weight:700;transition:opacity .15s,scale .2s;display:flex;position:absolute;bottom:10px;right:14px;scale:.6}.tour-tick.show{opacity:1;scale:1}@media (max-width:600px){.tour{top:calc(66px + env(safe-area-inset-top));width:calc(100% - 24px)}}:root{--bg:#eef3ee;--ink:#1f2a1f;--muted:#6d7d6d;--line:#d3dcd3;--accent:#2e7d32;--accent-soft:#e4f0e4;--select:#1f6feb;--shadow:inset 0 1px 0 #ffffffe6, 0 0 0 1px #2e7d3224, 0 6px 24px #1e321e24}.tour-extra{margin-top:10px}.invite{flex-direction:column;align-items:flex-start;gap:8px;display:flex}.tour-go{background:var(--accent);border-color:var(--accent);color:#fff;min-height:40px;padding:0 18px;font-size:15px}.invite-hint{color:var(--muted);padding-right:36px;font-size:14px;line-height:1.35}.invite-settings{display:block}.start-sub{color:var(--muted);margin:-6px 0 16px;font-size:15px}.start-list{flex-direction:column;gap:10px;width:min(420px,100%);margin-bottom:18px;display:flex}.start-row{align-items:stretch;gap:8px;display:flex}.start-open{border:1px solid var(--line);background:var(--panel);min-height:60px;color:var(--ink);font:inherit;text-align:left;cursor:pointer;box-shadow:var(--shadow);-webkit-tap-highlight-color:transparent;border-radius:14px;flex-direction:column;flex:1;align-items:flex-start;gap:2px;padding:10px 16px;display:flex}.start-open:active{background:var(--accent-soft)}.start-name{font-size:17px;font-weight:600}.start-meta{color:var(--muted);font-size:13px}.start-remove{border:1px solid var(--line);background:var(--panel);width:44px;color:var(--muted);font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;border-radius:14px;font-size:22px}.start-remove:active{color:#b4251a;border-color:#b4251a}.start-empty{color:var(--muted);text-align:center;padding:12px}.start-hint{width:min(420px,100%);color:var(--muted);text-align:center;margin-top:10px;font-size:13px;line-height:1.4}.start-btn{box-shadow:var(--shadow);border-radius:999px;font-weight:600}