.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.alert {
    padding: 12px 15px;
    margin-bottom: 20px;
    border-radius: 4px;
    font-size: 14px;
}

.alert-success {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.alert-error {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

.create-form {
    margin-bottom: 20px;
}

.create-form input[type="url"] {
    padding: 8px;
    width: 300px;
    margin-right: 10px;
}

.create-form button {
    padding: 8px 16px;
    background-color: #007bff;
    color: white;
    border: none;
    cursor: pointer;
}

.links-table {
    width: 100%;
    border-collapse: collapse;
}

.links-table th,
.links-table td {
    padding: 8px;
    border: 1px solid #ddd;
    text-align: left;
}

.links-table th {
    background-color: #f5f5f5;
}