@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(360deg)}}.bg-remover-container{max-width:1200px;margin:40px auto;padding:20px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,sans-serif}.bg-remover-wrapper{background:#fff;border-radius:12px;box-shadow:0 4px 6px rgb(0 0 0/.1);padding:40px}.bg-remover-title{font-size:32px;font-weight:700;color:#1a1a1a;margin:0 0 10px;text-align:center}.bg-remover-subtitle{font-size:16px;color:#666;text-align:center;margin:0 0 30px}.api-key-section{background:#f8f9ff;border-radius:12px;padding:30px;margin-bottom:30px}.api-key-info{display:flex;gap:20px;margin-bottom:25px;background:#fff;padding:20px;border-radius:8px;border-left:4px solid #667eea}.info-icon{font-size:32px;flex-shrink:0}.info-content h3{font-size:20px;font-weight:600;color:#333;margin:0 0 15px}.info-content ol{margin:0;padding-left:20px;color:#555}.info-content ol li{margin-bottom:8px;line-height:1.6}.info-content a{color:#667eea;font-weight:600;text-decoration:none}.info-content a:hover{text-decoration:underline}.api-key-input-wrapper{display:flex;gap:10px;flex-wrap:wrap}.api-key-input{flex:1;min-width:250px;padding:14px 18px;font-size:15px;border:2px solid #e0e0e0;border-radius:8px;transition:all .3s ease;font-family:"Courier New",monospace}.api-key-input:focus{outline:0;border-color:#667eea;box-shadow:0 0 0 3px rgb(102 126 234/.1)}.save-api-btn{padding:14px 28px;font-size:16px;font-weight:600;color:#fff;background:linear-gradient(135deg,#667eea 0,#764ba2 100%);border:0;border-radius:8px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px rgb(102 126 234/.4);white-space:nowrap}.save-api-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgb(102 126 234/.6)}.api-key-status{display:flex;align-items:center;gap:12px;background:#e8f5e9;padding:15px 20px;border-radius:8px;border-left:4px solid #4caf50}.status-icon{font-size:24px;color:#4caf50}.status-text{flex:1;color:#2e7d32;font-weight:500}.change-api-btn{padding:8px 16px;font-size:14px;font-weight:600;color:#667eea;background:#fff;border:2px solid #667eea;border-radius:6px;cursor:pointer;transition:all .3s ease}.change-api-btn:hover{background:#667eea;color:#fff}.upload-section{text-align:center;padding:60px 20px;border:3px dashed #e0e0e0;border-radius:12px;background:#fafafa;transition:all .3s ease}.upload-section:hover{border-color:#4a90e2;background:#f0f7ff}.upload-btn{display:inline-flex;align-items:center;gap:10px;padding:15px 30px;font-size:16px;font-weight:600;color:#fff;background:linear-gradient(135deg,#667eea 0,#764ba2 100%);border:0;border-radius:8px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px rgb(102 126 234/.4)}.upload-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgb(102 126 234/.6)}.upload-btn svg{width:24px;height:24px}.image-preview-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;margin:30px 0}.preview-box{background:#f9f9f9;border-radius:12px;padding:20px;box-shadow:0 2px 8px rgb(0 0 0/.08)}.preview-box h3{font-size:18px;font-weight:600;color:#333;margin:0 0 15px;text-align:center}#bgRemoverProcessedContainer,.preview-box img{background:linear-gradient(45deg,#f0f0f0 25%,transparent 25%),linear-gradient(-45deg,#f0f0f0 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#f0f0f0 75%),linear-gradient(-45deg,transparent 75%,#f0f0f0 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0;border-radius:8px}.preview-box img{width:100%;height:auto;max-height:400px;object-fit:contain}#bgRemoverProcessedContainer{min-height:200px;display:flex;align-items:center;justify-content:center;position:relative}#bgRemoverPlaceholder{color:#999;font-size:14px;text-align:center}.action-buttons{display:flex;justify-content:center;gap:15px;flex-wrap:wrap;margin-top:30px}.primary-btn{border:0}.primary-btn,.secondary-btn{padding:14px 28px;font-size:16px;font-weight:600;border-radius:8px;cursor:pointer;transition:all .3s ease}.primary-btn{color:#fff;background:linear-gradient(135deg,#667eea 0,#764ba2 100%);box-shadow:0 4px 15px rgb(102 126 234/.4)}.primary-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px rgb(102 126 234/.6)}.primary-btn:disabled{opacity:.6;cursor:not-allowed}.secondary-btn{color:#667eea;background:#fff;border:2px solid #667eea}.secondary-btn:hover{background:#667eea;color:#fff;transform:translateY(-2px)}.loader{border:4px solid #f3f3f3;border-top:4px solid #667eea;border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite}.error-message{background:#fee;color:#c33;padding:15px;border-radius:8px;margin-top:20px;text-align:center;font-weight:500}@media (max-width:768px){.bg-remover-wrapper{padding:20px}.bg-remover-title{font-size:24px}.api-key-info{gap:15px}.api-key-info,.api-key-input-wrapper{flex-direction:column}.api-key-input,.save-api-btn{width:100%}.image-preview-container{grid-template-columns:1fr}.action-buttons{flex-direction:column}.primary-btn,.secondary-btn{width:100%}}