@font-face{font-family:Stack Sans;src:url(/fonts/StackSansText-VariableFont_wght.woff2) format("woff2"),url(/fonts/StackSansText-VariableFont_wght.ttf) format("truetype");font-weight:200 700;font-style:normal;font-display:swap}@font-face{font-family:Material Symbols Outlined;src:url(/fonts/material-symbols-outlined.woff2) format("woff2");font-weight:400;font-style:normal;font-display:block}@font-face{font-family:Material Symbols Outlined Fill;src:url(/fonts/material-symbols-outlined-fill.woff2) format("woff2");font-weight:400;font-style:normal;font-display:block}@font-face{font-family:"Material Symbols Outlined 200";src:url(/fonts/material-symbols-outlined-200.woff2) format("woff2");font-weight:200;font-style:normal;font-display:block}.material-symbols-outlined,.material-symbols-outlined-fill,.material-symbols-outlined-200{font-weight:400;font-style:normal;line-height:1;letter-spacing:normal;text-transform:none;display:inline-flex;white-space:nowrap;word-wrap:normal;direction:ltr;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-feature-settings:"liga";flex-shrink:0}.material-symbols-outlined{font-family:Material Symbols Outlined}.material-symbols-outlined-fill{font-family:Material Symbols Outlined Fill}.material-symbols-outlined-200{font-family:"Material Symbols Outlined 200"}:root{--light-50: #FBFAF8;--light-100: #FBF6F1;--light-200: #F7F0E8;--light-300: #F3EADB;--light-400: #E5DCCA;--light-500: #E0D6C3;--light-600: #D6CBB7;--light-700: #C9BEA9;--light-800: #C1B39A;--light-900: #B8A98E;--dark-50: #595650;--dark-100: #524E47;--dark-200: #4D4840;--dark-300: #4A453D;--dark-400: #474238;--dark-500: #403B32;--dark-600: #3B362E;--dark-700: #332F29;--dark-800: #2B2823;--dark-900: #24221E;--orange-200: #FF6F21;--orange-300: #FF6221;--orange-400: #FF560F;--orange-500: #FF4B00;--orange-600: #FF3700;--orange-700: #FF2200;--orange-800: #FF0900;--bg-main: var(--light-300);--bg-canvas: var(--light-200);--bg-popup: var(--light-300);--text-primary: var(--dark-400);--text-secondary: var(--light-900);--text-reverse: var(--light-50);--text-color-highlight: var(--orange-500);--button-primary: var(--orange-500);--button-primary-hover: var(--orange-400);--button-secondary: var(--light-500);--button-secondary-hover: var(--light-400);--button-text: var(--light-900);--button-text-hover: var(--light-700);--segmented-active: var(--light-500);--segmented-hover: var(--light-400);--line: var(--light-600);--slider-active: var(--light-600);--slider-inactive: var(--light-400);--slider-control-dot: var(--orange-500);--menu-hover: var(--light-400);--menu-press: var(--light-500);--input-bg: var(--light-400);--dropdown-bg: var(--light-300);--dropdown-hover: var(--light-400);--dropdown-selected: var(--light-500);--dropdown-press: var(--light-300);--template-menu-default: var(--light-300);--template-menu-hover: var(--light-400);--template-menu-press: var(--light-500);--image-upload-hover: var(--light-200);--danger: #FF3E3E;--lightdark-bg: var(--orange-500);--lightdark-dot: var(--light-300);--preset-bg: var(--light-500);--preset-bg-hover: var(--light-400);--preset-bg-selected: var(--light-200);--switch-off: var(--dark-500);--switch-on: var(--orange-500);--switch-thumb: var(--light-300);--nav-button-selected: var(--light-500);--checkerboard-a: var(--light-100);--checkerboard-b: var(--light-400);--bg-panel: var(--bg-main);--text-muted: var(--light-800);--accent: var(--orange-500);--accent-soft: rgba(255, 75, 0, .18);--space-0: 2px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--radius-0: 0px;--radius-2: 2px;--radius-4: 4px;--radius-6: 6px;--radius-8: 8px;--radius-16: 16px;--radius-24: 24px;--radius-32: 32px;--radius-sm: var(--radius-4);--radius-md: var(--radius-8);--radius-lg: var(--radius-16);--radius-full: 999px;--nav-height: 68px;--panel-width: 253px;--timeline-height: 68px;--sidebar-width: var(--panel-width);--sidebar-right-width: var(--panel-width);--preset-tile-width: 106px;--track-height: 4px;--slider-thumb-size: 14px;--icon-button-size: 36px;--asset-thumb-size: 36px;--swatch-size: 18px;--swatch-size-sm: 13px;--control-height: 28px;--curve-stroke: var(--text-primary);--curve-grid: var(--line);--curve-baseline: var(--text-muted);--handle-size: 13px;--handle-fill: var(--button-primary);--handle-border: var(--button-primary);--handle-line: var(--button-primary);--stepper-width: 10px;--stepper-height: 6px;--stepper-color: var(--text-muted);--stepper-color-hover: var(--accent);--value-input-width: 52px;--panel-header-height: 36px;--subsection-header-height: 36px;--caret-size: 20px;--chevron-size: 24px;--list-row-height: 32px;--asset-row-height: 44px;--export-button-width: 104px;--popup-width: 148px;--popup-row-height: 36px;--timemark-width: 2px;--timemark-height: 24px;--shadow-popup: 0 0 6px rgba(0, 0, 0, .15);--icon-size-lg: 24px;--icon-size-md: 20px;--icon-size-sm: 12px;--slider-dot-size: 12px;--number-badge-width: 25px;--row-gap: 24px;--section-title-color: var(--text-primary);--section-desc-color: var(--text-muted);--font-family: "Stack Sans", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, monospace;--font-weight-book: 300;--font-weight-regular: 250;--font-weight-semibold: 450;--text-xxxs: 10px;--text-xxs: 12px;--text-xs: 14px;--text-sm: 16px;--text-base: 18px;--text-lg: 20px;--text-xl: 24px;--text-xxl: 32px;--leading-xxxs: 14px;--leading-xxs: 17px;--leading-xs: 20px;--leading-sm: 22px;--leading-base: 25px;--leading-lg: 28px;--leading-xl: 34px;--leading-xxl: 45px}[data-theme=dark]{--bg-main: var(--dark-800);--bg-canvas: var(--dark-700);--bg-popup: var(--dark-900);--text-primary: var(--light-300);--button-secondary: var(--dark-500);--button-secondary-hover: var(--dark-400);--segmented-active: var(--dark-500);--segmented-hover: var(--dark-400);--line: var(--dark-500);--slider-active: var(--dark-600);--slider-inactive: var(--dark-200);--menu-hover: var(--dark-400);--menu-press: var(--dark-500);--input-bg: var(--dark-500);--dropdown-bg: var(--dark-900);--dropdown-hover: var(--dark-400);--dropdown-selected: var(--dark-500);--dropdown-press: var(--dark-300);--image-upload-hover: var(--dark-200);--template-menu-default: var(--dark-800);--template-menu-hover: var(--dark-400);--template-menu-press: var(--dark-500);--nav-button-selected: var(--dark-500);--text-muted: var(--dark-50);--lightdark-bg: var(--dark-500);--preset-bg: var(--dark-500);--preset-bg-hover: var(--dark-400);--preset-bg-selected: var(--dark-100);--checkerboard-a: var(--dark-600);--checkerboard-b: var(--dark-800)}:root{--motion-micro-duration: .12s;--motion-micro-ease: cubic-bezier(.16, 1, .3, 1);--motion-transition-duration: .22s;--motion-transition-ease: cubic-bezier(.65, 0, .35, 1);--motion-overlay-duration: .12s;--motion-overlay-ease: cubic-bezier(.22, 1, .36, 1);--motion-pill-duration: .18s;--motion-pill-ease: cubic-bezier(.34, 1.28, .64, 1);--motion-reset-duration: .2s;--motion-reset-ease: cubic-bezier(.34, 1.45, .64, 1);--motion-drillin-duration: .24s;--motion-drillin-ease: cubic-bezier(.22, .61, .36, 1);--motion-theme-duration: .25s;--motion-theme-ease: cubic-bezier(.22, 1, .36, 1);--motion-row-duration: .16s;--motion-row-ease: cubic-bezier(.65, 0, .35, 1);--motion-stagger-step: 50ms}@media(prefers-reduced-motion:reduce){:root{--motion-micro-duration: 0ms;--motion-transition-duration: 0ms;--motion-overlay-duration: 0ms;--motion-pill-duration: 0ms;--motion-drillin-duration: 0ms;--motion-row-duration: 0ms}}@keyframes overlay-in{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}@keyframes 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var(--motion-theme-duration) var(--motion-theme-ease),fill var(--motion-theme-duration) var(--motion-theme-ease)}.theme-transitioning .preview-canvas{transition:background-color var(--motion-theme-duration) var(--motion-theme-ease)}.btn-secondary,.btn-primary,.button-text,.segmented button,.template-item,.template-drill-back,.panel-section-label,.control-subsection-title,.control-label,.dropdown-trigger,.dropdown-item,.export-popup-title,.assets-dropzone-hint,.template-list-empty{text-transform:lowercase}.btn-secondary,.btn-primary,.template-item,.template-drill-back,.preset-tile-thumb,.asset-remove,.icon-button,.dropdown-item,.segmented button{transition:background-color var(--motion-micro-duration) var(--motion-micro-ease)}.btn-secondary{height:var(--icon-button-size);padding:0 var(--space-4);border:none;border-radius:var(--radius-md);background:var(--button-secondary);color:var(--text-primary);font-size:var(--text-sm);font-weight:var(--font-weight-regular);cursor:pointer}.btn-secondary:hover{background:var(--button-secondary-hover)}.button-text{padding:0;border:none;background:transparent;color:var(--button-text);font-family:inherit;font-size:var(--text-xxs);font-weight:var(--font-weight-book);text-decoration:none;cursor:pointer;transition:color var(--motion-micro-duration) var(--motion-micro-ease)}.button-text:hover{color:var(--button-text-hover)}.btn-secondary:disabled{opacity:.4;cursor:default;pointer-events:none}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-1);height:var(--icon-button-size);padding:var(--space-2) var(--space-4) var(--space-2) var(--space-3);border:none;border-radius:var(--radius-md);background:var(--button-primary);color:var(--text-reverse);font-size:var(--text-sm);font-weight:var(--font-weight-regular);cursor:pointer}.btn-primary:hover{background:var(--button-primary-hover)}.panel-title{margin:0 0 var(--space-3);font-size:var(--text-xxs);font-weight:var(--font-weight-semibold);letter-spacing:.08em;text-transform:uppercase;color:var(--text-secondary)}.app-shell{display:flex;flex-direction:column;height:100%}.app-body{position:relative;flex:1;min-height:0;display:grid;grid-template-columns:var(--left-panel-width, var(--panel-width)) 1fr var(--interactive-panel-width, 0px) var(--panel-width);transition:grid-template-columns var(--motion-transition-duration) var(--motion-transition-ease)}.nav-bar{position:relative;height:var(--nav-height);flex-shrink:0;display:flex;align-items:center;justify-content:space-between;background:var(--bg-main);border-bottom:1px solid var(--line);padding-left:var(--space-4)}.nav-logo-group{display:flex;align-items:center;gap:var(--space-2)}.nav-logomark{height:36px;width:auto;display:block;overflow:visible}.nav-wordmark{display:block;color:var(--text-primary)}.nav-actions{display:flex;align-items:center;gap:var(--space-2);padding-right:var(--space-4)}.nav-feedback{display:inline-flex;align-items:center;text-decoration:none}.nav-interactive-button{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:inline-flex;align-items:center;gap:var(--space-0);padding:var(--space-2) var(--space-1);border:none;border-radius:var(--radius-md);background:var(--template-menu-default);color:var(--text-primary);font-size:var(--text-xxs);font-weight:var(--font-weight-regular);cursor:pointer}.nav-interactive-button:hover:not(.open){background:var(--template-menu-hover)}.nav-interactive-button:active:not(.open){background:var(--template-menu-press)}.nav-interactive-button.open{background:var(--nav-button-selected)}.nav-interactive-status-dot{color:var(--button-primary)}.theme-toggle{position:relative;flex-shrink:0;width:48px;height:24px;padding:0;border:none;border-radius:var(--radius-full);background:var(--lightdark-bg);cursor:pointer;transition:background var(--motion-micro-duration) var(--motion-micro-ease)}.theme-toggle-icon{position:absolute;top:var(--space-1);width:16px;height:16px}.theme-toggle-icon-sun{left:var(--space-1);color:var(--text-reverse)}.theme-toggle-icon-moon{right:var(--space-1);color:var(--light-300)}.theme-toggle-thumb{position:absolute;top:var(--space-1);left:28px;width:16px;height:16px;border-radius:var(--radius-full);background:var(--lightdark-dot);transition:left var(--motion-micro-duration) var(--motion-micro-ease)}.theme-toggle.dark .theme-toggle-thumb{left:var(--space-1)}.bool-toggle{position:relative;flex-shrink:0;width:32px;height:17px;padding:0;border:none;border-radius:var(--radius-full);background:var(--switch-off);cursor:pointer;transition:background var(--motion-micro-duration) var(--motion-micro-ease)}.bool-toggle.checked{background:var(--switch-on)}.bool-toggle-thumb{position:absolute;top:2px;left:2px;width:13px;height:13px;border-radius:var(--radius-full);background:var(--switch-thumb);transition:left var(--motion-micro-duration) var(--motion-micro-ease)}.bool-toggle.checked .bool-toggle-thumb{left:17px}.left-panel{background:var(--bg-main);border-right:1px solid var(--line);overflow-y:auto;display:flex;flex-direction:column}.panel-resizer{position:absolute;top:0;left:calc(var(--left-panel-width, var(--panel-width)) - 4px);width:8px;height:100%;cursor:col-resize;z-index:1}.panel-edge-divider{height:1px;flex-shrink:0;background:var(--line)}.right-panel-footer{flex-shrink:0;height:var(--timeline-height);border-top:1px solid var(--line);background:var(--bg-main);display:flex;align-items:center;padding:0 var(--space-4)}.reset-bar-button{width:100%;display:flex;align-items:center;justify-content:center}.template-section{display:flex;flex-direction:column;flex:1;gap:var(--space-5);padding:var(--space-4)}.template-tabs{height:var(--list-row-height)}.template-tabs 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var(--space-2);border:none;border-radius:var(--radius-md);background:transparent;color:var(--text-primary);font-family:var(--font-family);font-weight:var(--font-weight-book);font-size:var(--text-xs);text-align:left;cursor:pointer}.template-drill-back:hover{background:var(--template-menu-hover)}.template-drill-back>svg,.template-drill-back .material-symbols-outlined{color:var(--text-secondary)}.preset-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(var(--preset-tile-width),1fr));gap:var(--space-2);margin-top:var(--space-2)}.preset-tile{display:flex;flex-direction:column;align-items:center;gap:var(--space-1);padding:0;border:none;background:none;cursor:pointer}.preset-tile-thumb{position:relative;width:100%;height:134px;overflow:hidden;border-radius:var(--radius-md);background:var(--preset-bg)}.preset-tile:hover:not(.selected) .preset-tile-thumb{background:var(--preset-bg-hover)}.preset-tile.selected .preset-tile-thumb{background:var(--preset-bg-selected)}.preset-tile-stage{position:absolute;top:50%;left:50%;width:1080px;height:1080px;transform:translate(-50%,-50%) 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.custom-card-actions,.custom-card-actions--revealed{opacity:1;pointer-events:auto}.custom-card-action-btn{width:24px;height:24px;display:flex;align-items:center;justify-content:center;border:none;border-radius:var(--radius-sm);background:var(--bg-popup);color:var(--text-secondary);font-size:var(--text-xxs);line-height:1;cursor:pointer}.custom-card-action-btn:hover{background:var(--button-secondary-hover)}.custom-card--renaming .preset-tile-name{visibility:hidden}.custom-card-rename-input{position:absolute;top:calc(134px + var(--space-1));left:0;right:0;width:100%;font-family:var(--font-family);font-size:var(--text-xs);line-height:var(--leading-xs);color:var(--text-primary);text-align:center;background:var(--bg-popup);border:1px solid var(--line);border-radius:var(--radius-sm);padding:0}.custom-card-confirm{display:flex;align-items:center;gap:var(--space-1);background:var(--bg-popup);border-radius:var(--radius-sm);padding:0 var(--space-1)}.custom-card-confirm-label{font-size:var(--text-xxxs);color:var(--text-secondary);white-space:nowrap}.custom-error{margin:0 0 var(--space-2);font-size:var(--text-xxs);color:var(--danger)}.assets-panel{display:flex;flex-direction:column;gap:var(--space-2);min-height:0}.assets-dropzone{display:flex;flex-direction:column;align-items:center;gap:var(--space-4);padding:var(--space-4) 0;border:1px dashed var(--line);border-radius:var(--radius-md);transition:border-color var(--motion-micro-duration) var(--motion-micro-ease),background-color var(--motion-micro-duration) var(--motion-micro-ease)}.assets-dropzone.drag-active{border-color:var(--accent);border-style:solid;background:var(--accent-soft)}.assets-dropzone-hint{margin:0;font-size:var(--text-xs);font-weight:var(--font-weight-book);color:var(--text-secondary);text-align:center;line-height:1.4}.browse-button{width:fit-content;align-self:center}.asset-error{margin:var(--space-2) 0 0;font-size:var(--text-xxs);color:var(--danger);text-align:center}.asset-toast{margin:var(--space-2) 0 0;font-size:var(--text-xxs);color:var(--text-secondary);text-align:center;animation:overlay-in var(--motion-overlay-duration) var(--motion-overlay-ease) both;transition:opacity var(--motion-transition-duration) var(--motion-transition-ease)}.asset-toast.exiting{opacity:0}.assets-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;max-height:calc((100vh - var(--nav-height)) / 2);overflow-y:auto}.asset-row{position:relative;display:flex;align-items:center;gap:var(--space-2);height:var(--asset-row-height);padding:var(--space-1);margin-bottom:var(--space-2);box-sizing:border-box;border-radius:var(--radius-md);cursor:grab;touch-action:none;overflow:hidden;transition:transform var(--motion-micro-duration) var(--motion-micro-ease),background-color var(--motion-micro-duration) var(--motion-micro-ease),height var(--motion-row-duration) var(--motion-row-ease),margin-bottom var(--motion-row-duration) var(--motion-row-ease),padding-top var(--motion-row-duration) var(--motion-row-ease),padding-bottom var(--motion-row-duration) var(--motion-row-ease),opacity var(--motion-row-duration) var(--motion-row-ease);animation:row-in var(--motion-row-duration) var(--motion-row-ease) both;animation-delay:calc(var(--row-stagger-index, 0) * var(--motion-stagger-step))}.asset-row:last-child{margin-bottom:0}.asset-row.exiting{height:0;margin-bottom:0;padding-top:0;padding-bottom:0;opacity:0;pointer-events:none}.asset-row:hover{background:var(--image-upload-hover)}.asset-row.dragging{cursor:grabbing;background:var(--image-upload-hover);box-shadow:var(--shadow-popup);transform:scale(1.02);z-index:5}.asset-index{width:12px;font-size:var(--text-xxs);font-family:var(--font-family);font-weight:var(--font-weight-book);color:var(--text-secondary);flex-shrink:0}.asset-thumb{width:var(--asset-thumb-size);height:var(--asset-thumb-size);object-fit:cover;border-radius:var(--radius-md);background:var(--button-secondary);flex-shrink:0}.asset-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:var(--text-xxs);font-weight:var(--font-weight-book);color:var(--text-secondary)}.asset-remove{width:24px;height:24px;display:flex;align-items:center;justify-content:center;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);cursor:pointer;flex-shrink:0}.asset-remove:hover{background:var(--button-secondary-hover)}.asset-remove:active{background:transparent}.center-column{display:grid;grid-template-rows:1fr var(--timeline-height);min-width:0;min-height:0}.canvas-area{background:var(--bg-main);min-width:0;min-height:0;display:flex}.preview-container{flex:1;display:flex;align-items:center;justify-content:center;min-width:0;min-height:0;overflow:hidden}.preview-canvas{flex-shrink:0;background:var(--bg-canvas);overflow:hidden;position:relative}.preview-canvas--framed{border-radius:24px}.preview-canvas--checkerboard{background-image:linear-gradient(45deg,var(--checkerboard-b) 25%,transparent 25%),linear-gradient(-45deg,var(--checkerboard-b) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,var(--checkerboard-b) 75%),linear-gradient(-45deg,transparent 75%,var(--checkerboard-b) 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0px;background-color:var(--checkerboard-a)}.tpl-scene{position:absolute;top:0;right:0;bottom:0;left:0}.tpl-offset,.tpl-group{position:absolute;top:0;right:0;bottom:0;left:0;transform-style:preserve-3d}.tpl-card{position:absolute;left:50%;top:50%;overflow:hidden;will-change:transform,opacity}.tpl-card img{width:100%;height:100%;object-fit:cover;object-position:center;display:block;-webkit-user-select:none;user-select:none}.timeline-bar{position:relative;height:var(--timeline-height);border-top:1px solid var(--line);background:var(--bg-main);display:flex;align-items:center;gap:var(--space-4);padding:0 var(--space-4)}.icon-button{width:var(--icon-button-size);height:var(--icon-button-size);flex-shrink:0;display:flex;align-items:center;justify-content:center;border:none;border-radius:var(--radius-md);background:var(--button-secondary);color:var(--text-primary);cursor:pointer}.icon-button:hover{background:var(--button-secondary-hover)}.time-display{font-family:var(--font-family);font-weight:var(--font-weight-regular);font-size:var(--text-xs);flex-shrink:0;white-space:nowrap}.time-current{color:var(--text-primary)}.time-sep,.time-total{color:var(--text-secondary)}.progress-bar{position:relative;flex:1;padding:var(--space-3) 0;cursor:pointer;touch-action:none}.progress-track{height:var(--track-height);border-radius:var(--radius-full);background:var(--slider-inactive);overflow:hidden}.progress-fill{height:100%;width:0%;background:var(--slider-active);border-radius:var(--radius-full)}.progress-mark{position:absolute;top:50%;left:0%;width:var(--timemark-width);height:var(--timemark-height);background:var(--slider-active);transform:translate(-50%,-50%);pointer-events:none}.progress-bubble{position:absolute;bottom:100%;left:0%;margin-bottom:var(--space-2);transform:translate(-50%);padding:2px var(--space-2);border-radius:var(--radius-sm);background:var(--slider-active);color:var(--text-primary);font-family:var(--font-family);font-weight:var(--font-weight-book);font-size:var(--text-xxxs);letter-spacing:.6px;white-space:nowrap;pointer-events:none}.timeline-actions{display:flex;align-items:center;gap:var(--space-2);flex-shrink:0;margin-left:auto}.import-error{position:absolute;bottom:100%;right:var(--space-4);margin-bottom:var(--space-2);font-size:var(--text-xxs);color:var(--danger)}.export-menu{position:relative}.export-button{width:var(--export-button-width)}.export-popup{position:absolute;bottom:calc(100% + var(--space-2));right:0;width:var(--popup-width);background:var(--bg-popup);border-radius:var(--radius-md);padding:var(--space-2);display:flex;flex-direction:column;gap:var(--space-2);box-shadow:var(--shadow-popup);z-index:10;transform-origin:bottom right;animation:overlay-in var(--motion-overlay-duration) var(--motion-overlay-ease) both}.export-popup-title{margin:0;font-size:var(--text-xs);font-weight:var(--font-weight-semibold);color:var(--text-primary)}.export-popup-item{width:100%}.export-popup-hint{margin:0;font-size:var(--text-xxs);color:var(--text-secondary);text-align:center}.interactive-panel-slot{min-width:0;overflow:hidden}.interactive-panel{width:var(--panel-width);height:100%;overflow-y:auto;overflow-x:hidden;background:var(--bg-main);border-left:1px solid var(--line);display:flex;flex-direction:column;flex-shrink:0}.interactive-panel-header{height:calc(var(--panel-header-height) + var(--space-2));flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:var(--space-2) var(--space-4) 0}.interactive-panel-title{font-size:var(--text-xs);color:var(--text-secondary)}.interactive-panel-collapse{display:inline-flex;padding:0;border:none;background:transparent;color:var(--text-primary);cursor:pointer}.interactive-panel-body{display:flex;flex-direction:column;padding:0 var(--space-4) var(--space-4)}.interactive-block{display:flex;flex-direction:column;gap:var(--space-3);padding:calc(var(--space-4) + var(--space-2)) 0 var(--space-4) 0}.interactive-row{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2)}.interactive-block-title{font-size:var(--text-xs);font-weight:var(--font-weight-semibold);color:var(--text-primary)}.interactive-field-label{font-size:var(--text-xs);font-weight:var(--font-weight-regular);color:var(--text-primary)}.interactive-divider{height:1px;background:var(--line)}.right-panel{background:var(--bg-main);border-left:1px solid var(--line);display:flex;flex-direction:column;min-height:0;overflow:hidden}.right-panel-scroll{flex:1;min-height:0;overflow-y:auto}.panel-section{border-bottom:1px solid var(--line)}.panel-section:last-child{border-bottom:none}.panel-section-header{width:100%;height:var(--panel-header-height);display:flex;align-items:center;gap:var(--space-1);padding:0 var(--space-4);color:var(--text-secondary)}.right-panel .panel-section-header{height:calc(var(--panel-header-height) + var(--space-2));padding-top:var(--space-2)}.panel-section-toggle{flex:1;min-width:0;height:100%;display:flex;align-items:center;padding:0;border:none;background:transparent;color:inherit;font:inherit;text-align:left;cursor:pointer}.panel-section-chevron{flex:none;display:flex;align-items:center;justify-content:center;padding:0;border:none;background:transparent;color:inherit;cursor:pointer}.panel-section-header .material-symbols-outlined{color:var(--text-secondary)}.panel-section-label{font-size:var(--text-xs);font-weight:var(--font-weight-regular);color:var(--text-secondary)}.panel-section-content{padding:0 var(--space-4) var(--space-4);display:flex;flex-direction:column;gap:var(--space-3)}.left-panel .panel-section-content{padding-top:var(--space-2)}.canvas-settings{display:flex;flex-direction:column;gap:var(--space-3);padding-top:var(--space-2)}.control-panel{display:flex;flex-direction:column}.control-subsection{border-bottom:1px solid var(--line)}.control-subsection:last-child{border-bottom:none}.control-subsection-header{width:100%;height:calc(var(--subsection-header-height) + var(--space-2));display:flex;align-items:center;gap:var(--space-1);padding:var(--space-2) 0 0 0;border:none;background:transparent;color:var(--text-primary);cursor:pointer}.control-subsection-header .material-symbols-outlined{color:var(--text-primary)}.control-subsection-title{font-size:var(--text-xs);font-weight:var(--font-weight-semibold);color:var(--text-primary)}.control-subsection-content{padding:var(--space-2) 0 var(--space-4) 0;display:flex;flex-direction:column;gap:var(--row-gap)}.collapsible{display:grid;grid-template-rows:1fr;opacity:1;transition:grid-template-rows var(--motion-transition-duration) var(--motion-transition-ease),opacity var(--motion-transition-duration) var(--motion-transition-ease)}.rotatable-caret{transition:transform var(--motion-transition-duration) var(--motion-transition-ease)}.rotatable-caret.expanded{transform:rotate(180deg)}.collapsible.collapsed{grid-template-rows:0fr;opacity:0}.collapsible-inner{overflow:hidden;min-height:0}.control-row{display:flex;flex-direction:column;gap:var(--space-2)}.control-label-row{display:flex;justify-content:space-between;align-items:center;gap:var(--space-2)}.control-label-row-actions{display:flex;align-items:center;gap:var(--space-2)}.btn-transparent-toggle{display:inline-flex;padding:0;border:none;background:transparent;color:var(--button-text);cursor:pointer;transition:color var(--motion-micro-duration) var(--motion-micro-ease)}.btn-transparent-toggle:hover{color:var(--button-text-hover)}.btn-transparent-toggle.active{color:var(--button-primary)}.control-label{display:inline-flex;align-items:center;gap:var(--space-1);font-size:var(--text-xs);font-weight:var(--font-weight-book);color:var(--text-primary)}.param-dirty-indicator{flex:none;width:12px;height:12px;display:grid;padding:0;border:none;background:none;cursor:pointer}.param-dirty-indicator-dot,.param-dirty-indicator-refresh{grid-area:1 / 1;width:12px;height:12px;font-size:12px;color:var(--button-primary);transition:opacity var(--motion-micro-duration) var(--motion-micro-ease)}.param-dirty-indicator-refresh,.param-dirty-indicator:hover .param-dirty-indicator-dot{opacity:0}.param-dirty-indicator:hover .param-dirty-indicator-refresh{opacity:1}.control-section-desc{margin:0 0 var(--space-2);font-size:var(--text-xxs);color:var(--section-desc-color);line-height:1.4}.slider-track{position:relative;height:var(--slider-dot-size);display:flex;align-items:center;cursor:pointer;touch-action:none}.slider-track-inactive{position:absolute;left:0;right:0;height:var(--track-height);border-radius:var(--radius-full);background:var(--slider-inactive)}.slider-track-fill{position:absolute;left:0;height:var(--track-height);width:calc((100% - var(--slider-dot-size)) * var(--p) + var(--slider-dot-size) / 2);border-radius:var(--radius-full);background:var(--slider-active)}.slider-track-dot{position:absolute;top:50%;left:calc((100% - var(--slider-dot-size)) * var(--p) + var(--slider-dot-size) / 2);width:var(--slider-dot-size);height:var(--slider-dot-size);border-radius:var(--radius-full);background:var(--slider-control-dot);transform:translate(-50%,-50%);pointer-events:none}.input-number{display:inline-flex;align-items:center;gap:var(--space-1);color:var(--text-secondary)}.input-number-badge{box-sizing:border-box;width:var(--number-badge-width);padding:2px var(--space-1);border:1px solid transparent;border-radius:var(--radius-sm);background:var(--input-bg);color:var(--text-primary);font-family:var(--font-family);font-weight:var(--font-weight-book);font-size:var(--text-xxxs);text-align:center;cursor:pointer}.input-number-editing{border-color:var(--button-primary);outline:none;cursor:text}.input-number-steppers{position:relative;width:var(--icon-size-sm);height:var(--icon-size-sm);flex-shrink:0;opacity:0;transition:opacity var(--motion-micro-duration) var(--motion-micro-ease)}.input-number:hover .input-number-steppers{opacity:1}.input-number-steppers .material-symbols-outlined{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}.input-number-stepper{position:absolute;left:0;right:0;height:50%;padding:0;border:none;background:transparent;cursor:pointer}.input-number-stepper.stepper-up{top:0}.input-number-stepper.stepper-down{bottom:0}.dropdown{position:relative;width:100%}.dropdown-trigger{width:100%;height:var(--icon-button-size);display:flex;align-items:center;justify-content:space-between;padding:var(--space-1) var(--space-2) var(--space-1) var(--space-3);border:none;border-radius:var(--radius-md);background:var(--button-secondary);color:var(--text-primary);font-size:var(--text-xs);font-weight:var(--font-weight-regular);cursor:pointer}.dropdown-menu{display:flex;flex-direction:column;gap:var(--space-1);padding:var(--space-2);background:var(--bg-popup);border-radius:var(--radius-md);box-shadow:var(--shadow-popup);z-index:10;transform-origin:top left;animation:overlay-in var(--motion-overlay-duration) var(--motion-overlay-ease) both}.dropdown-menu--portal{position:fixed}.dropdown-item{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);width:100%;padding:var(--space-1) var(--space-2);border:none;border-radius:var(--radius-sm);background:var(--dropdown-bg);color:var(--text-primary);font-size:var(--text-xs);font-weight:var(--font-weight-regular);text-align:left;cursor:pointer}.dropdown-item.selected{background:var(--dropdown-selected)}.dropdown-item:hover:not(.selected){background:var(--dropdown-hover)}.ease-thumbnail{width:28px;height:16px;flex-shrink:0;overflow:hidden}.ease-thumbnail polyline{fill:none;stroke:var(--text-secondary);stroke-width:1;vector-effect:non-scaling-stroke}.dropdown-item:hover .ease-thumbnail polyline,.dropdown-item.selected .ease-thumbnail polyline{stroke:var(--text-primary)}.ease-trigger-value{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ease-menu .ease-curve-wrap{margin-top:0}.ease-numbers{display:flex;gap:var(--space-1);width:100%}.ease-number{flex:1;min-width:0;padding:var(--space-1);border:none;border-radius:var(--radius-sm);background:var(--input-bg);color:var(--text-primary);font-family:inherit;font-size:var(--text-xxxs);font-weight:var(--font-weight-regular);text-align:center}.ease-curve-wrap{position:relative;margin-top:var(--space-2);aspect-ratio:1 / 1}.ease-curve{display:block;width:100%;height:100%;background:var(--bg-canvas);border-radius:8px}.curve-handle{position:absolute;width:var(--handle-size);height:var(--handle-size);margin:calc(var(--handle-size) / -2) 0 0 calc(var(--handle-size) / -2);border-radius:var(--radius-full);background:var(--handle-fill);border:1px solid var(--handle-border);cursor:grab;touch-action:none}.curve-handle:active{cursor:grabbing}.ease-curve .curve-handle-line{stroke:var(--handle-line);stroke-width:1;vector-effect:non-scaling-stroke}.ease-curve .curve-grid{stroke:var(--curve-grid);stroke-width:1;vector-effect:non-scaling-stroke}.ease-curve .curve-baseline{stroke:var(--curve-baseline);stroke-width:1;stroke-dasharray:3 3;opacity:.5;vector-effect:non-scaling-stroke}.ease-curve .curve-line{stroke:var(--curve-stroke);stroke-width:1;fill:none;vector-effect:non-scaling-stroke}.color-row{display:flex;align-items:center;gap:var(--space-2);height:var(--icon-button-size);padding:0 var(--space-2);border:1px solid var(--line);border-radius:var(--radius-md)}.color-swatch{width:var(--swatch-size);height:var(--swatch-size);padding:0;border:none;border-radius:var(--radius-sm);background:transparent;cursor:pointer;flex-shrink:0}.color-swatch::-webkit-color-swatch-wrapper{padding:0}.color-swatch::-webkit-color-swatch{background-color:var(--swatch-color);border:none;border-radius:calc(var(--radius-sm) - 1px)}.theme-transitioning .color-swatch::-webkit-color-swatch{transition:background-color var(--motion-theme-duration) var(--motion-theme-ease)}.color-hex-input{flex:1;height:100%;padding:0;border:none;background:transparent;color:var(--text-primary);font-family:var(--font-family);font-weight:var(--font-weight-regular);font-size:var(--text-xs);text-transform:uppercase}.color-swatch--sm{width:var(--swatch-size-sm);height:var(--swatch-size-sm)}.color-row--sm{height:auto;padding:var(--space-1);background:var(--input-bg);border:none}.color-row--sm .color-hex-input{font-size:var(--text-xxxs)}.control-label-small{font-size:var(--text-xxs);font-weight:var(--font-weight-regular);color:var(--text-secondary)}.bg-number-input{box-sizing:border-box;width:100%;padding:var(--space-1);border:1px solid transparent;border-radius:var(--radius-sm);background:var(--input-bg);color:var(--text-primary);font-family:var(--font-family);font-weight:var(--font-weight-book);font-size:var(--text-xxxs);text-align:left}.bg-number-input:focus{border-color:var(--button-primary);outline:none}.gradient-stops{display:flex;flex-direction:column;gap:var(--space-1);width:100%}.gradient-stop-row{display:flex;align-items:center;gap:var(--space-1);width:100%}.gradient-stop-pos{width:35px;flex-shrink:0}.gradient-stop-row .color-row--sm{flex:1;min-width:0}.gradient-stop-add,.gradient-stop-remove{display:flex;align-items:center;justify-content:center;width:16px;height:16px;flex-shrink:0;padding:0;border:none;background:none;color:var(--text-secondary);cursor:pointer}.gradient-stop-add:hover,.gradient-stop-remove:hover:not(:disabled){color:var(--text-primary)}.gradient-stop-add:disabled,.gradient-stop-remove:disabled{opacity:.4;cursor:default}.gradient-field-group{display:flex;flex-direction:column;gap:var(--space-1);width:100%}.gradient-field-solo{width:82px}.gradient-center-row{display:flex;gap:var(--space-2);width:100%}.gradient-axis-field{display:flex;align-items:center;gap:var(--space-1);flex:1;min-width:0}.gradient-axis-label{flex-shrink:0;font-size:var(--text-xxxs);font-weight:var(--font-weight-book);color:var(--text-primary)}.background-image-fields{width:100%}.background-image-row{cursor:default;touch-action:auto}.segmented{position:relative;display:flex;gap:var(--space-1);height:var(--icon-button-size);padding:var(--space-0);border:1px solid var(--line);border-radius:var(--radius-md)}.segmented-indicator{position:absolute;top:var(--space-0);bottom:var(--space-0);left:0;z-index:0;border-radius:var(--radius-sm);background:var(--segmented-active);pointer-events:none}.segmented button{position:relative;z-index:1;flex:1;min-width:0;display:flex;align-items:center;justify-content:center;padding:var(--space-2) var(--space-4);border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font-family:inherit;font-weight:var(--font-weight-regular);font-size:var(--text-xs);line-height:1;cursor:pointer;transition:color var(--motion-micro-duration) var(--motion-micro-ease)}.segmented button:hover:not(.active),.segmented button:active:not(.active){color:var(--text-primary)}.segmented button.active{color:var(--text-primary)}.segmented.segmented--sm{height:24px;flex:none}.segmented.segmented--sm button{padding:0;border-radius:var(--radius-6);font-size:var(--text-xxs);line-height:var(--leading-xs)}.segmented.segmented--sm .segmented-indicator{border-radius:var(--radius-6)}.scene-view-toggle{width:106px}.mobile-gate{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-5);padding:var(--space-6) var(--space-4);background:var(--bg-main);text-align:center}.mobile-gate-logo{display:flex;align-items:center;gap:var(--space-2)}.mobile-gate-tagline{margin:0;max-width:320px;font-size:var(--text-sm);font-weight:var(--font-weight-book);color:var(--text-secondary);line-height:1.4}.mobile-gate-demo{width:100%;max-width:320px;aspect-ratio:1 / 1}.mobile-gate-demo-frame{width:100%;height:100%;border:none;pointer-events:none}.mobile-gate-cta{text-decoration:none}.waypoint-board-wrap{display:flex;justify-content:center}.waypoint-board{display:grid;gap:var(--space-0);width:100%;touch-action:none}.waypoint-cell{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;padding:0;min-width:0;min-height:0;border-radius:var(--radius-2);background:var(--slider-inactive);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color var(--motion-micro-duration) var(--motion-micro-ease),color var(--motion-micro-duration) var(--motion-micro-ease)}.waypoint-cell:hover{background:var(--menu-hover)}.waypoint-cell.is-pin{background:var(--slider-control-dot);color:var(--text-reverse)}.waypoint-cell.is-dragging{opacity:.45}.waypoint-cell.is-drop-target{background:var(--accent-soft)}.waypoint-cell-index{font-size:var(--text-xxs);line-height:1;font-weight:var(--font-weight-semibold);pointer-events:none}.mp4-export-status{display:flex;flex-direction:column;gap:var(--space-2)}.mp4-progress-track{position:relative;height:var(--track-height);border-radius:var(--radius-full);background:var(--slider-inactive);overflow:hidden}.mp4-progress-fill{position:absolute;left:0;top:0;bottom:0;width:calc(var(--p, 0) * 100%);background:var(--slider-active);border-radius:var(--radius-full);transition:width var(--motion-micro-duration) var(--motion-micro-ease)}.mp4-progress-label{margin:0;font-size:var(--text-xxs);color:var(--text-secondary);text-align:center;font-variant-numeric:tabular-nums}.mp4-error-message{margin:0;font-size:var(--text-xs);color:var(--danger);text-align:center}