body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #6a11cb, #2575fc);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: #ffffff;
    flex-direction: column;
    padding: 15px;
}

h1 {
    font-size: 36px;
    color: #ffe77b;
    margin-bottom: 20px;
    font-weight: 600;
    text-align: center; 
}

.container {
    background: rgba(255, 255, 255, 0.9);
    color: #333333;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    padding: 25px;
    width: 100%;
    max-width: 600px;
    animation: fadeIn 1s ease-in-out;
    box-sizing: border-box;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    font-weight: 600;
    color: #555555;
    display: block;
}

.form-group input {
    padding: 10px;
    border: 1px solid #dddddd;
    border-radius: 5px;
    width: 100%;
    margin-top: 5px;
    font-size: 16px;
    transition: all 0.3s ease-in-out;
    box-sizing: border-box;
}

.form-group input:focus {
    border-color: #2575fc;
    box-shadow: 0 0 8px rgba(37, 117, 252, 0.5);
}

.submit-btn {
    background: #2575fc;
    color: #ffffff;
    padding: 15px 20px;
    border: none;
    border-radius: 5px;
    width: 100%;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
    box-sizing: border-box;
}

.submit-btn:hover {
    background: #6a11cb;
}

.submit-btn:active {
    transform: scale(0.98);
}

.submission-message {
    display: none;
    margin-top: 20px;
    font-size: 18px;
    color: #4caf50;
    text-align: center;
}

@media (max-width: 768px) {
    body {
        padding: 20px;
    }

    .container {
        padding: 15px;
    }

    h1 {
        font-size: 28px;
    }

    .form-group input {
        font-size: 14px;
        padding: 8px;
    }

    .submit-btn {
        font-size: 16px;
        padding: 12px;
    }
}