/* Base Variables */
:root {
    --bg-color: #ffffff;
    --bg-secondary: #f9f9f9;
    --text-primary: #333333;
    --text-secondary: #666666;
    --accent-gold: #C5A059;
    --primary-teal: #345959;
    --card-bg: #ffffff;
    --card-border: #f0f0f0;
    --hover-shadow: 0 20px 40px rgba(52, 89, 89, 0.08);
    --transition-speed: 0.5s;
    --border-radius: 0px; /* Sharp, modern minimalist edges */
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Header */
.header {
    text-align: center;
    padding: 6rem 2rem 4rem;
    position: relative;
}

.brand-logo {
    max-width: 250px;
    height: auto;
    margin: 0 auto 1.5rem auto;
    display: block;
}

.header h1 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
    color: var(--primary-teal);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.header h1::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--accent-gold);
    margin: 1.5rem auto 0;
}

.header p {
    font-size: clamp(1rem, 1.5vw, 1.1rem);
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: 1px;
}

/* Catalog Grid */
.catalog-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4rem;
    padding: 2rem 5%;
    max-width: 1400px;
    margin: 0 auto;
    flex-grow: 1;
}

/* Book Cards */
.book-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: transform var(--transition-speed) ease, 
                box-shadow var(--transition-speed) ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
}

.book-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--hover-shadow);
}

.book-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.image-wrapper {
    position: relative;
    width: 100%;
    padding-top: 130%; /* Aspect ratio roughly matching a book cover */
    overflow: hidden;
    background-color: var(--bg-secondary);
}

.image-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.book-card:hover .image-wrapper img {
    transform: scale(1.05);
}

/* Overlay on Hover */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(52, 89, 89, 0.85); /* Primary Teal with opacity */
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
}

.book-card:hover .overlay {
    opacity: 1;
}

.view-text {
    color: #ffffff;
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 1rem 2rem;
    border: 1px solid var(--accent-gold);
    background: transparent;
    transform: translateY(20px);
    transition: transform var(--transition-speed) ease, background 0.3s ease, color 0.3s ease;
}

.book-card:hover .view-text {
    transform: translateY(0);
}

.view-text:hover {
    background: var(--accent-gold);
    color: #ffffff;
}

/* Book Info Section */
.book-info {
    padding: 2rem 1.5rem;
    text-align: center;
    background-color: var(--card-bg);
}

.book-info h2 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    color: var(--primary-teal);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.book-info p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Footer */
.footer {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid var(--card-border);
    margin-top: 5rem;
    background-color: var(--bg-secondary);
}

/* Responsive adjustments */
@media (max-width: 900px) {
    .catalog-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
        padding: 2rem 5%;
    }
}

@media (max-width: 768px) {
    .catalog-container {
        gap: 2.5rem;
    }
    .header {
        padding: 4rem 1rem 2rem;
    }
    .header h1 {
        font-size: 2.5rem;
    }
    .brand-logo {
        max-width: 200px;
    }
}

@media (max-width: 600px) {
    .catalog-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 1rem 5%;
    }
    .header h1 {
        font-size: 1.8rem;
    }
    .header p {
        font-size: 0.95rem;
    }
    .brand-logo {
        max-width: 160px;
        margin-bottom: 1rem;
    }
    .book-info {
        padding: 1.5rem 1rem;
    }
    .view-text {
        font-size: 0.9rem;
        padding: 0.8rem 1.5rem;
    }
}