/* ===========================================
   FSTECH BLOG DINÂMICO - CSS ESPECÍFICO
   MVP (Minimum Viable Product)
   Data: 13/09/2025
   =========================================== */

/* Variáveis CSS específicas do blog */
:root {
    --blog-card-bg: rgba(15, 15, 15, 0.6);
    --blog-card-border: rgba(255, 255, 255, 0.03);
    --blog-card-hover: rgba(20, 107, 255, 0.1);
    --blog-meta-color: rgba(255, 255, 255, 0.6);
    --blog-excerpt-color: rgba(255, 255, 255, 0.7);
    --blog-category-bg: rgba(20, 107, 255, 0.2);
    --blog-search-bg: rgba(20, 20, 20, 0.8);
}

/* ===========================================
   LAYOUT PRINCIPAL DO BLOG
   =========================================== */

.blog-hero {
    min-height: 50vh;
    padding: 8rem 2rem 6rem;
}

.blog-main-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-3xl);
    margin-top: var(--spacing-2xl);
}

.blog-posts-area {
    flex: 1;
}

.blog-sidebar {
    position: sticky;
    top: var(--spacing-xl);
    height: fit-content;
}

/* ===========================================
   BARRA DE BUSCA
   =========================================== */

.blog-search-container {
    margin-bottom: var(--spacing-2xl);
    display: flex;
    justify-content: center;
}

.blog-search-form {
    display: flex;
    background: var(--blog-search-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border: 1px solid var(--blog-card-border);
    max-width: 500px;
    width: 100%;
}

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

.blog-search-input::placeholder {
    color: var(--blog-meta-color);
}

.blog-search-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--accent-500), var(--accent-cyan));
    border: none;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
}

.blog-search-btn:hover {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-500));
    transform: scale(1.05);
}

/* ===========================================
   FILTROS DE CATEGORIA
   =========================================== */

.blog-categories-filter {
    margin-bottom: var(--spacing-2xl);
}

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

.category-chip {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--blog-card-bg);
    border: 1px solid var(--blog-card-border);
    border-radius: var(--radius-md);
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    backdrop-filter: blur(10px);
    font-size: 0.875rem;
    font-weight: 500;
}

.category-chip:hover {
    background: var(--blog-card-hover);
    border-color: var(--accent-500);
    transform: translateY(-2px);
}

.category-chip.active {
    background: linear-gradient(135deg, var(--accent-500), var(--accent-cyan));
    border-color: var(--accent-500);
    color: white;
}

.chip-count {
    background: rgba(255, 255, 255, 0.2);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.category-chip.active .chip-count {
    background: rgba(255, 255, 255, 0.3);
}

/* ===========================================
   POSTS EM DESTAQUE
   =========================================== */

.featured-posts-section {
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: white;
}

.section-title i {
    color: var(--accent-500);
}

.featured-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.featured-post-card {
    background: var(--blog-card-bg);
    border: 1px solid var(--blog-card-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.featured-post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(20, 107, 255, 0.3);
    border-color: var(--accent-500);
}

.featured-post-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

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

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

.featured-post-content {
    padding: var(--spacing-lg);
}

.featured-post-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: var(--spacing-md) 0;
}

.featured-post-title a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.featured-post-title a:hover {
    color: var(--accent-500);
}

.featured-post-excerpt {
    color: var(--blog-excerpt-color);
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
}

.featured-post-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--blog-meta-color);
}

/* ===========================================
   GRID DE POSTS
   =========================================== */

.posts-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.posts-section-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: white;
}

.posts-count {
    color: var(--blog-meta-color);
    font-size: 0.875rem;
}

.blog-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.blog-post-card {
    background: var(--blog-card-bg);
    border: 1px solid var(--blog-card-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.blog-post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(20, 107, 255, 0.2);
    border-color: rgba(20, 107, 255, 0.3);
}

.post-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

/* Quando não há imagem, não mostrar o container */
.blog-post-card:not(:has(.post-image img)) .post-image {
    display: none;
}

/* Alternativa para browsers sem suporte a :has() */
.post-image:empty {
    display: none;
}

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

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

.post-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 250px;
}

/* ===========================================
   CATEGORIAS E META DOS POSTS
   =========================================== */

.post-categories {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.post-category {
    padding: 4px 8px;
    background: var(--blog-category-bg);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.post-category:hover {
    opacity: 0.8;
    transform: scale(1.05);
}

.post-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.post-title a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-title a:hover {
    color: var(--accent-500);
}

.post-excerpt {
    color: var(--blog-excerpt-color);
    line-height: 1.6;
    margin-bottom: auto;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex-grow: 1;
    font-size: 0.95rem;
}

.post-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--blog-meta-color);
}

.post-date,
.post-views {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.read-more-btn {
    background: linear-gradient(135deg, var(--accent-500), var(--accent-cyan));
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-top: 0;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 500;
    margin-top: auto;
    align-self: flex-start;
}

.read-more-btn:hover {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-500));
    transform: translateX(5px);
}

/* ===========================================
   PAGINAÇÃO
   =========================================== */

.blog-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-3xl);
    padding: var(--spacing-xl) 0;
}

.pagination-btn,
.pagination-number {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--blog-card-bg);
    border: 1px solid var(--blog-card-border);
    border-radius: var(--radius-md);
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.pagination-btn:hover,
.pagination-number:hover {
    background: var(--blog-card-hover);
    border-color: var(--accent-500);
    transform: translateY(-2px);
}

.pagination-number.active {
    background: linear-gradient(135deg, var(--accent-500), var(--accent-cyan));
    border-color: var(--accent-500);
}

.pagination-numbers {
    display: flex;
    gap: var(--spacing-xs);
}

/* ===========================================
   SIDEBAR
   =========================================== */

.sidebar-widget {
    background: var(--blog-card-bg);
    border: 1px solid var(--blog-card-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    backdrop-filter: blur(10px);
}

.widget-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: white;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.widget-title i {
    color: var(--accent-500);
}

/* Posts Populares */
.popular-posts-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.popular-post-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.popular-post-number {
    background: linear-gradient(135deg, var(--accent-500), var(--accent-cyan));
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.popular-post-content {
    flex: 1;
}

.popular-post-title {
    font-size: 0.925rem;
    margin-bottom: var(--spacing-xs);
}

.popular-post-title a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.popular-post-title a:hover {
    color: var(--accent-500);
}

.popular-post-meta {
    font-size: 0.75rem;
    color: var(--blog-meta-color);
}

/* Newsletter Widget */
.newsletter-widget {
    background: linear-gradient(135deg, rgba(20, 107, 255, 0.1), rgba(0, 204, 255, 0.1));
    border-color: rgba(20, 107, 255, 0.2);
}

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

.newsletter-form input {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--blog-card-border);
    border-radius: var(--radius-md);
    color: white;
    outline: none;
    transition: border-color 0.3s ease;
}

.newsletter-form input:focus {
    border-color: var(--accent-500);
}

.newsletter-form input::placeholder {
    color: var(--blog-meta-color);
}

/* CTA Widget */
.cta-widget {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(20, 107, 255, 0.1));
    border-color: rgba(16, 185, 129, 0.2);
    text-align: center;
}

.tech-button-small {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.875rem;
}

/* ===========================================
   PÁGINA SEM POSTS
   =========================================== */

.no-posts-found {
    text-align: center;
    padding: var(--spacing-3xl);
    background: var(--blog-card-bg);
    border: 1px solid var(--blog-card-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.no-posts-icon {
    font-size: 4rem;
    color: var(--blog-meta-color);
    margin-bottom: var(--spacing-lg);
}

.no-posts-found h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: white;
}

.no-posts-found p {
    color: var(--blog-excerpt-color);
    margin-bottom: var(--spacing-xl);
    line-height: 1.5;
}

/* ===========================================
   RESPONSIVIDADE
   =========================================== */

@media (max-width: 1024px) {
    .blog-main-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .blog-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .blog-hero {
        padding: 6rem 1rem 4rem;
    }

    .blog-posts-grid,
    .featured-posts-grid {
        grid-template-columns: 1fr;
    }

    .posts-header {
        flex-direction: column;
        text-align: center;
    }

    .blog-pagination {
        flex-wrap: wrap;
    }

    .pagination-numbers {
        order: -1;
        width: 100%;
        justify-content: center;
        margin-bottom: var(--spacing-md);
    }

    .category-chips {
        justify-content: center;
    }

    .post-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .blog-search-form {
        margin: 0 var(--spacing-md);
    }

    .featured-post-content,
    .post-content {
        padding: var(--spacing-md);
    }

    .sidebar-widget {
        padding: var(--spacing-md);
    }

    .popular-post-item {
        flex-direction: column;
        text-align: center;
    }

    .popular-post-number {
        align-self: center;
    }
}

/* ===========================================
   ANIMAÇÕES E EFEITOS
   =========================================== */

.blog-post-card,
.featured-post-card,
.sidebar-widget {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
    transform: translateY(20px);
}

.blog-post-card:nth-child(1) { animation-delay: 0.1s; }
.blog-post-card:nth-child(2) { animation-delay: 0.2s; }
.blog-post-card:nth-child(3) { animation-delay: 0.3s; }
.blog-post-card:nth-child(4) { animation-delay: 0.4s; }
.blog-post-card:nth-child(5) { animation-delay: 0.5s; }
.blog-post-card:nth-child(6) { animation-delay: 0.6s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid var(--accent-500);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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