:root{--brand-blue: #295DE7;--brand-blue-hover: #1d4ed8;--bg: #F6F6F6;--card-bg: #ffffff;--text-primary: #333333;--text-secondary: #6c757d;--border-color: #dee2e6;--border-focus: #8cb1f3;--surface-hover: #f1f3f5;--surface-muted: #e9ecef;--pill-surface: rgba(255, 255, 255, .95);--chip-surface: rgba(255, 255, 255, .97);--carousel-panel-bg: #363636;--subtle-surface: #f4f7fb;--subtle-surface-hover: #edf4fb;--overlay-float: rgba(255, 255, 255, .82);--loader-scrim: rgba(246, 246, 246, .78);--accent-muted-bg: #eaf1f8;--control-outline: rgba(0, 0, 0, .22);--control-outline-muted: rgba(0, 0, 0, .14);--control-outline-hover: rgba(0, 0, 0, .32);--control-sheen: none;--header-height: 65px;--border-hover: #cfd4da;--brand-surface: rgba(41, 93, 231, .12);--brand-border-soft: rgba(41, 93, 231, .25);--brand-border-strong: rgba(41, 93, 231, .78);--brand-focus-ring: rgba(41, 93, 231, .34);--brand-inset-glow: rgba(41, 93, 231, .2);--section-axis-x: #ef4444;--section-axis-y: #10b981;--section-axis-z: #3b82f6;--z-header: 110;--z-modal: 1000;--z-floating-over-modal: 1320;--z-modal-chrome: 1325;--z-modal-close: 1326;--z-image-tools-fab: 1300;--z-active-chips-mobile: 1301;--z-active-chips: 1315;--z-mobile-carousel: 1304;--z-mobile-viewer-sidebar: 1305;--z-mobile-image-controls: 1306;--z-mobile-control-rail: 1310}:root[data-theme=dark]{color-scheme:dark;--bg: #121418;--card-bg: #1c1f27;--text-primary: #e8eaed;--text-secondary: #9aa3ad;--border-color: #3d4450;--border-focus: #7c9ef0;--surface-hover: #2a303c;--surface-muted: #262b35;--pill-surface: rgba(38, 42, 52, .96);--chip-surface: rgba(34, 38, 48, .98);--carousel-panel-bg: #2b2b2b;--subtle-surface: #262c38;--subtle-surface-hover: #303848;--overlay-float: rgba(40, 44, 54, .9);--loader-scrim: rgba(14, 16, 20, .78);--accent-muted-bg: rgba(41, 93, 231, .18);--control-outline: rgba(255, 255, 255, .44);--control-outline-muted: rgba(255, 255, 255, .32);--control-outline-hover: rgba(255, 255, 255, .62);--control-sheen: 0 0 0 1px rgba(0, 0, 0, .55), 0 2px 10px rgba(0, 0, 0, .4);--border-hover: #5c6578}*{box-sizing:border-box}html,body{height:100%;margin:0;background:var(--bg);color:var(--text-primary);font-family:Poppins,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;font-size:16px;line-height:1.5;overflow:hidden;width:100%}#app-header{position:fixed;top:0;left:0;right:0;height:var(--header-height);background:var(--card-bg);border-bottom:1px solid var(--border-color);z-index:var(--z-header);padding:0 24px}.header-content{max-width:1200px;margin:0 auto;height:100%;display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:12px;font-weight:600;font-size:20px}.user-info{display:flex;align-items:center;gap:16px}.header-utility{display:inline-flex;align-items:center;gap:8px}.header-info-note{font-size:.72rem;color:var(--text-secondary);border:1px solid var(--border-color);border-radius:999px;padding:2px 8px;line-height:1.4;white-space:nowrap}.header-link-btn{width:28px;height:28px;border-radius:999px;border:1px solid var(--border-color);color:var(--text-primary);background:var(--card-bg);display:inline-flex;align-items:center;justify-content:center;text-decoration:none}.header-link-btn:hover{background:var(--surface-hover);border-color:var(--border-hover)}.header-link-btn.active{background:var(--brand-surface);color:var(--brand-blue);border-color:var(--brand-border-soft)}.header-project-switcher{display:flex;align-items:center;gap:8px;color:var(--text-primary);font-size:.9rem}.header-project-select{padding:6px 8px;border-radius:6px;border:1px solid var(--border-color);background:var(--card-bg);color:var(--text-primary)}.header-theme-toggle{width:28px;height:28px;border-radius:999px;border:1px solid var(--border-color);color:var(--text-primary);background:var(--card-bg);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0}.header-theme-toggle:hover{background:var(--surface-hover);border-color:var(--border-hover)}.sidebar-toggle-btn{width:30px;height:30px;border-radius:999px;border:1px solid var(--border-color);color:var(--text-primary);background:var(--card-bg);display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.sidebar-toggle-btn:hover{background:var(--surface-hover);border-color:var(--border-hover)}.sidebar-toggle-btn.active{background:var(--brand-surface);color:var(--brand-blue);border-color:var(--brand-border-soft)}.btn.btn-secondary{background:var(--surface-hover);border-color:var(--surface-hover)}.btn.btn-secondary:hover{background:var(--surface-muted)}.logo-img{height:32px;width:auto}.logo-img-auth{height:60px;width:auto}.wrap{padding-top:var(--header-height);height:100dvh;display:grid;grid-template-rows:1fr}main{position:relative;height:100%;overflow-y:auto}.page-section{padding:40px 20px;min-height:100%;display:flex;flex-direction:column;justify-content:center;position:absolute;width:100%;top:0;left:0;opacity:1;transition:opacity .3s ease-in-out}.hidden{opacity:0;pointer-events:none;height:0;overflow:hidden}.d-none{display:none!important}.auth-container{max-width:800px;margin:0 auto;background:var(--card-bg);border:1px solid var(--border-color);border-radius:12px;box-shadow:0 6px 24px #00000012;display:flex;overflow:hidden;width:100%;position:relative}.auth-info{flex-basis:45%;background:var(--subtle-surface);padding:40px 32px;border-right:1px solid var(--border-color)}.auth-info h3{margin:0 0 10px;font-size:22px;color:var(--brand-blue)}.auth-info p{margin:0;font-size:14px;color:var(--text-secondary);line-height:1.6}.auth-form{flex-basis:55%;padding:40px 32px}.auth-logo{text-align:center;margin-bottom:24px}.auth-form h2{margin:0 0 24px;font-size:24px;font-weight:600;text-align:center}.row{display:flex;flex-direction:column;gap:6px;margin-top:16px}.row label{font-weight:500;font-size:14px}.row input{padding:12px;background:var(--card-bg);color:var(--text-primary);border:1px solid var(--border-color);border-radius:8px;font-size:16px;transition:border-color .2s,box-shadow .2s;font-family:inherit}.row input:focus{outline:none;border-color:var(--brand-blue);box-shadow:0 0 0 3px var(--border-focus)}.signin-actions{margin-top:24px}.forgot-password{text-align:center;margin-top:16px}.forgot-password a{font-size:13px;color:var(--text-secondary);text-decoration:none}.forgot-password a:hover{color:var(--brand-blue);text-decoration:underline}.error-message{padding:12px 15px;margin-top:20px;background-color:#f8d7da;color:#721c24;border:1px solid #f5c6cb;border-radius:8px;font-size:14px;text-align:center}.fullscreen-btn-auth{position:absolute;top:16px;right:16px;padding:8px 10px;z-index:5;display:none}@media(min-width:769px){.fullscreen-btn-auth{display:inline-flex}}.btn.full-width{width:100%}#file-browser{padding-top:30px;padding-bottom:30px}.file-browser-container{max-width:900px;margin:0 auto;background:var(--card-bg);border-radius:12px;padding:24px;box-shadow:0 6px 24px #00000012;width:100%}.file-browser-header{display:flex;justify-content:space-between;align-items:center;padding-bottom:15px;gap:15px}.file-browser-header h2{margin:0;font-size:22px}.file-browser-actions{display:flex;gap:10px}.search-bar{position:relative}.search-bar .bi-search{position:absolute;top:13px;left:14px;color:var(--text-secondary)}.search-bar input{width:100%;padding:12px 12px 12px 40px;font-family:inherit;font-size:15px;border-radius:8px;border:1px solid var(--border-color)}.search-bar input:focus{outline:none;border-color:var(--brand-blue);box-shadow:0 0 0 3px var(--border-focus)}.table-responsive{overflow-x:auto}.file-table{width:100%;border-collapse:collapse;margin-top:20px;table-layout:fixed}.file-table th,.file-table td{padding:20px 16px;text-align:left;border-bottom:1px solid var(--border-color);vertical-align:middle}.file-table th{font-weight:600;font-size:14px;color:var(--text-secondary);padding-top:0}.file-table th:nth-child(1){width:70%}.file-table th:nth-child(2){width:30%}.file-table tbody tr{cursor:pointer;transition:background-color .2s}.file-table tbody tr:hover{background-color:#f5f8ff}.file-table .file-name-cell{font-weight:500;display:flex;align-items:center;gap:15px}.file-table .file-name-cell .bi{font-size:20px;color:var(--brand-blue)}.no-files td{text-align:center;padding:40px;color:var(--text-secondary)}#viewer{padding:0;display:flex;min-height:0;height:100%}.viewer-container{display:flex;width:100vw;height:100%}@media(min-width:501px){.viewer-container.image-focus-mode #viewer-sidebar{display:none}.viewer-container.image-focus-mode .content-area{flex:1 1 100%;width:100%}.viewer-container.sidebar-hidden #viewer-sidebar{display:none}.viewer-container.sidebar-hidden .content-area{flex:1 1 100%;width:100%}.viewer-container.sidebar-hidden .active-state-chips{left:52px}}.content-area{display:flex;flex:1;order:2;flex-direction:column;height:100%;overflow:hidden;position:relative}#canvas-wrapper{flex-grow:1;order:1;position:relative;overflow:hidden;background:var(--bg);min-height:0}#static-viewer-overlay{position:absolute;top:15px;right:15px;z-index:11;width:25%;min-width:400px;max-width:1000px;height:auto;pointer-events:none;border-radius:4px;filter:drop-shadow(0px 2px 4px rgba(0,0,0,.5))}.mobile-resize-btn{display:none}.photo-overlay-layer{position:absolute;top:0;right:0;bottom:0;left:0;z-index:16;pointer-events:none;display:flex;align-items:center;justify-content:center}.photo-overlay-image{width:100%;height:100%;object-fit:contain;mix-blend-mode:screen}.image-tools-fab{position:fixed;top:76px;right:10px;z-index:var(--z-image-tools-fab);display:grid;gap:6px}.image-panel-tools-dock{width:auto;max-width:calc(100vw - 220px);background:transparent;border:none;border-radius:0;box-shadow:none;padding:0;display:grid;gap:6px;justify-items:center;z-index:1;align-self:flex-end;position:relative}.image-panel-controls-row{position:absolute;left:50%;transform:translate(-50%);bottom:8px;display:flex;align-items:flex-end;justify-content:center;gap:10px;width:max-content;max-width:calc(100vw - 220px);z-index:var(--z-floating-over-modal)}.image-panel-controls-row.is-open{bottom:calc(var(--desktop-image-panel-height, 150px) + 8px)}.image-panel-resize-handle,.mobile-resize-btn{position:relative;width:32px;min-width:32px;height:32px;min-height:32px;padding:0;border:1px solid var(--control-outline);border-radius:999px;background:var(--pill-surface);color:var(--text-primary);display:inline-flex;align-items:center;justify-content:center;gap:6px;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);cursor:ns-resize;box-shadow:var(--control-sheen);z-index:1;transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease}.image-panel-resize-handle i,.mobile-resize-btn i{font-size:.9rem;line-height:1}.image-panel-resize-handle:hover,.mobile-resize-btn:hover{background:var(--card-bg);border-color:var(--control-outline-hover)}.image-panel-resize-handle:focus-visible,.mobile-resize-btn:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px}.image-tools-chip-row{display:flex;gap:6px}.image-tools-main-row{display:flex;width:auto;align-items:center;justify-content:center;gap:6px}.image-tools-toggle-group{--image-controls-height: 32px;display:inline-flex;width:auto;justify-self:center;align-items:center;border:1px solid var(--brand-border-strong);border-radius:999px;background:var(--pill-surface);overflow:hidden;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);box-sizing:border-box;min-height:var(--image-controls-height);box-shadow:0 0 0 1px var(--brand-focus-ring)}.image-tools-chip{border:none;border-radius:0;background:transparent;color:var(--text-primary);font-size:.78rem;height:30px;min-height:30px;padding:4px 10px;display:inline-flex;flex:0 0 auto;align-items:center;justify-content:center;gap:6px;cursor:pointer}.image-tools-segment+.image-tools-segment{border-left:1px solid rgba(0,0,0,.16)}.image-tools-chip.active{background:var(--brand-surface);color:var(--brand-blue)}.image-tools-chip:disabled{opacity:.45;cursor:not-allowed}.image-tools-close-segment{min-width:34px;padding:4px 8px}.image-tools-close-chip{min-width:30px;padding:4px 8px}.image-tools-overlay-controls{display:flex;align-items:center;gap:8px;background:var(--pill-surface);border:1px solid var(--control-outline-muted);border-radius:999px;padding:4px 8px;justify-self:center;box-shadow:var(--control-sheen)}.image-tools-floating-stack{position:absolute;left:50%;bottom:calc(100% + 6px);transform:translate(-50%);z-index:2;margin:0;white-space:nowrap;display:grid;gap:6px;justify-items:center}.image-tools-overlay-controls input[type=range]{width:90px}.active-state-chips{position:absolute;top:14px;left:12px;right:12px;display:flex;flex-wrap:wrap;gap:6px;z-index:var(--z-active-chips);pointer-events:none}.active-state-chip{pointer-events:auto;border:1px solid var(--border-color);background:var(--chip-surface);color:var(--text-primary);border-radius:999px;min-height:28px;padding:0 10px;display:inline-flex;align-items:center;gap:6px;font-size:.74rem;font-weight:600}.image-selected-chip{gap:8px}.chip-mini-btn{border:1px solid var(--border-color);background:var(--card-bg);color:var(--brand-blue);border-radius:999px;min-height:22px;padding:0 8px;font-size:.68rem;font-weight:700;cursor:pointer}.chip-mini-btn-danger{color:#b42318}.chip-mini-btn:disabled{background:var(--surface-muted);color:#9aa3ad;border-color:#d7dde4;cursor:not-allowed}@media(max-width:500px){.active-state-chips{top:calc(env(safe-area-inset-top,0px) + 8px);left:8px;right:8px;gap:5px;z-index:var(--z-active-chips-mobile)}.active-state-chip{min-height:26px;padding:0 8px;font-size:.7rem;gap:5px}.chip-mini-btn{min-height:20px;padding:0 7px;font-size:.64rem}}.image-tools-mini-label{font-size:.72rem;color:var(--text-secondary);display:inline-flex;align-items:center;gap:4px}.image-tools-reset-btn{border:1px solid rgba(0,0,0,.2);border-radius:999px;background:var(--card-bg);padding:2px 8px;font-size:.78rem;cursor:pointer}.image-tools-warning{font-size:.72rem;line-height:1.3;color:#b54708;background:#fff4e5f2;border:1px solid rgba(249,186,91,.7);border-radius:10px;padding:6px 10px;max-width:min(520px,calc(100vw - 48px));box-sizing:border-box;text-align:center;justify-self:center}.image-tools-warning-floating{white-space:normal}@media(min-width:701px){.image-tools-warning-floating{white-space:nowrap}}#carousel-container{flex-shrink:0;order:2;overflow-x:hidden;display:none;opacity:0;height:0;padding-top:0;transition:opacity .2s ease}#carousel-container.visible{display:flex;opacity:1;height:var(--desktop-image-panel-height, 150px);padding-top:0;width:100%;background:var(--carousel-panel-bg)}#canvas{width:100%;height:100%;display:block;background:var(--bg)}#viewer-sidebar{position:relative;order:1;flex-basis:280px;flex-shrink:0;background:var(--card-bg)!important;border-right:1px solid var(--border-color);padding:14px;z-index:10;display:flex;flex-direction:column;gap:20px;box-shadow:none;overflow-y:auto}.sidebar-top-controls{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.sidebar-top-title{margin:0;font-size:.95rem;font-weight:700;color:var(--text-primary)}.sidebar-toggle-inline{flex:0 0 auto}.sidebar-toggle-floating{position:absolute;top:14px;left:12px;z-index:var(--z-modal-close)}#viewer-sidebar>*{width:100%;flex-shrink:0}.sidebar-controls-grid{display:grid;gap:14px}.category{font-size:14px;font-weight:600;color:var(--text-secondary);margin-bottom:8px;text-transform:uppercase}#viewer-sidebar h3{margin:0 0 10px;font-size:18px}.sidebar-btn{width:100%;min-height:36px}.mobile-group-tabs{display:none}.sidebar-group{display:block}.mobile-control-rail{display:none}.sidebar-group-tools{display:grid;gap:8px}.sidebar-group-tools .section-subcontrols{margin-top:2px;width:100%;display:grid;gap:8px}.section-axis-list{display:grid;gap:8px}.section-frame-controls{display:grid;gap:6px}.section-frame-label{display:grid;gap:4px;font-size:.78rem;color:var(--text-secondary)}.section-frame-label-x{color:var(--section-axis-x)}.section-frame-label-y{color:var(--section-axis-y)}.section-frame-label-z{color:var(--section-axis-z)}.section-rotation-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:4px;border-radius:999px;background:#d7dce3}input[type=range]{--slider-color: var(--brand-blue);-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:14px;background:transparent;outline:none}input[type=range]:focus,input[type=range]:focus-visible{outline:none;box-shadow:none}input[type=range]::-webkit-slider-runnable-track{height:4px;border-radius:999px;background:#d7dce3;border:none;outline:none;box-shadow:none}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;margin-top:-4px;width:12px;height:12px;border-radius:999px;border:none;outline:none;box-shadow:none;background:var(--slider-color)}input[type=range]::-moz-range-track{height:4px;border-radius:999px;background:#d7dce3;border:none;outline:none;box-shadow:none}input[type=range]::-moz-range-thumb{width:12px;height:12px;border-radius:999px;border:none;outline:none;box-shadow:none;background:var(--slider-color)}.section-rotation-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:12px;height:12px;border-radius:999px;border:none;cursor:pointer;background:var(--slider-color, var(--brand-blue))}.section-rotation-slider::-moz-range-track{height:4px;border-radius:999px;background:#d7dce3}.section-rotation-slider::-moz-range-thumb{width:12px;height:12px;border-radius:999px;border:none;cursor:pointer;background:var(--slider-color, var(--brand-blue))}.section-rotation-slider.section-rotation-slider-x{--slider-color: var(--section-axis-x)}.section-rotation-slider.section-rotation-slider-y{--slider-color: var(--section-axis-y)}.section-rotation-slider.section-rotation-slider-z{--slider-color: var(--section-axis-z)}.section-axis-item{display:grid;gap:6px}.section-axis-row{display:flex;align-items:center;gap:6px}.axis-toggle-btn{min-height:30px;padding:0 10px;flex:1 1 auto}.axis-toggle-btn .tools-btn-main-label{font-size:.8rem;gap:6px}.axis-toggle-btn .tools-btn-disclosure{font-size:.72rem}.axis-reverse-btn{min-height:30px;padding:0 9px;font-size:.76rem;white-space:nowrap;flex:0 0 auto}.section-axis-expanded{display:grid;gap:6px;padding-left:0}.tools-chip-btn{width:100%;justify-content:center;min-height:36px;padding:0 12px;font-weight:600;text-align:center}.tools-chip-btn.has-disclosure{justify-content:space-between}.tools-btn-main-label{display:inline-flex;align-items:center;gap:8px}.tools-btn-disclosure{font-size:.78rem;opacity:.9}.feature-helper-text{margin:2px 0 0;font-size:.78rem;line-height:1.35;color:var(--text-secondary)}.measurement-list{display:grid;gap:6px}.measurement-list-header{display:flex;align-items:center;justify-content:space-between}.measurement-list-title{font-size:.75rem;letter-spacing:.02em;text-transform:uppercase;color:var(--text-secondary);font-weight:600}.measurement-clear-all-btn{border:1px solid var(--border-color);background:var(--card-bg);color:var(--brand-blue);border-radius:999px;min-height:24px;padding:0 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transparent;background:transparent;color:var(--text-secondary);width:20px;height:20px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.measurement-delete-btn:hover{background:#103d611a;color:var(--brand-blue)}.analysis-detail-panel{margin-top:5px;width:100%;display:grid;gap:6px}.analysis-control-block{display:grid;gap:4px}.analysis-control-label{font-size:.8rem;color:var(--text-secondary)}.analysis-slider-labels{display:flex;justify-content:space-between;font-size:.75rem;color:var(--text-secondary)}.sidebar-group-view{display:grid;gap:8px}.sidebar-group-view .category{margin-bottom:4px}.sidebar-section-card{background:transparent;border:none;border-radius:0;padding:6px 0 0}.sidebar-section-card+.sidebar-section-card{border-top:1px solid var(--border-color);padding-top:14px}.sidebar-section-card .category{margin-top:0}.view-btn:not(:last-child){border-right:none}.view-btn.active{background-color:var(--brand-blue);color:#fff;border-color:var(--brand-blue);font-weight:700}.view-btn.active:hover{background-color:var(--brand-blue-hover);border-color:var(--brand-blue-hover);cursor:default}.view-selector{display:flex;width:100%;gap:0;grid-column:1 / -1;border:1px solid var(--border-color);border-radius:999px;overflow:hidden;background:var(--pill-surface)}.view-selector .view-btn{flex:1;border:none;border-radius:0;padding:8px 10px}.view-selector .view-btn+.view-btn{border-left:1px solid rgba(0,0,0,.14)}.view-btn:disabled,.view-selector .view-btn:disabled{opacity:.4;cursor:not-allowed;pointer-events:none;color:var(--text-muted, #888)}.view-btn:disabled:hover,.view-selector .view-btn:disabled:hover{background:transparent}.view-selector .view-btn:first-child{border-radius:999px 0 0 999px}.view-selector .view-btn:last-child{border-radius:0 999px 999px 0}a.btn{text-decoration:none}.checkbox-label{display:flex;align-items:center;gap:10px;padding:8px 12px;cursor:pointer;-webkit-user-select:none;user-select:none;font-size:14px;border-radius:8px;transition:background-color .2s}.checkbox-label:hover{background-color:#0000000d}input[type=checkbox]{opacity:0;position:absolute;width:0;height:0}.custom-checkbox{width:20px;height:20px;background:var(--card-bg);border:2px solid var(--border-color);border-radius:5px;position:relative;transition:background-color .2s,border-color .2s}.custom-checkbox:after{content:"";position:absolute;display:none;left:6px;top:2px;width:5px;height:11px;border:solid white;border-width:0 2px 2px 0;transform:rotate(45deg)}input[type=checkbox]:checked+.custom-checkbox{background-color:var(--brand-blue);border-color:var(--brand-blue)}input[type=checkbox]:checked+.custom-checkbox:after{display:block}.btn{font:inherit;font-size:.84rem;font-weight:500;border-radius:999px;padding:8px 12px;min-height:36px;cursor:pointer;border:1px solid var(--border-color);background:var(--card-bg);color:var(--text-primary);transition:all .2s;display:inline-flex;align-items:center;justify-content:center;gap:6px;-webkit-tap-highlight-color:transparent}.btn:hover{background:var(--surface-hover)}.btn.brand{background:var(--brand-blue);color:#fff;border-color:var(--brand-blue)}.btn.brand:hover{background:var(--brand-blue-hover);border-color:var(--brand-blue-hover)}#loader-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--loader-scrim);display:flex;justify-content:center;align-items:center;z-index:20;transition:opacity .3s ease-in-out}#loader-overlay.hidden{opacity:0;pointer-events:none}.spinner{width:56px;height:56px;border-radius:50%;border:6px solid #e9ecef;border-top-color:var(--brand-blue);animation:spin 1s ease-in-out infinite}@keyframes spin{to{transform:rotate(360deg)}}.measurement-label{color:var(--text-primary);background:var(--overlay-float);padding:4px 8px;border-radius:5px;font-size:14px;font-weight:500;border:1px solid rgba(0,0,0,.1);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);box-shadow:0 2px 5px #0000001a}.section-slider{position:absolute;bottom:20px;left:50%;transform:translate(-50%);width:60%;max-width:500px;z-index:10;cursor:ew-resize}.axis-btn{min-width:42px;width:auto;min-height:32px;padding:0 10px;font-weight:600}.axis-btn.active{color:#fff}.axis-btn.axis-x.active{background-color:var(--section-axis-x);border-color:var(--section-axis-x)}.axis-btn.axis-y.active{background-color:var(--section-axis-y);border-color:var(--section-axis-y)}.axis-btn.axis-z.active{background-color:var(--section-axis-z);border-color:var(--section-axis-z)}.icon-chip-btn.axis-btn.active{color:#fff}.no-scroll{overflow:hidden}#section-axis-controls{position:absolute;left:20px;top:50%;transform:translateY(-50%);z-index:10;display:flex;flex-direction:column;gap:10px;background:var(--overlay-float);padding:10px;border-radius:12px;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);border:1px solid rgba(0,0,0,.1);box-shadow:0 4px 12px #0000001a}.sidebar-tools-row{display:flex;justify-content:flex-start;flex-wrap:wrap;gap:8px;padding-left:4px}.sidebar-group-view .sidebar-tools-row .icon-chip-btn.with-label{flex:0 0 calc(50% - 4px);width:calc(50% - 4px);justify-content:center}.icon-chip-btn{width:36px;height:36px;border-radius:999px;border:1px solid var(--border-color);background:var(--card-bg);color:var(--text-primary);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.icon-chip-btn:hover{background:var(--surface-hover);border-color:var(--border-hover)}.icon-chip-btn:disabled{background:var(--surface-muted);color:#9aa3ad;border-color:#d7dde4;cursor:not-allowed;opacity:1}.icon-chip-btn:disabled:hover{background:var(--surface-muted);border-color:#d7dde4}.icon-chip-btn.active{background:var(--brand-surface);border-color:var(--brand-blue);color:var(--brand-blue)}.icon-chip-btn i{font-size:1rem;line-height:1}.icon-chip-btn.with-label{width:auto;border-radius:999px;padding:0 12px;gap:8px}.icon-chip-btn.with-label span{font-size:.82rem;font-weight:600;white-space:nowrap}@media(max-width:500px){:root{--mobile-panel-content-height: 140px;--mobile-menu-collapsed-height: 60px;--mobile-menu-open-height: calc(var(--mobile-panel-content-height) + var(--mobile-menu-collapsed-height));--mobile-bottom-safe: env(safe-area-inset-bottom, 0px);--mobile-rail-gap: 8px;--mobile-nav-height: 56px;--mobile-horizontal-padding: 10px;--mobile-carousel-vpad: 10px}html,body{overflow:hidden!important;height:100dvh!important}.wrap{height:100dvh!important;display:block!important}main{height:100%!important;overflow:hidden!important}.page-section{padding:20px 15px;justify-content:flex-start}#auth{padding-top:40px}.auth-container{display:block}.auth-info{display:none}.file-browser-header{flex-direction:column;align-items:stretch;text-align:center}.header-info-note,.sidebar-toggle-btn,.sidebar-top-title{display:none}#loader-overlay{position:fixed!important}#canvas-wrapper{order:1;min-height:62vh;max-height:none;flex:1 1 auto}.viewer-container{display:flex!important;flex-direction:column!important;height:100dvh!important;overflow:hidden!important;min-height:100dvh!important}.carousel-item-wrapper{width:30vw!important;min-width:140px!important;max-width:none!important;aspect-ratio:4 / 3;flex-shrink:0}#carousel-container.visible{display:block!important;height:var(--mobile-panel-content-height)!important;position:fixed!important;left:0;right:0;bottom:calc(var(--mobile-bottom-safe) + var(--mobile-nav-height));max-height:var(--mobile-panel-content-height)!important;min-height:var(--mobile-panel-content-height)!important;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;scroll-padding-inline:calc(var(--mobile-horizontal-padding) + env(safe-area-inset-left,0px)) calc(var(--mobile-horizontal-padding) + env(safe-area-inset-right,0px));background:var(--carousel-panel-bg)!important;margin:0;padding:0;opacity:1;order:2;flex-shrink:0;z-index:var(--z-mobile-carousel);transition:bottom .2s ease}.desktop-image-toggle{display:none!important}.image-panel-toggle-fab{bottom:calc(var(--mobile-bottom-safe) + var(--mobile-nav-height) + 8px)}.image-panel-toggle-fab.expanded{bottom:calc(var(--mobile-bottom-safe) + var(--mobile-nav-height) + var(--mobile-panel-content-height) + 10px)}.image-panel-controls-row{position:fixed;left:50%;transform:translate(-50%);bottom:calc(var(--mobile-bottom-safe) + var(--mobile-nav-height) + 8px);display:flex;align-items:flex-end;justify-content:center;gap:10px;padding:0;width:max-content;max-width:calc(100vw - 16px);z-index:var(--z-mobile-image-controls)}.image-panel-controls-row.is-open{bottom:calc(var(--mobile-bottom-safe) + var(--mobile-nav-height) + var(--mobile-panel-content-height) + 8px)}.image-panel-controls-row.menu-open{bottom:calc(var(--mobile-bottom-safe) + var(--mobile-nav-height) + var(--mobile-menu-open-height) + 8px)}.mobile-resize-btn{display:inline-flex;flex:0 0 auto}.mobile-images-resize-btn{display:inline-flex}.image-panel-resize-handle{display:none}#viewer-sidebar{border-left:none;border-top:none;order:3;display:block!important;gap:10px;padding:4px var(--mobile-horizontal-padding) 10px;overflow-y:auto!important;height:auto;position:fixed!important;left:0;right:0;bottom:calc(var(--mobile-bottom-safe) + var(--mobile-nav-height));max-height:var(--mobile-menu-open-height);background:var(--card-bg);z-index:var(--z-mobile-viewer-sidebar);transition:max-height .2s ease,bottom .2s ease}.mobile-section-header-actions{display:inline-flex;align-items:center;gap:6px}.sidebar-controls-grid{display:flex!important;flex-wrap:wrap;justify-content:space-between;gap:8px;align-items:stretch;flex-direction:row;height:auto!important;overflow-y:visible}.sidebar-controls-grid>*{flex-basis:calc(50% - 8px)}.sidebar-group .category{display:none}.mobile-section-header{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:4px 0}.mobile-section-title{font-size:.8rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-secondary);text-align:left}.mobile-section-close-btn{border:1px solid var(--border-color);background:var(--card-bg);color:var(--text-secondary);border-radius:999px;width:28px;height:28px;min-width:28px;min-height:28px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.mobile-section-close-btn i{font-size:.82rem;line-height:1}.mobile-section-close-btn:hover{background:var(--surface-hover);border-color:var(--border-hover)}.sidebar-group{display:none!important;width:100%;flex-basis:100%}.sidebar-group.mobile-active{display:grid!important;gap:8px}.sidebar-group.mobile-active .view-selector,.sidebar-group.mobile-active .sidebar-tools-row,.sidebar-group.mobile-active .sidebar-group-tools,.sidebar-group.mobile-active .section-subcontrols{gap:8px}.sidebar-section-card{padding-top:0;border-top:none}.sidebar-section-card+.sidebar-section-card{border-top:none;padding-top:0}.view-selector .view-btn{min-height:36px;padding:8px var(--mobile-horizontal-padding);font-size:.84rem;font-weight:500}.sidebar-tools-row{display:flex;justify-content:flex-start;flex-wrap:wrap;gap:8px;padding-left:0;align-items:stretch}.sidebar-group-view .sidebar-tools-row .icon-chip-btn.with-label{flex:0 0 calc(50% - 4px);width:calc(50% - 4px);min-height:36px;padding:0 10px;justify-content:center}.sidebar-group-tools{display:grid;gap:8px}.sidebar-group-tools .tools-chip-btn{width:100%;min-height:36px;padding:0 10px;justify-content:center;text-align:center}.sidebar-group-tools .tools-chip-btn.has-disclosure{justify-content:space-between}.sidebar-group-tools .section-subcontrols,.sidebar-group-tools .section-axis-list{gap:8px}.feature-helper-text{margin-top:0;font-size:.74rem;line-height:1.25;display:block;overflow:visible;text-overflow:clip;white-space:normal}.measurement-list{gap:4px}.measurement-list-item{min-height:28px;padding:0 7px 0 9px}.measurement-list-label{font-size:.74rem}.mobile-control-rail{position:fixed;left:0;right:0;bottom:var(--mobile-bottom-safe);transform:none;display:inline-flex;align-items:center;gap:6px;width:100%;z-index:var(--z-mobile-control-rail);min-height:var(--mobile-nav-height);padding:8px var(--mobile-horizontal-padding);background:var(--card-bg);border-top:1px solid rgba(0,0,0,.12);box-shadow:0 -2px 10px #00000014;transition:bottom .2s ease;pointer-events:auto}.mobile-control-rail.rail-above-sheets.menu-open{bottom:calc(var(--mobile-bottom-safe) + var(--mobile-menu-open-height) + var(--mobile-rail-gap))}.mobile-control-rail.rail-above-sheets.images-open{bottom:calc(var(--mobile-bottom-safe) + var(--mobile-panel-content-height) + var(--mobile-rail-gap))}.mobile-control-toggle-group{display:inline-flex;align-items:center;flex:1;min-width:0;gap:0;background:var(--pill-surface);border:1px solid rgba(0,0,0,.14);border-radius:999px;overflow-x:auto;-webkit-overflow-scrolling:touch;pointer-events:auto}.mobile-control-chip{border:1px solid var(--border-color);background:var(--card-bg);color:var(--text-primary);border-radius:0;padding:6px 10px;min-height:36px;font-size:.78rem;font-weight:600;white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:6px}.mobile-control-toggle-group .mobile-control-chip{flex:1;min-width:72px;border:none;border-left:1px solid rgba(0,0,0,.14)}.mobile-control-toggle-group .mobile-control-chip:first-child{border-left:none;border-radius:999px 0 0 999px}.mobile-control-toggle-group .mobile-control-chip:last-child{border-radius:0 999px 999px 0}.mobile-control-menu-btn{border-radius:999px;width:36px;min-width:36px;height:36px;min-height:36px;padding:0;background:var(--pill-surface);border-color:var(--border-color);color:var(--text-primary);display:inline-flex;align-items:center;justify-content:center;pointer-events:auto}.mobile-control-menu-btn.active{background:var(--pill-surface);border-color:var(--border-color);color:var(--text-primary)}.mobile-control-menu-btn.collapsed-highlight{background:var(--accent-muted-bg);color:var(--brand-blue);border-color:var(--border-color)}.mobile-control-chip.active{background:var(--brand-surface);color:var(--brand-blue);border-color:inherit}.mobile-control-rail .mobile-control-menu-btn.active{background:var(--pill-surface);border-color:#00000024;color:var(--text-primary)}.mobile-control-chip i{font-size:.9rem;line-height:1}.mobile-control-menu-btn i{font-size:1.05rem;font-weight:700}#viewer-sidebar.mobile-collapsed{display:none!important;pointer-events:none}#viewer-sidebar.mobile-expanded{display:block!important;height:var(--mobile-menu-open-height);max-height:var(--mobile-menu-open-height);background:var(--card-bg);border-top:1px solid var(--border-color);pointer-events:auto}.view-selector{flex:0 0 100%!important;display:flex!important;flex-direction:row!important;width:100%!important;gap:0!important;border-radius:999px;overflow:hidden}.view-selector .view-btn{flex:1!important;border-radius:0!important;margin:0!important}.view-selector .view-btn:first-child{border-radius:999px 0 0 999px!important}.view-selector .view-btn:last-child{border-radius:0 999px 999px 0!important}#image-carousel-track{display:flex!important;flex-direction:row!important;flex-wrap:nowrap!important;align-items:center;gap:10px;box-sizing:border-box;width:max-content;min-width:max-content;flex-shrink:0;min-height:100%;height:100%!important;padding-top:var(--mobile-carousel-vpad)!important;padding-bottom:var(--mobile-carousel-vpad)!important;padding-left:calc(var(--mobile-horizontal-padding) + env(safe-area-inset-left,0px))!important;padding-right:calc(var(--mobile-horizontal-padding) + env(safe-area-inset-right,0px))!important}#image-carousel-track:after{display:none}label.faded{color:#999;opacity:.6;cursor:not-allowed;pointer-events:none}#toggle-image-panel:disabled{cursor:not-allowed}.tooltip-wrapper{position:relative;display:flex;width:100%}.viewer-container.sidebar-controls-grid.tooltip-text{visibility:hidden;width:200px;background-color:#333;color:#fff;text-align:center;border-radius:6px;padding:8px;position:absolute;z-index:100;bottom:125%;left:50%;transform:translate(-50%);opacity:0;transition:opacity .3s;font-size:12px;line-height:1.4;pointer-events:none}#static-viewer-overlay{top:10px;right:10px;width:60vw!important;min-width:300px!important}.image-tools-fab{top:calc(env(safe-area-inset-top,0px) + 64px);bottom:auto;left:50%;right:auto;transform:translate(-50%);width:calc(100vw - 16px);display:grid;justify-items:center;z-index:var(--z-image-tools-fab)}.image-panel-tools-dock{position:relative;width:auto;max-width:calc(100vw - 110px);border-radius:0;border:none;box-shadow:none;padding:0;background:transparent;z-index:1}.image-tools-main-row{width:100%;display:flex;flex-wrap:wrap;justify-content:center;gap:6px}.image-tools-toggle-group,.image-tools-overlay-controls{max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}.tooltip-text:after{content:"";position:absolute;top:100%;left:50%;margin-left:-5px;border-width:5px;border-style:solid;border-color:#333 transparent transparent transparent}.tooltip-wrapper:hover .tooltip-text{visibility:visible;opacity:1}}@media(orientation:landscape)and (max-height:500px){.section-slider{bottom:45px}#auth.page-section{justify-content:center;padding:0 15px}.auth-form{padding:0 10px}.auth-logo,.auth-form h2{margin-bottom:15px}}@media(max-width:500px)and (max-height:700px){:root{--mobile-panel-content-height: 120px;--mobile-menu-collapsed-height: 56px;--mobile-menu-open-height: calc(var(--mobile-panel-content-height) + var(--mobile-menu-collapsed-height));--mobile-nav-height: 52px;--mobile-horizontal-padding: 8px}#viewer-sidebar{padding:3px var(--mobile-horizontal-padding) 8px}.sidebar-controls-grid{gap:6px}.mobile-control-rail{padding:6px var(--mobile-horizontal-padding)}.feature-helper-text{font-size:.72rem;display:block;overflow:visible;text-overflow:clip;white-space:normal}}@media(max-width:768px){.desktop-image-toggle{display:none!important}}.sidebar-controls-grid img{width:100%;height:auto;display:block;margin:10px 0;border-radius:4px}.carousel-item-wrapper{position:relative;cursor:pointer;overflow:hidden;transition:transform .3s ease}@media(min-width:501px){#image-carousel-track{--carousel-gap: 15px;--carousel-pad-x: 20px;--carousel-thumb-min: 110px;--carousel-thumb-max: 160px;background-color:#363636;padding:20px var(--carousel-pad-x);display:grid;grid-template-columns:repeat(auto-fit,minmax(var(--carousel-thumb-min),1fr));justify-content:center;gap:var(--carousel-gap);min-width:unset;width:100%;height:fit-content;box-sizing:border-box}.carousel-item-wrapper{width:100%;max-width:var(--carousel-thumb-max, 160px);justify-self:center;height:auto;aspect-ratio:4 / 3}}.carousel-item-wrapper.selected{outline:3px solid var(--brand-blue);outline-offset:-2px;box-shadow:0 0 0 2px var(--brand-inset-glow) inset}.carousel-thumbnail{width:100%;height:100%;object-fit:cover;display:block}.zoom-icon-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background-color:#0006;color:#fff;font-size:24px;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s ease;pointer-events:none}.carousel-item-wrapper:hover .zoom-icon-overlay{opacity:1}.carousel-item-wrapper:hover{transform:scale(1.05)}.carousel-actions{position:absolute;left:8px;right:8px;bottom:8px;display:grid;grid-template-columns:1fr 1fr;gap:6px;z-index:3}.carousel-action-btn{padding:6px;min-height:30px;font-weight:600;background:var(--pill-surface);border-color:#00000026}.carousel-action-btn:hover{background:var(--card-bg)}.carousel-action-btn i{font-size:.95rem;line-height:1}.image-panel-toggle-fab{--image-controls-height: 32px;position:relative;left:auto;bottom:auto;transform:none;z-index:1;border:1px solid var(--control-outline);border-radius:999px;background:var(--pill-surface);color:var(--text-primary);display:inline-flex;align-items:center;justify-content:space-between;gap:6px;min-width:102px;min-height:var(--image-controls-height);padding:4px 10px;cursor:pointer;transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);box-sizing:border-box;box-shadow:var(--control-sheen)}.image-panel-toggle-fab.expanded{bottom:auto}.image-panel-toggle-fab:hover{background:var(--card-bg);border-color:var(--control-outline-hover)}.image-panel-toggle-fab:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px}.image-panel-toggle-fab i{font-size:.9rem;line-height:1}.image-panel-toggle-main{display:inline-flex;align-items:center;gap:6px}.image-panel-toggle-disclosure{opacity:.9}#full-image-modal{position:fixed;top:var(--header-height);left:0;width:100vw;bottom:214px;height:auto;background-color:transparent;z-index:var(--z-modal);display:flex;align-items:center;justify-content:center;padding:56px 12px 12px}#full-image-modal:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;background:#000000e6;pointer-events:none;z-index:0}#full-image-modal>*{position:relative;z-index:1}#app-header,#carousel-container,#carousel-container.visible,.mobile-control-rail,.active-state-chips,.image-panel-controls-row{z-index:var(--z-modal-chrome)}#full-image-modal.hidden{display:none}#modal-image{max-width:90%;max-height:100%;object-fit:contain}@media(max-width:500px){#full-image-modal.mobile-preview{--mobile-preview-top-safe: calc(env(safe-area-inset-top, 0px) + var(--header-height) + 52px);--mobile-preview-bottom-safe: calc(var(--mobile-bottom-safe) + var(--mobile-nav-height) + 54px);align-items:center;justify-content:center;padding-top:var(--mobile-preview-top-safe);padding-bottom:var(--mobile-preview-bottom-safe)}#full-image-modal.mobile-preview.image-toolbar-hidden{--mobile-preview-bottom-safe: calc(var(--mobile-bottom-safe) + var(--mobile-nav-height) + 8px)}#full-image-modal.mobile-preview.image-panel-open{--mobile-preview-bottom-safe: calc(var(--mobile-bottom-safe) + var(--mobile-nav-height) + var(--mobile-panel-content-height) + 54px)}#modal-image{max-width:94%;max-height:calc(100dvh - var(--mobile-preview-top-safe) - var(--mobile-preview-bottom-safe));margin-top:auto;margin-bottom:auto}}#close-modal-btn{position:fixed;top:calc(var(--header-height) + 14px);right:12px;width:30px;height:30px;border-radius:999px;border:1px solid var(--border-color);background:var(--chip-surface);color:var(--text-primary);display:inline-flex;align-items:center;justify-content:center;z-index:var(--z-modal-close);cursor:pointer;transition:background .2s ease,border-color .2s ease}#close-modal-btn i{font-size:.82rem;line-height:1}#close-modal-btn:hover{background:var(--card-bg);border-color:var(--border-hover)}@media(max-width:500px){#close-modal-btn{top:calc(env(safe-area-inset-top,0px) + var(--header-height) + 8px);right:8px;width:26px;height:26px}}.viewer-toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%);z-index:var(--z-floating-over-modal);background:#000000d9;color:#fff;padding:10px 14px;border-radius:8px;font-size:.9rem;max-width:min(420px,calc(100vw - 32px));text-align:center;box-shadow:0 4px 16px #0003}:root[data-theme=dark] .viewer-toast{background:#1e222af2;color:var(--text-primary);border:1px solid var(--border-color)}:root[data-theme=dark] .checkbox-label:hover{background-color:#ffffff0f}.viewer-error-boundary{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;padding:2rem;text-align:center;background:var(--bg);color:var(--text-primary)}.viewer-error-boundary-title{font-size:1.25rem;font-weight:600;margin:0}.viewer-error-boundary-text{margin:0;max-width:28rem;color:var(--text-secondary);font-size:.95rem}