* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: Arial, sans-serif;
}

body {
    background-image: url("bg.png");  
    background-size: cover;
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

canvas {
    position: absolute;  
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid white;
    background: transparent; 
    z-index: -1; 
}

button {
    position: relative;
    border: none;
    background: transparent;
    padding: 0;
    cursor: pointer;
    outline-offset: 4px;
    transition: filter 250ms;
    user-select: none;
    touch-action: manipulation;
}

.shadow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    background: hsl(0deg 0% 0% / 0.25);
    will-change: transform;
    transform: translateY(2px);
    transition: transform 600ms cubic-bezier(.3, .7, .4, 1);
}

.edge {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    background: linear-gradient(
        to left,
        hsl(340deg 100% 16%) 0%,
        hsl(340deg 100% 32%) 8%,
        hsl(340deg 100% 32%) 92%,
        hsl(340deg 100% 16%) 100%
    );
}

.front {
    display: block;
    position: relative;
    padding: 12px 27px;
    border-radius: 12px;
    font-size: 1.1rem;
    color: white;
    background: hsl(345deg 100% 47%);
    will-change: transform;
    transform: translateY(-4px);
    transition: transform 600ms cubic-bezier(.3, .7, .4, 1);
}

button:hover {
    filter: brightness(110%);
}

button:hover .front {
    transform: translateY(-6px);
    transition: transform 250ms cubic-bezier(.3, .7, .4, 1.5);
}

button:active .front {
    transform: translateY(-2px);
    transition: transform 34ms;
}

button:hover .shadow {
    transform: translateY(4px);
    transition: transform 250ms cubic-bezier(.3, .7, .4, 1.5);
}

button:active .shadow {
    transform: translateY(1px);
    transition: transform 34ms;
}

button:focus:not(:focus-visible) {
    outline: none;
}