.gcal-popup {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    font-family: Arial, sans-serif;
}

.gcal-popup-content {
    background-color: #fefefe;
    border-left: 5px solid #888;
    border-radius: 5px;
    padding: 15px 20px;
    min-width: 300px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    position: relative;
    animation: slideIn 0.4s ease;
}

.gcal-popup-content.success {
    border-color: #28a745;
    background-color: #e6ffed;
    color: #155724;
}

.gcal-popup-content.error {
    border-color: #dc3545;
    background-color: #ffe6e9;
    color: #721c24;
}

.gcal-popup-close {
    position: absolute;
    right: 12px;
    top: 10px;
    cursor: pointer;
    font-size: 20px;
    font-weight: bold;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}