/* ============================================================================
   ATLATECH SRL — PAGINA BLOG
   ============================================================================
   Stili pagina /blog e /blog/{slug}.
   Usa esclusivamente token CSS del design system (style.css).
   ============================================================================ */

/* ==========================================================================
   BLOG HEADER
   ========================================================================== */
.blog-header-section {
    position: relative;
    padding-block: calc(var(--space-11) + var(--space-4)) var(--space-9);
    overflow: hidden;
    isolation: isolate;
    background: var(--gradient-hero);
}
.blog-header-orb {
    filter: blur(130px);
    opacity: 0.4;
    z-index: 0;
    pointer-events: none;
}
.blog-header-orb--1 { width: 380px; height: 380px; top: -100px; left: -100px; }
.blog-header-orb--2 { width: 440px; height: 440px; top: 10%; right: -140px; }
.blog-header-inner {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    max-width: 760px;
}
.blog-header-inner h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    line-height: 1.02;
    letter-spacing: -0.03em;
}
.blog-header-inner .lead { max-width: 62ch; }

/* Search form */
.blog-search-form { max-width: 580px; }
.blog-search-wrap {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--r-full);
    padding: var(--space-2) var(--space-2) var(--space-2) var(--space-4);
    transition: border-color var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard);
}
.blog-search-wrap:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-soft);
}
.blog-search-icon { color: var(--color-text-dim); flex-shrink: 0; }
.blog-search-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    font-size: var(--fs-base);
    color: var(--color-text);
    padding: 0;
}
.blog-search-input::placeholder { color: var(--color-text-dim); }

/* ==========================================================================
   BLOG LAYOUT — main + aside
   ========================================================================== */
.blog-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--space-9);
    padding-block: var(--space-9);
    align-items: start;
}
.blog-main { min-width: 0; }

/* ==========================================================================
   POST FEATURED
   ========================================================================== */
.blog-featured { margin-bottom: var(--space-8); }
.blog-featured-link {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 0;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--r-xl);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}
.blog-featured-link:hover {
    transform: translateY(-4px);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-xl);
}
.blog-featured-media {
    position: relative;
    min-height: 320px;
    background: var(--gradient-hero);
    overflow: hidden;
}
.blog-featured-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 25% 35%, var(--color-primary-glow), transparent 50%),
        radial-gradient(circle at 75% 65%, var(--color-accent-1-glow), transparent 50%);
    opacity: 0.8;
    transition: transform var(--dur-slow) var(--ease-standard);
}
.blog-featured-link:hover .blog-featured-gradient { transform: scale(1.06); }
.blog-featured-badge {
    position: absolute;
    top: var(--space-4); left: var(--space-4);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--letter-wide);
    text-transform: uppercase;
    padding: 0.35em 0.8em;
    background: var(--color-primary-soft);
    border: 1px solid rgba(201,168,76,0.4);
    border-radius: var(--r-full);
    color: var(--color-primary);
}
.blog-featured-body {
    padding: var(--space-7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-4);
}
.blog-featured-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
    color: var(--color-text-dim);
}
.blog-featured-body h2 {
    font-size: var(--fs-2xl);
    line-height: var(--lh-heading);
    color: var(--color-text);
}
.blog-featured-link:hover .blog-featured-body h2 { color: var(--color-primary); }
.blog-featured-body p { font-size: var(--fs-sm); flex: 1; }

/* Shared blog-card-cat */
.blog-card-cat {
    position: absolute;
    bottom: var(--space-3); left: var(--space-3);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--letter-wide);
    text-transform: uppercase;
    padding: 0.35em 0.8em;
    background: var(--glass-bg-strong);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--r-full);
    z-index: 2;
}
.blog-cat--primary { color: var(--color-primary); }
.blog-cat--tech    { color: var(--color-accent-2); }
.blog-cat--accent  { color: var(--color-accent-1); }

/* ==========================================================================
   FILTRI CATEGORIE
   ========================================================================== */
.blog-filters {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    margin-bottom: var(--space-7);
}
.blog-filter-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.45em 1.1em;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--color-text-muted);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--r-full);
    text-decoration: none;
    transition: var(--transition-base);
}
.blog-filter-chip:hover {
    color: var(--color-text);
    border-color: var(--color-border-strong);
    background: var(--color-bg-card-hover);
}
.blog-filter-chip.is-active {
    color: var(--color-primary);
    background: var(--color-primary-soft);
    border-color: rgba(201,168,76,0.4);
}

/* ==========================================================================
   GRIGLIA ARTICOLI (3 colonne)
   ========================================================================== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
    margin-bottom: var(--space-8);
}
.blog-post-card {
    display: flex;
    flex-direction: column;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--r-lg);
    overflow: hidden;
    transition: var(--transition-base);
}
.blog-post-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-lg);
}
.blog-post-card-media {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    display: block;
}
.blog-post-gradient {
    position: absolute;
    inset: 0;
    transition: transform var(--dur-slow) var(--ease-standard);
}
.blog-post-card:hover .blog-post-gradient { transform: scale(1.05); }
.blog-post-gradient--1 { background: radial-gradient(circle at 30% 40%, var(--color-primary-glow), transparent 50%), radial-gradient(circle at 70% 60%, var(--color-accent-1-glow), transparent 50%); }
.blog-post-gradient--2 { background: radial-gradient(circle at 70% 30%, rgba(6,182,212,0.4), transparent 50%), radial-gradient(circle at 30% 70%, var(--color-primary-glow), transparent 50%); }
.blog-post-gradient--3 { background: radial-gradient(circle at 50% 50%, var(--color-accent-1-glow), transparent 60%); }
.blog-post-gradient--4 { background: radial-gradient(circle at 20% 50%, rgba(6,182,212,0.3), transparent 50%), radial-gradient(circle at 80% 50%, var(--color-primary-glow), transparent 50%); }

.blog-post-body {
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    flex: 1;
}
.blog-post-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-text-dim);
}
.blog-post-body h3 { font-size: var(--fs-md); line-height: var(--lh-heading); }
.blog-post-body h3 a { color: var(--color-text); }
.blog-post-body h3 a:hover { color: var(--color-primary); }
.blog-post-body p { font-size: var(--fs-sm); flex: 1; }
.blog-post-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-border);
    margin-top: auto;
}

/* ==========================================================================
   PAGINAZIONE
   ========================================================================== */
.blog-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    flex-wrap: wrap;
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}
.blog-pagination-info { font-size: var(--fs-sm); color: var(--color-text-dim); }
.blog-pagination-links {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}
.blog-pagination-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--color-text-muted);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--r-sm);
    text-decoration: none;
    transition: var(--transition-base);
}
.blog-pagination-num:hover {
    color: var(--color-text);
    border-color: var(--color-border-strong);
}
.blog-pagination-num.is-active {
    color: var(--color-primary);
    background: var(--color-primary-soft);
    border-color: rgba(201,168,76,0.4);
}

/* ==========================================================================
   SIDEBAR
   ========================================================================== */
.blog-sidebar { display: flex; flex-direction: column; gap: var(--space-6); }
.sidebar-widget {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--r-xl);
    padding: var(--space-6);
}
.sidebar-title {
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--letter-wide);
    text-transform: uppercase;
    color: var(--color-text);
    margin-bottom: var(--space-4);
}
.sidebar-cats { display: flex; flex-direction: column; gap: var(--space-1); }
.sidebar-cat-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--r-md);
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    text-decoration: none;
    transition: var(--transition-base);
}
.sidebar-cat-link:hover,
.sidebar-cat-link.is-active {
    color: var(--color-primary);
    background: var(--color-primary-soft);
}
.sidebar-cat-link svg { opacity: 0; transition: opacity var(--dur-base); }
.sidebar-cat-link:hover svg { opacity: 1; }

.sidebar-recent { display: flex; flex-direction: column; gap: var(--space-4); }
.sidebar-recent-link { display: flex; flex-direction: column; gap: var(--space-1); text-decoration: none; }
.sidebar-recent-cat {
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--letter-wide);
    text-transform: uppercase;
}
.sidebar-cat--primary { color: var(--color-primary); }
.sidebar-cat--tech    { color: var(--color-accent-2); }
.sidebar-cat--accent  { color: var(--color-accent-1); }
.sidebar-recent-title {
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--color-text);
    line-height: var(--lh-heading);
    transition: color var(--dur-base) var(--ease-standard);
}
.sidebar-recent-link:hover .sidebar-recent-title { color: var(--color-primary); }
.sidebar-recent-item time { color: var(--color-text-dim); font-size: var(--fs-xs); }

.sidebar-newsletter {
    position: relative;
    overflow: hidden;
    background: var(--glass-bg-strong);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    isolation: isolate;
}
.sidebar-newsletter-inner { position: relative; z-index: 1; }
.sidebar-newsletter h3 { font-size: var(--fs-md); margin-bottom: var(--space-2); color: var(--color-text); }
.sidebar-nl-form { margin-top: var(--space-4); }
.sidebar-nl-glow {
    width: 200px; height: 200px;
    top: -80px; right: -80px;
    opacity: 0.3;
}

/* ==========================================================================
   BLOG POST (single) — usato in blog-post.view.php
   ========================================================================== */
.post-hero {
    position: relative;
    padding-block: calc(var(--space-11) + var(--space-4)) var(--space-8);
    overflow: hidden;
    isolation: isolate;
    background: var(--gradient-hero);
}
.post-hero-orb {
    filter: blur(130px);
    opacity: 0.4;
    z-index: 0;
    pointer-events: none;
}
.post-hero-orb--1 { width: 400px; height: 400px; top: -100px; left: -100px; }
.post-hero-orb--2 { width: 360px; height: 360px; top: 20%; right: -120px; }
.post-hero-inner {
    position: relative;
    z-index: 2;
    max-width: 820px;
}
.post-hero-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-bottom: var(--space-5);
    font-size: var(--fs-sm);
    color: var(--color-text-dim);
}
.post-hero h1 {
    font-size: clamp(2rem, 5vw, 3.75rem);
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-5);
    color: var(--color-text);
}
.post-hero .lead { max-width: 70ch; }
.post-hero-author {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-border);
}
.post-author-avatar {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: var(--fs-sm);
    font-weight: var(--fw-bold);
    color: var(--color-bg);
    flex-shrink: 0;
}
.post-author-info { display: flex; flex-direction: column; gap: 2px; }
.post-author-name { font-size: var(--fs-sm); font-weight: var(--fw-semibold); color: var(--color-text); }
.post-author-role { font-size: var(--fs-xs); color: var(--color-text-dim); }

/* Post layout: content + sidebar */
.post-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: var(--space-9);
    padding-block: var(--space-9);
    align-items: start;
}
.post-content {
    min-width: 0;
}
.post-body {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--r-xl);
    padding: var(--space-8);
    margin-bottom: var(--space-8);
}
.post-body h2 { font-size: var(--fs-2xl); margin-top: var(--space-8); margin-bottom: var(--space-4); }
.post-body h2:first-child { margin-top: 0; }
.post-body h3 { font-size: var(--fs-xl); margin-top: var(--space-6); margin-bottom: var(--space-3); }
.post-body p  { color: var(--color-text-muted); max-width: 72ch; margin-bottom: var(--space-4); }
.post-body ul, .post-body ol { padding-left: var(--space-5); margin-bottom: var(--space-4); }
.post-body ul  { list-style: disc; }
.post-body ol  { list-style: decimal; }
.post-body li  { margin-bottom: var(--space-2); color: var(--color-text-muted); }
.post-body blockquote {
    position: relative;
    margin: var(--space-6) 0;
    padding: var(--space-5) var(--space-6);
    background: var(--color-primary-soft);
    border-left: 3px solid var(--color-primary);
    border-radius: 0 var(--r-md) var(--r-md) 0;
}
.post-body blockquote p { color: var(--color-text); margin: 0; font-size: var(--fs-md); font-style: italic; }
.post-body pre {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--r-md);
    padding: var(--space-5);
    overflow-x: auto;
    margin: var(--space-5) 0;
}
.post-body pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: var(--fs-sm);
    color: var(--color-accent-2);
}
.post-body .post-image-placeholder {
    aspect-ratio: 16 / 9;
    border-radius: var(--r-lg);
    overflow: hidden;
    margin: var(--space-6) 0;
    background: var(--gradient-hero);
    position: relative;
}
.post-body .post-image-placeholder::after {
    content: 'Immagine articolo';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-sm);
    color: var(--color-text-dim);
    letter-spacing: var(--letter-wide);
    text-transform: uppercase;
}

.post-tags {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-border);
    margin-top: var(--space-6);
}
.post-tags-label { font-size: var(--fs-sm); font-weight: var(--fw-semibold); color: var(--color-text-dim); }

/* Post related */
.post-related { margin-bottom: var(--space-8); }
.post-related-title { font-size: var(--fs-xl); margin-bottom: var(--space-5); }
.post-related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }

/* Post newsletter inline */
.post-newsletter {
    position: relative;
    padding: var(--space-7);
    background: var(--glass-bg-strong);
    border: 1px solid var(--color-border);
    border-radius: var(--r-xl);
    overflow: hidden;
    isolation: isolate;
}
.post-newsletter::before {
    content: '';
    position: absolute;
    inset: -1px;
    background: var(--gradient-border);
    opacity: 0.2;
    z-index: -1;
    border-radius: inherit;
}
.post-nl-glow { width: 300px; height: 300px; top: -120px; right: -80px; opacity: 0.35; }
.post-newsletter h3 { font-size: var(--fs-2xl); margin-bottom: var(--space-2); }
.post-nl-form {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-5);
    flex-wrap: wrap;
}
.post-nl-form .form-control { flex: 1; min-width: 200px; }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1200px) {
    .blog-layout { grid-template-columns: 1fr 260px; gap: var(--space-7); }
}
@media (max-width: 1024px) {
    .blog-layout { grid-template-columns: 1fr; }
    .blog-sidebar { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
    .blog-featured-link { grid-template-columns: 1fr; }
    .blog-featured-media { min-height: 240px; }
    .blog-grid { grid-template-columns: repeat(2, 1fr); }
    .post-layout { grid-template-columns: 1fr; }
    .post-related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .blog-sidebar { grid-template-columns: 1fr; }
    .blog-grid { grid-template-columns: 1fr; }
    .blog-pagination { flex-direction: column; align-items: flex-start; }
    .post-body { padding: var(--space-5); }
}
@media (max-width: 640px) {
    .blog-header-inner h1 { font-size: var(--fs-3xl); }
    .blog-search-wrap { border-radius: var(--r-lg); padding: var(--space-2) var(--space-3); flex-wrap: wrap; }
    .blog-search-input { min-width: 0; }
    .post-related-grid { grid-template-columns: 1fr; }
    .post-nl-form { flex-direction: column; }
}