:root {
    --bg-main: #050505;
    --silver-dark: #1a1a1a;
    --silver-border: #333333;
    --accent-white: #ffffff;
    --transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-main);
    font-family: 'Inter', sans-serif;
    color: var(--accent-white);
    min-height: 100vh;
}

/* Updated Container */
.container {
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Top Link Styling */
.container > a {
    display: inline-block;
    color: #666;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 2px;
    margin-bottom: 40px;
    transition: var(--transition);
    border-bottom: 1px solid transparent;
}

.container > a:hover {
    color: var(--accent-white);
    border-bottom: 1px solid var(--accent-white);
}

/* Modern Grid Layout */
main {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    width: 100%;
}

/* The Image Box */
.box {
    position: relative;
    aspect-ratio: 1 / 1; /* Perfectly square */
    width: 100%;
    height: auto; /* Overriding fixed 300px for responsiveness */
    overflow: hidden; 
    border: 1px solid var(--silver-border);
    background-color: #111;
    cursor: pointer;
    transition: var(--transition);
}

.box:hover {
    border-color: #666;
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

/* Image Transitions */
.box img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover; 
    transition: var(--transition);
    filter: grayscale(40%); /* Subtle silver/muted look */
}

.box .hover_img {
    opacity: 0;
    transform: scale(1.1); /* Pre-zoom for the second image */
}

/* Hover States */
.box:hover img:first-child {
    opacity: 0;
    transform: scale(1.1);
}

.box:hover .hover_img {
    opacity: 1;
    transform: scale(1);
    filter: grayscale(0%); /* Color pops on hover */
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
    main {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 15px;
    }
}