*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #ff6b35;--primary-dark: #e85a28;--primary-light: #ff8556;--bg: #0f172a;--bg-secondary: #1e293b;--text: #f1f5f9;--text-secondary: #94a3b8;--border: #334155;--success: #22c55e;--error: #ef4444}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}#app{max-width:800px;margin:0 auto;padding:2rem 1rem}.container{background:var(--bg-secondary);border-radius:16px;padding:2rem;box-shadow:0 4px 6px #0000004d}header{transition:all .3s ease}header.header-minimal h1{font-size:1.5rem;margin-bottom:.75rem}h1{font-size:2.5rem;margin-bottom:.5rem;color:var(--primary);font-weight:700;transition:all .3s ease}.subtitle{color:var(--text-secondary);margin-bottom:1rem;font-size:1.1rem}.supported-sites-top{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:2rem;justify-content:center}.supported-sites-top .site-tag{padding:.4rem .9rem;background:var(--bg);border:1px solid var(--border);border-radius:20px;font-size:.85rem;color:var(--text-secondary)}.input-group{display:flex;gap:.75rem;margin-bottom:1rem}input{flex:1;padding:.875rem 1rem;background:var(--bg);border:2px solid var(--border);border-radius:8px;color:var(--text);font-size:1rem;transition:border-color .2s}input:focus{outline:none;border-color:var(--primary)}input::placeholder{color:var(--text-secondary)}button{padding:.875rem 1.5rem;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s;white-space:nowrap}button:hover:not(:disabled){background:var(--primary-dark)}button:disabled{opacity:.5;cursor:not-allowed}.error{background:#ef44441a;border:1px solid var(--error);color:var(--error);padding:1rem;border-radius:8px;margin-bottom:1rem}.loader{text-align:center;padding:2rem;color:var(--text-secondary)}.progress-indicator{background:#6366f11a;border:1px solid var(--primary);color:var(--primary);padding:1.5rem;border-radius:8px;margin-bottom:1rem;text-align:center}.spinner{border:3px solid var(--border);border-top:3px solid var(--primary);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin:0 auto 1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.video-info{background:var(--bg);border-radius:12px;padding:1.5rem;margin-bottom:1.5rem}.video-header{display:flex;gap:1rem;margin-bottom:1rem}.thumbnail{width:160px;height:90px;object-fit:cover;border-radius:8px;background:var(--border)}.video-meta h3{margin-bottom:.5rem;font-size:1.1rem}.video-meta p{color:var(--text-secondary);font-size:.9rem}.formats{margin-top:1.5rem}.formats h4{margin-bottom:1rem;color:var(--text-secondary);font-size:.9rem;text-transform:uppercase;letter-spacing:.05em}.format-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.75rem}.format-btn{padding:.75rem;background:var(--bg-secondary);border:2px solid var(--border);border-radius:8px;color:var(--text);font-size:.9rem;text-align:left;transition:all .2s}.format-btn:hover:not(:disabled){border-color:var(--primary);background:var(--bg)}.format-quality{font-weight:600;display:block;margin-bottom:.25rem}.format-size{color:var(--text-secondary);font-size:.85rem}.multi-video-selection{margin-top:1rem}.multi-video-selection h4{margin-bottom:1rem;color:var(--text-secondary);font-size:.9rem;text-transform:uppercase;letter-spacing:.05em}.video-list{display:flex;flex-direction:column;gap:.75rem}.video-item-btn{display:flex;gap:1rem;padding:1rem;background:var(--bg-secondary);border:2px solid var(--border);border-radius:8px;text-align:left;transition:all .2s;width:100%;align-items:center}.video-item-btn:hover:not(:disabled){border-color:var(--primary);background:var(--bg);transform:translate(4px)}.video-item-thumbnail{width:120px;height:68px;object-fit:cover;border-radius:6px;background:var(--border);flex-shrink:0}.video-item-meta{display:flex;flex-direction:column;gap:.25rem;flex:1}.video-item-number{font-weight:700;color:var(--primary);font-size:.85rem;text-transform:uppercase;letter-spacing:.05em}.video-item-title{font-weight:500;color:var(--text);font-size:.95rem}.video-item-duration{color:var(--text-secondary);font-size:.85rem}.footer{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--border);text-align:center}.footer p{color:var(--text-secondary);font-size:.9rem}.footer a{color:var(--primary);text-decoration:none;transition:color .2s}.footer a:hover{color:var(--primary-light);text-decoration:underline}@media (max-width: 640px){h1{font-size:2rem}.input-group,.video-header{flex-direction:column}.thumbnail{width:100%;height:auto;aspect-ratio:16 / 9}.format-grid{grid-template-columns:1fr}.video-item-btn{flex-direction:column;align-items:flex-start}.video-item-thumbnail{width:100%;height:auto;aspect-ratio:16 / 9}}