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

.login-container {
    max-width: 400px;
    margin: 60px auto;
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

    .login-container h1 {
        text-align: center;
        margin-bottom: 30px;
        color: #333;
    }

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

.form-control {
    width: 100%;
    padding: 10px 14px;
    font-size: 15px;
    border: 1px solid #ccc;
    border-radius: 10px;
    transition: border 0.3s ease;
}

    .form-control:focus {
        border-color: #4A90E2;
        outline: none;
    }

.form-check-input {
    margin-right: 6px;
}

.btn-login {
    width: 100%;
    padding: 12px;
    background-color: #4A90E2;
    border: none;
    color: white;
    font-weight: bold;
    border-radius: 10px;
    transition: background-color 0.3s ease;
}

    .btn-login:hover {
        background-color: #3b78c1;
    }

.text-danger {
    color: #e74c3c;
    font-size: 14px;
}

.alert-danger {
    max-width: 400px;
    margin: 20px auto;
    border-radius: 10px;
    font-size: 14px;
}