html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    flex-direction: column;
    min-height: 100vh;
    font-weight: 400;
}

header, footer {
    flex-shrink: 0;
}

.container, .form-container {
    max-width: 400px;
}

h3 {
    text-align: center;
    color: #1d366a;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    font-weight: 600;
    color: #555;
    margin-bottom: 0.5rem;
    display: block;
}

input.form-control {
    padding: 0.8rem;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
    color: #333;
    background-color: #f8f8f8;
    transition: border-color 0.3s ease;
}

    input.form-control:focus {
        border-color: #007bff;
        outline: none;
    }

.text-danger {
    color: #ff0000;
    font-size: 0.875rem;
}

button[type="submit"] {
    width: 100%;
    padding: 0.8rem;
    background-color: #1d366a;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

    button[type="submit"]:hover {
        background-color: #0056b3;
    }

a.btn-link {
    display: block;
    text-align: center;
    margin-top: 1rem;
    color: #007bff;
    text-decoration: none;
    font-size: 0.875rem;
}

    a.btn-link:hover {
        text-decoration: underline;
    }


body > .form-container {
    margin: auto;
}

main.content-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}