:root{--primary: #6366f1;--primary-dark: #4f46e5;--primary-light: #818cf8;--success: #10b981;--success-dark: #059669;--text: #1f2937;--text-light: #6b7280;--bg: #ffffff;--bg-secondary: #f9fafb;--border: #e5e7eb;--shadow: rgba(0, 0, 0, 0.1);--shadow-lg: rgba(0, 0, 0, 0.15);--bg-gradient-start: #667eea;--bg-gradient-end: #764ba2;--cancel: #dc2626;--faq-bg: white;--faq-item-bg: white;--faq-item-hover-bg: #fafbfc;--faq-item-border: #f3f4f6;--header-text: white;--primary-hover-bg: rgba(99, 102, 241, 0.1)}[data-theme=dark]{--primary: #818cf8;--primary-dark: #6366f1;--primary-light: #a5b4fc;--success: #34d399;--success-dark: #10b981;--text: #f9fafb;--text-light: #9ca3af;--bg: #111827;--bg-secondary: #1f2937;--border: #374151;--shadow: rgba(0, 0, 0, 0.3);--shadow-lg: rgba(0, 0, 0, 0.5);--bg-gradient-start: #1e1b4b;--bg-gradient-end: #312e81;--cancel: #ef4444;--faq-bg: #1f2937;--faq-item-bg: #1f2937;--faq-item-hover-bg: #283548;--faq-item-border: #374151;--header-text: white;--primary-hover-bg: rgba(129, 140, 248, 0.15)}html{scroll-behavior:smooth}*{margin:0;padding:0;box-sizing:border-box}.skip-to-content{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;z-index:1000}.skip-to-content:focus{position:fixed;top:10px;left:10px;width:auto;height:auto;padding:8px 16px;background:var(--primary);color:#fff;border-radius:4px;text-decoration:none;font-weight:600}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;line-height:1.6;color:var(--text);background:linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);min-height:100vh;padding:20px}.container{max-width:900px;margin:0 auto}.header{text-align:center;margin-bottom:40px;color:var(--header-text);position:relative}.logo{display:flex;align-items:center;justify-content:center;gap:15px;margin-bottom:10px;text-decoration:none;color:inherit}.logo-icon{width:48px;height:48px;color:var(--header-text)}.logo .logo-text{font-size:3rem;font-weight:800;letter-spacing:-1px}.tagline{font-size:1.25rem;opacity:.95;font-weight:300}.main{background:var(--bg);border-radius:16px;box-shadow:0 20px 60px var(--shadow-lg);padding:40px;min-height:500px}.upload-section,.bulk-upload-section{text-align:center}.upload-box{border:3px dashed var(--border);border-radius:12px;padding:60px 40px;transition:all .3s ease;cursor:pointer}.upload-box:hover,.upload-box.drag-over{border-color:var(--primary);background:var(--bg-secondary)}.upload-icon{width:64px;height:64px;color:var(--primary);margin-bottom:20px}.upload-box h2{font-size:1.75rem;margin-bottom:10px;color:var(--text)}.upload-box p{color:var(--text-light);margin-bottom:20px}.select-btn{background:var(--primary);color:#fff;border:none;padding:14px 32px;font-size:1rem;font-weight:600;border-radius:8px;cursor:pointer;transition:all .2s;margin-bottom:20px}.select-btn:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px var(--shadow)}.privacy-note{font-size:.9rem;color:var(--success);font-weight:500;margin-top:20px}.converter-section{animation:fadeIn .4s ease}@keyframes fadeIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.file-info{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-bottom:40px;padding-bottom:30px;border-bottom:2px solid var(--border)}.file-preview.hidden+.file-details{grid-column:1/-1}.file-preview video{width:100%;border-radius:8px;background:#000;max-height:250px}.file-details{display:flex;flex-direction:column;justify-content:center}.file-details h3{font-size:1.25rem;margin-bottom:10px;word-break:break-word}.file-details p{color:var(--text-light);margin-bottom:8px}.change-file-btn{margin-top:20px;background:var(--bg-secondary);color:var(--text);border:2px solid var(--border);padding:10px 20px;border-radius:8px;cursor:pointer;font-weight:600;transition:all .2s}.change-file-btn:hover{border-color:var(--primary);color:var(--primary)}.format-selector{margin-bottom:30px}.format-selector h3{font-size:1.25rem;margin-bottom:15px;color:var(--text)}.format-label{font-size:.85rem;font-weight:600;color:var(--text-light);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px;margin-top:16px}.format-label:first-of-type{margin-top:0}.format-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:10px;margin-bottom:12px}.format-btn{background:var(--bg-secondary);border:2px solid var(--border);color:var(--text);padding:12px 8px;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s;text-transform:uppercase;text-align:center}.format-btn:hover{border-color:var(--primary-light);background:var(--primary-hover-bg)}.format-btn.selected{background:var(--primary);color:#fff;border-color:var(--primary)}.format-btn:disabled{display:none}.resolution-options,.quality-options{margin-bottom:30px}.resolution-options h3,.quality-options h3{font-size:1.25rem;margin-bottom:15px;color:var(--text)}.resolution-controls,.quality-controls{display:grid;grid-template-columns:repeat(4, 1fr);gap:10px}.option-btn{background:var(--bg-secondary);border:2px solid var(--border);color:var(--text);padding:12px 8px;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s;text-align:center}.option-btn:hover{border-color:var(--primary-light);background:var(--primary-hover-bg)}.option-btn.selected{background:var(--primary);color:#fff;border-color:var(--primary)}.option-btn.selected small{color:hsla(0,0%,100%,.8)}.option-btn small{display:block;font-size:.75rem;font-weight:400;color:var(--text-light);margin-top:4px}.advanced-toggle{margin-bottom:24px}.advanced-btn{display:inline-flex;align-items:center;gap:6px;background:none;border:none;color:var(--primary);font-size:.95rem;font-weight:600;cursor:pointer;padding:4px 0;transition:opacity .2s}.advanced-btn:hover{opacity:.8}.advanced-btn .advanced-chevron{width:16px;height:16px;transition:transform .2s}.advanced-btn.open .advanced-chevron{transform:rotate(180deg)}.guide-tooltip{position:absolute;top:-8px;left:0;transform:translateY(-100%);background:var(--primary);color:#fff;padding:10px 16px;border-radius:8px;font-size:.9rem;font-weight:500;display:flex;align-items:center;gap:12px;z-index:100;box-shadow:0 4px 16px var(--shadow);white-space:nowrap;animation:tooltipIn .3s ease}.guide-tooltip::after{content:"";position:absolute;bottom:-6px;left:24px;width:12px;height:12px;background:var(--primary);transform:rotate(45deg)}.guide-tooltip.guide-tooltip-convert{position:relative;top:auto;left:auto;transform:none;margin-top:12px;justify-content:center}.guide-tooltip.guide-tooltip-convert::after{bottom:auto;top:-6px;right:auto;left:50%;margin-left:-6px}@keyframes tooltipIn{from{opacity:0;transform:translateY(calc(-100% + 8px))}to{opacity:1;transform:translateY(-100%)}}.guide-tooltip-close{background:hsla(0,0%,100%,.2);color:#fff;border:none;padding:4px 10px;border-radius:4px;font-size:.8rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:background .2s}.guide-tooltip-close:hover{background:hsla(0,0%,100%,.35)}.convert-btn{width:100%;background:var(--primary);color:#fff;border:none;padding:16px 32px;font-size:1.125rem;font-weight:700;border-radius:8px;cursor:pointer;transition:all .2s;margin-bottom:20px}.convert-btn:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 6px 20px var(--shadow)}.convert-btn:active{transform:translateY(0)}.convert-btn:disabled{background:var(--text-light);cursor:not-allowed;transform:none;box-shadow:none}.progress-section{margin:30px 0;text-align:center}.progress-bar{width:100%;height:12px;background:var(--bg-secondary);border-radius:6px;overflow:hidden;margin-bottom:15px}.progress-fill{height:100%;background:linear-gradient(90deg, var(--primary), var(--primary-light));border-radius:6px;transition:width .3s ease;width:0%}.progress-text{color:var(--text-light);font-weight:600;font-size:1.125rem}.time-remaining{color:var(--text-light);font-size:.95rem;margin-top:8px}.cancel-btn{margin-top:20px;background:rgba(0,0,0,0);color:var(--cancel);border:2px solid var(--cancel);padding:10px 24px;border-radius:8px;cursor:pointer;font-weight:600;transition:all .2s}.cancel-btn:hover{background:var(--cancel);color:#fff}.download-section{text-align:center;padding:40px 0}.download-section .download-actions{display:flex;justify-content:center;align-items:center;gap:12px;flex-wrap:wrap}.success-icon{width:80px;height:80px;background:var(--success);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:3rem;margin:0 auto 20px;animation:scaleIn .4s ease}@keyframes scaleIn{from{transform:scale(0)}to{transform:scale(1)}}.download-section h3{font-size:1.75rem;margin-bottom:25px;color:var(--text)}.download-btn{background:var(--success);color:#fff;border:none;padding:16px 40px;font-size:1.125rem;font-weight:700;border-radius:8px;cursor:pointer;transition:all .2s}.download-btn:hover{background:var(--success-dark);transform:translateY(-2px);box-shadow:0 6px 20px var(--shadow)}.share-file-btn{display:inline-flex;align-items:center;gap:6px;background:rgba(0,0,0,0);color:var(--primary);border:2px solid var(--primary);padding:12px 32px;font-size:1rem;font-weight:600;border-radius:8px;cursor:pointer;transition:all .2s}.share-file-btn svg{flex-shrink:0}.share-file-btn:hover{background:var(--primary);color:#fff}.convert-another-btn{background:rgba(0,0,0,0);color:var(--primary);border:2px solid var(--primary);padding:12px 32px;font-size:1rem;font-weight:600;border-radius:8px;cursor:pointer;transition:all .2s}.convert-another-btn:hover{background:var(--primary);color:#fff}.hidden{display:none !important}.bulk-settings{margin-bottom:24px;padding-bottom:24px;border-bottom:2px solid var(--border)}.bulk-settings-row{display:flex;gap:16px;flex-wrap:wrap}.bulk-setting{display:flex;align-items:center;gap:8px;flex:1;min-width:140px}.bulk-setting label{font-weight:600;font-size:.95rem;color:var(--text);white-space:nowrap}.bulk-select{flex:1;padding:10px 12px;border-radius:8px;border:2px solid var(--border);background:var(--bg-secondary);color:var(--text);font-size:.95rem;font-weight:600;cursor:pointer;transition:border-color .2s}.bulk-select:focus{outline:none;border-color:var(--primary)}.bulk-queue{display:flex;flex-direction:column;gap:8px;margin-bottom:24px;max-height:400px;overflow-y:auto}.bulk-queue-item{display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:12px;padding:12px 16px;border-radius:8px;border:2px solid var(--border);background:var(--bg-secondary);transition:all .2s}.bulk-queue-item-active{border-color:var(--primary-light);background:var(--primary-hover-bg)}.bulk-queue-item-done{border-color:var(--success);background:rgba(16,185,129,.05)}[data-theme=dark] .bulk-queue-item-done{background:rgba(52,211,153,.08)}.bulk-queue-item-failed{border-color:var(--cancel);opacity:.7}.bulk-queue-info{display:flex;flex-direction:column;gap:2px;min-width:0}.bulk-queue-name{font-weight:600;font-size:.95rem;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.bulk-queue-meta{font-size:.8rem;color:var(--text-light)}.bulk-queue-status{white-space:nowrap}.bulk-queue-actions{display:flex;gap:8px}.bulk-status{font-size:.85rem;font-weight:600}.bulk-status-pending{color:var(--text-light)}.bulk-status-converting{color:var(--primary)}.bulk-status-done{color:var(--success)}.bulk-status-failed{color:var(--cancel)}.bulk-item-progress{display:flex;align-items:center;gap:10px}.bulk-item-progress-bar{width:100px;height:6px;background:var(--border);border-radius:3px;overflow:hidden}.bulk-item-progress-fill{height:100%;background:linear-gradient(90deg, var(--primary), var(--primary-light));border-radius:3px;transition:width .3s ease}.bulk-remove-btn,.bulk-download-btn{background:none;border:none;cursor:pointer;padding:4px;border-radius:4px;color:var(--text-light);transition:all .2s;display:flex;align-items:center;justify-content:center}.bulk-remove-btn:hover,.bulk-download-btn:hover{color:var(--text);background:var(--border)}.bulk-remove-btn:hover{color:var(--cancel)}.bulk-download-btn:hover{color:var(--success)}.bulk-actions{display:flex;gap:12px;align-items:stretch;flex-wrap:wrap}.bulk-actions .select-btn{flex:0 0 auto;margin-bottom:0}.bulk-actions .convert-btn{flex:1;margin-bottom:0}.bulk-complete{text-align:center;padding:40px 0}.bulk-complete .download-actions{display:flex;justify-content:center;align-items:center;gap:12px;flex-wrap:wrap}.features-bar{margin-top:40px;color:var(--header-text);text-align:center}.features{display:flex;justify-content:center;gap:30px;flex-wrap:wrap;margin-bottom:20px}.feature{display:flex;align-items:center;gap:8px;font-weight:500;font-size:1rem}.feature-icon{font-size:1.5rem}.copyright{opacity:.8;font-size:.9rem}.copyright a{color:var(--header-text);text-decoration:none;border-bottom:1px solid hsla(0,0%,100%,.5);transition:border-color .2s}.copyright a:hover{border-bottom-color:#fff}.faq-section{margin-top:40px;margin-bottom:40px}.footer{text-align:center;padding:0 20px 40px;color:var(--header-text)}.footer p{opacity:.8;font-size:.9rem;margin:0}.footer a{color:var(--header-text);text-decoration:none;border-bottom:1px solid hsla(0,0%,100%,.5);transition:border-color .2s}.footer a:hover{border-bottom-color:#fff}.faq-container{max-width:900px;margin:0 auto;background:var(--faq-bg);border-radius:20px;padding:60px 50px;box-shadow:0 25px 70px var(--shadow-lg)}.faq-container h2{text-align:center;font-size:1.75rem;margin-bottom:60px;color:var(--text);font-weight:800;letter-spacing:-0.5px}.faq-item{margin-bottom:24px;padding:28px 32px;border-radius:12px;background:var(--faq-item-bg);transition:all .3s ease;border:2px solid var(--faq-item-border)}.faq-item:last-child{margin-bottom:0}.faq-item:hover{background:var(--faq-item-hover-bg);border-color:var(--primary-light);transform:translateY(-2px);box-shadow:0 8px 20px var(--shadow)}.faq-item summary{font-size:1.2rem;color:var(--text);font-weight:700;line-height:1.4;cursor:pointer;list-style:none;display:flex;align-items:baseline}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary::before{content:"+";color:var(--primary);font-size:1.4rem;font-weight:700;margin-right:12px;flex-shrink:0;width:.75em;text-align:center;line-height:1;position:relative;top:-0.05em}.faq-item[open] summary::before{content:"-"}.faq-item[open]>div{margin-top:14px}.faq-item p{color:var(--text-light);line-height:1.75;font-size:1rem;margin:0;padding-left:24px}.faq-item p a{color:var(--primary);text-decoration:none;font-weight:500;border-bottom:1px solid rgba(0,0,0,0);transition:border-color .2s}.faq-item p a:hover{border-bottom-color:var(--primary)}.about-section{margin-top:40px;margin-bottom:40px}.about-container{max-width:900px;margin:0 auto;background:var(--faq-bg);border-radius:20px;padding:60px 50px;box-shadow:0 25px 70px var(--shadow-lg)}.about-container h2{font-size:1.75rem;margin-bottom:20px;color:var(--text);font-weight:800;letter-spacing:-0.5px}.about-container h3{font-size:1.25rem;margin-top:32px;margin-bottom:16px;color:var(--text);font-weight:700}.about-container>p{color:var(--text-light);line-height:1.75;font-size:1rem}.about-tools{display:grid;grid-template-columns:1fr 1fr;gap:16px}.about-tool{display:block;padding:24px;border-radius:12px;border:2px solid var(--faq-item-border);background:var(--faq-item-bg);text-decoration:none;transition:all .3s ease}.about-tool:hover{border-color:var(--primary-light);transform:translateY(-2px);box-shadow:0 8px 20px var(--shadow)}.about-tool strong{display:block;font-size:1.1rem;color:var(--primary);margin-bottom:8px}.about-tool span{color:var(--text-light);font-size:.95rem;line-height:1.6}.header-actions{position:absolute;top:0;right:0;display:flex;align-items:center;gap:8px}.nav-toggle{background:hsla(0,0%,100%,.15);border:1px solid hsla(0,0%,100%,.25);color:var(--header-text);width:40px;height:40px;border-radius:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s;backdrop-filter:blur(8px)}.nav-toggle svg{width:20px;height:20px}.nav-toggle:hover{background:hsla(0,0%,100%,.25)}.nav-dropdown{position:absolute;top:100%;right:0;margin-top:8px;background:var(--bg);border-radius:12px;box-shadow:0 8px 30px var(--shadow-lg);border:1px solid var(--border);min-width:180px;padding:8px 0;z-index:100}.nav-dropdown-link{display:block;padding:10px 20px;color:var(--text);text-decoration:none;font-weight:500;font-size:.95rem;transition:all .2s}.nav-dropdown-link:hover{background:var(--bg-secondary);color:var(--primary)}.theme-toggle,.share-toggle{background:hsla(0,0%,100%,.15);border:1px solid hsla(0,0%,100%,.25);color:var(--header-text);width:40px;height:40px;border-radius:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s;backdrop-filter:blur(8px)}.theme-toggle svg,.share-toggle svg{width:20px;height:20px}.theme-toggle:hover,.share-toggle:hover{background:hsla(0,0%,100%,.25)}.share-dropdown{position:absolute;top:100%;right:0;margin-top:8px;background:var(--bg);border-radius:12px;box-shadow:0 8px 30px var(--shadow-lg);border:1px solid var(--border);min-width:160px;padding:8px 0;z-index:100}.share-dropdown-btn{display:flex;align-items:center;gap:10px;width:100%;padding:10px 20px;background:none;border:none;color:var(--text);font-weight:500;font-size:.95rem;cursor:pointer;transition:all .2s;text-align:left}.share-dropdown-btn svg{width:16px;height:16px;flex-shrink:0}.share-dropdown-btn:hover{background:var(--bg-secondary);color:var(--primary)}.share-copied{color:var(--success) !important}@media(max-width: 768px){.header{margin-bottom:24px}.logo{justify-content:flex-start}.logo .logo-text{font-size:2rem}.tagline{text-align:left}.main{padding:24px 20px}.upload-box{padding:40px 24px}.file-info{grid-template-columns:1fr;gap:20px}.format-grid{grid-template-columns:repeat(3, 1fr);gap:8px}.resolution-controls,.quality-controls{grid-template-columns:repeat(3, 1fr);gap:8px}.features-bar{margin-top:24px}.features{gap:16px}.feature{font-size:.9rem}.faq-section{margin-top:24px;margin-bottom:24px}.faq-container{padding:32px 20px;border-radius:16px}.faq-container h2{font-size:1.5rem;margin-bottom:28px}.faq-item{padding:20px 16px;margin-bottom:12px}.faq-item summary{font-size:1.05rem}.faq-item p{font-size:.95rem;padding-left:20px;line-height:1.65}.about-section{margin-top:24px;margin-bottom:24px}.about-container{padding:32px 20px;border-radius:16px}.about-container h2{font-size:1.5rem}.about-tools{grid-template-columns:1fr}.about-tool{padding:20px 16px}.guide-tooltip{font-size:.8rem;padding:8px 12px}.footer{padding-bottom:24px}.bulk-settings-row{flex-direction:column}.bulk-item-progress-bar{width:70px}}@media(max-width: 480px){body{padding:10px}.header{margin-bottom:16px}.logo .logo-text{font-size:1.75rem}.tagline{font-size:1rem}.upload-box{padding:32px 16px}.format-grid,.resolution-controls,.quality-controls{grid-template-columns:repeat(2, 1fr)}.tool-option-btns{grid-template-columns:repeat(2, 1fr)}.trim-timecodes{flex-direction:column;gap:8px}}.nav-dropdown-label{display:block;padding:8px 20px 4px;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text-light);border-top:1px solid var(--border);margin-top:4px}.nav-dropdown-indent{padding-left:32px}.browser-banner{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fef3c7;border:1px solid #fbbf24;border-radius:8px;padding:12px 16px;margin-bottom:24px;font-size:.9rem;color:#92400e}[data-theme=dark] .browser-banner{background:#422006;border-color:#b45309;color:#fde68a}.browser-banner p{margin:0}.browser-banner a{color:inherit;font-weight:600;text-decoration:underline}.browser-banner-close{background:none;border:none;color:inherit;font-size:1.25rem;cursor:pointer;padding:0 4px;line-height:1;opacity:.7;transition:opacity .2s}.browser-banner-close:hover{opacity:1}.tool-h1{font-size:1.75rem;font-weight:800;letter-spacing:-0.5px;margin-bottom:24px;color:var(--text);text-align:center}.tool-section{animation:fadeIn .4s ease}.tool-file-info{margin-bottom:24px;padding-bottom:24px;border-bottom:2px solid var(--border)}.tool-file-info h3{font-size:1.25rem;margin-bottom:8px;word-break:break-word}.tool-file-info p{color:var(--text-light);margin-bottom:4px;font-size:.95rem}.compress-file-meta{display:flex;gap:20px;flex-wrap:wrap}.compress-file-meta p{margin-bottom:0}.tool-options{margin-bottom:24px}.tool-option-group{margin-bottom:20px}.tool-option-group>label{display:block;font-size:1.1rem;font-weight:700;margin-bottom:10px;color:var(--text)}.tool-option-btns{display:grid;grid-template-columns:repeat(auto-fit, minmax(110px, 1fr));gap:10px}.custom-size-input{margin-top:12px;display:flex;align-items:center;gap:10px}.custom-size-input label{font-weight:600;font-size:.95rem;color:var(--text);white-space:nowrap}.tool-number-input{padding:10px 12px;border-radius:8px;border:2px solid var(--border);background:var(--bg-secondary);color:var(--text);font-size:.95rem;font-weight:600;width:100px;transition:border-color .2s}.tool-number-input:focus{outline:none;border-color:var(--primary)}.format-support-note{font-size:.85rem;color:var(--text-light);margin-bottom:8px;font-style:italic}.compress-result{font-size:1.25rem;font-weight:700;color:var(--success);margin-bottom:20px}.download-info{color:var(--text-light);margin-bottom:20px;font-size:.95rem}.tool-links-section{margin-top:40px;margin-bottom:40px}.tool-links-container{max-width:900px;margin:0 auto;background:var(--faq-bg);border-radius:16px;padding:32px 40px;box-shadow:0 25px 70px var(--shadow-lg)}.tool-links-container p{color:var(--text-light);margin-bottom:8px;font-size:1rem}.tool-links-container p:last-child{margin-bottom:0}.tool-links-container a{color:var(--primary);text-decoration:none;font-weight:600;border-bottom:1px solid rgba(0,0,0,0);transition:border-color .2s}.tool-links-container a:hover{border-bottom-color:var(--primary)}.trim-preview{margin-bottom:20px}.trim-preview video{width:100%;border-radius:8px;background:#000;max-height:400px}.trim-timeline{padding:16px 12px;margin-bottom:16px}.trim-timeline-track{position:relative;width:100%;height:32px;background:var(--bg-secondary);border-radius:6px;border:2px solid var(--border);cursor:pointer}.trim-timeline-selected{position:absolute;top:0;height:100%;background:rgba(99,102,241,.2);border-top:2px solid var(--primary);border-bottom:2px solid var(--primary);pointer-events:none;will-change:left,width}[data-theme=dark] .trim-timeline-selected{background:rgba(129,140,248,.2)}.trim-timeline-handle{position:absolute;top:-4px;width:14px;height:calc(100% + 8px);border-radius:4px;cursor:ew-resize;z-index:10;transform:translateX(-50%);touch-action:none;will-change:left}.trim-timeline-handle::after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%, 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20px}.completion-links-grid{grid-template-columns:1fr}}.mute-speed-note{text-align:center;color:var(--primary);font-weight:600;font-size:.95rem;margin-bottom:20px}.rotate-preview{margin-bottom:20px;display:flex;justify-content:center;overflow:hidden;border-radius:8px;background:#000}.rotate-preview video{max-width:100%;max-height:400px;transition:transform .3s ease}.rotate-controls{display:flex;gap:24px;margin-bottom:16px;flex-wrap:wrap}.rotate-control-group{flex:1;min-width:200px}.rotate-control-group>label{display:block;font-size:1.1rem;font-weight:700;margin-bottom:10px;color:var(--text)}.rotate-buttons{display:flex;gap:10px;flex-wrap:wrap}.rotate-btn{display:flex;flex-direction:column;align-items:center;gap:6px;padding:12px 16px;min-width:90px;background:var(--bg-secondary);border:2px solid var(--border);border-radius:8px;color:var(--text);font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s}.rotate-btn svg{width:24px;height:24px}.rotate-btn:hover{border-color:var(--primary-light);background:var(--primary-hover-bg)}.rotate-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.rotate-status{text-align:center;margin-bottom:20px}.rotate-status-badge{display:inline-block;padding:6px 16px;border-radius:20px;font-size:.9rem;font-weight:600;background:var(--bg-secondary);color:var(--text-light);border:2px solid var(--border)}.rotate-status-badge.active{background:var(--primary);color:#fff;border-color:var(--primary)}.gif-trim-controls{margin-bottom:20px}.gif-duration-warning{text-align:center;color:#d97706;font-size:.9rem;font-weight:500;margin-top:8px}[data-theme=dark] .gif-duration-warning{color:#fbbf24}.gif-size-estimate{text-align:center;padding:12px 20px;border-radius:8px;background:var(--bg-secondary);border:2px solid var(--border);margin-bottom:20px;font-weight:600;font-size:.95rem;color:var(--text)}.gif-size-estimate.size-warning{border-color:#d97706;color:#d97706}[data-theme=dark] .gif-size-estimate.size-warning{border-color:#fbbf24;color:#fbbf24}.gif-size-estimate.size-danger{border-color:var(--cancel);color:var(--cancel)}.gif-memory-warning{text-align:center;color:var(--cancel);font-size:.9rem;font-weight:500;margin-bottom:16px}.gif-preview-result{margin-bottom:20px;text-align:center}.gif-preview-result img{max-width:100%;max-height:400px;border-radius:8px;border:2px solid var(--border)}.completion-links{margin-top:32px;padding-top:24px;border-top:2px solid var(--border)}.completion-links>p{text-align:center;font-size:1.1rem;font-weight:700;color:var(--text);margin-bottom:16px}.completion-links-grid{display:grid;grid-template-columns:repeat(3, 1fr);gap:12px}.completion-link{display:flex;flex-direction:column;align-items:center;gap:4px;padding:16px 12px;border-radius:8px;border:2px solid 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var(--faq-item-border);background:var(--faq-item-bg);text-decoration:none;text-align:center;transition:all .3s ease}.related-tool-card:hover{border-color:var(--primary-light);transform:translateY(-2px);box-shadow:0 8px 20px var(--shadow)}.related-tool-icon{font-size:2rem}.related-tool-name{font-size:1.05rem;font-weight:700;color:var(--primary)}.related-tool-desc{font-size:.9rem;color:var(--text-light);line-height:1.4}@media(max-width: 768px){.related-tools-grid{grid-template-columns:repeat(2, 1fr)}.related-tools-container{padding:32px 20px;border-radius:16px}.related-tools-container h2{font-size:1.5rem;margin-bottom:24px}.completion-links-grid{grid-template-columns:1fr}.rotate-controls{flex-direction:column;gap:16px}}@media(max-width: 480px){.related-tools-grid{grid-template-columns:1fr}}.tool-subtitle{text-align:center;color:var(--text-light);font-size:1rem;margin:-8px 0 16px;line-height:1.5}.speed-preset-btns{flex-wrap:wrap}.speed-preview{margin-bottom:20px}.speed-preview video{width:100%;border-radius:8px;background:#000;max-height:400px}.speed-preview-label{text-align:center;font-size:.9rem;font-weight:600;color:var(--text-light);margin-top:8px}.speed-duration-badge{text-align:center;padding:10px 16px;background:var(--bg-secondary);border-radius:8px;font-size:.95rem;color:var(--text);min-height:24px;margin-bottom:8px}.speed-duration-badge:empty{display:none}.frames-preview{margin-bottom:16px}.frames-preview video{width:100%;max-height:450px;background:#000;border-radius:8px;display:block}.frames-controls{display:flex;align-items:center;gap:16px;margin-bottom:16px;flex-wrap:wrap;justify-content:center}.frames-step-btns{display:flex;align-items:center;gap:8px}.frames-step-btn{padding:6px 14px;border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--text);font-size:.9rem;cursor:pointer}.frames-step-btn:hover{border-color:var(--primary);color:var(--primary)}.frames-timecode{font-family:monospace;font-size:1rem;color:var(--text);background:var(--bg-secondary);padding:6px 12px;border-radius:6px}.frames-capture-btn{font-size:1rem;padding:10px 24px}.frames-format-row{margin-bottom:16px}.frames-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(150px, 1fr));gap:12px;margin-bottom:16px}.frame-card{position:relative;border-radius:8px;overflow:hidden;border:1px solid var(--border);background:var(--bg-secondary)}.frame-card img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}.frame-timestamp{display:block;text-align:center;font-size:.8rem;color:var(--text-light);padding:4px}.frame-card-actions{display:flex;justify-content:center;gap:6px;padding:4px 6px 8px}.frame-download-btn,.frame-remove-btn{border:none;background:none;cursor:pointer;font-size:.8rem;color:var(--primary);padding:2px 8px}.frame-download-btn:hover,.frame-remove-btn:hover{text-decoration:underline}.frame-remove-btn{color:var(--cancel);font-size:1rem}.frames-actions{text-align:center;margin-bottom:16px}.frames-estimate{text-align:center;font-size:1rem;font-weight:600;color:var(--text);padding:8px 0;margin-bottom:8px}.frames-estimate:empty{display:none}.frames-memory-warning{background:#fef3c7;border:1px solid #f59e0b;border-radius:8px;padding:10px 14px;margin-bottom:16px;font-size:.9rem;color:#92400e}[data-theme=dark] .frames-memory-warning{background:#451a03;border-color:#b45309;color:#fde68a}.frames-change-file{display:block;margin:24px auto 0}@media(max-width: 768px){.frames-grid{grid-template-columns:repeat(auto-fill, minmax(120px, 1fr))}}@media(max-width: 480px){.frames-controls{flex-direction:column}.frames-grid{grid-template-columns:repeat(2, 1fr)}}