html,body{margin:0;padding:0;width:100%;height:100%;overflow:hidden}#preview-host{width:100%;height:100%;overflow:auto;position:relative}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;width:100%}.spinner{width:40px;height:40px;border:4px solid #e0e0e0;border-top:4px solid #1976d2;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{margin-top:16px;color:#666;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px}.previewer-error{position:fixed;bottom:20px;right:20px;z-index:1000}.previewer-error-content{background-color:#f8d7da;color:#721c24;padding:12px 20px;border-radius:8px 8px 0 0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;box-shadow:0 4px 8px #00000026}.previewer-error>div:last-child{display:flex;justify-content:flex-end}.previewer-fix-button{background-color:#dc3545;color:#fff;border:none;padding:8px 16px;border-radius:0 0 8px 8px;cursor:pointer;font-size:13px;width:100%;box-shadow:0 4px 8px #00000026}.previewer-fix-button:hover{background-color:#c82333}.toast-container{position:fixed;top:20px;right:20px;z-index:1000}.toast{background-color:#fff;color:#333;padding:12px 24px;border-radius:8px;margin-bottom:8px;opacity:0;transform:translate(100%);transition:all .3s ease;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;box-shadow:0 2px 8px #00000026;max-width:350px}.toast.show{opacity:1;transform:translate(0)}.toast-success{background-color:#d4edda;color:#155724;border-left:4px solid #28a745}.toast-error{background-color:#f8d7da;color:#721c24;border-left:4px solid #dc3545}.toast-warning{background-color:#fff3cd;color:#856404;border-left:4px solid #ffc107}.toast-info{background-color:#d1ecf1;color:#0c5460;border-left:4px solid #17a2b8}