body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background: linear-gradient(45deg, black,#013f01, #030364, #37036c, #5e025e);
    background-size: 400% 400%;
    animation: disco 10s infinite linear;
}

@keyframes disco {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.calculator {
    background-color: rgba(255, 255, 255, 0.8);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.4);
    text-align: center;
    animation: pulse 1.5s infinite ease-in-out;
}

@keyframes pulse {
    0% { box-shadow: 0 0 20px rgba(0, 0, 0, 0.4); }
    50% { box-shadow: 0 0 40px rgba(0, 0, 0, 0.6); }
    100% { box-shadow: 0 0 20px rgba(0, 0, 0, 0.4); }
}

h1 {
    margin-bottom: 20px;
    color: #333333;
    animation: color-change 5s infinite linear;
}

@keyframes color-change {
    0% { color: #ff0000; }
    25% { color: #067006; }
    50% { color: #0000ff; }
    75% { color: #710571; }
    100% { color: #ff0000; }
}

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

input {
    padding: 10px;
    width: 200px;
    margin-right: 10px;
    border: 2px solid #cccccc;
    border-radius: 4px;
    animation: input-glow 2s infinite ease-in-out;
    outline: none;
}

@keyframes input-glow {
    0% { border-color: #000000; box-shadow: 0 0 5px #000000; }
    25% { border-color: #000000; box-shadow: 0 0 5px #000000; }
    50% { border-color: #000000; box-shadow: 0 0 5px #000000; }
    75% { border-color: #000000; box-shadow: 0 0 000000; }
    100% { border-color: #000000; box-shadow: 0 0 5px #000000; }
}

button {
    padding: 10px;
    background-color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    animation: button-glow 2s infinite ease-in-out;
}

@keyframes button-glow {
    0% { color: #ff0000; }
    25% { color: #000000; }
    50% { color: #0000ff; }
    75% { color: #ff00ff; }
    100% { color: #ff0000; }
}

button:hover {
    animation: button-hover 0.5s forwards;
}

@keyframes button-hover {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

#result {
    margin-top: 20px;
    font-size: 18px;
    color: #333333;
    animation: text-fade 5s infinite;
}

@keyframes text-fade {
    0% { color: #ff0000; }
    25% { color: #00ff00; }
    50% { color: #0000ff; }
    75% { color: #ff00ff; }
    100% { color: #ff0000; }
}