/* Color Options Grid with Real Image Sprites */
.colors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1.5rem;
    text-align: center;
}

.color-card {
    background: rgba(255, 255, 255, 0.03);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease;
    cursor: pointer;
    /* Interaction hint */
}

.color-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-teal);
    box-shadow: 0 5px 15px rgba(0, 194, 203, 0.1);
}

.color-swatch {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 1rem auto;
    border: 3px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);

    /* Sprite Background */
    background-image: url('../assets/chart-final.jpg');

    /* OPTIMAL ZOOM: 1200px 600px (2x Original) */
    background-size: 1200px 600px;
    background-repeat: no-repeat;
}

.color-card h3 {
    color: var(--text-white);
    font-size: 1rem;
    margin: 0;
    font-weight: 500;
}

/* Sprite Positions (Calculated for 200px cells centered in 100px div) */
/* Formula: -50 - (Index * 200) */

/* Row 1 */
.bg-autumn-brown {
    background-position: -50px -50px;
}

.bg-cabin-fever {
    background-position: -250px -50px;
}

.bg-coyote {
    background-position: -450px -50px;
}

.bg-orbit {
    background-position: -650px -50px;
}

.bg-outback {
    background-position: -850px -50px;
}

.bg-safari {
    background-position: -1050px -50px;
}

/* Row 2 */
.bg-creekbed {
    background-position: -50px -250px;
}

.bg-domino {
    background-position: -250px -250px;
}

.bg-feather-gray {
    background-position: -450px -250px;
}

.bg-shoreline {
    background-position: -650px -250px;
}

.bg-stargazer {
    background-position: -850px -250px;
}

.bg-stonewash {
    background-position: -1050px -250px;
}

/* Row 3 */
.bg-glacier {
    background-position: -50px -450px;
}

.bg-gravel {
    background-position: -250px -450px;
}

.bg-nightfall {
    background-position: -450px -450px;
}

.bg-tidal-wave {
    background-position: -650px -450px;
}

.bg-wombat {
    background-position: -850px -450px;
}


/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s;
}

.modal-content {
    margin: 10vh auto;
    padding: 20px;
    width: 95%;
    max-width: 1100px;
    /* Increased to accommodate larger image */
    background: transparent;
    text-align: center;
    position: relative;
    animation: zoomIn 0.3s;
}

.close-modal {
    position: absolute;
    top: -20px;
    right: 0;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.close-modal:hover {
    color: var(--primary-teal);
}

.modal-image {
    width: 100%;
    max-width: 600px;
    max-height: 85vh;
    /* Keep it on screen */
    object-fit: contain;
    /* Ensure full image is seen */
    border: 5px solid var(--primary-teal);
    box-shadow: 0 0 50px rgba(0, 194, 203, 0.2);
    margin: 0 auto;
    display: block;
}

#modal-title {
    color: white;
    font-size: 2rem;
    margin-top: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

@keyframes zoomIn {
    from {
        transform: scale(0.5);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}