:root{--font-family-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-family-mono: "Roboto Mono", "SF Mono", "Fira Code", "Fira Mono", "Droid Sans Mono", monospace;--border-radius-sm: 4px;--border-radius-md: 6px;--border-radius-lg: 8px;--transition-fast: .15s ease;--transition-normal: .3s ease;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--input-bg: var(--background-primary)}body.dark-theme{--background-primary: #060f1d;--background-secondary: linear-gradient(135deg, #060f1d 0%, #07172c 50%, #0b2642 100%);--background-tertiary: rgba(11, 38, 66, .5);--input-bg: rgba(11, 38, 66, .5);--sidebar-bg: linear-gradient(180deg, rgba(6, 15, 29, .95) 0%, rgba(7, 23, 44, .85) 100%);--text-primary: #ffffff;--text-secondary: rgba(255, 255, 255, .6);--text-tertiary: rgba(255, 255, 255, .4);--border-primary: rgba(77, 184, 255, .15);--border-secondary: rgba(77, 184, 255, .3);--primary-color: #4db8ff;--primary-gradient: linear-gradient(135deg, #4db8ff 0%, #0a85d1 100%);--primary-color-hover: #5ec3ff;--primary-gradient-hover: linear-gradient(135deg, #5ec3ff 0%, #1593e1 100%);--primary-color-text: #ffffff;--secondary-color: rgba(77, 184, 255, .1);--secondary-color-hover: rgba(77, 184, 255, .2);--secondary-color-text: #4db8ff;--error-color: #f28b82;--error-bg: #5c2b29;--indigo-600-50: rgba(77, 184, 255, .3);--indigo-400: #4db8ff;--scrollbar-thumb: rgba(77, 184, 255, .3);--scrollbar-thumb-hover: rgba(77, 184, 255, .6);--scrollbar-track: rgba(6, 15, 29, .8)}body{margin:0;font-family:var(--font-family-sans);background:var(--background-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color var(--transition-fast),color var(--transition-fast);position:relative;min-height:100vh}body.dark-theme:before{content:"";position:fixed;top:-10%;left:-5%;width:50vw;height:50vh;background:radial-gradient(circle,rgba(77,184,255,.03) 0%,transparent 60%);pointer-events:none;z-index:0}h1,h2,h3,h4,h5,h6{margin-top:0;font-weight:600;color:var(--text-primary)}input,select,textarea{font-family:var(--font-family-sans);font-size:14px;background:var(--input-bg, var(--background-primary));color:var(--text-primary);border:1px solid var(--border-primary);border-radius:var(--border-radius-md);padding:10px 12px;width:100%;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}button{font-family:var(--font-family-sans);font-size:14px;font-weight:500;padding:10px 16px;border-radius:var(--border-radius-md);cursor:pointer;border:1px solid transparent;transition:background-color var(--transition-fast),color var(--transition-fast),border-color var(--transition-fast);display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--primary-gradient, var(--primary-color));color:var(--primary-color-text)}button.primary{background:var(--primary-gradient, var(--primary-color));color:var(--primary-color-text)}button:hover{background:var(--primary-gradient-hover, var(--primary-color-hover))}button.icon-button:hover{background:var(--background-tertiary);color:var(--text-primary)}.upload-button-container .upload-progress-bar{position:absolute;top:0;left:0;height:100%;background:var(--primary-gradient-hover, var(--primary-color-hover));transition:width .2s ease-out;z-index:0}body.dark-theme .upload-button-container .upload-progress-bar{background:var(--primary-gradient, var(--primary-color));opacity:.6}.header{display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:64px;flex-shrink:0;border-bottom:1px solid var(--border-primary);background:var(--sidebar-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.studio-nav-btn:hover{background:var(--background-tertiary);color:var(--text-primary)}.studio-nav-btn.active{background:var(--primary-gradient, var(--primary-color));color:var(--primary-color-text)}.studio-nav-btn.active:hover{background:var(--primary-gradient-hover, var(--primary-color-hover))}.theme-toggle:hover{color:var(--text-primary);background:var(--background-tertiary)}.sign-in-btn,.sign-out-btn{background:var(--primary-gradient, var(--primary-color));color:var(--primary-color-text)}.save-confirmation-popup{position:absolute;top:calc(100% + 8px);right:0;background:var(--background-tertiary);color:var(--text-primary);padding:12px 16px;border-radius:var(--border-radius-md);box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:8px;z-index:100;white-space:nowrap}.zoom-popover{position:absolute;top:calc(100% + 8px);right:0;background:var(--background-primary);border:1px solid var(--border-primary);border-radius:var(--border-radius-md);box-shadow:var(--shadow-lg);padding:10px;min-width:220px;z-index:20;display:flex;flex-direction:column;gap:6px}.studio-sidebar{width:280px;flex-shrink:0;border-right:1px solid var(--border-primary);padding:24px;overflow-y:auto;background:var(--sidebar-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.studio-sidebar h2{font-size:18px;margin-bottom:16px}.sidebar-resizer{width:6px;cursor:col-resize;background:var(--background-secondary);border-right:1px solid var(--border-primary);border-left:1px solid var(--border-primary)}.sidebar-resizer:hover{background:var(--primary-gradient-hover, var(--primary-color-hover))}.creation-sidebar-tabs .tab-indicator{position:absolute;bottom:-1px;left:0;height:2px;background:var(--primary-gradient, var(--primary-color));border-radius:2px 2px 0 0;width:0;transform:translate(0);transition:transform var(--transition-fast),width var(--transition-fast);will-change:transform,width}.sidebar-tab-btn:hover{background:var(--background-tertiary);color:var(--text-primary)}.subtitle-control-btn.active{background:var(--background-primary);border-color:var(--border-secondary);color:var(--text-primary)}.subtitle-item:hover{background:var(--background-tertiary)}.subtitle-text-input:focus{box-shadow:none;background:var(--background-tertiary)}.subtitle-option-card:hover{border-color:var(--primary-color);background:var(--background-tertiary)}.subtitle-option-card:first-child{background:var(--background-secondary);position:relative;padding-top:40px}.subtitle-option-card-header{position:absolute;top:8px;right:8px;display:flex;align-items:center;gap:4px;font-size:11px;font-weight:600;color:var(--text-secondary);background:var(--background-tertiary);padding:2px 6px;border-radius:var(--border-radius-sm)}.subtitle-style-item .style-preview{background:var(--background-tertiary);color:var(--text-primary);padding:12px 4px;font-size:11px;font-weight:700;border-radius:var(--border-radius-sm);margin-bottom:4px}.transitions-item{padding:8px;background:var(--background-tertiary);border-radius:var(--border-radius-md);cursor:pointer;transition:background-color var(--transition-fast);display:flex;flex-direction:column;align-items:center;justify-content:center}.media-asset-card{background:var(--background-tertiary);border-radius:var(--border-radius-sm);overflow:hidden;position:relative;cursor:grab;-webkit-user-select:none;user-select:none}.media-asset-card img,.media-asset-card .media-asset-placeholder{width:100%;height:80px;object-fit:cover;display:flex;align-items:center;justify-content:center;background:var(--background-primary)}.project-name-input:focus{background:var(--background-tertiary)}.aspect-ratio-select{background:var(--background-tertiary);border:none;border-radius:var(--border-radius-sm);padding:6px 30px 6px 10px;font-weight:500;color:var(--text-secondary);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23333' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 6px center;background-size:16px 12px}body.dark-theme .aspect-ratio-select{color:var(--text-secondary);background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%239aa0a6' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e")}.zoom-display-btn{display:flex;align-items:center;gap:4px;padding:6px 10px;background:var(--background-tertiary)!important;border-radius:var(--border-radius-sm);color:var(--text-secondary)!important;font-weight:500;border:none!important}.zoom-popover{position:absolute;top:calc(100% + 8px);left:50%;transform:translate(-50%);background:var(--background-primary);border-radius:var(--border-radius-md);box-shadow:var(--shadow-lg);z-index:50;width:150px;padding:8px;display:flex;flex-direction:column;gap:4px;border:1px solid var(--border-primary)}.zoom-popover button:hover{background:var(--background-tertiary)}.preview-area-wrapper{flex:1;display:flex;align-items:center;justify-content:center;padding:16px;background:var(--background-secondary);overflow:hidden;min-height:0}.editor-controls-bar{display:flex;align-items:center;gap:16px;padding:8px 16px;border-top:1px solid var(--border-primary);background:var(--background-primary);flex-shrink:0}.timeline-resizer{height:6px;background:var(--background-secondary);cursor:row-resize;flex-shrink:0;transition:background-color var(--transition-fast)}.timeline-resizer:hover{background:var(--primary-gradient-hover, var(--primary-color-hover))}.timeline-area{flex:1;display:flex;gap:8px;background:var(--background-secondary);border-top:1px solid var(--border-primary);padding:8px;overflow:hidden}.track-header{height:50px;display:flex;align-items:center;justify-content:space-between;font-size:10px;font-weight:500;color:var(--text-tertiary);text-transform:uppercase;background:var(--background-tertiary);border-radius:var(--border-radius-sm);padding:0 8px;cursor:pointer;border:2px solid transparent;transition:border-color var(--transition-fast)}.track-header:hover{background:var(--background-primary)}.track-header-controls .icon-button:hover{color:var(--text-primary);background:var(--background-secondary)}.track-items{position:relative;height:50px;background:var(--background-tertiary);border-radius:var(--border-radius-sm);flex-grow:1;cursor:pointer}.timeline-item{position:absolute;top:5px;height:40px;background:var(--primary-gradient, var(--primary-color));color:var(--primary-color-text);border-radius:var(--border-radius-sm);padding:4px 8px;font-size:12px;overflow:hidden;cursor:grab;border:1px solid var(--primary-color-hover);display:flex;align-items:center;justify-content:space-between;gap:8px;z-index:10}.detach-audio-btn:hover{background:var(--primary-gradient-hover, var(--primary-color-hover))}.debug-log-panel{background:var(--background-tertiary);border-top:1px solid var(--border-primary);font-family:var(--font-family-mono);font-size:12px;transition:max-height var(--transition-normal);flex-shrink:0}.debug-log-header{display:flex;justify-content:space-between;padding:8px 10px;background:var(--background-secondary)}.generator-preview{background:var(--background-secondary);border-radius:var(--border-radius-lg);display:flex;align-items:center;justify-content:center;padding:24px}.switcher-item{border:1px solid var(--border-primary);border-radius:var(--border-radius-md);padding:12px;background:var(--background-tertiary)}.save-confirmation-popup{position:absolute;bottom:calc(100% + 8px);left:50%;background:var(--background-tertiary);color:var(--text-primary);padding:8px 16px;border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);display:flex;align-items:center;gap:8px;font-size:14px;font-weight:500;z-index:100;white-space:nowrap;animation:fadeInOut 2.5s ease-in-out forwards}.creation-sidebar-category-header:hover{background:var(--background-tertiary)}.creation-tool-btn.active{background:var(--primary-gradient, var(--primary-color));color:var(--primary-color-text)}.creation-tool-btn:not(.active):hover{background:var(--background-tertiary)}.transition-handle{position:absolute;top:50%;transform:translate(-50%,-50%);width:24px;height:24px;background:var(--background-primary);border:1px solid var(--border-secondary);border-radius:50%;cursor:pointer;z-index:12;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:all var(--transition-fast)}.transition-handle:hover{background:var(--primary-gradient, var(--primary-color));color:var(--primary-color-text);transform:translate(-50%,-50%) scale(1.1)}.debugbox-body{padding:8px;overflow:auto;max-height:calc(40vh - 38px);font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:12px}.loading-indicator-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#111118d9;display:flex;align-items:center;justify-content:center;z-index:9999;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);opacity:0;animation:fadeIn .3s forwards}.loading-indicator-box{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px;background-color:#1f1f28b3;border-radius:12px;border:1px solid rgba(80,80,92,.5);box-shadow:0 10px 25px #0000004d;text-align:center;max-width:400px}.loading-spinner{width:64px;height:64px;border:5px solid transparent;border-top-color:#6366f1;border-right-color:#6366f1;border-radius:50%;animation:spin 1s linear infinite}.loading-title{font-size:1.75rem;font-weight:600;margin-top:32px;color:#e5e7eb}.loading-message{margin-top:8px;color:#9ca3af;transition:opacity .5s ease-in-out;min-height:40px;display:flex;align-items:center;justify-content:center}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.add-track-container{position:relative}.add-track-menu{position:absolute;bottom:100%;left:0;background-color:var(--background-secondary);border:1px solid var(--border-primary);border-radius:var(--border-radius-md);padding:8px;z-index:10;margin-bottom:8px}.add-track-menu button{display:flex;align-items:center;width:100%;padding:8px 12px;background-color:transparent;border:none;color:var(--text-primary);cursor:pointer}.add-track-menu button:hover{background-color:var(--background-tertiary)}:root{--font-family-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-family-mono: "Roboto Mono", "SF Mono", "Fira Code", "Fira Mono", "Droid Sans Mono", monospace;--border-radius-sm: 4px;--border-radius-md: 6px;--border-radius-lg: 8px;--transition-fast: .15s ease;--transition-normal: .3s ease;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05)}body.light-theme{--background-primary: #ffffff;--background-secondary: #f7f7f8;--background-tertiary: #eff0f1;--sidebar-bg: #ffffff;--text-primary: #1a1a1a;--text-secondary: #5f6368;--text-tertiary: #8f9499;--border-primary: #e0e0e0;--border-secondary: #d1d1d1;--primary-color: #1a73e8;--primary-color-hover: #1864c9;--primary-color-text: #ffffff;--secondary-color: #e8eaed;--secondary-color-hover: #dadce0;--secondary-color-text: #3c4043;--error-color: #d93025;--error-bg: #fce8e6;--indigo-600-50: rgba(79, 70, 229, .5);--indigo-400: #818cf8;--scrollbar-thumb: rgba(95, 99, 104, .35);--scrollbar-thumb-hover: rgba(95, 99, 104, .55);--scrollbar-track: transparent}body.dark-theme{--background-primary: #14151B;--background-secondary: #1E202C;--background-tertiary: #252736;--sidebar-bg: #1E202C;--text-primary: #ffffff;--text-secondary: rgba(255,255,255,.5);--text-tertiary: rgba(255,255,255,.3);--border-primary: rgba(255,255,255,.05);--border-secondary: rgba(255,255,255,.1);--primary-color: #8ab4f8;--primary-color-hover: #a5c8fa;--primary-color-text: #202124;--secondary-color: #3c4043;--secondary-color-hover: #4e5256;--secondary-color-text: #e8eaed;--error-color: #f28b82;--error-bg: #5c2b29;--indigo-600-50: rgba(129, 140, 248, .5);--indigo-400: #818cf8;--scrollbar-thumb: rgba(255, 255, 255, .2);--scrollbar-thumb-hover: rgba(255, 255, 255, .34);--scrollbar-track: transparent}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:var(--font-family-sans);background-color:var(--background-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color var(--transition-fast),color var(--transition-fast)}*{scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) var(--scrollbar-track)}*::-webkit-scrollbar{width:10px;height:10px}*::-webkit-scrollbar-track{background:var(--scrollbar-track)}*::-webkit-scrollbar-thumb{background-color:var(--scrollbar-thumb);border:2px solid transparent;border-radius:999px;background-clip:padding-box}*::-webkit-scrollbar-thumb:hover{background-color:var(--scrollbar-thumb-hover)}*::-webkit-scrollbar-corner{background:transparent}.creation-sidebar,.media-panel-content,.workspace-menu-list,.subtitle-style-scroll,.select-options{scrollbar-width:thin}.creation-sidebar::-webkit-scrollbar,.media-panel-content::-webkit-scrollbar,.workspace-menu-list::-webkit-scrollbar,.subtitle-style-scroll::-webkit-scrollbar,.select-options::-webkit-scrollbar{width:8px;height:8px}.timeline-area,.timeline-toolbar{scrollbar-width:auto}.timeline-area::-webkit-scrollbar,.timeline-toolbar::-webkit-scrollbar{width:12px;height:12px}#root,.app-container{height:100vh;display:flex;flex-direction:column;overflow:hidden}h1,h2,h3,h4,h5,h6{margin:0 0 16px;font-weight:600}h1{font-size:24px}h2{font-size:20px}h3{font-size:18px}h4{font-size:16px}p{margin:0 0 16px;line-height:1.6}pre{font-family:var(--font-family-mono);background-color:var(--background-secondary);padding:16px;border-radius:var(--border-radius-md);white-space:pre-wrap;word-break:break-word;border:1px solid var(--border-primary)}input,select,textarea{font-family:var(--font-family-sans);font-size:14px;background-color:var(--background-primary);color:var(--text-primary);border:1px solid var(--border-primary);border-radius:var(--border-radius-md);padding:10px 12px;width:100%;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px var(--primary-color-hover)}textarea{resize:vertical;min-height:80px}label,.input-label{display:block;font-size:14px;font-weight:500;margin-bottom:8px}button{font-family:var(--font-family-sans);font-size:14px;font-weight:500;padding:10px 16px;border-radius:var(--border-radius-md);cursor:pointer;border:1px solid transparent;transition:background-color var(--transition-fast),color var(--transition-fast),border-color var(--transition-fast);display:inline-flex;align-items:center;justify-content:center;gap:8px;background-color:var(--primary-color);color:var(--primary-color-text)}button.primary{background-color:var(--primary-color);color:var(--primary-color-text)}button:hover{background-color:var(--primary-color-hover)}button:disabled{opacity:.6;cursor:not-allowed}button.secondary{background-color:var(--secondary-color);color:var(--secondary-color-text);border:1px solid var(--border-secondary)}button.secondary:hover{background-color:var(--secondary-color-hover)}button.icon-button{padding:8px;min-width:auto;background-color:transparent;color:var(--text-secondary);border:1px solid transparent}button.icon-button:hover{background-color:var(--background-tertiary);color:var(--text-primary)}.upload-button-container{position:relative;overflow:hidden;transform:translateZ(0)}.upload-button-container .upload-progress-bar{position:absolute;top:0;left:0;height:100%;background-color:var(--primary-color-hover);transition:width .2s ease-out;z-index:0}.upload-button-container>.material-icons,.upload-button-container>.spinner-small,.upload-button-container>span{position:relative;z-index:1}body.dark-theme .upload-button-container .upload-progress-bar{background-color:var(--primary-color);opacity:.6}.header{display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:64px;flex-shrink:0;border-bottom:1px solid var(--border-primary);background-color:var(--sidebar-bg)}.header-left h1{font-size:20px;margin:0}.header-center-nav{display:flex;gap:8px}.studio-nav-btn{background:transparent;color:var(--text-secondary);border:none;padding:8px 16px;border-radius:var(--border-radius-lg)}.studio-nav-btn:hover{background-color:var(--background-tertiary);color:var(--text-primary)}.studio-nav-btn.active{background-color:var(--primary-color);color:var(--primary-color-text)}.studio-nav-btn.active:hover{background-color:var(--primary-color-hover)}.header-right{display:flex;align-items:center;gap:16px}.workspace-credits-card{min-width:190px;padding:8px 10px;border-radius:12px;border:1px solid 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