/* Banner Section */
        .banner-section {
            position: relative;
            height: 280px;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .banner-image {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 1;
        }

        .banner-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0));
            z-index: 2;
        }

        .banner-content {
            position: relative;
            z-index: 3;
            text-align: center;
            color: var(--white);
            padding: 0 20px;
        }

        .banner-title {
            font-size: 42px;
            font-weight: 800;
            margin-bottom: 15px;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }

        .banner-subtitle {
            font-size: 18px;
            font-weight: 400;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto;
        }

        /* Newsletter Details Section */
        .newsletter-details-section {
            padding: 60px 0;
        }

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

        .back-button {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: var(--white);
            color: var(--secondary-color);
            border: 1px solid var(--secondary-color);
            border-radius: 8px;
            padding: 10px 16px;
            font-weight: 600;
            margin-bottom: 30px;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .back-button:hover {
            background-color: var(--secondary-color);
            color: var(--white);
        }

        .newsletter-details-container {
            background-color: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
            margin-bottom: 60px;
        }

        .newsletter-header {
            background: linear-gradient(135deg, #e73e3e 0%, #920707 100%);
            padding: 40px;
            text-align: center;
            color: var(--white);
            position: relative;
            overflow: hidden;
        }

        .newsletter-header::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
            animation: float 20s infinite linear;
        }

        @keyframes float {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .newsletter-icon {
            font-size: 64px;
            margin-bottom: 20px;
            z-index: 1;
            position: relative;
        }

        .newsletter-month {
            font-size: 24px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 10px;
            z-index: 1;
            position: relative;
        }

        .newsletter-title {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 10px;
            z-index: 1;
            position: relative;
            color: var(--white);
        }

        .newsletter-subtitle {
            font-size: 18px;
            opacity: 0.9;
            z-index: 1;
            position: relative;
            color: var(--white);
        }

        .newsletter-content {
            padding: 40px;
        }

        .newsletter-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 30px;
            flex-wrap: wrap;
            gap: 15px;
        }

        .newsletter-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-light);
            font-size: 16px;
        }

        .newsletter-meta-item i {
            color: var(--secondary-color);
        }

        .newsletter-type {
            font-size: 16px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 6px;
            background-color: rgba(36, 92, 61, 0.1);
            color: var(--secondary-color);
        }

        .newsletter-body {
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-dark);
            margin-bottom: 30px;
        }

        .newsletter-body h3 {
            font-size: 24px;
            margin: 30px 0 15px;
            color: var(--secondary-color);
        }

        .newsletter-body h4 {
            font-size: 20px;
            margin: 25px 0 12px;
            color: var(--text-dark);
        }

        .newsletter-body p {
            margin-bottom: 15px;
        }

        .newsletter-body blockquote {
            border-left: 4px solid var(--secondary-color);
            padding-left: 20px;
            margin: 20px 0;
            font-style: italic;
            color: var(--text-light);
            background-color: var(--bg-light);
            padding: 15px 20px;
            border-radius: 0 8px 8px 0;
        }

        .newsletter-body ul {
            margin-left: 20px;
            margin-bottom: 20px;
        }

        .newsletter-body li {
            margin-bottom: 8px;
        }

        .newsletter-body img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 20px 0;
        }

        .newsletter-highlight {
            background-color: rgba(36, 92, 61, 0.1);
            padding: 20px;
            border-radius: 8px;
            margin: 25px 0;
            border-left: 4px solid var(--secondary-color);
        }

        .newsletter-highlight h4 {
            color: var(--secondary-color);
            margin-bottom: 10px;
        }

        .newsletter-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            flex-wrap: wrap;
            gap: 20px;
        }

        .newsletter-share {
            display: flex;
            gap: 10px;
        }

        .share-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .share-facebook {
            background-color: #1877f2;
        }

        .share-facebook:hover {
            background-color: #166fe5;
        }

        .share-twitter {
            background-color: #1da1f2;
        }

        .share-twitter:hover {
            background-color: #1a91da;
        }

        .share-linkedin {
            background-color: #0077b5;
        }

        .share-linkedin:hover {
            background-color: #00669d;
        }

        .newsletter-actions {
            display: flex;
            gap: 15px;
        }

        .action-btn {
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            font-size: 16px;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary {
            background-color: var(--secondary-color);
            color: var(--white);
        }

        .btn-primary:hover {
            background-color: #451a1a;
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--secondary-color);
            border: 1px solid var(--secondary-color);
        }

        .btn-secondary:hover {
            background-color: var(--secondary-color);
            color: var(--white);
        }

        /* Related Newsletters Section */
        .related-newsletters-section {
            padding: 0 0 60px;
        }

        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
        }

        .view-all-link {
            color: var(--secondary-color);
            font-weight: 600;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 5px;
            transition: all 0.3s ease;
        }

        .view-all-link:hover {
            gap: 10px;
        }

        .related-newsletters-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }

        .related-newsletter-card {
            background-color: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
            text-decoration: none;
            color: inherit;
        }

        .related-newsletter-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 25px rgba(0, 0, 0, 0.1);
        }

        .related-newsletter-preview {
            height: 120px;
            background: linear-gradient(135deg, #5c2424 0%, #451a1a 100%);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            color: var(--white);
        }

        .related-newsletter-content {
            padding: 20px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .related-newsletter-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-dark);
            line-height: 1.3;
        }

        .related-newsletter-date {
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .related-newsletter-link {
            color: var(--secondary-color);
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 5px;
            margin-top: auto;
            transition: all 0.3s ease;
        }

        .related-newsletter-link:hover {
            gap: 10px;
        }

        /* Responsive */
        @media (max-width: 992px) {
            .related-newsletters-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .newsletter-content {
                padding: 25px;
            }
            
            .newsletter-title {
                font-size: 28px;
            }
            
            .related-newsletters-grid {
                grid-template-columns: 1fr;
            }
        }