/* ===========================
   Blog - Styles
   =========================== */

/* Hero Section */
.blog-hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    overflow: hidden;
}

.blog-hero .hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(102, 126, 234, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(118, 75, 162, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(56, 182, 255, 0.1) 0%, transparent 50%);
    animation: patternMove 15s ease-in-out infinite;
}

.hero-search {
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
}

.search-container {
    position: relative;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    display: flex;
    overflow: hidden;
    transition: all var(--transition-base);
}

.search-container:focus-within {
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.4);
}

.search-container input {
    flex: 1;
    padding: var(--spacing-lg) var(--spacing-xl);
    border: none;
    background: transparent;
    color: var(--white);
    font-size: 1.1rem;
    outline: none;
}

.search-container input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.search-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--white);
    padding: var(--spacing-lg) var(--spacing-xl);
    cursor: pointer;
    transition: all var(--transition-base);
}

.search-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.hero-categories {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.category-tag {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.category-tag:hover,
.category-tag.active {
    background: var(--white);
    color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(255, 255, 255, 0.3);
}

/* Featured Article */
.featured-article {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.featured-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    background: var(--cinza-platina);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.featured-image {
    position: relative;
    height: 500px;
    overflow: hidden;
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.featured-overlay {
    position: absolute;
    top: var(--spacing-lg);
    left: var(--spacing-lg);
}

.featured-badge {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.featured-content {
    padding: var(--spacing-3xl);
}

.featured-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.category-badge {
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.category-badge.transformacao-digital {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: var(--white);
}

.category-badge.ia-machine-learning {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    color: var(--white);
}

.category-badge.desenvolvimento {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    color: #2d3748;
}

.category-badge.seguranca {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
    color: #2d3748;
}

.category-badge.cloud {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
}

.reading-time,
.publish-date {
    font-size: 0.9rem;
    color: var(--texto-secundario);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.featured-title {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--azul-escuro);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.featured-excerpt {
    font-size: 1.1rem;
    color: var(--texto-secundario);
    line-height: 1.6;
    margin-bottom: var(--spacing-2xl);
}

.featured-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.featured-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--azul-escuro);
    margin-bottom: var(--spacing-xs);
}

.author-info p {
    font-size: 0.9rem;
    color: var(--texto-secundario);
    margin: 0;
}

/* Blog Grid Section */
.blog-grid-section {
    padding: var(--spacing-3xl) 0;
    background: var(--cinza-platina);
}

.section-filters {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.filter-btn {
    background: var(--white);
    border: 2px solid var(--cinza-medio);
    border-radius: 50px;
    padding: var(--spacing-sm) var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    font-weight: 600;
    color: var(--texto-secundario);
}

.filter-btn.active,
.filter-btn:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.3);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.blog-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    opacity: 1;
    transform: scale(1);
}

.blog-card.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
}

.blog-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.blog-card:hover .blog-image img {
    transform: scale(1.1);
}

.read-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--white);
    color: #667eea;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all var(--transition-base);
    font-size: 1.2rem;
}

.read-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

.blog-content {
    padding: var(--spacing-xl);
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.blog-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--azul-escuro);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.blog-content p {
    color: var(--texto-secundario);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.blog-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.author-mini {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.author-mini img {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    object-fit: cover;
}

.author-mini span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--azul-escuro);
}

.date {
    font-size: 0.8rem;
    color: var(--texto-secundario);
}

.load-more-section {
    text-align: center;
    margin-top: var(--spacing-3xl);
}

.load-more-btn {
    position: relative;
    overflow: hidden;
}

.load-more-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.load-more-btn:hover::before {
    left: 100%;
}

/* Newsletter Section */
.newsletter-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
}

.newsletter-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.newsletter-content {
    text-align: center;
}

.newsletter-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto var(--spacing-lg);
}

.newsletter-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.newsletter-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

.newsletter-form .form-group {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.newsletter-form input {
    flex: 1;
    padding: var(--spacing-lg);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 1rem;
    backdrop-filter: blur(10px);
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--white);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.newsletter-form button {
    white-space: nowrap;
}

.form-note {
    font-size: 0.9rem;
    opacity: 0.8;
    text-align: center;
}

.newsletter-benefits {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.benefit-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(5px);
}

.benefit-item i {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.benefit-item span {
    font-weight: 600;
}

/* Related Resources */
.related-resources {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

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

.resource-card {
    background: var(--cinza-platina);
    padding: var(--spacing-2xl);
    border-radius: 20px;
    text-align: center;
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: #667eea;
}

.resource-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    margin: 0 auto var(--spacing-lg);
    transition: all var(--transition-base);
}

.resource-card:hover .resource-icon {
    transform: scale(1.1) rotate(5deg);
}

.resource-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--azul-escuro);
    margin-bottom: var(--spacing-md);
}

.resource-card p {
    color: var(--texto-secundario);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.resource-link {
    color: #667eea;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-base);
}

.resource-link:hover {
    color: #764ba2;
    transform: translateX(5px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .featured-wrapper {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .featured-image {
        order: -1;
        height: 300px;
    }
    
    .featured-content {
        padding: var(--spacing-xl);
    }
    
    .featured-title {
        font-size: 1.8rem;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .newsletter-wrapper {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .newsletter-form .form-group {
        flex-direction: column;
    }
    
    .hero-categories {
        justify-content: center;
    }
    
    .section-filters {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        width: 100%;
        max-width: 200px;
    }
    
    .blog-hero .hero-actions {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero-categories {
        flex-direction: column;
        align-items: center;
    }
    
    .category-tag {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }
    
    .featured-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .blog-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .blog-footer {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: flex-start;
    }
    
    .newsletter-benefits {
        text-align: left;
    }
    
    .resources-grid {
        grid-template-columns: 1fr;
    }
}