:root{--bg-primary: #000000;--bg-secondary: #050505;--bg-card: #0a0a0a;--bg-card-hover: #0f0f0f;--bg-elevated: #1a1a1a;--border: #1a1a1a;--border-light: #262626;--text-primary: #ffffff;--text-secondary: #a3a3a3;--text-muted: #525252;--accent: #ffffff;--accent-light: #f5f5f5;--accent-glow: rgba(255, 255, 255, .05);--accent-glow-strong: rgba(255, 255, 255, .1);--success: #22c55e;--error: #ef4444;--radius: 8px;--radius-sm: 4px;--radius-lg: 12px;--shadow: 0 4px 30px rgba(0, 0, 0, .8);--transition: .25s cubic-bezier(.4, 0, .2, 1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased}.header{display:flex;align-items:center;justify-content:space-between;padding:16px 32px;border-bottom:1px solid var(--border);background:var(--bg-secondary);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);position:sticky;top:0;z-index:100}.header-left{display:flex;align-items:center;gap:12px}.logo{display:flex;align-items:center;gap:10px}.logo-icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:6px;background:transparent}.logo-text{font-size:20px;font-weight:800;letter-spacing:-.5px;background:linear-gradient(135deg,var(--text-primary),var(--text-secondary));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.badge{font-size:11px;font-weight:700;color:#fff;padding:2px 10px;border-radius:6px;background:#7c3aed;text-transform:uppercase;letter-spacing:.05em;display:inline-flex;align-items:center;justify-content:center;line-height:1;border:none}.main{flex:1;max-width:1400px;width:100%;margin:0 auto;padding:24px;display:flex;flex-direction:column;justify-content:center;min-height:calc(100vh - 72px)}.hero{text-align:center}.hero-title{font-size:48px;font-weight:800;letter-spacing:-1.5px;margin-bottom:12px;line-height:1.1;background:linear-gradient(135deg,#fff,#a3a3a3);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.hero-subtitle{font-size:16px;color:var(--text-secondary);margin-bottom:32px}.feature-row{display:flex;justify-content:center;gap:12px;margin-bottom:32px}.feature-badge{display:flex;align-items:center;gap:8px;padding:10px 20px;border-radius:999px;border:1px solid var(--border);background:var(--bg-card);font-size:14px;font-weight:600;color:var(--text-secondary);transition:var(--transition)}.feature-badge.active{border-color:var(--accent);background:var(--accent-glow);color:var(--accent-light);box-shadow:0 0 20px var(--accent-glow)}.feature-icon{display:flex;align-items:center}.upload-zone{border:none;border-radius:var(--radius-lg);padding:32px;cursor:pointer;transition:var(--transition);background:#121212;position:relative;overflow:hidden;max-width:500px;margin:32px auto 0;border:1px solid #1a1a1a;min-height:220px;display:flex;flex-direction:column;justify-content:center}.upload-zone.processing{min-height:300px}.upload-zone:hover{background:#161616;border-color:#262626}.upload-content-new{border:1px dashed #333;border-radius:var(--radius);padding:48px 24px;display:flex;flex-direction:column;align-items:center;justify-content:center;transition:var(--transition)}.upload-zone:hover .upload-content-new{border-color:#444}.upload-box-inner{text-align:center}.upload-text{font-size:14px;font-weight:600;color:#e5e5e5;margin-bottom:4px}.upload-subtext{font-size:12px;color:#737373}.processing-overlay{position:absolute;inset:0;z-index:10;background:#050505e6;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;padding:32px;animation:fadeIn .4s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.spinner-premium{width:64px;height:64px;border:3px solid transparent;border-top-color:#fff;border-right-color:#ffffff4d;border-radius:50%;animation:spin 1s cubic-bezier(.4,0,.2,1) infinite;position:relative;display:flex;align-items:center;justify-content:center}.spinner-premium:before{content:"";position:absolute;inset:8px;border:2px solid transparent;border-bottom-color:#fff;border-left-color:#fff3;border-radius:50%;animation:spin-reverse 1.8s linear infinite}@keyframes spin-reverse{0%{transform:rotate(360deg)}to{transform:rotate(0)}}.progress-details{width:100%;max-width:240px;display:flex;flex-direction:column;align-items:center;gap:12px}.progress-bar-mini{width:100%;height:6px;background:#1a1a1a;border-radius:999px;overflow:hidden;position:relative}.progress-fill-mini{height:100%;width:0%;background:linear-gradient(90deg,#fff,#a3a3a3);transition:width .4s cubic-bezier(.1,.7,.1,1);box-shadow:0 0 15px #fff3}.progress-label{font-size:14px;font-weight:600;color:var(--text-primary)}.progress-percent{font-size:12px;font-weight:700;color:var(--accent)}.preview-container{width:100%;max-width:1400px;margin:0 auto;padding:24px;animation:fadeIn .4s ease}.preview-layout{display:flex;gap:32px;align-items:flex-start}.video-column{flex:0 0 450px}.video-preview-wrapper{position:relative;width:100%;border-radius:var(--radius-lg);overflow:hidden;background:#000;box-shadow:var(--shadow);border:1px solid var(--border)}.video-preview-wrapper video{width:100%;height:100%;object-fit:contain;display:block}.video-preview-wrapper canvas{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:10}.template-sidebar{flex:1;background:#121212;border:1px solid #1a1a1a;border-radius:var(--radius-lg);display:flex;flex-direction:column;max-height:calc(100vh - 120px);overflow:hidden}.sidebar-header{padding:20px 24px;border-bottom:1px solid #1a1a1a}.sidebar-header h3{font-size:18px;font-weight:700;margin-bottom:4px}.sidebar-header p{font-size:13px;color:var(--text-secondary)}.template-grid{flex:1;overflow-y:auto;padding:24px;display:grid;grid-template-columns:repeat(2,1fr);gap:32px 20px;align-content:flex-start}.template-card{display:flex;flex-direction:column;gap:12px;cursor:pointer;transition:var(--transition);position:relative;text-align:center}.template-card:hover{transform:translateY(-2px)}.template-preview-thumbnail{width:100%;height:100px;background:#2a2a2a;border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative;border:1px solid transparent;transition:var(--transition)}.template-card.active .template-preview-thumbnail{border:2px solid #ffffff}.template-card:hover .template-preview-thumbnail{background:#333}.preview-scale-wrapper{transform:scale(.6);transform-origin:center;white-space:nowrap;display:flex;align-items:center;justify-content:center;width:100%}.template-card-icon{width:40px;height:40px;background:#262626;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:var(--transition)}.template-card.active .template-card-icon{background:#7c3aed33;color:#a78bfa}.template-card-info{display:flex;flex-direction:column;gap:2px}.template-label{font-size:14px;font-weight:500;color:#888;transition:var(--transition)}.template-card.active .template-label{color:#fff}.template-sublabel{font-size:12px;color:var(--text-muted)}.active-indicator{margin-left:auto;width:24px;height:24px;background:#7c3aed;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff}.sidebar-footer{padding:20px;border-top:1px solid #1a1a1a;background:#121212}.template-grid::-webkit-scrollbar{width:6px}.template-grid::-webkit-scrollbar-track{background:transparent}.template-grid::-webkit-scrollbar-thumb{background:#262626;border-radius:10px}@media(max-width:900px){.preview-layout{flex-direction:column;align-items:center}.video-column{width:100%;max-width:400px}.template-sidebar{width:100%;max-height:500px}}.file-details{flex:1;display:flex;flex-direction:column;gap:2px;min-width:0}.file-name{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-size{font-size:12px;color:var(--text-muted)}.btn-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-sm);border:none;background:transparent;color:var(--text-muted);cursor:pointer;transition:var(--transition)}.btn-icon:hover{background:var(--bg-elevated);color:var(--error)}.progress-container{padding:20px;border-radius:var(--radius);background:var(--bg-card);border:1px solid var(--border)}.progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.progress-label{font-size:14px;font-weight:500;color:var(--text-secondary)}.progress-percent{font-size:14px;font-weight:700;color:var(--accent)}.progress-bar{width:100%;height:6px;border-radius:999px;background:var(--bg-elevated);overflow:hidden}.progress-fill{height:100%;width:0%;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--accent-light));transition:width .4s ease;position:relative}.progress-fill:after{content:"";position:absolute;right:0;top:-2px;width:10px;height:10px;border-radius:50%;background:var(--accent-light);box-shadow:0 0 12px var(--accent)}.results-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.results-title{font-size:24px;font-weight:700;letter-spacing:-.5px}.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:24px}.stat-card{display:flex;flex-direction:column;align-items:center;gap:4px;padding:20px;border-radius:var(--radius);background:var(--bg-card);border:1px solid var(--border)}.stat-value{font-size:28px;font-weight:800;color:var(--accent)}.stat-label{font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px}.caption-preview{border-radius:var(--radius);background:var(--bg-card);border:1px solid var(--border);margin-bottom:16px;overflow:hidden}.caption-preview-header,.timeline-header{padding:14px 20px;border-bottom:1px solid var(--border)}.caption-preview-header h3,.timeline-header h3{font-size:14px;font-weight:600;color:var(--text-secondary)}.caption-text{padding:20px;font-size:15px;line-height:1.8;color:var(--text-primary);max-height:180px;overflow-y:auto}.caption-timeline{border-radius:var(--radius);background:var(--bg-card);border:1px solid var(--border);margin-bottom:24px;overflow:hidden}.timeline-list{max-height:300px;overflow-y:auto;padding:4px 0}.timeline-item{display:flex;align-items:center;gap:12px;padding:10px 20px;transition:var(--transition);border-bottom:1px solid var(--border)}.timeline-item:last-child{border-bottom:none}.timeline-item:hover{background:var(--bg-card-hover)}.timeline-time{font-size:12px;font-weight:600;color:var(--accent);font-family:JetBrains Mono,Fira Code,monospace;min-width:100px;flex-shrink:0}.timeline-word{font-size:14px;color:var(--text-primary)}.timeline-list::-webkit-scrollbar,.caption-text::-webkit-scrollbar{width:4px}.timeline-list::-webkit-scrollbar-track,.caption-text::-webkit-scrollbar-track{background:transparent}.timeline-list::-webkit-scrollbar-thumb,.caption-text::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:999px}.download-row{display:flex;gap:12px;flex-wrap:wrap}.btn-primary,.btn-secondary,.btn-accent{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:var(--transition);border:none;text-decoration:none}.btn-primary{background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border-light)}.btn-primary:hover{background:var(--border-light);transform:translateY(-1px)}.btn-secondary{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-card);color:var(--text-primary)}.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-light));color:#fff;box-shadow:0 4px 16px var(--accent-glow-strong);flex:1;justify-content:center}.btn-accent:hover{transform:translateY(-2px);box-shadow:0 6px 24px var(--accent-glow-strong)}.btn-accent:disabled{opacity:.5;cursor:not-allowed;transform:none}.render-progress{margin-top:16px;padding:20px;border-radius:var(--radius);background:var(--bg-card);border:1px solid var(--border)}.render-progress .progress-header{margin-bottom:0}.spinner{width:20px;height:20px;border:2px solid var(--border-light);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.render-done{margin-top:16px;padding:32px;border-radius:var(--radius);background:var(--bg-card);border:1px solid rgba(34,197,94,.2)}.render-done-content{display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center}.render-done-content p{font-size:16px;font-weight:600;color:var(--success)}.footer{text-align:center;padding:24px;border-top:1px solid var(--border);font-size:13px;color:var(--text-muted)}.footer .accent{color:var(--accent);font-weight:600}.hidden{display:none!important}@media(max-width:640px){.header{padding:12px 16px}.main{padding:32px 16px 60px}.hero-title{font-size:28px}.upload-zone{padding:40px 24px}.stats-row{grid-template-columns:repeat(3,1fr);gap:8px}.stat-value{font-size:22px}.download-row{flex-direction:column}.btn-accent{flex:unset}}.footer{padding:32px;text-align:center;border-top:1px solid var(--border);color:var(--text-muted);font-size:14px}.footer p{margin:0}.footer a{color:var(--text-secondary);text-decoration:none;font-weight:500;transition:var(--transition)}.footer a:hover{color:#0077b5}