:root{--ink: #1b1b1f;--paper: #ffffff;--paper2: #f5f5f9;--grid-minor: #ececf4;--grid-major: #d6d6e0;--panel: #ffffff;--panel2: #f5f5f9;--panel-text: #1b1b1f;--panel-text-dim: #6c6c75;--border: #e0e0e8;--border-strong: #c8c8d4;--shadow: 0 0 0 1px rgba(0, 0, 0, .05), 0 2px 10px rgba(0, 0, 0, .08);--shadow-soft: 0 0 0 1px rgba(0, 0, 0, .04), 0 1px 4px rgba(0, 0, 0, .06);--island: rgba(255, 255, 255, .96);--boundary: #c9a09c;--boundary-fill: rgba(179, 38, 30, .04);--wall: #1b1b1f;--wall-selected: #6965db;--door: #3d5a80;--door-selected: #6965db;--window: #2f6f8f;--window-selected: #6965db;--furniture: #5a6b4f;--furniture-selected: #6965db;--measure: #c9822a;--measure-selected: #6965db;--dim: #5a6a7a;--room-dim: #3d6b5c;--room-fill: rgba(61, 107, 92, .07);--area: #b85c38;--area-selected: #6965db;--area-fill: rgba(184, 92, 56, .12);--area-fill-selected: rgba(105, 101, 219, .16);--line: #3d5a80;--line-selected: #6965db;--shape: #5b6b8a;--shape-selected: #6965db;--shape-fill: rgba(91, 107, 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.zoom-unit{font-size:11px;color:var(--panel-text-dim);white-space:nowrap}#stage{position:absolute;top:44px;left:0;right:0;bottom:28px}canvas{display:block;touch-action:none}#statusbar{position:absolute;left:0;right:0;bottom:0;height:28px;background:var(--island);color:var(--panel-text-dim);display:flex;align-items:center;gap:18px;padding:0 14px;font-family:var(--mono);font-size:11.5px;z-index:5;border-top:1px solid var(--border)}#statusbar .measure-live{color:var(--measure);font-weight:600}#statusbar .accent{color:var(--accent)}#statusbar .statusbar-spacer{flex:1;min-width:8px}#statusbar .statusbar-toggles{display:flex;align-items:center;gap:2px;margin-left:auto}#statusbar .status-toggle{display:flex;align-items:center;justify-content:center;width:24px;height:22px;padding:0;border:1px solid transparent;border-radius:5px;background:transparent;color:var(--panel-text-dim);cursor:pointer}#statusbar .status-toggle svg{width:14px;height:14px;display:block;pointer-events:none}#statusbar .status-toggle:hover{background:var(--panel2);color:var(--panel-text)}#statusbar .status-toggle.active{color:var(--accent);background:var(--accent-soft)}#modeLegend{position:absolute;bottom:40px;left:14px;background:var(--island);border:1px solid var(--border);border-radius:10px;padding:8px 12px;z-index:5;color:var(--panel-text-dim);font-size:11.5px;max-width:230px;line-height:1.5;box-shadow:var(--shadow-soft)}#modeLegend b{color:var(--panel-text)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--panel-text-dim)}#sidebar{scrollbar-width:thin;scrollbar-color:transparent transparent}#sidebar:hover{scrollbar-color:rgba(0,0,0,.18) transparent}#sidebar::-webkit-scrollbar{width:6px}#sidebar::-webkit-scrollbar-track{background:transparent}#sidebar::-webkit-scrollbar-thumb{background:transparent;border-radius:999px;border:1px solid transparent;background-clip:padding-box}#sidebar:hover::-webkit-scrollbar-thumb{background:#00000029;background-clip:padding-box}#sidebar::-webkit-scrollbar-thumb:hover{background:#00000047;background-clip:padding-box}.export-dialog{border:1px solid var(--border-strong);border-radius:12px;padding:0;width:min(420px,calc(100vw - 32px));background:var(--panel);color:var(--panel-text);box-shadow:var(--shadow)}.export-dialog::backdrop{background:#1b1b1f59}.export-dialog form{margin:0;display:flex;flex-direction:column}.export-dialog-head{padding:18px 20px 8px}.export-dialog-head h2{margin:0;font-size:16px;font-weight:600;letter-spacing:-.01em}.export-dialog-sub{margin:6px 0 0;font-size:12.5px;color:var(--panel-text-dim);line-height:1.45}.export-dialog-body{padding:8px 20px 16px;display:flex;flex-direction:column;gap:14px}.export-label{display:block;font-size:11.5px;font-weight:600;color:var(--panel-text-dim);margin-bottom:8px;text-transform:uppercase;letter-spacing:.04em}.export-scale-row{display:flex;gap:8px}.export-scale-opt{flex:1;display:flex;align-items:center;justify-content:center;gap:0;cursor:pointer}.export-scale-opt input{position:absolute;opacity:0;pointer-events:none}.export-scale-opt span{display:block;width:100%;text-align:center;padding:8px 10px;border-radius:8px;border:1px solid var(--border-strong);background:var(--panel2);font-family:var(--mono);font-size:13px;font-weight:500}.export-scale-opt input:checked+span{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.export-scale-opt:hover span{border-color:var(--accent)}.export-check{display:flex;align-items:center;gap:8px;font-size:13px;cursor:pointer;-webkit-user-select:none;user-select:none}.export-check input{width:15px;height:15px;accent-color:var(--accent)}.export-dialog-actions{display:flex;align-items:center;gap:8px;padding:12px 16px 16px;border-top:1px solid var(--border)}.export-actions-spacer{flex:1}.export-dialog-actions .btn-sm.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-on)}.export-dialog-actions .btn-sm.primary:hover{filter:brightness(.96)}.about-dialog{width:min(560px,calc(100vw - 32px));max-height:min(86vh,720px)}.about-dialog form{display:flex;flex-direction:column;max-height:min(86vh,720px)}.about-dialog-body{overflow:auto;display:flex;flex-direction:column;gap:16px;padding-bottom:4px}.about-block h3{margin:0 0 6px;font-size:14px;font-weight:650}.about-block p,.about-block li{margin:0;font-size:13px;line-height:1.55;color:var(--panel-text-dim)}.about-block ul,.about-block ol{margin:0;padding-left:1.2em;display:flex;flex-direction:column;gap:4px}.about-faq details{border-top:1px solid var(--border);padding:8px 0}.about-faq details:first-of-type{border-top:none;padding-top:0}.about-faq summary{cursor:pointer;font-size:13px;font-weight:600;color:var(--panel-text)}.about-faq details p{margin-top:6px}.about-faq code{font-family:var(--mono);font-size:12px}.zoning-dialog{width:min(440px,calc(100vw - 32px));max-width:calc(100vw - 32px);overflow:hidden}.zoning-dialog .export-dialog-body{min-width:0;overflow-x:hidden}.zoning-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;min-width:0}.zoning-grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.zoning-field{display:flex;flex-direction:column;gap:4px;min-width:0;font-size:12px;color:var(--panel-text-dim)}.zoning-field input{box-sizing:border-box;width:100%;min-width:0;font-family:var(--mono);font-size:13px;padding:7px 9px;border-radius:8px;border:1px solid var(--border-strong);background:var(--panel2);color:var(--panel-text)}.zoning-field input:focus{outline:none;border-color:var(--accent)}.zoning-results{box-sizing:border-box;min-width:0;border:1px solid var(--border);border-radius:10px;background:var(--panel2);padding:10px 12px;max-height:220px;overflow-x:hidden;overflow-y:auto}.zoning-results-empty{margin:0;font-size:12.5px;color:var(--panel-text-dim);line-height:1.45}.zoning-status{margin:0 0 8px;font-size:13px;font-weight:600}.zoning-status[data-ok="1"]{color:var(--room-dim)}.zoning-status[data-ok="0"]{color:var(--danger)}.zoning-check{margin:0 0 8px;padding:8px 10px;border-radius:8px;border:1px solid var(--border);background:var(--panel);font-size:12.5px;line-height:1.45;overflow-wrap:anywhere;word-break:break-word}.zoning-check:last-child{margin-bottom:0}.zoning-check[data-ok="1"]{border-color:#3d6b5c59}.zoning-check[data-ok="0"]{border-color:#db696573;background:#db69650f}.zoning-check-title{font-weight:600;margin-bottom:2px}.zoning-check-title:before{content:"✓ ";color:var(--room-dim)}.zoning-check[data-ok="0"] .zoning-check-title:before{content:"! ";color:var(--danger)}.summary-zoning{margin:8px 0 4px;padding:6px 8px;border-radius:6px;border:1px solid var(--border);font-size:12px;line-height:1.4}.summary-zoning[data-ok="1"]{border-color:#3d6b5c59;background:#3d6b5c0f}.summary-zoning[data-ok="0"]{border-color:#db696566;background:#db69650f}.share-dialog{width:min(520px,calc(100vw - 32px))}.share-link-row{display:flex;gap:8px;align-items:stretch}.share-link-input{flex:1;min-width:0;font-family:var(--mono);font-size:12px;padding:8px 10px;border-radius:8px;border:1px solid var(--border-strong);background:var(--panel2);color:var(--panel-text)}.share-link-input:focus{outline:none;border-color:var(--accent)}.share-meta{margin:8px 0 0;font-size:12px;color:var(--panel-text-dim);font-family:var(--mono)}.share-meta[data-warn="1"]{color:var(--measure)}.share-hint{margin:0;font-size:12.5px;color:var(--panel-text-dim);line-height:1.45}.view-only-banner{position:absolute;top:44px;left:0;right:0;z-index:4;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 14px;background:var(--accent-soft);border-bottom:1px solid var(--border);color:var(--panel-text)}.view-only-banner[hidden]{display:none!important}.view-only-banner-copy{min-width:0;display:flex;flex-wrap:wrap;gap:6px 10px;align-items:baseline;font-size:13px;line-height:1.35}.view-only-banner-copy strong{font-weight:600;color:var(--accent)}.view-only-banner-copy span{color:var(--panel-text-dim)}.view-only-banner .btn-sm.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-on);white-space:nowrap}body.view-only .tool-btn:not([data-tool=pan]),body.view-only #annotateToolBtn,body.view-only #addFloorBtn,body.view-only #addLandBtn,body.view-only #addVertexBtn,body.view-only #applyLandCoordBtn,body.view-only #copyLandCoordBtn,body.view-only #landCoordInput,body.view-only #landColorRow,body.view-only #landMoveBtn,body.view-only [data-rot-quick],body.view-only #rotateCCW,body.view-only #rotateCW,body.view-only #editBar,body.view-only #undoBtn,body.view-only #redoBtn,body.view-only #copyBtn,body.view-only #cutBtn,body.view-only #pasteBtn,body.view-only #duplicateBtn,body.view-only #deleteWallBtn,body.view-only #clearWallsBtn,body.view-only #newProjectBtn,body.view-only #saveProjectBtn,body.view-only #openProjectBtn,body.view-only #alignBar,body.view-only .opt-row button:not(.view-only-ok),body.view-only #gridSizeInput,body.view-only #snapToggle,body.view-only #snapEndpointToggle{pointer-events:none;opacity:.42}body.view-only #projectNameLabel,body.view-only #brandProjectName{pointer-events:none;cursor:default}.notice-dialog{border:1px solid var(--border-strong);border-radius:12px;padding:0;width:min(400px,calc(100vw - 32px));background:var(--panel);color:var(--panel-text);box-shadow:var(--shadow)}.notice-dialog::backdrop{background:#1b1b1f59}.notice-dialog[open]{animation:notice-pop .18s ease-out}@keyframes notice-pop{0%{opacity:0;transform:translateY(6px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.notice-dialog form{margin:0;display:flex;flex-direction:column}.notice-dialog-head{display:flex;gap:14px;align-items:flex-start;padding:20px 20px 8px}.notice-dialog-icon{flex:0 0 auto;width:36px;height:36px;border-radius:10px;display:grid;place-items:center;font-size:18px;font-weight:600;line-height:1;font-family:var(--sans)}.notice-dialog-icon:before{content:"!"}.notice-dialog[data-tone=error] .notice-dialog-icon{background:#db69651f;color:var(--danger)}.notice-dialog[data-tone=warn] .notice-dialog-icon{background:#c9822a24;color:var(--measure)}.notice-dialog[data-tone=info] .notice-dialog-icon{background:var(--accent-soft);color:var(--accent)}.notice-dialog[data-tone=info] .notice-dialog-icon:before{content:"i";font-style:italic;font-weight:700}.notice-dialog-copy{min-width:0;flex:1;padding-top:2px}.notice-dialog-copy h2{margin:0;font-size:15px;font-weight:600;letter-spacing:-.01em;line-height:1.3}.notice-dialog-body{margin:8px 0 0;font-size:13px;color:var(--panel-text-dim);line-height:1.5;white-space:pre-line;word-break:break-word}.notice-dialog-body:empty{display:none}.notice-dialog-field{display:block;margin-top:12px}.notice-dialog-field[hidden]{display:none}.notice-dialog-input{width:100%;box-sizing:border-box;padding:9px 11px;border-radius:8px;border:1px solid var(--border-strong);background:var(--panel2);color:var(--panel-text);font-family:var(--sans);font-size:13px;outline:none}.notice-dialog-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.notice-dialog-actions{display:flex;justify-content:flex-end;gap:8px;padding:12px 16px 16px}.notice-dialog-actions .btn-sm{flex:none;min-width:72px}.notice-dialog-actions .btn-sm.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-on);min-width:88px}.notice-dialog-actions .btn-sm.primary:hover{filter:brightness(.96);color:var(--accent-on);border-color:var(--accent)}.notice-dialog-actions .btn-sm.primary.danger{background:var(--danger);border-color:var(--danger);color:#fff}.notice-dialog-actions .btn-sm.primary.danger:hover{filter:brightness(.96);color:#fff;border-color:var(--danger)}.template-dialog{border:1px solid var(--border-strong);border-radius:12px;padding:0;width:min(520px,calc(100vw - 32px));background:var(--panel);color:var(--panel-text);box-shadow:var(--shadow)}.template-dialog::backdrop{background:#1b1b1f59}.template-dialog form{margin:0;display:flex;flex-direction:column}.template-dialog-head{padding:18px 20px 8px}.template-dialog-head h2{margin:0;font-size:16px;font-weight:600;letter-spacing:-.01em}.template-dialog-sub{margin:6px 0 0;font-size:12.5px;color:var(--panel-text-dim);line-height:1.45}.template-dialog-body{padding:8px 20px 16px;display:flex;flex-direction:column;gap:14px}.template-name-field{display:flex;flex-direction:column}.template-name-input{width:100%;box-sizing:border-box;padding:8px 10px;border-radius:8px;border:1px solid var(--border-strong);background:var(--panel2);color:var(--panel-text);font-size:14px;font-family:inherit}.template-name-input:focus{outline:none;border-color:var(--accent)}.template-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.template-opt{display:block;cursor:pointer;margin:0}.template-opt input{position:absolute;opacity:0;pointer-events:none}.template-opt-card{display:flex;flex-direction:column;gap:4px;padding:10px 12px;border-radius:8px;border:1px solid var(--border-strong);background:var(--panel2);min-height:72px;transition:border-color .12s ease,background .12s ease}.template-opt-card strong{font-size:13px;font-weight:600;letter-spacing:-.01em}.template-opt-card span{font-size:11.5px;color:var(--panel-text-dim);line-height:1.4}.template-opt-meta{font-size:11px!important;opacity:.85;margin-top:2px}.template-opt input:checked+.template-opt-card{border-color:var(--accent);background:var(--accent-soft)}.template-opt input:checked+.template-opt-card strong{color:var(--accent)}.template-opt:hover .template-opt-card{border-color:var(--accent)}.template-dialog-actions{display:flex;align-items:center;gap:8px;padding:12px 16px 16px;border-top:1px solid var(--border)}.template-dialog-actions .btn-sm.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-on)}.template-dialog-actions .btn-sm.primary:hover{filter:brightness(.96)}@media(max-width:480px){.template-grid{grid-template-columns:1fr}}