.upload-container{display:flex;gap:30px;padding:5px 20px 20px;background-color:var(--bg);min-height:calc(100vh - 70px);max-width:98%;margin:0 0 0 10px;color:var(--text)}.upload-preview-section{flex:0 0 400px;display:flex;flex-direction:column;gap:1.5rem}.video-preview-wrapper{background-color:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center}.video-preview{width:100%;height:100%;object-fit:cover}.placeholder-preview{height:100%;flex-direction:column;background:var(--search);color:var(--text-muted);font-size:1.2rem;text-align:center}.placeholder-preview,.thumbnail-preview-box{width:100%;display:flex;align-items:center;justify-content:center}.thumbnail-preview-box{background-color:#000;border:2px dashed var(--border);padding:0;border-radius:8px;overflow:hidden;position:relative}.thumbnail-label{font-size:.85rem;color:var(--text-muted);margin-bottom:.5rem;font-weight:500}.thumbnail-preview{width:100%;height:100%;max-height:none;object-fit:contain;display:block}.upload-form-section{flex:1 1;background-color:var(--card);border:1px solid var(--border);padding:2rem;border-radius:12px}.upload-title{font-size:1.8rem;margin-bottom:1.5rem;color:var(--text)}.upload-tabs{display:flex;gap:1rem;margin-bottom:1.5rem;border-bottom:1px solid var(--border)}.tab{padding:.75rem 1.5rem;background:none;color:var(--text-muted);font-size:.95rem;font-weight:500;cursor:pointer;border:none;border-bottom:3px solid transparent;transition:all .3s ease}.tab.active{color:var(--text);border-bottom-color:#0066cc}.tab:hover{color:var(--text);background-color:var(--hover)}.upload-form{gap:1.5rem}.form-group,.upload-form{display:flex;flex-direction:column}.form-group{gap:.5rem}.form-group label{font-weight:600;color:var(--text);font-size:.9rem}.form-group input,.form-group select,.form-group textarea{padding:.85rem;background-color:var(--search);border:1px solid var(--border);border-radius:8px;color:var(--text)!important;font-size:1rem;font-family:inherit;transition:all .2s ease}.upload-title-input{font-size:1.25rem!important;font-weight:700!important;color:var(--text)!important}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:#0066cc;background-color:var(--card);box-shadow:0 0 0 3px rgba(0,102,204,.15)}.char-count{font-size:.75rem;color:var(--text-muted);text-align:right;margin-top:2px;font-weight:500}.form-group input::placeholder{color:#555}.file-input{display:none}.select-file-btn{padding:.75rem;background-color:var(--hover);color:var(--text);border:1px solid var(--border);border-radius:6px;font-weight:600;cursor:pointer;transition:all .3s ease}.select-file-btn:hover:not(:disabled){background-color:#0066cc;color:white;border-color:#0066cc}.select-file-btn:disabled{opacity:.5;cursor:not-allowed}.file-name{font-size:.85rem;color:#22c55e;margin-top:.5rem}.upload-progress{padding:1rem;background-color:var(--hover);border-radius:8px}.upload-progress p{font-size:.9rem;margin-bottom:.75rem;color:var(--text-muted)}.progress-bar{width:100%;height:6px;background-color:var(--border);border-radius:3px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,#0066cc,#00bfff);transition:width .3s ease}.upload-btn{padding:1rem;background-color:#0066cc;color:white;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;margin-top:1rem}.upload-btn:hover:not(:disabled){background-color:#0052a3;transform:translateY(-2px)}.upload-btn:disabled{background-color:var(--border)!important;color:var(--text-muted);cursor:not-allowed!important;opacity:.6}.upload-message{padding:1rem;border-radius:8px;text-align:center;font-weight:500;margin-bottom:1rem}.upload-message.success{background-color:rgba(34,197,94,.1);color:#22c55e;border:1px solid #22c55e}.upload-message.error{background-color:rgba(239,68,68,.1);color:#ef4444;border:1px solid #ef4444}.ai-suggest-btn{background:linear-gradient(135deg,#0066cc,#00bfff);color:white;border:none;border-radius:20px;padding:4px 12px;font-size:.75rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 8px rgba(0,102,204,.3)}.ai-suggest-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,102,204,.4);filter:brightness(1.1)}.ai-suggest-btn:disabled{background:var(--border);box-shadow:none;cursor:not-allowed;opacity:.6}.ai-suggestions-list{margin-top:10px;background:var(--search);border:1px solid var(--border);border-radius:8px;padding:8px;animation:fadeIn .3s ease}.suggestions-hint{font-size:.7rem;color:var(--text-muted);margin-bottom:6px;padding-left:4px}.suggestion-item{padding:10px;border-radius:6px;cursor:pointer;font-size:.9rem;color:var(--text);border-bottom:1px solid rgba(255,255,255,.05);transition:all .2s ease;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}.suggestion-item:hover{background:var(--hover);padding-left:15px;color:#00bfff}.suggestion-item:last-child{border-bottom:none}.video-elements-tab{display:flex;flex-direction:column;gap:1.5rem;animation:slideUp .4s ease}.ai-element-card{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;background:linear-gradient(135deg,rgba(0,102,204,.1),rgba(0,191,255,.05));border:1px solid rgba(0,102,204,.2);border-radius:12px;transition:all .3s ease}.ai-element-card.secondary{background:rgba(255,255,255,.02);border-color:var(--border)}.ai-card-content h3{font-size:1.1rem;margin-bottom:6px;color:var(--text)}.ai-card-content p{font-size:.85rem;color:var(--text-muted);max-width:80%}.ai-badge{display:inline-block;margin-top:10px;background:#ffcc00;color:#000;padding:2px 8px;border-radius:4px;font-size:.65rem;font-weight:800;text-transform:uppercase}.ai-action-btn{background:#0066cc;color:white;border:none;border-radius:8px;padding:10px 20px;font-weight:600;cursor:pointer;white-space:nowrap}.ai-action-btn.secondary{background:var(--hover);color:var(--text-muted)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.tos-inline{display:flex;align-items:center;justify-content:flex-start;gap:8px;flex-wrap:nowrap}.tos-inline label{color:var(--text)!important;cursor:pointer}.tos-link{color:#00bfff;text-decoration:underline;cursor:pointer}.form-group textarea{min-height:120px;resize:vertical}.kid-safe-group .kid-safe-row{display:flex;gap:1.5rem;flex-wrap:wrap;color:var(--text);font-size:.9rem}.kid-safe-group input[type=radio]{margin-right:6px;accent-color:#0066cc}.kid-safe-hint{font-size:.8rem;color:var(--text-muted)}@media (max-width:600px){.upload-container{flex-direction:column;gap:1rem;padding:1rem;margin-left:0;max-width:100%}.upload-form-section,.upload-preview-section{width:100%}.video-preview-wrapper{aspect-ratio:16/9}}