:root {
    --color-primary: #20B2AA; /* Light Sea Green */
    --color-secondary: #5F9EA0; /* Cadet Blue */
    --color-accent: #48D1CC; /* Medium Turquoise */
    --color-background: #F0F8FF; /* Alice Blue */
    --color-surface: #FFFFFF;
    --color-text: #2F4F4F; /* Dark Slate Gray */
    --color-text-light: #607D8B;
    --color-border: #B0E0E6; /* Powder Blue */
    --radius-large: 24px;
    --radius-medium: 16px;
    --shadow-soft: 0 8px 32px -8px rgba(0, 0, 0, 0.08);
}

body {
    background-color: var(--color-background);
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
    padding: 1rem;
}

.product-gallery {
    position: relative;
    background: var(--color-surface);
    border-radius: var(--radius-large);
    padding: 1.5rem;
    box-shadow: var(--shadow-soft);
}

.main-image {
    width: 100%;
    aspect-ratio: 1;
    background: var(--color-background);
    border-radius: var(--radius-medium);
    overflow: hidden;
    margin-bottom: 1rem;
    position: relative;
}

.main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s ease;
}

.main-image img:not([src]), 
.main-image img[src=""], 
.main-image img[src*="broken-image"],
.thumbnail-grid img:not([src]), 
.thumbnail-grid img[src=""], 
.thumbnail-grid img[src*="broken-image"] {
    background-image: url('/images/placeholder.jpg');
    background-size: cover;
    background-position: center;
}

.thumbnail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 0.75rem;
}

.thumbnail-grid img {
    aspect-ratio: 1;
    width: 100%;
    object-fit: cover;
    border-radius: var(--radius-medium);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    background-color: var(--color-background);
}

.thumbnail-grid img:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.thumbnail-grid img.active {
    border-color: var(--color-primary);
}

.product-info {
    background: var(--color-surface);
    border-radius: var(--radius-large);
    padding: 2rem;
    box-shadow: var(--shadow-soft);
}

.product-meta {
    margin: 1.5rem 0;
    color: var(--color-text-light);
}

.product-meta span {
    display: inline-block;
    margin-right: 1.5rem;
    margin-bottom: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--color-background);
    border-radius: var(--radius-medium);
    font-size: 0.9rem;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.feature-list li {
    margin-bottom: 0.75rem;
    padding: 0.75rem 1rem 0.75rem 2rem;
    position: relative;
    background: var(--color-background);
    border-radius: var(--radius-medium);
    transition: transform 0.2s ease;
}

.feature-list li:hover {
    transform: translateX(4px);
}

.feature-list li:before {
    content: "✓";
    position: absolute;
    left: 0.75rem;
    color: var(--color-primary);
}

.product-actions {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
}

.product-actions .primary-button,
.product-actions .secondary-button {
    flex: 1;
    padding: 1rem;
    border-radius: var(--radius-medium);
    text-align: center;
    transition: all 0.3s ease;
}

.primary-button {
    background: var(--color-primary);
    color: white;
    border: none;
}

.primary-button:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.secondary-button {
    background: var(--color-background);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.secondary-button:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.specs-group {
    background: var(--color-surface);
    padding: 1.5rem;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-soft);
}

.specs-group h3 {
    margin-bottom: 1.5rem;
    color: var(--color-text);
    font-size: 1.25rem;
}

.specs-group ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.specs-group li {
    margin-bottom: 0.75rem;
    padding: 0.75rem 1rem 0.75rem 2rem;
    position: relative;
    background: var(--color-background);
    border-radius: var(--radius-medium);
    color: var(--color-text-light);
    transition: transform 0.2s ease;
}

.specs-group li:hover {
    transform: translateX(4px);
}

.specs-group li:before {
    content: "•";
    position: absolute;
    left: 0.75rem;
    color: var(--color-accent);
}

@media (max-width: 768px) {
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .thumbnail-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    }
}