@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@300;400;500;600&display=swap";@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{--font-sans: "Product Sans", "Outfit", "Inter", system-ui, -apple-system, sans-serif;--color-bg: #f5f5f5;--color-surface: #ffffff;--color-surface-rgb: 255, 255, 255;--color-surface-hover: #e8e8e8;--color-border: #d0d0d0;--color-text-main: #1a1a1a;--color-text-main-rgb: 26, 26, 26;--color-text-muted: #666666;--color-text-dim: #999999;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 2rem;--spacing-xl: 4rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: 1rem;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .25s ease}body.dark-mode{--color-bg: #0a0a0a;--color-surface: #171717;--color-surface-rgb: 23, 23, 23;--color-surface-hover: #262626;--color-border: #2a2a2a;--color-text-main: #ededed;--color-text-main-rgb: 237, 237, 237;--color-text-muted: #a1a1a1;--color-text-dim: #525252}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text-main);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .3s,color .3s}*{scrollbar-width:thin;scrollbar-color:rgba(0,0,0,.28) rgba(0,0,0,.06)}body.dark-mode *{scrollbar-color:rgba(255,255,255,.18) rgba(0,0,0,.35)}*::-webkit-scrollbar{width:10px;height:10px}*::-webkit-scrollbar-track{background:#0000000f}body.dark-mode *::-webkit-scrollbar-track{background:#00000059}*::-webkit-scrollbar-thumb{background:#00000047;border-radius:9999px;border:2px solid rgba(0,0,0,.06)}body.dark-mode *::-webkit-scrollbar-thumb{background:#ffffff29;border:2px solid rgba(0,0,0,.35)}*::-webkit-scrollbar-thumb:hover{background:#00000061}body.dark-mode *::-webkit-scrollbar-thumb:hover{background:#ffffff3d}*::-webkit-scrollbar-corner{background:transparent}.container{max-width:800px;margin:0 auto;padding:0 var(--spacing-md);width:100%}button{border:none;background:none;font-family:inherit;cursor:pointer;color:inherit}input,textarea{border:none;background:none;font-family:inherit;color:inherit;outline:none}#root{width:100%;padding:0;text-align:left}.app-container{display:flex;flex-direction:column;height:100vh;background-color:transparent;overflow:hidden}.header{padding:var(--spacing-md) var(--spacing-lg);display:flex;align-items:center;justify-content:space-between;flex-shrink:0}.logo{font-weight:600;font-size:1.75rem;letter-spacing:-.02em;color:var(--color-text-main)}.dev-mode-toggle{display:flex;align-items:center;gap:8px;font-size:.75rem;color:var(--color-text-main);cursor:pointer;padding:3px 0}.dev-mode-toggle span{order:2}.dev-mode-toggle input{appearance:none;-webkit-appearance:none;width:36px;height:20px;background:var(--color-surface-hover);border-radius:20px;position:relative;cursor:pointer;transition:background .2s;order:1;flex-shrink:0}.dev-mode-toggle input:before{content:"";position:absolute;width:16px;height:16px;border-radius:50%;background:var(--color-text-muted);top:2px;left:2px;transition:transform .2s,background .2s}.dev-mode-toggle input:checked{background:#888}.dev-mode-toggle input:checked:before{transform:translate(16px);background:#fff}.subtitle{font-size:.75rem;color:var(--color-text-muted)}.chat-content{flex:1;overflow-y:auto;padding:var(--spacing-lg) var(--spacing-md);display:flex;flex-direction:column;padding-bottom:4rem}.hero-section{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--color-text-muted);text-align:center}.hero-section .title{font-size:1.25rem;color:var(--color-text-main);margin-bottom:var(--spacing-sm)}.messages-list{max-width:900px;width:100%;margin:0 auto;display:flex;flex-direction:column;gap:var(--spacing-lg)}.message-row{display:flex;width:100%}.message-row.user{justify-content:flex-end}.message-row.assistant{justify-content:flex-start}.message-bubble{max-width:85%;font-size:1rem;line-height:1.5}.user-content{background-color:var(--color-surface);color:var(--color-text-main);padding:var(--spacing-md);border-radius:var(--radius-lg);border-top-right-radius:2px;border:1px solid var(--color-border)}.attachment-badge{display:inline-flex;align-items:center;gap:6px;margin-top:8px;background:#ffffff1a;padding:4px 8px;border-radius:4px;font-size:.8rem;color:var(--color-text-muted)}.attachment-thumbnail{width:40px;height:40px;border-radius:6px;object-fit:cover;flex-shrink:0;border:1px solid var(--color-border)}.context-thumbnail{width:28px;height:28px;border-radius:5px;object-fit:cover;flex-shrink:0;border:1px solid var(--color-border)}.assistant-content{width:100%}.status-indicator{background:var(--color-surface);border:1px solid var(--color-border);padding:var(--spacing-md);border-radius:var(--radius-lg);border-top-left-radius:2px;min-width:300px}.status-text{margin-bottom:8px;color:var(--color-text-muted);font-size:.9rem}.progress-bar-small{width:100%;height:4px;background:#ffffff1a;border-radius:2px;overflow:hidden;margin-top:8px;margin-bottom:8px}.progress-fill{height:100%;background:var(--color-primary);transition:width .3s ease-in-out}.video-result{display:flex;flex-direction:column;gap:12px}.chat-video{width:100%;max-width:320px;border-radius:var(--radius-lg);border:1px solid var(--color-border);background:#000}.download-link{color:var(--color-text-muted);text-decoration:none;font-size:.85rem;display:inline-flex;align-items:center}.download-link:hover{color:var(--color-text-main);text-decoration:underline}.edit-video-btn{background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text-main);padding:6px 12px;border-radius:6px;font-size:.85rem;cursor:pointer;margin-top:8px;width:fit-content;display:flex;align-items:center;gap:6px;transition:all .2s}.edit-video-btn:hover{background:var(--color-surface-hover);border-color:var(--color-text-main)}.edit-row{display:flex;align-items:flex-end;gap:10px;margin-top:8px}.edit-hint{font-size:.75rem;color:var(--color-text-muted);margin-left:8px;font-style:italic}.error-text{color:#ff6b6b;background:#ff6b6b1a;padding:12px;border-radius:8px;border:1px solid rgba(255,107,107,.2)}.input-area-fixed{flex-shrink:0;padding:var(--spacing-lg) var(--spacing-md);padding-bottom:var(--spacing-xl, 2rem);background:transparent;position:relative;z-index:10;transition:margin-left .3s cubic-bezier(.4,0,.2,1);margin-left:0}.input-area-fixed.sidebar-open{margin-left:320px}.warning-text{color:#ffb84d;font-size:.85rem;align-self:center;margin:0 8px 0 0;white-space:nowrap}.input-container{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:var(--spacing-md);position:relative}.settings-row{display:flex;gap:var(--spacing-sm);flex-wrap:wrap;padding-left:4px;margin-bottom:10px;width:100%;box-sizing:border-box;align-items:center;position:relative}.setting-tag{display:flex;align-items:center;gap:6px;background:var(--color-surface);border:1px solid var(--color-border);padding:4px 8px;border-radius:6px;font-size:.8rem;color:var(--color-text-muted);cursor:pointer;transition:border-color var(--transition-fast)}.setting-tag:hover{border-color:var(--color-text-main);color:var(--color-text-main)}.setting-tag select{background:transparent;border:none;color:inherit;font-size:inherit;cursor:pointer;outline:none;font-weight:500}.checkbox-tag input{appearance:none;-webkit-appearance:none;width:16px;height:16px;border:1px solid var(--color-text-muted);border-radius:3px;background-color:transparent;display:grid;place-content:center;cursor:pointer;margin:0}.checkbox-tag input:before{content:"";width:10px;height:10px;transform:scale(0);transition:.12s transform ease-in-out;box-shadow:inset 1em 1em var(--color-text-main);transform-origin:center;clip-path:polygon(14% 44%,0 65%,50% 100%,100% 16%,80% 0%,43% 62%)}.checkbox-tag input:checked:before{transform:scale(1)}.checkbox-tag input:checked{border-color:var(--color-text-main);background-color:transparent}.input-wrapper{display:flex;align-items:flex-end;gap:var(--spacing-sm);background:var(--color-surface);border:1px solid var(--color-border);padding:8px;border-radius:var(--radius-lg);transition:border-color .2s}.input-wrapper:focus-within{border-color:var(--color-text-muted)}.attach-btn{padding:8px;color:var(--color-text-muted);border-radius:6px;display:flex;align-items:center;justify-content:center}.attach-btn:hover,.attach-btn.active{background:#ffffff1a;color:var(--color-text-main)}.chat-input{flex:1;background:transparent;border:none;color:var(--color-text-main);font-size:.95rem;padding:8px 0;max-height:200px;min-height:24px;resize:none;line-height:1.5;overflow-y:auto;field-sizing:content}.chat-input::placeholder{color:var(--color-text-dim)}.send-btn{width:32px;height:32px;background:var(--color-text-main);color:var(--color-bg);border-radius:6px;display:flex;align-items:center;justify-content:center;transition:opacity .2s}.send-btn:disabled{opacity:.3;cursor:default}.send-btn.generating{opacity:1!important;cursor:default;background:var(--color-text-muted)}.enhance-prompt-btn{width:32px;height:32px;background:transparent;border:1px solid var(--color-border);border-radius:6px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:16px;transition:all .2s;flex-shrink:0}.enhance-prompt-btn:hover:not(:disabled){border-color:var(--color-text-muted);background:var(--color-surface-hover)}.enhance-prompt-btn:disabled{opacity:.3;cursor:default}.enhance-prompt-btn.enhancing{opacity:1;animation:sparkle-pulse .8s ease-in-out infinite}@keyframes sparkle-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.15)}}.spinner{animation:spin .8s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.context-bar{display:flex;align-items:center;gap:8px;background:var(--color-surface);border:1px solid var(--color-border);padding:4px 12px;border-radius:6px;font-size:.8rem;width:fit-content;margin-bottom:4px}.context-label{color:var(--color-text-muted)}.context-filename{color:var(--color-text-main);font-weight:500;max-width:200px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.context-clear-btn{background:none;border:none;color:var(--color-text-muted);font-size:1.1rem;line-height:1;padding:0 4px;cursor:pointer}.context-clear-btn:hover{color:#ff6b6b}.status-subtext{color:var(--color-text-muted);font-size:.75rem;margin-bottom:var(--spacing-sm);font-style:italic}.cancel-btn{margin-top:var(--spacing-sm);padding:6px 12px;background:transparent;border:1px solid var(--color-text-muted);color:var(--color-text-muted);border-radius:6px;font-size:.8rem;cursor:pointer;transition:all .2s}.cancel-btn:hover{border-color:#ff6b6b;color:#ff6b6b}.cancelled-text{color:var(--color-text-muted);background:#ffffff0d;padding:12px;border-radius:8px;border:1px solid var(--color-border);font-style:italic}.modal-overlay{position:fixed;inset:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background:var(--color-surface);border:1px solid var(--color-border);padding:30px;border-radius:12px;width:90%;max-width:400px;position:relative;box-shadow:0 20px 50px #00000080}.modal-close{position:absolute;top:15px;right:15px;background:none;border:none;color:var(--color-text-muted);font-size:1.5rem;cursor:pointer;line-height:1}.modal-title{margin-top:0;margin-bottom:20px;text-align:center}.auth-form{display:flex;flex-direction:column;gap:15px}.auth-input{background:#ffffff0d;border:1px solid var(--color-border);padding:12px;border-radius:6px;color:var(--color-text-main);font-size:1rem}.auth-input:focus{border-color:var(--color-text-main);outline:none}.auth-submit-btn{background:var(--color-text-main);color:var(--color-bg);padding:12px;border-radius:6px;font-weight:600;cursor:pointer;margin-top:10px;transition:opacity .2s}.auth-submit-btn:hover{opacity:.9}.auth-submit-btn:disabled{opacity:.5;cursor:not-allowed}.auth-switch{margin-top:20px;text-align:center;font-size:.9rem;color:var(--color-text-muted)}.link-btn{background:none;border:none;color:var(--color-text-main);cursor:pointer;text-decoration:underline;font-size:inherit;padding:0}.settings-menu-container{position:absolute;top:12px;right:12px;z-index:100}.settings-menu-btn{background:transparent;border:none;color:var(--color-text-main);padding:6px;border-radius:8px;cursor:pointer;font-size:1.2rem;line-height:1;transition:all .2s;opacity:.8;display:flex;align-items:center;justify-content:center;width:36px;height:36px}.settings-menu-btn:hover{background:#ffffff14;opacity:1}.login-hint-message{position:absolute;top:48px;right:0;background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text-muted);padding:6px 10px;border-radius:6px;font-size:.7rem;white-space:nowrap;animation:slideDown .3s ease-out;pointer-events:none;z-index:90;box-shadow:0 4px 12px #0003}.login-hint-message:after{content:"";position:absolute;top:-6px;right:12px;width:10px;height:10px;background:var(--color-surface);border-left:1px solid var(--color-border);border-top:1px solid var(--color-border);transform:rotate(45deg)}@keyframes slideDown{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.settings-dropdown{position:absolute;top:100%;right:0;margin-top:6px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:6px;padding:8px 10px;min-width:140px;box-shadow:0 8px 24px #0006;z-index:200;display:flex;flex-direction:column;gap:6px}.user-info{padding-bottom:5px;border-bottom:1px solid var(--color-border);margin-bottom:2px}.user-info .username{font-size:.65rem;color:var(--color-text-main);font-weight:500;word-break:break-all;display:block}.auth-btn,.library-btn{background:var(--color-surface-hover);border:1px solid var(--color-border);color:var(--color-text-main);padding:6px 12px;border-radius:4px;cursor:pointer;font-size:.75rem;transition:all .2s}.auth-btn:hover,.library-btn:hover{background:var(--color-surface)}.logout-btn{background:var(--color-surface-hover);border:1px solid var(--color-border);color:var(--color-text-main);padding:6px 12px;border-radius:4px;cursor:pointer;font-size:.7rem;transition:all .2s;width:100%;margin-top:4px}.logout-btn:hover{background:var(--color-surface)}.video-sidebar{position:fixed;top:0;left:0;bottom:0;width:320px;background:var(--color-surface);border-right:1px solid var(--color-border);z-index:100;transform:translate(-100%);transition:transform .3s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column}.video-sidebar.open{transform:translate(0)}.sidebar-header{padding:20px;border-bottom:1px solid var(--color-border);display:flex;justify-content:space-between;align-items:center}.sidebar-header h3{margin:0;font-size:1.2rem}.sidebar-content{flex:1;overflow-y:auto;padding:15px}.sidebar-grid{display:flex;flex-direction:column;gap:15px}.sidebar-video-card{background:var(--color-bg);border-radius:8px;overflow:hidden;border:1px solid var(--color-border)}.sidebar-video-player{width:100%;background:#000;display:block}.sidebar-video-info{padding:10px}.sidebar-prompt{font-size:.85rem;color:var(--color-text-main);margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.sidebar-date{font-size:.75rem;color:var(--color-text-muted)}.empty-state-sidebar{text-align:center;margin-top:50px;color:var(--color-text-muted);font-size:.9rem}.chat-content{flex:1;overflow-y:auto;padding:var(--spacing-lg) var(--spacing-md);display:flex;flex-direction:column;padding-bottom:4rem;transition:margin-left .3s cubic-bezier(.4,0,.2,1);margin-left:0}.chat-content.sidebar-open{margin-left:320px}.sidebar-toggle-btn{position:fixed;top:50vh;left:10px;background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text-main);padding:40px 1px;width:auto;height:auto;border-radius:8px;display:flex;flex-direction:row;align-items:center;gap:2px;cursor:pointer;z-index:101;box-shadow:0 4px 12px #0000004d;transition:background-color .2s,border-color .2s,left .3s cubic-bezier(.4,0,.2,1);transform:translateY(-50%)}.sidebar-label{font-size:.55rem;font-weight:600;white-space:nowrap;writing-mode:vertical-rl;transform:rotate(180deg);text-transform:uppercase;letter-spacing:.05em;opacity:.7}.sidebar-toggle-btn:hover{background:var(--color-surface-hover);border-color:var(--color-text-muted)}.sidebar-toggle-btn:hover .sidebar-label{opacity:1}.sidebar-toggle-btn svg{width:14px;height:14px}.sidebar-toggle-btn.open{left:320px;transform:translate(-50%,-50%);border-color:var(--color-border)}.sidebar-toggle-btn.open svg{transform:rotate(180deg)}.sidebar-toggle-btn:after{content:attr(title);position:absolute;left:100%;top:50%;transform:translateY(-50%);margin-left:8px;background:var(--color-surface);color:var(--color-text-main);padding:4px 8px;border-radius:4px;font-size:12px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .15s;border:1px solid var(--color-border);box-shadow:0 2px 8px #0003}.sidebar-toggle-btn:hover:after{opacity:1}.editor-toggle-btn{position:fixed;top:50vh;right:17px;background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text-main);padding:40px 1px;width:auto;height:auto;border-radius:8px;display:flex;justify-content:center;align-items:center;cursor:pointer;z-index:101;box-shadow:0 4px 12px #0000004d;transition:right .3s cubic-bezier(.4,0,.2,1),background-color .2s,border-color .2s;transform:translateY(-50%)}.editor-toggle-btn:hover{background:var(--color-surface-hover);border-color:var(--color-text-muted)}.editor-toggle-btn.open{right:50%;transform:translate(50%,-50%);border-color:var(--color-border)}.editor-toggle-btn svg{width:14px;height:14px}.editor-toggle-btn.open svg{transform:rotate(180deg)}.editor-toggle-btn:after{content:attr(title);position:absolute;right:100%;top:50%;transform:translateY(-50%);margin-right:8px;background:var(--color-surface);color:var(--color-text-main);padding:4px 8px;border-radius:4px;font-size:12px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .15s;border:1px solid var(--color-border);box-shadow:0 2px 8px #0003}.editor-toggle-btn:hover:after{opacity:1}.remove-clip-btn{position:absolute;top:-8px;right:-8px;width:18px;height:18px;background:#f44;color:#fff;border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:14px;line-height:1;font-weight:700;opacity:0;transition:opacity .2s,background-color .2s;z-index:10;box-shadow:0 2px 4px #0000004d}.timeline-clip:hover .remove-clip-btn{opacity:1;z-index:9999}.remove-clip-btn:hover{background:#ff2525}.video-sidebar{box-shadow:2px 0 20px #00000080}.price-estimate{text-align:center;font-size:.75rem;color:var(--color-text-muted);padding:6px 0 0;opacity:.7}.price-estimate strong{color:var(--color-text-main);font-weight:600}.upgrade-link-btn{background:#7c3aed1a;border:1px solid rgba(124,58,237,.3);color:#7c3aed;font-size:.72rem;font-weight:600;cursor:pointer;padding:3px 10px;margin-left:8px;border-radius:6px;text-decoration:none;opacity:.9;transition:all .2s}.upgrade-link-btn:hover{opacity:1;background:#7c3aed2e;border-color:#7c3aed80}.chat-history-section{margin-bottom:0}.chat-section-toggle{display:flex;align-items:center;gap:6px;width:100%;background:none;border:none;color:var(--color-text-main);font-size:.85rem;font-weight:600;padding:8px 4px;cursor:pointer;text-align:left;transition:color .2s}.chat-section-toggle:hover{color:var(--color-text-main);opacity:.8}.toggle-arrow{display:inline-block;transition:transform .2s;font-size:.75rem}.toggle-arrow.open{transform:rotate(90deg)}.chat-history-collapsible{max-height:0;opacity:0;overflow:hidden;transition:max-height .3s ease,opacity .25s ease}.chat-history-collapsible.open{max-height:350px;opacity:1;overflow-y:auto}.chat-history-list{display:flex;flex-direction:column;gap:6px;padding:4px 0}.new-chat-btn{background:var(--color-surface-hover);border:1px dashed var(--color-border);color:var(--color-text-muted);padding:8px 12px;border-radius:6px;font-size:.8rem;cursor:pointer;transition:all .2s;text-align:left;margin-bottom:10px}.new-chat-btn:hover{background:var(--color-surface);color:var(--color-text-main);border-style:solid}.chat-history-item{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;border-radius:6px;cursor:pointer;transition:background .15s;gap:8px}.chat-history-item:hover{background:var(--color-surface-hover)}.chat-history-item.active{background:#ffffff14;border:1px solid var(--color-border)}.chat-item-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.chat-item-title{font-size:.8rem;color:var(--color-text-main);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-item-date{font-size:.65rem;color:var(--color-text-muted)}.chat-delete-btn{background:none;border:none;color:var(--color-text-muted);font-size:1.1rem;line-height:1;padding:2px 4px;cursor:pointer;opacity:0;transition:opacity .15s,color .15s;flex-shrink:0}.chat-history-item:hover .chat-delete-btn{opacity:1}.chat-delete-btn:hover{color:#ff6b6b}.sidebar-divider{height:1px;background:var(--color-border);margin:12px 0}.sidebar-section-header{padding:8px 16px 12px;font-size:.8rem;font-weight:700;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em}.editor-pane{position:relative;width:0;background-color:var(--color-surface);border-left:1px solid var(--color-border);display:flex;flex-direction:column;transition:width .3s cubic-bezier(.4,0,.2,1);overflow:hidden;height:100vh}.editor-pane.open{width:50%;border-left:1px solid var(--color-border)}.editor-header{padding:15px;background:var(--color-surface);border-bottom:1px solid var(--color-border);display:flex;justify-content:space-between;align-items:center}.editor-header h3{margin:0;font-size:1.1rem}.close-editor-btn{background:none;border:none;color:var(--color-text-muted);font-size:1.5rem;cursor:pointer;line-height:1}.editor-controls{background:var(--color-surface);border-top:1px solid var(--color-border)}.editor-preview-area{flex:1;background:#000;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.video-player-wrapper{width:100%;height:100%;display:flex;align-items:center;justify-content:center}.editor-main-player{max-width:100%;max-height:100%}.caption-overlay{position:absolute;z-index:10;cursor:move;-webkit-user-select:none;user-select:none;text-align:center;padding:6px 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label{font-size:.7rem;color:var(--color-text-muted);min-width:28px}.caption-color-picker{width:26px;height:22px;border:1px solid var(--color-border);border-radius:4px;cursor:pointer;padding:0;background:none}.caption-opacity-slider{width:60px;height:4px;cursor:pointer;accent-color:var(--color-text-muted)}.caption-toggle{display:flex;align-items:center;gap:2px;cursor:pointer;font-size:.75rem;padding:2px 4px;border-radius:3px;border:1px solid var(--color-border);background:var(--color-surface-hover);transition:all .15s}.caption-toggle:has(input:checked){background:#ffffff1f;border-color:var(--color-text-muted)}.caption-toggle input{display:none}.caption-clear-bg-btn{background:none;border:1px solid var(--color-border);color:var(--color-text-muted);font-size:.7rem;padding:1px 5px;border-radius:3px;cursor:pointer;transition:all .15s}.caption-clear-bg-btn:hover{color:#ff6b6b;border-color:#ff6b6b}.caption-size-select{background:var(--color-surface-hover);border:1px solid var(--color-border);color:var(--color-text-main);padding:2px 6px;border-radius:4px;font-size:.75rem;cursor:pointer}.caption-segments{display:flex;flex-direction:column;gap:4px}.caption-segment{display:flex;align-items:center;gap:6px}.caption-time{font-family:monospace;font-size:.7rem;color:var(--color-text-muted);min-width:36px;flex-shrink:0}.caption-edit-input{flex:1;background:var(--color-bg);border:1px solid var(--color-border);color:var(--color-text-main);padding:3px 6px;border-radius:4px;font-size:.78rem;min-width:0}.caption-edit-input:focus{outline:none;border-color:var(--color-text-muted)}.caption-delete-btn{background:none;border:none;color:var(--color-text-muted);font-size:1rem;cursor:pointer;padding:0 4px;line-height:1;opacity:.5;transition:opacity .15s,color .15s;flex-shrink:0}.caption-delete-btn:hover{opacity:1;color:#ff6b6b}.empty-player{color:var(--color-text-muted)}.editor-timeline-area{height:190px;background:var(--color-surface);border-top:1px solid var(--color-border);padding:10px;overflow-y:auto}.timeline-tracks{display:flex;gap:10px;margin-top:10px;padding-bottom:10px;overflow-x:auto}.timeline-clip{height:80px;background:var(--color-bg);border:1px solid var(--color-border);border-radius:6px;padding:0;cursor:pointer;display:flex;flex-direction:column;justify-content:center;align-items:center;position:relative;overflow:visible;flex-shrink:0}.trim-dimmer{position:absolute;top:0;height:100%;background:#0009;z-index:5;pointer-events:none}.timeline-clip.active{border-color:var(--color-text-main);background:#ffffff0d}.clip-thumb{font-size:.8rem;color:var(--color-text-muted)}.clip-info{font-size:.75rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.editor-footer{padding:15px;border-top:1px solid var(--color-border);display:flex;justify-content:flex-end;background:var(--color-surface)}.export-btn{background:var(--color-surface-hover);border:1px solid var(--color-border);color:var(--color-text-main);padding:6px 12px;border-radius:4px;cursor:pointer;font-size:.75rem;transition:all .2s}.export-btn:hover{background:var(--color-surface)}.chat-wrapper{flex:1;display:flex;flex-direction:column;transition:width .3s;min-width:0;height:100vh;position:relative}.app-container{flex-direction:row}.sidebar-add-btn{margin-top:8px;width:100%;padding:6px;background:var(--color-surface-hover);border:1px solid var(--color-border);color:var(--color-text-main);border-radius:4px;cursor:pointer;font-size:12px;transition:all .2s}.sidebar-add-btn:hover{background:var(--color-surface);border-color:var(--color-text-muted)}.preview-all-btn{background:var(--color-surface-hover);border:1px solid var(--color-border);color:var(--color-text-main);padding:4px 10px;border-radius:4px;cursor:pointer;font-size:13px;margin-right:10px}.preview-all-btn:hover{background:var(--color-surface);border-color:var(--color-text-muted)}.header-actions{display:flex;align-items:center}.timeline-clip.playing{border-color:#4caf50;box-shadow:0 0 8px #4caf504d}.timeline-clip{position:relative;transition:all .2s;cursor:pointer}.trim-handle{position:absolute;top:0;width:12px;height:100%;background:#ffffff80;cursor:ew-resize;z-index:10;display:flex;align-items:center;justify-content:center}.trim-handle:after{content:"";width:3px;height:40%;background:#00000080;border-radius:2px}.trim-handle:hover{background:#ffffff4d}.trim-handle:hover:after{background:#fff}.trim-handle.left{left:0;border-right:1px solid rgba(255,255,255,.5);border-radius:4px 0 0 4px}.trim-handle.right{right:0;border-left:1px solid rgba(255,255,255,.5);border-radius:0 4px 4px 0}.time-display{font-family:monospace;background:var(--color-surface-hover);padding:4px 8px;border-radius:4px;font-size:13px;color:var(--color-text-main)}.clip-thumb-container{width:100%;height:100%;position:absolute;top:0;left:0;z-index:1;overflow:hidden;border-radius:4px;pointer-events:none;display:flex;align-items:center;justify-content:center}.clip-thumbnail-video{height:100%;width:auto;min-width:500px;object-fit:cover;opacity:.6;position:absolute;left:50%;transform:translate(-50%)}.clip-info{position:relative;z-index:2;font-size:11px;font-weight:600;text-shadow:0 1px 2px rgba(0,0,0,.8);pointer-events:none}.help-btn{background:var(--color-surface-hover);border:1px solid var(--color-border);color:var(--color-text-muted);width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:14px;font-weight:700;transition:all .2s;margin-right:8px}.help-btn:hover{background:var(--color-border);color:var(--color-text-main)}.editor-help-overlay{position:absolute;bottom:calc(100% + 12px);right:0;width:300px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:8px;box-shadow:0 8px 24px #0006;z-index:1000;padding:15px;animation:slideInHelp .2s ease-out}@keyframes slideInHelp{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.help-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;border-bottom:1px solid var(--color-border);padding-bottom:8px}.help-header h4{margin:0;font-size:1rem}.close-help-btn{background:none;border:none;color:var(--color-text-muted);font-size:18px;cursor:pointer}.help-content{font-size:.85rem;color:var(--color-text-muted)}.help-section{margin-bottom:12px}.help-section strong{display:block;color:var(--color-text-main);margin-bottom:4px}.help-section p{margin:0;line-height:1.4}.help-toggle-btn{background:var(--color-surface-hover);border:1px solid var(--color-border);color:var(--color-text-main);padding:6px 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slideUpTips{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.prompt-tips-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;border-bottom:1px solid var(--color-border);padding-bottom:8px}.prompt-tips-header h4{margin:0;font-size:.9rem;color:var(--color-text-main)}.close-tips-btn{background:none;border:none;color:var(--color-text-muted);font-size:16px;cursor:pointer}.tips-content{font-size:.8rem;color:var(--color-text-muted);max-height:250px;overflow-y:auto}.tip-item{margin-bottom:12px}.tip-item strong{display:block;color:var(--color-text-main);margin-bottom:4px}.tip-item p{margin:4px 0 0;line-height:1.4}.payment-modal-overlay{position:fixed;inset:0;background:#000000d9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:2000;animation:fadeIn .3s ease-out}.payment-modal-content{background:linear-gradient(135deg,#1a1a1a,#0d0d0d);border:1px solid 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p{color:var(--color-text-muted);margin:0;font-size:.85rem;line-height:1.4}.tier-cards{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;margin-bottom:16px}.tier-card{position:relative;background:#ffffff0a;border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:16px 14px;text-align:center;transition:border-color .2s,box-shadow .2s}.tier-card:hover{border-color:#fff3}.tier-card-popular{border-color:#9333ea80;background:#9333ea14}.tier-card-popular:hover{border-color:#9333eab3;box-shadow:0 0 20px #9333ea26}.tier-popular-badge{position:absolute;top:-10px;left:50%;transform:translate(-50%);background:linear-gradient(135deg,#7c3aed,#9333ea);color:#fff;font-size:.65rem;font-weight:700;padding:3px 12px;border-radius:9999px;letter-spacing:.05em;text-transform:uppercase}.tier-card h3{font-size:1rem;font-weight:650;margin:0 0 4px;color:#fff}.tier-price{font-size:1.8rem;font-weight:800;color:#fff;margin-bottom:10px;letter-spacing:-.03em}.tier-price span{font-size:.9rem;font-weight:500;color:var(--color-text-muted)}.tier-features{list-style:none;padding:0;margin:0 0 14px;text-align:left}.tier-features li{font-size:.78rem;color:#fffc;padding:3px 0;line-height:1.35}.upgrade-submit-btn{width:100%;background:#fff;color:#000;border:none;padding:10px;border-radius:10px;font-weight:700;font-size:.84rem;cursor:pointer;transition:all .2s}.upgrade-submit-btn:hover{transform:translateY(-2px);box-shadow:0 10px 20px #ffffff1a}.upgrade-popular-btn{background:linear-gradient(135deg,#7c3aed,#9333ea);color:#fff}.upgrade-popular-btn:hover{box-shadow:0 10px 20px #9333ea4d}.tier-card-enterprise{border-color:#eab30866;background:#eab3080f}.tier-card-enterprise:hover{border-color:#eab30899;box-shadow:0 0 20px #eab3081f}.upgrade-enterprise-btn{background:linear-gradient(135deg,#b8860b,#d4a017);color:#fff}.upgrade-enterprise-btn:hover{box-shadow:0 10px 20px 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button{background:#ffffff1a;border:1px solid rgba(255,255,255,.1);color:#fff;padding:0 16px;border-radius:8px;font-size:.8rem;font-weight:600;cursor:pointer;transition:all .2s}@media(max-width:768px){.payment-modal-content{width:100%;max-width:100%;max-height:100vh;border-radius:0;padding:20px 16px}.payment-modal-header{margin-bottom:12px}.payment-modal-header h2{font-size:1.2rem}.tier-cards{grid-template-columns:1fr;gap:10px;margin-bottom:12px}.tier-card{padding:14px 12px}.tier-features{margin-bottom:10px}.tier-features li{font-size:.75rem;padding:2px 0}.tier-price{font-size:1.5rem;margin-bottom:8px}.payment-modal-checkout-view{max-width:100%}.stripe-checkout-container{min-height:300px}.redeem-code-section{margin:8px 0 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