body {
    font-family: Arial, sans-serif;
    background-color: #e0fae2;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    overflow: hidden;
    animation: backgroundAnimation 10s infinite alternate;
}

@keyframes backgroundAnimation {
    0% {
        background-color: #b3eaf1;
    }

    50% {
        background-color: #00796b;
    }

    100% {
        background-color: #2fb4c5;
    }
}

.container {
    background: linear-gradient(to bottom right, #ffffff, #c8e6c9);
    padding: 20px;
    border-radius: 16px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    width: 90%;
    max-width: 400px;
    text-align: center;
    animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

h1 {
    margin-bottom: 20px;
    color: #00796b;
    font-size: 24px;
    animation: textPop 1s ease-in-out;
}

@keyframes textPop {
    0% {
        transform: scale(0.5);
    }

    100% {
        transform: scale(1);
    }
}

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

label {
    display: block;
    margin-bottom: 5px;
    color: #00796b;
}

input[type="number"],
input[type="text"],
select {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid #b0bec5;
    border-radius: 4px;
    box-sizing: border-box;
    transition: border 0.3s;
}

input[type="number"]:focus,
input[type="text"]:focus,
select:focus {
    border-color: #00796b;
    outline: none;
}

button {
    background: #007bff;
    color: #ffffff;
    padding: 10px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s, transform 0.3s;
}

button:hover {
    background: #0056b3;
    transform: scale(1.05);
}

#result {
    margin-top: 20px;
    font-size: 18px;
    color: #00796b;
    animation: resultFadeIn 1s ease-in-out;
}

@keyframes resultFadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}