/* Books Page Styles */
.main-content {
    padding: 40px 0;
    min-height: calc(100vh - 300px);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.books-header {
    text-align: center;
    margin-bottom: 50px;
    animation: fadeInUp 0.8s ease-out;
}

.books-header h1 {
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: 10px;
    font-weight: 700;
}

.books-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.book-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 20px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.05);
    overflow: hidden;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1),
                opacity 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex;
    flex-direction: column;
    animation: fadeInUp 0.8s ease-out backwards;
}

.book-card:hover {
    transform: translateY(-10px);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(255, 255, 255, 0.5);
}

.book-cover {
    height: 380px;
    background-color: rgba(255, 255, 255, 0.5);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 20px;
}

.book-cover canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    box-shadow: 
        5px 5px 15px rgba(0, 0, 0, 0.15),
        -2px 0 5px rgba(255, 255, 255, 0.8);
    transition: transform 0.4s ease;
    border-radius: 4px;
}

.book-card:hover .book-cover canvas {
    transform: scale(1.05) rotateY(-5deg);
}

.loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    color: var(--primary-color);
    z-index: 10;
}

.book-info {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.4);
}

.book-info h3 {
    font-size: 1.25rem;
    margin: 0 0 8px 0;
    color: var(--text-color);
    line-height: 1.4;
    font-weight: 600;
}

.book-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0 0 25px 0;
    font-weight: 500;
}

.book-actions {
    margin-top: auto;
    display: flex;
    gap: 12px;
}

.btn-sm {
    padding: 10px 18px;
    font-size: 0.9rem;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.btn-primary {
    background: var(--gradient-primary);
    color: rgb(65, 65, 218);
    border: none;
    box-shadow: 0 4px 10px rgba(161, 161, 161, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(60, 83, 186, 0.4);
}

.btn-secondary {
    background: #f0f4f8;
    color: #000000;
    font-weight: 600;
    border: none;
    box-shadow: 
        4px 4px 8px rgba(163, 177, 198, 0.3), 
        -4px -4px 8px rgba(255, 255, 255, 0.8);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    color: var(--primary-color);
    box-shadow: 
        6px 6px 12px rgba(163, 177, 198, 0.4), 
        -6px -6px 12px rgba(255, 255, 255, 0.9);
}

@media (max-width: 768px) {
    .books-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }
    
    .book-cover {
        height: 300px;
    }
}

/* ===== Gonit Ongon 2.0 de-slop (fixes broken --gradient-primary btn too) ===== */
.book-card {
    background: var(--color-surface);
    -webkit-backdrop-filter: none; backdrop-filter: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.book-card:hover { box-shadow: var(--shadow-pop); border-color: var(--color-accent); }
.book-cover { background-color: var(--color-surface-2); }
.book-info { background: transparent; }
.book-info h3 { color: var(--color-ink); }
.loading-spinner { color: var(--color-accent); }
.btn-sm { border-radius: var(--radius-md); }
.btn-primary {
    background: var(--color-accent); color: #fff; border: none; box-shadow: var(--btn-inset);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--btn-inset), var(--shadow-accent-hover); }
.btn-secondary {
    background: var(--color-surface); color: var(--color-ink);
    border: 1px solid var(--color-border-strong); box-shadow: var(--btn-inset-light);
}
.btn-secondary:hover { background: var(--color-surface-2); color: var(--color-accent); border-color: var(--color-accent); box-shadow: var(--shadow-sm); }