.login-container {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1), 0 8px 16px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}
.login-container h2 {
    margin-bottom: 20px;
    color: #1c1e21;
    text-align: center;
}
.form-control {
    border-radius: 6px;
    padding: 12px 15px;
    font-size: 17px;
    border: 1px solid #dddfe2;
}
.form-control:focus {
    border-color: #1877f2;
    box-shadow: 0 0 0 0.2rem rgba(24, 119, 242, 0.25);
}
.btn-primary {
    background-color: #1877f2;
    border-color: #1877f2;
    padding: 12px;
    font-size: 18px;
    font-weight: bold;
    border-radius: 6px;
    width: 100%;
}
.btn-primary:hover {
    background-color: #166fe5;
    border-color: #166fe5;
}
.alert {
    margin-top: 15px;
    text-align: center;
}