/* Blog Template Styles */

/* Sistema di Tag */
:root {
    /* Tag backgrounds con opacity 0.1 */
    --tag-bg-ai: rgba(94, 53, 177, 0.1);
    --tag-bg-seo: rgba(46, 125, 50, 0.1);
    --tag-bg-guide: rgba(26, 35, 126, 0.1);
    --tag-bg-content: rgba(191, 54, 12, 0.1);
    --tag-bg-tools: rgba(0, 77, 64, 0.1);
    --tag-bg-web: rgba(0, 131, 143, 0.1);
    --tag-bg-analytics: rgba(198, 40, 40, 0.1);
    --tag-bg-news: rgba(255, 111, 0, 0.1);
    --tag-bg-research: rgba(74, 20, 140, 0.1);
    --tag-bg-development: rgba(25, 118, 210, 0.1);

    /* Tag text colors - WCAG AA compliant */
    --tag-text-ai: #5E35B1;
    --tag-text-seo: #2E7D32;
    --tag-text-guide: #1A237E;
    --tag-text-content: #BF360C;
    --tag-text-tools: #004D40;
    --tag-text-web: #006064;
    --tag-text-analytics: #C62828;
    --tag-text-news: #E65100;
    --tag-text-research: #4A148C;
    --tag-text-development: #1976D2;
}

/* Container Blog */
.blog-container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: var(--space-md) auto;
    padding: 0 var(--container-padding);
}

/* Introduzione Blog */
.blog-intro {
    text-align: center;
    margin-bottom: var(--space-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.blog-intro p {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-normal);
    color: var(--color-gray-500);
}

/* Container Filtri */
.filters-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

/* Categorie principali (Tutti, SEO, AI, Tech) */
.category-filters {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: 0;
    flex-wrap: wrap;
}

.category-pill {
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    background: white;
    color: var(--color-text);
    text-decoration: none;
    font-size: var(--font-size-sm);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-normal);
}

.category-pill:hover,
.category-pill:focus-visible,
.category-pill.active {
  background: var(--color-primary);
  color: var(--color-white) !important; 
  outline: none;
  transform: translateY(-1px);
}

/* Filtri per formato (Guide, News, Tools) */
.format-filters {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.format-pill {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    background: var(--color-gray-100);
    color: var(--color-text);
    text-decoration: none;
    font-size: var(--font-size-sm);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-normal);
}

.format-pill:hover {
    background: var(--color-gray-200);
}

.format-pill:hover,
.format-pill:focus-visible,
.format-pill.active {
  background: var(--color-accent); 
  color: var(--color-white) !important;
  outline: none;
  transform: translateY(-1px);
}

.format-icon {
    font-size: 1.1em;
    line-height: 1;
}


/* Grid dei Post */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

/* Card Design */
.blog-card {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
    position: relative;
}

.blog-card-link {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.blog-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.card-image {
    position: relative;
    padding-top: 52%;
    overflow: hidden;
}

.card-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

/* Tag Styles */
.tag-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-normal);
    margin: 0.125rem;
    z-index: 2;
    position: relative;
}

/* Individual Tag Styles */
.tag-badge[data-tag="ai"] {
    background-color: var(--tag-bg-ai);
    color: var(--tag-text-ai);
}

.tag-badge[data-tag="seo"] {
    background-color: var(--tag-bg-seo);
    color: var(--tag-text-seo);
}

.tag-badge[data-tag="guide"] {
    background-color: var(--tag-bg-guide);
    color: var(--tag-text-guide);
}

.tag-badge[data-tag="content"] {
    background-color: var(--tag-bg-content);
    color: var(--tag-text-content);
}

.tag-badge[data-tag="tools"] {
    background-color: var(--tag-bg-tools);
    color: var(--tag-text-tools);
}

.tag-badge[data-tag="web"] {
    background-color: var(--tag-bg-web);
    color: var(--tag-text-web);
}

.tag-badge[data-tag="analytics"] {
    background-color: var(--tag-bg-analytics);
    color: var(--tag-text-analytics);
}

.tag-badge[data-tag="news"] {
    background-color: var(--tag-bg-news);
    color: var(--tag-text-news);
}

.tag-badge[data-tag="research"] {
    background-color: var(--tag-bg-research);
    color: var(--tag-text-research);
}

.tag-badge[data-tag="development"] {
    background-color: var(--tag-bg-development);
    color: var(--tag-text-development);
}

.tag-badge:hover {
    transform: translateY(-1px);
    filter: brightness(0.95);
}

/* Card Content */
.card-content {
    padding: var(--space-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.meta-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: 0.75rem;
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
}

.meta-info-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.meta-icon {
    width: 14px;
    height: 14px;
    opacity: 0.5;
}

.card-title {
    font-size: var(--font-size-lg);
    margin-bottom: 0.75rem;
    line-height: var(--line-height-tight);
}

.card-excerpt {
    color: var(--color-gray-500);
    font-size: var(--font-size-md);
    line-height: var(--line-height-normal);
    margin-bottom: var(--space-sm);
    flex: 1;
}

.card-footer {
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
}

/* Paginazione */
.pagination ul {
  list-style: none;
  display: flex;
  gap: 0.5rem;
  padding: 0;
  margin: var(--space-xl) 0 0;
}
.pagination li { list-style: none; }

.pagination a,
.pagination span {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--color-gray-100);
  color: var(--color-text);
  text-decoration: none;
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
}

.pagination a:hover,
.pagination span.current {
  background: var(--color-primary);
  color: var(--color-white);
}

/* Media Queries */
@media screen and (min-width: 1025px) {
    /* Layout a due colonne per filtri e ricerca su desktop */
    .filters-search-wrapper {
        display: grid;
        grid-template-columns: 2fr 1fr;
        grid-template-rows: auto auto;
        gap: var(--space-md);
        align-items: start;
        margin-bottom: 4rem;
    }

    .filters-container {
        grid-column: 1;
        grid-row: 1 / span 2;
        margin-bottom: 0;
        align-items: flex-start;
    }

    .category-filters,
    .format-filters {
        justify-content: flex-start;
    }
}

@media screen and (max-width: 768px) {
    .category-filters,
    .format-filters {
        gap: 0.5rem;
    }

    .category-pill,
    .format-pill {
        padding: 0.4rem 1rem;
        font-size: var(--font-size-sm);
    }

    /* Reset del layout a due colonne per mobile */
    .filters-search-wrapper {
        display: block;
    }
}

@media screen and (max-width: 640px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .card-content {
        padding: var(--space-sm);
    }

    .meta-info {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .blog-intro h1 {
        font-size: clamp(1.5rem, 1rem + 2.5vw, 2rem);
    }

    .blog-intro p {
        font-size: var(--font-size-md);
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .category-pill {
        background: var(--color-gray-600);
        color: var(--color-gray-200);
    }

    .format-pill {
        background: var(--color-gray-500);
        color: var(--color-gray-200);
    }

    .format-pill:hover {
        background: var(--color-gray-400);
    }

    .card-footer {
        border-top-color: var(--color-gray-500);
    }

    .search-highlight {
        background-color: rgba(62, 116, 219, 0.3);
    }
}

/* Utility per contenuti solo-per-screen-reader */
.sr-only {
    position: absolute;
    width: 1px; 
    height: 1px; 
    padding: 0; 
    margin: -1px;
    overflow: hidden; 
    clip: rect(0,0,0,0); 
    white-space: nowrap; 
    border: 0;
}