:root {
    --background-color: #333333;
    --text-color: #ffffff;
    --link-color: #6fa1e0;
    --primary-accent-color: #ff6f61;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    padding: 0;
}

form {
    margin-top: 20px;
}

input {
    padding: 12px;
    margin-right: 12px;
    border: 2px solid var(--primary-accent-color);
    border-radius: 8px;
    font-size: 18px;
    background-color: transparent;
    color: var(--text-color);
}

button {
    padding: 12px 24px;
    background-color: var(--primary-accent-color);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #ff9735;
}

#result {
    margin-top: 20px;
    font-weight: bold;
    font-size: 24px;
    color: var(--primary-accent-color);
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a {
    color: var(--link-color);
    text-decoration: none;
    position: relative;
}

a::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--link-color);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease-in-out;
}

a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}