@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&display=swap');

* {
    margin-top: 0px;
    margin-bottom: 100px;
    padding: 0;
    box-sizing: border-box;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    transform-style: preserve-3d;
}

.box-card {
    /* LARGER SIZE: Changed from 200px to 400px */
    width: 400px;
    height: 400px;
    font-family: "Instrument Serif", serif;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 1s ease;
    cursor: pointer;
    /* Starts spinning automatically on load */
    animation: rotate3d 12s infinite linear; 
}

/* Pauses the animation when a user hovers so they can read a specific side */
.box-card:hover {
    animation-play-state: paused;
}

.face {
    position: absolute;
    color: black;
    text-decoration: none;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem; /* Increased font size slightly to match the larger cube scale */
    font-weight: bold;
    backface-visibility: visible;
    border-radius: 12px;
    background: linear-gradient(145deg, #ffffff, #ffffff);
    border: 2px solid black;
    transition: all 0.3s ease;
    overflow: hidden;
}

.face::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    top: -100%;
    left: -100%;
    transition: all 0.5s ease;
    transform: translateZ(20px);
}

.face::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        transparent 0%,
        rgba(255, 255, 255, 0.05) 50%,
        transparent 100%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
}

.face:hover::before {
    top: 100%;
    left: 100%;
}

.face:hover::after {
    opacity: 1;
}

/* 3D TRANSLATIONS: Updated to 200px (half of the 400px width/height) */
.front {
    transform: translateZ(200px);
    border-color: black;
}

.back {
    transform: translateZ(-200px) rotateY(180deg);
    border-color: black;
}

.right {
    transform: translateX(200px) rotateY(90deg);
    border-color: black;
}

.left {
    transform: translateX(-200px) rotateY(-90deg);
    border-color: black;
}

.top {
    transform: translateY(-200px) rotateX(90deg);
    border-color: black;
}

.bottom {
    transform: translateY(200px) rotateX(-90deg);
    border-color: black;
}

/* Multi-axis keyframes to ensure no face gets hidden in a loop blindspot */
@keyframes rotate3d {
    0% {
        transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
    }
    50% {
        transform: rotateX(180deg) rotateY(360deg) rotateZ(90deg);
    }
    100% {
        transform: rotateX(360deg) rotateY(720deg) rotateZ(360deg);
    }
}

/* Responsive design for smaller screens */
@media (max-width: 768px) {
    .box-card {
        /* Adjusted mobile size to 250px so it doesn't overflow mobile screens */
        width: 250px;
        height: 250px;
    }
    
    .face {
        font-size: 1.8rem;
    }
    
    /* Translations updated to 125px (half of 250px) */
    .front { transform: translateZ(125px); }
    .back { transform: translateZ(-125px) rotateY(180deg); }
    .right { transform: translateX(125px) rotateY(90deg); }
    .left { transform: translateX(-125px) rotateY(-90deg); }
    .top { transform: translateY(-125px) rotateX(90deg); }
    .bottom { transform: translateY(125px) rotateX(-90deg); }
}