:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.drop-zone{border:2px dashed #cccccc;border-radius:10px;padding:40px;text-align:center;cursor:pointer;transition:all .3s ease;background-color:#f9f9f9;color:#666}.drop-zone:hover{border-color:#666;background-color:#f0f0f0}.drop-zone.drag-over{border-color:#2196f3;background-color:#e3f2fd;color:#2196f3}.drop-zone-content p{font-size:1.2rem;margin:0 0 10px;font-weight:500}.drop-zone-content span{font-size:.9rem;color:#999}:root{--primary-color: #646cff;--bg-color: #242424;--text-color: rgba(255, 255, 255, .87)}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh;background-color:var(--bg-color);color:var(--text-color);font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif}#root{max-width:800px;margin:0 auto;padding:2rem;text-align:center;width:100%}.app-container{display:flex;flex-direction:column;gap:2rem}.config-section{margin-bottom:20px}.config-section input{margin-left:10px;padding:5px;border-radius:4px;border:1px solid #666;background:#333;color:#fff;width:60px}.file-list{background:#333;border-radius:8px;padding:1rem;text-align:left}.file-list ul{list-style:none;padding:0;margin:0 0 1rem}.file-item{display:flex;justify-content:space-between;align-items:center;padding:.5rem;background:#444;margin-bottom:.5rem;border-radius:4px}.file-info{display:flex;align-items:center;gap:10px;overflow:hidden}.file-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:300px}.file-size{color:#999;font-size:.8rem}.file-actions button{background:transparent;border:none;color:#ccc;cursor:pointer;font-size:1.2rem;padding:0 5px}.file-actions button:hover{color:#fff}.file-actions button.remove-btn{color:#ff6b6b}.stitch-btn{width:100%;padding:10px;background-color:var(--primary-color);color:#fff;border:none;border-radius:4px;font-weight:700;cursor:pointer;font-size:1rem}.stitch-btn:disabled{background-color:#555;cursor:not-allowed}.progress-section{margin-top:20px;text-align:left}.progress-bar-track{width:100%;height:10px;background:#444;border-radius:5px;margin-top:5px;overflow:hidden}.progress-bar-fill{height:100%;background-color:var(--primary-color);transition:width .3s ease}.progress-bar-fill.processing{background-color:#4caf50}.result-section{margin-top:20px;display:flex;flex-direction:column;gap:15px;align-items:center}.download-btn{display:inline-block;padding:10px 20px;background-color:#4caf50;color:#fff;text-decoration:none;border-radius:4px;font-weight:700}.preview-video{width:100%;max-width:600px;border-radius:8px;border:1px solid #555;margin-top:10px}.error-message{color:#ff6b6b;margin-top:20px;padding:10px;background:#ff00001a;border-radius:4px}.retention-warning{color:#ffd43b;font-size:.9rem;margin:5px 0;background:#ffd43b1a;padding:8px 12px;border-radius:4px;border-left:3px solid #ffd43b}.header-top{display:flex;flex-direction:column;align-items:center;gap:.5rem}.auth-controls{display:flex;align-items:center;justify-content:center;width:100%}.user-info{display:flex;align-items:center;gap:15px}.auth-btn{background:transparent;border:1px solid #666;color:#ccc;padding:5px 10px;border-radius:4px;cursor:pointer}.login-prompt{display:flex;flex-direction:column;align-items:center;gap:1.5rem;padding:2rem;background:#333;border-radius:12px}.login-btn-container{display:flex;justify-content:center;width:100%}