body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background: url("assets/background.jpg");
}

.container {
    width: 90%;
    max-width: 600px;
    background-color: #ffffff;
    padding: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    background: linear-gradient(45deg, #0d0812, #0a1a37, rgb(43, 5, 94), rgb(79, 3, 79), rgb(4, 4, 134), rgb(86, 86, 248));
    background-size: 200% 200%;
    animation: gradientAnimation 5s ease infinite;
    position: relative;
}

@keyframes gradientAnimation {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

@property --angle {
    syntax: "<angle>";
    initial-value: 0deg;
    inherits: false;
}

.container::after,
.container::before {
    content: "";
    position: absolute;
    height: 100%;
    width: 100%;
    background-image: conic-gradient(from var(--angle), transparent 70%, purple, rgb(235, 9, 235), blue, red, rgb(254, 13, 202));
    top: 50%;
    left: 50%;
    translate: -50% -50%;
    z-index: -1;
    padding: 7px;
    border-radius: 10px;
    animation: 3s spin linear infinite;
}

.container::before {
    filter: blur(1.5rem);
    opacity: 0.5;
}

@keyframes spin {
    from {
        --angle: 0deg;
    }

    to {
        --angle: 360deg;
    }
}

h1 {
    text-align: center;
    color: #000000;
}

.calculator {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-top: 10px;
    color: #ffffff;
}

input {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
    box-sizing: border-box;
    border-radius: 4px;
    border: 1px solid #dddddd;
}

button {
    margin-top: 10px;
    padding: 10px;
    width: 100%;
    background-color: #007bff;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
}

p {
    margin-top: 10px;
    color: #ffffff;
}