body {
    background-color: #f4f6f9;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

h1 {
    color: #333;
    text-align: center;
    margin-bottom: 40px;
}

form input[type="url"] {
    border-radius: 0.5rem;
}

form button {
    border-radius: 0.5rem;
}

table {
    background-color: #fff;
    border-radius: 0.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

table th {
    background-color: #007bff;
    color: #fff;
}

table td a {
    color: #007bff;
    text-decoration: none;
}

table td a:hover {
    text-decoration: underline;
}

.container {
    max-width: 900px;
    margin-bottom: 50px;
}

.input-group .form-control {
    border-radius: 0.5rem 0 0 0.5rem;
}

.input-group .btn {
    border-radius: 0 0.5rem 0.5rem 0;
}
