@keyframes vsc-indeterminate{0%{transform:translateX(-100%);width:40%}50%{width:60%}to{transform:translateX(300%);width:40%}}.vsc-tool{background:#fff;border-radius:16px;border:1px solid var(--gray-200);padding:2rem;margin-top:2rem}.vsc-upload-area{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;padding:3rem 2rem;border:2px dashed var(--gray-300);border-radius:12px;text-align:center;cursor:pointer;transition:border-color .2s,background .2s}.vsc-upload-area.drag-over,.vsc-upload-area:hover{border-color:#e53e3e;background:#fff5f5}.vsc-upload-area svg{color:var(--gray-400)}.vsc-upload-area p{color:var(--gray-600);margin:0}.vsc-file-info{font-size:.875rem;color:var(--gray-600);background:var(--gray-50);border-radius:8px;padding:.5rem .75rem;margin-bottom:.5rem}.vsc-settings{display:flex;flex-direction:column;gap:1.25rem;margin-top:1.5rem}.vsc-speed-grid{display:flex;flex-wrap:wrap;gap:.5rem}.vsc-speed-btn{padding:.5rem 1rem;border:1px solid var(--gray-300);border-radius:8px;background:#fff;cursor:pointer;font-size:.9rem;font-weight:600;color:var(--gray-700);transition:background .15s,border-color .15s,color .15s}.vsc-speed-btn:hover{border-color:#e53e3e;color:#e53e3e}.vsc-speed-btn.active{background:#e53e3e;border-color:#e53e3e;color:#fff}.vsc-custom-row{display:flex;align-items:center;gap:.75rem}.vsc-custom-row label{font-size:.875rem;font-weight:600;color:var(--gray-700);min-width:120px}.vsc-custom-row span,.vsc-input{font-size:.95rem;color:var(--gray-600)}.vsc-input{padding:.4rem .65rem;border:1px solid var(--gray-300);border-radius:8px;width:90px;color:var(--gray-800)}.vsc-input:focus{outline:0;border-color:#e53e3e;box-shadow:0 0 0 3px rgba(229,62,62,.1)}.vsc-checkbox{display:flex;align-items:center;gap:.5rem;font-size:.9rem;color:var(--gray-700);cursor:pointer}.vsc-checkbox input[type=checkbox]{accent-color:#e53e3e;width:16px;height:16px}.vsc-progress{margin-top:1.5rem}.vsc-progress-bar{height:8px;background:var(--gray-200);border-radius:4px;overflow:hidden;margin-bottom:.75rem}.vsc-progress-fill{height:100%;background:#e53e3e;border-radius:4px;width:40%;animation:vsc-indeterminate 1.4s ease-in-out infinite}.vsc-result{display:flex;flex-direction:column;align-items:center;gap:1rem;margin-top:1.5rem}.vsc-video-preview{width:100%;max-height:360px;border-radius:8px;background:#000}.vsc-result .btn-primary,.vsc-result .btn-secondary{min-width:160px}