:root{--bg-color: #1a1a1a;--bg-color-secondary: #222222;--panel-bg: #2a2a2a;--panel-bg-hover: #333333;--panel-bg-active: #3a3a3a;--surface-inset: #1a1a1a;--text-primary: #cccccc;--text-secondary: #858585;--text-muted: #5a5a5a;--accent-color: #00bcd4;--accent-hover: #00a5bb;--accent-muted: rgba(0, 188, 212, .15);--accent-glow: rgba(0, 188, 212, .25);--border-color: #383838;--border-color-strong: #505050;--danger-color: #f44336;--danger-hover: #d32f2f;--btn-secondary-bg: transparent;--btn-secondary-border: #505050;--btn-secondary-hover-bg: #333333;--scrollbar-thumb: #555;--scrollbar-track: transparent;--box-shadow: 0 1px 3px rgba(0, 0, 0, .5);--border-radius: 1px;--font-family: "Segoe UI", system-ui, -apple-system, sans-serif;--font-mono: "Consolas", "SF Mono", "Fira Code", monospace;--overlay-color: rgba(0, 188, 212, .08);--app-bar-height: 36px;--sidebar-width: 280px;--status-bar-height: 24px;--floating-panel-width: 280px;--login-grid-color: rgba(0, 188, 212, 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transparent;--btn-secondary-border: #c0c0c0;--btn-secondary-hover-bg: #e8e8e8;--scrollbar-thumb: #bbb;--scrollbar-track: transparent;--box-shadow: 0 1px 3px rgba(0, 0, 0, .1);--overlay-color: rgba(0, 120, 212, .06);--login-grid-color: rgba(0, 120, 212, .03);--login-grid-color-strong: rgba(0, 120, 212, .06);--canvas-bg-r: .94;--canvas-bg-g: .94;--canvas-bg-b: .94;--grid-emissive-r: .55;--grid-emissive-g: .55;--grid-emissive-b: .55;--fov-fill: rgba(120, 120, 120, .25);--fov-stroke: rgba(100, 100, 100, .5);--fov-center-stroke: rgba(80, 80, 80, .7);--kbd-color: var(--text-muted);--kbd-bg: var(--bg-color-secondary);--kbd-border: var(--border-color);--help-color: var(--text-muted);--help-bg: var(--bg-color-secondary);--help-border: 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p{font-size:.68rem;color:var(--text-secondary);line-height:1.35;margin:0}.landing-footer{text-align:center;padding:.6rem 2rem;border-top:1px solid var(--border-color);font-size:.65rem;color:var(--text-muted);flex-shrink:0}.landing-footer a{color:var(--accent-color);text-decoration:none}.landing-footer a:hover{text-decoration:underline}@media(max-width:768px){.landing-body{flex-direction:column;padding:1rem 1.5rem;gap:1rem;overflow-y:auto}.landing-hero{flex:none;align-items:center;text-align:center}.landing-auth{max-width:280px;margin:0 auto}.landing-features{grid-template-columns:repeat(2,1fr)}}@media(max-width:480px){.landing-body{padding:1rem}.landing-features{grid-template-columns:1fr}.landing-title{font-size:1.3rem}.landing-subtitle{font-size:.78rem}.landing-header{padding:.6rem 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var(--border-color);border-radius:var(--border-radius);background:var(--bg-color-secondary);color:var(--text-primary);cursor:pointer;outline:none}.storey-select:disabled{opacity:.5;cursor:not-allowed}.floor-plan-container{position:relative;flex:1;width:100%;background:var(--bg-color-secondary);overflow:hidden;cursor:crosshair}.floor-plan-container.loading:after{content:"Generating…";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:var(--bg-color-secondary);color:var(--text-secondary);font-size:.8rem;z-index:6}.floor-plan-img{width:100%;display:block;pointer-events:none}.floor-plan-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:4}.floor-plan-pointer{position:absolute;width:10px;height:10px;background:var(--danger-color);border:2px solid white;border-radius:50%;transform:translate(-50%,-50%);pointer-events:none;display:none;box-shadow:0 0 4px #0006;z-index:5}#myCanvas{position:absolute;top:var(--app-bar-height);left:0;right:0;bottom:0;width:100%;height:calc(100% - var(--app-bar-height));z-index:1}body.sidebar-open #myCanvas{left:var(--sidebar-width);width:calc(100% - var(--sidebar-width))}body.status-bar-visible #myCanvas{bottom:var(--status-bar-height);height:calc(100% - var(--app-bar-height) - var(--status-bar-height))}body.sidebar-open.status-bar-visible #myCanvas{left:var(--sidebar-width);width:calc(100% - var(--sidebar-width));bottom:var(--status-bar-height);height:calc(100% - var(--app-bar-height) - var(--status-bar-height))}#navcube-canvas{position:fixed;bottom:calc(var(--status-bar-height) + 1rem);right:1rem;width:100px;height:100px;z-index:10;pointer-events:auto;display:none}#navcube-arrow-overlay{position:fixed;bottom:calc(var(--status-bar-height) + 1rem);right:1rem;width:100px;height:100px;z-index:11;pointer-events:none;display:none}#overview-canvas{position:fixed;bottom:calc(var(--status-bar-height) + 1rem + 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.75rem;background:var(--panel-bg);border-top:1px solid var(--border-color);z-index:400}.status-bar.hidden{display:none}.status-bar-group{display:flex;align-items:center;gap:.4rem}.status-bar-label{font-size:.6rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;width:2.5rem;flex-shrink:0}.status-bar-slider{width:100px;height:3px;-webkit-appearance:none;appearance:none;background:var(--border-color);border-radius:0;outline:none;cursor:pointer}.status-bar-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:8px;height:8px;background:var(--accent-color);border-radius:0;cursor:pointer}.status-bar-slider::-moz-range-thumb{width:8px;height:8px;background:var(--accent-color);border:none;border-radius:0;cursor:pointer}.status-bar-val{font-size:.6rem;font-family:var(--font-mono);color:var(--text-secondary);width:2rem;text-align:right;flex-shrink:0}@media(max-width:480px){.status-bar{gap:.5rem;padding:0 .4rem}.status-bar-slider{width:60px}.status-bar-label{width:auto}}.overlay{position:fixed;top:var(--app-bar-height);left:0;width:100%;height:calc(100% - var(--app-bar-height));display:flex;justify-content:center;align-items:center;z-index:20;pointer-events:none}.overlay.hidden{display:none}.glass-panel{background:var(--panel-bg);border:1px solid var(--border-color);border-top:2px solid var(--accent-color);border-radius:var(--border-radius);padding:1.5rem;box-shadow:var(--box-shadow);pointer-events:auto;max-width:440px;width:90%}.text-center{text-align:center}h1,h3{margin-bottom:.5rem;font-weight:500}h4{font-weight:500;color:var(--text-primary)}p{color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.5;font-size:.95rem}.upload-icon{color:var(--text-muted);margin-bottom:.35rem}.dropzone{border:1px solid var(--border-color);border-radius:var(--border-radius);padding:1.25rem 1rem;cursor:pointer;background:var(--surface-inset);transition:border-color .1s,box-shadow 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var(--border-color);border-radius:var(--border-radius);color:var(--text-primary);font-size:.8rem;font-family:var(--font-mono);outline:none}#url-input:focus{border-color:var(--accent-color)}#url-input::placeholder{color:var(--text-muted)}.url-load-row .btn-primary{white-space:nowrap;padding:.35rem .75rem}.actions{display:flex;gap:.5rem;margin-top:.75rem;margin-bottom:.5rem}.kbd-hint{font-family:var(--font-mono);font-size:.55rem;padding:.05rem .2rem;border:1px solid var(--kbd-border);border-radius:2px;background:var(--kbd-bg);color:var(--kbd-color);margin-left:.2rem;vertical-align:middle;opacity:.5}.pov-actions 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var(--border-color);top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;pointer-events:auto}.tool-wheel-sector{position:absolute;width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:var(--panel-bg);cursor:pointer;transition:background .1s;pointer-events:auto}.tool-wheel-sector[data-pos=top]{clip-path:polygon(50% 50%,0 0,100% 0)}.tool-wheel-sector[data-pos=right]{clip-path:polygon(50% 50%,100% 0,100% 100%)}.tool-wheel-sector[data-pos=bottom]{clip-path:polygon(50% 50%,100% 100%,0 100%)}.tool-wheel-sector[data-pos=left]{clip-path:polygon(50% 50%,0 100%,0 0)}.tool-wheel-sector.active,.tool-wheel-sector:hover{background:var(--accent-color)}.tool-wheel-sector.active .tool-wheel-label,.tool-wheel-sector:hover .tool-wheel-label{color:#fff}.tool-wheel-sector.active svg,.tool-wheel-sector:hover svg{stroke:#fff}.tool-wheel-label{position:absolute;display:flex;flex-direction:column;align-items:center;gap:2px;font-family:var(--font-family);font-size:.65rem;font-weight:500;color:var(--text-primary);pointer-events:none;-webkit-user-select:none;user-select:none}.tool-wheel-sector[data-pos=top] .tool-wheel-label{top:18%;left:50%;transform:translate(-50%)}.tool-wheel-sector[data-pos=right] .tool-wheel-label{top:50%;right:14%;transform:translateY(-50%)}.tool-wheel-sector[data-pos=bottom] .tool-wheel-label{bottom:18%;left:50%;transform:translate(-50%)}.tool-wheel-sector[data-pos=left] .tool-wheel-label{top:50%;left:8%;transform:translateY(-50%)}.tool-wheel-ring:after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(to bottom right,transparent calc(50% - .5px),var(--border-color-strong) calc(50% - .5px),var(--border-color-strong) calc(50% + .5px),transparent calc(50% + .5px)),linear-gradient(to top right,transparent calc(50% - 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var(--danger-color)}.toast.toast-success{border-left:3px solid #4caf50}.toast.toast-info{border-left:3px solid var(--accent-color)}.toast-dismiss{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:1rem;padding:0 0 0 .5rem;line-height:1;flex-shrink:0}.toast-dismiss:hover{color:var(--text-primary)}@keyframes toast-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes toast-out{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(10px)}}.loading-content{display:flex;align-items:center;gap:.5rem}.loading-progress-track{width:200px;height:3px;background:var(--border-color);border-radius:2px;margin-top:.5rem;overflow:hidden}.loading-progress-bar{height:100%;background:var(--accent-color);border-radius:2px;width:0%;transition:width .3s ease}.loading-progress-bar.indeterminate{width:30%;animation:indeterminate 1.5s ease-in-out infinite}@keyframes indeterminate{0%{transform:translate(-100%)}to{transform:translate(400%)}}body.theme-transitioning,body.theme-transitioning *,body.theme-transitioning *:before,body.theme-transitioning *:after{transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease!important}.status-bar-tool-indicator{display:flex;align-items:center;gap:.25rem;padding:0 .5rem;border-left:1px solid var(--border-color);margin-left:auto}.status-bar-tool-name{font-size:.65rem;color:var(--accent-color);font-weight:500;text-transform:uppercase;letter-spacing:.03em}.status-bar-tool-cancel{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:.85rem;padding:0;line-height:1}.status-bar-tool-cancel:hover{color:var(--danger-color)}