/* Seção de Notícias de Engenharia */
.engineering-news {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--muted) 0%, var(--silver-light) 100%);
    position: relative;
    overflow: hidden;
}

.engineering-news::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(142, 154, 175, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(52, 73, 94, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.news-header {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.news-header .section-title {
    color: var(--primary);
    margin-bottom: 1rem;
    position: relative;
}

.news-header .section-title::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, var(--accent), var(--primary-accent));
    border-radius: 2px;
}

.news-header .section-subtitle {
    max-width: 600px;
    margin: 0 auto;
    color: var(--muted-foreground);
    font-size: 1.125rem;
}

/* Filtros de Categoria */
.news-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.filter-btn {
    background: white;
    border: 2px solid var(--border);
    color: var(--muted-foreground);
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent), var(--primary-accent));
    transition: left 0.3s ease;
    z-index: -1;
}

.filter-btn:hover::before,
.filter-btn.active::before {
    left: 0;
}

.filter-btn:hover,
.filter-btn.active {
    color: white;
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(142, 154, 175, 0.3);
}

/* Grid de Notícias */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

/* Cards de Notícias */
.news-card {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.news-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--accent), var(--primary-accent));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.news-card:hover::before {
    transform: scaleX(1);
}

/* Imagem da Notícia */
.news-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.news-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: linear-gradient(135deg, var(--accent), var(--primary-accent));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 1.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Conteúdo da Notícia */
.news-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: var(--muted-foreground);
}

.news-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.news-date::before {
    content: '📅';
    font-size: 0.8rem;
}

.news-read-time {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    font-weight: 600;
}

.news-read-time::before {
    content: '⏱️';
    font-size: 0.8rem;
}

.news-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-summary {
    color: var(--muted-foreground);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Tags de Notícias */
.news-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.news-tag {
    background: var(--silver-light);
    color: var(--primary);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.news-tag:hover {
    background: var(--accent-soft);
    border-color: var(--accent);
}

/* Footer da Notícia */
.news-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.news-source {
    font-size: 0.8rem;
    color: var(--muted-foreground);
    font-weight: 500;
}

.news-link {
    color: var(--accent);
    font-weight: 600;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.news-link:hover {
    color: var(--primary-accent);
    gap: 0.75rem;
}

.news-link i {
    transition: transform 0.3s ease;
}

.news-link:hover i {
    transform: translateX(3px);
}

/* Footer da Seção */
.news-footer {
    text-align: center;
    position: relative;
    z-index: 1;
}

.news-footer .btn-secondary {
    background: linear-gradient(135deg, white, var(--silver-light));
    border: 2px solid var(--accent);
    color: var(--primary);
    padding: 1rem 2rem;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.news-footer .btn-secondary:hover {
    background: linear-gradient(135deg, var(--accent), var(--primary-accent));
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 15px rgba(142, 154, 175, 0.4);
    gap: 0.75rem;
}

/* Responsividade */
@media (max-width: 1024px) {
    .news-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .engineering-news {
        padding: 4rem 0;
    }
    
    .news-filters {
        gap: 0.5rem;
        margin-bottom: 2rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .news-image {
        height: 180px;
    }
    
    .news-content {
        padding: 1.25rem;
    }
    
    .news-title {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .news-filters {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 0.5rem;
    }
    
    .filter-btn {
        flex-shrink: 0;
        white-space: nowrap;
    }
    
    .news-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .news-footer {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
}

/* Animações de entrada */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.news-card.animate-on-scroll {
    animation: slideInUp 0.6s ease-out forwards;
}

/* Estados de carregamento */
.news-grid.loading {
    opacity: 0.7;
    pointer-events: none;
}

.news-grid.loading .news-card {
    transform: scale(0.98);
    transition: transform 0.3s ease;
}

/* Indicador de atualização */
.news-update-indicator {
    position: fixed;
    top: 100px;
    right: 2rem;
    background: linear-gradient(135deg, var(--accent), var(--primary-accent));
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.news-update-indicator.show {
    transform: translateX(0);
}

.news-update-indicator::before {
    content: '🔄';
    margin-right: 0.5rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}