/* Frontend Styles */
.newsletter-grid-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.newsletter-grid {
    display: grid;
    gap: 30px;
    margin-bottom: 40px;
}

.newsletter-grid.columns-1 {
    grid-template-columns: 1fr;
}

.newsletter-grid.columns-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.newsletter-grid.columns-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.newsletter-grid.columns-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.newsletter-item {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e1e5e9;
    animation: fadeInUp 0.6s ease-out;
}

.newsletter-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.newsletter-image {
    position: relative;
    width: 100%;
    height: 510px; /* A4 ratio approximation */
    background: #091C3C;
    overflow: hidden;
}

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

.newsletter-item:hover .newsletter-image img {
    transform: scale(1.05);
}

.newsletter-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 510px;
    background: linear-gradient(135deg, #091C3C 0%, #0074E4 100%);
    color: white;
    font-size: 3rem;
}

.newsletter-content {
    padding: 20px;
}

.newsletter-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 10px 0;
    color: #2d3748;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.newsletter-date {
    color: #718096;
    font-size: 0.875rem;
    margin: 0 0 20px 0;
    font-weight: 500;
}

.newsletter-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.view-btn {
    flex: 1;
    background: linear-gradient(135deg, #091C3C 0%, #0074E4 100%);
    color: white;
    padding: 12px 20px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.view-btn:hover {
    background: linear-gradient(135deg, #00132d 0%, #005bc0 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 116, 228, 0.4);
    color: white;
    text-decoration: none;
}

.download-btn {
    background: #0074E4;
    color: white;
    padding: 12px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
}

.download-btn:hover {
    background: #005bc0;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 116, 228, 0.4);
    color: white;
    text-decoration: none;
}

.download-icon {
    font-size: 1.2rem;
    font-weight: bold;
}

.newsletter-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.page-link {
    padding: 10px 16px;
    background: #fff;
    color: #4a5568;
    text-decoration: none;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    min-width: 44px;
    text-align: center;
}

.page-link:hover {
    background: #0074E4;
    color: white;
    border-color: #0074E4;
    text-decoration: none;
    transform: translateY(-2px);
}

.page-link.current {
    background: #0074E4;
    color: white;
    border-color: #0074E4;
}

/* Responsive Design */
@media (max-width: 768px) {
    .newsletter-item {
        max-width: 100% !important;
        width: 100%;
    }
    
    .newsletter-grid-container {
        padding: 15px;
    }

    .newsletter-grid {
        grid-template-columns: repeat(2, 1fr); /* Changed from 2fr to repeat(2, 1fr) for 2 columns */
        gap: 15px; /* Reduced gap for better mobile spacing */
    }

    .newsletter-image {
        height: auto; /* Changed from 100% to auto to show full image */
        min-height: 200px; /* Minimum height to maintain aspect ratio */
    }

    .newsletter-image img {
        object-fit: contain; /* Changed from cover to contain to show full image */
    }

    .newsletter-placeholder {
        height: auto;
        min-height: 200px;
        font-size: 2rem; /* Reduced font size for mobile */
    }

    .newsletter-content {
        padding: 15px;
    }

    .newsletter-title {
        font-size: 1.1rem;
    }

    .newsletter-actions {
        flex-direction: column;
        gap: 10px;
    }

    .download-btn {
        align-self: center;
    }

    .newsletter-pagination {
        gap: 5px;
    }

    .page-link {
        padding: 8px 12px;
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .newsletter-grid-container {
        padding: 10px;
    }

    .newsletter-grid {
        gap: 10px; /* Further reduced gap for very small screens */
    }

    .newsletter-image {
        min-height: 180px; /* Smaller minimum height for very small screens */
    }

    .newsletter-placeholder {
        min-height: 180px;
        font-size: 1.5rem;
    }

    .newsletter-content {
        padding: 12px;
    }

    .view-btn {
        padding: 10px 16px;
        font-size: 0.8rem;
    }

    .download-btn {
        min-width: 40px;
        height: 40px;
    }
}

/* Loading States */
.newsletter-grid.loading {
    opacity: 0.6;
    pointer-events: none;
}

.newsletter-item.loading {
    opacity: 0.5;
}

/* Animation for new items */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Print Styles */
@media print {
    .newsletter-actions,
    .newsletter-pagination {
        display: none;
    }

    .newsletter-item {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}