/* ============================================================
   layout-o/style.css — Dark Tech Portal (Portal de noticias inspired)
   Dark nav + dark body, filter tabs above article grid,
   featured 2/3+1/3 layout, deep dark cards.
   All colors via var(--clr-*); no hardcoded hex except #fff / rgba
   ============================================================ */

/* ── Override body to dark ───────────────────────────────────── */
body {
  background: var(--clr-bg-dark) !important;
  color: var(--clr-text-inv);
}

/* ── Header: full dark ───────────────────────────────────────── */
.layout-o .site-header,
body.layout-o .site-header {
  background: var(--clr-bg-dark);
  border-bottom: 3px solid var(--clr-accent);
  box-shadow: 0 2px 20px rgba(0,0,0,.4);
}

/* ── FILTER TAB BAR ──────────────────────────────────────────── */
.layout-o-filter-bar {
  background: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
  overflow-x: auto;
  scrollbar-width: none;
  position: sticky;
  top: 58px;
  z-index: 100;
}
.layout-o-filter-bar::-webkit-scrollbar { display: none; }

.layout-o-filter-inner {
  max-width: var(--container, 1160px);
  margin: 0 auto;
  padding: 0 var(--space-5, 20px);
  display: flex;
  align-items: center;
  gap: 0;
  white-space: nowrap;
}

.layout-o-tab {
  display: inline-flex;
  align-items: center;
  padding: 14px 20px;
  font-size: 13px;
  font-weight: 700;
  color: var(--clr-text-muted);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: color .2s, border-color .2s;
  white-space: nowrap;
  border-top: none;
  border-left: none;
  border-right: none;
  background: none;
}
.layout-o-tab:hover {
  color: var(--clr-text);
}
.layout-o-tab.active {
  color: var(--clr-accent);
  border-bottom-color: var(--clr-accent);
}

/* ── PORTAL BODY ─────────────────────────────────────────────── */
.layout-o-portal {
  padding: var(--space-8, 32px) 0 var(--space-12, 48px);
}

/* ── SECTION HEADER ──────────────────────────────────────────── */
.layout-o-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6, 24px);
}

.layout-o-section-title {
  font-family: var(--font-heading, 'Barlow Condensed', sans-serif);
  font-size: clamp(20px, 2.8vw, 28px);
  font-weight: 900;
  color: var(--clr-text-inv);
  letter-spacing: -.01em;
}
.layout-o-section-title .accent { color: var(--clr-accent); }

.layout-o-divider {
  display: flex;
  align-items: center;
  gap: var(--space-3, 12px);
  margin-bottom: var(--space-6, 24px);
}
.layout-o-divider::before {
  content: '';
  display: block;
  width: 4px;
  height: 22px;
  background: var(--clr-accent);
  border-radius: 2px;
}

/* ── FEATURED SECTION (2fr + 1fr) ────────────────────────────── */
.layout-o-featured {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4, 16px);
  margin-bottom: var(--space-8, 32px);
}
@media (min-width: 768px) {
  .layout-o-featured {
    grid-template-columns: 2fr 1fr;
    align-items: start;
  }
}

/* Featured main card (left large) */
.layout-o-featured-main {
  background: var(--clr-bg-dark2, #1a1d24);
  border: 1px solid var(--clr-border-dark);
  border-radius: var(--radius-md, 12px);
  overflow: hidden;
  transition: transform .2s, box-shadow .2s;
  text-decoration: none;
  display: block;
}
.layout-o-featured-main:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0,0,0,.5);
}
.layout-o-featured-main-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--clr-bg-dark);
  display: block;
}
@media (min-width: 768px) {
  .layout-o-featured-main-img { aspect-ratio: 2/1; }
}
.layout-o-featured-main-body {
  padding: var(--space-5, 20px) var(--space-5, 20px) var(--space-6, 24px);
}
.layout-o-featured-main-cat {
  display: inline-block;
  font-size: 10px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--clr-accent);
  margin-bottom: var(--space-3, 12px);
}
.layout-o-featured-main-title {
  font-size: clamp(20px, 2.5vw, 26px);
  font-family: var(--font-heading, 'Barlow Condensed', sans-serif);
  font-weight: 900;
  color: var(--clr-text-inv);
  line-height: 1.2;
  margin-bottom: var(--space-3, 12px);
}
.layout-o-featured-main-title:hover { color: var(--clr-accent); }
.layout-o-featured-main-excerpt {
  font-size: 14px;
  color: var(--clr-text-inv-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-4, 16px);
}
.layout-o-featured-main-meta {
  font-size: 12px;
  color: var(--clr-text-inv-muted);
  display: flex;
  align-items: center;
  gap: var(--space-3, 12px);
}

/* Featured stack (right 3 small cards) */
.layout-o-featured-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-3, 12px);
}

.layout-o-stack-card {
  background: var(--clr-bg-dark2, #1a1d24);
  border: 1px solid var(--clr-border-dark);
  border-left: 3px solid var(--clr-accent);
  border-radius: var(--radius-sm, 8px);
  padding: var(--space-4, 16px);
  display: flex;
  gap: var(--space-3, 12px);
  text-decoration: none;
  transition: transform .2s, border-color .2s;
}
.layout-o-stack-card:hover {
  transform: translateX(3px);
  border-left-color: var(--clr-accent);
  box-shadow: 0 4px 20px rgba(0,0,0,.35);
}
.layout-o-stack-card-img {
  width: 72px;
  height: 56px;
  flex-shrink: 0;
  border-radius: var(--radius-xs, 4px);
  object-fit: cover;
  background: var(--clr-bg-dark);
}
.layout-o-stack-card-body { flex: 1; min-width: 0; }
.layout-o-stack-card-cat {
  font-size: 10px;
  font-weight: 700;
  color: var(--clr-accent);
  text-transform: uppercase;
  letter-spacing: .06em;
  display: block;
  margin-bottom: 4px;
}
.layout-o-stack-card-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--clr-text-inv);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.layout-o-stack-card-title:hover { color: var(--clr-accent); }
.layout-o-stack-card-date {
  font-size: 11px;
  color: var(--clr-text-inv-muted);
  margin-top: 4px;
  display: block;
}

/* ── ORDINARY ARTICLES GRID (3-col dark) ─────────────────────── */
.layout-o-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4, 16px);
}
@media (min-width: 640px) {
  .layout-o-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .layout-o-grid { grid-template-columns: repeat(3, 1fr); }
}

.layout-o-card {
  background: var(--clr-bg-dark, #0f1117);
  border: 1px solid var(--clr-border-dark);
  border-radius: var(--radius-md, 12px);
  overflow: hidden;
  transition: transform .2s, box-shadow .2s;
}
.layout-o-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,.45);
  border-color: rgba(240,180,41,.35);
}

.layout-o-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--clr-bg-dark);
  display: block;
}

.layout-o-card-body {
  padding: var(--space-4, 16px) var(--space-4, 16px) var(--space-5, 20px);
}
.layout-o-card-cat {
  font-size: 10px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--clr-accent);
  margin-bottom: var(--space-2, 8px);
  display: block;
}
.layout-o-card-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--clr-text-inv);
  margin-bottom: var(--space-2, 8px);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-decoration: none;
}
.layout-o-card-title:hover { color: var(--clr-accent); }
.layout-o-card-excerpt {
  font-size: 13px;
  color: var(--clr-text-inv-muted);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-3, 12px);
}
.layout-o-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--clr-text-inv-muted);
  border-top: 1px solid var(--clr-border-dark);
  padding-top: var(--space-3, 12px);
  margin-top: var(--space-3, 12px);
}

/* ── CTA BANNER (dark) ───────────────────────────────────────── */
.layout-o-cta-banner {
  background: var(--clr-bg-dark);
  border: 1px solid var(--clr-border-dark);
  border-radius: var(--radius-lg, 20px);
  padding: var(--space-12, 48px) var(--space-8, 32px);
  text-align: center;
  margin: var(--space-12, 48px) 0 var(--space-8, 32px);
  position: relative;
  overflow: hidden;
}
.layout-o-cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 60% 70% at 50% 50%,
    var(--clr-accent-glow, rgba(240,180,41,.12)) 0%,
    transparent 70%
  );
  pointer-events: none;
}
.layout-o-cta-banner h2 {
  position: relative;
  font-family: var(--font-heading, 'Barlow Condensed', sans-serif);
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 900;
  color: var(--clr-text-inv);
  margin-bottom: var(--space-4, 16px);
}
.layout-o-cta-banner p {
  position: relative;
  font-size: 16px;
  color: var(--clr-text-inv-muted);
  margin-bottom: var(--space-6, 24px);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.65;
}
.layout-o-cta-banner .btn { position: relative; }

/* ── MORE LINK ───────────────────────────────────────────────── */
.layout-o-more {
  text-align: center;
  margin-top: var(--space-8, 32px);
}

/* ── ARTICLE PAGE ────────────────────────────────────────────── */
.layout-o-article-page {
  padding: var(--space-10, 40px) 0;
}

.layout-o-article-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8, 32px);
}
@media (min-width: 900px) {
  .layout-o-article-grid {
    grid-template-columns: 1fr 280px;
    align-items: start;
  }
}

/* Dark article card container */
.layout-o-article-main {
  background: var(--clr-bg-dark2, #1a1d24);
  border: 1px solid var(--clr-border-dark);
  border-radius: var(--radius-lg, 20px);
  padding: var(--space-8, 32px);
}

/* Article body dark overrides */
.layout-o-article-main .article-body { color: var(--clr-text-inv); }
.layout-o-article-main .article-body h2,
.layout-o-article-main .article-body h3 { color: var(--clr-text-inv); }
.layout-o-article-main .article-body p { color: var(--clr-text-inv-muted); }
.layout-o-article-main .article-body blockquote {
  background: rgba(255,255,255,.04);
  color: var(--clr-text-inv-muted);
}
.layout-o-article-main .article-lead {
  color: var(--clr-text-inv);
  border-bottom-color: var(--clr-border-dark);
}
.layout-o-article-main .author-bio-card {
  background: rgba(255,255,255,.04);
  border-color: var(--clr-border-dark);
}
.layout-o-article-main .author-bio-name { color: var(--clr-text-inv); }
.layout-o-article-main .faq-item { border-color: var(--clr-border-dark); }
.layout-o-article-main .faq-question {
  background: rgba(255,255,255,.04);
  color: var(--clr-text-inv);
}
.layout-o-article-main .faq-answer { color: var(--clr-text-inv-muted); }
.layout-o-article-main .qa-box { background: rgba(240,180,41,.06); }
.layout-o-article-main .rel-card {
  background: rgba(255,255,255,.04);
  border-color: var(--clr-border-dark);
}
.layout-o-article-main .rel-title { color: var(--clr-text-inv); }

/* Dark sidebar */
.layout-o-sidebar-widget {
  background: var(--clr-bg-dark2, #1a1d24);
  border: 1px solid var(--clr-border-dark);
  border-radius: var(--radius-md, 12px);
  padding: var(--space-5, 20px);
  margin-bottom: var(--space-4, 16px);
}
.layout-o-sidebar-widget-title {
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--clr-accent);
  margin-bottom: var(--space-4, 16px);
  padding-bottom: var(--space-2, 8px);
  border-bottom: 1px solid var(--clr-border-dark);
}

/* ── Responsive tweaks ───────────────────────────────────────── */
@media (max-width: 640px) {
  .layout-o-article-main { padding: var(--space-5, 20px); border-radius: var(--radius-md, 12px); }
  .layout-o-featured { grid-template-columns: 1fr; }
}

/* ── prefers-color-scheme: light fallback ────────────────────── */
@media (prefers-color-scheme: light) {
  body { background: var(--clr-bg) !important; color: var(--clr-text); }

  .layout-o .site-header,
  body.layout-o .site-header {
    background: var(--clr-bg); box-shadow: 0 1px 8px rgba(0,0,0,.06);
  }

  .layout-o-section-title { color: var(--clr-text); }

  .layout-o-featured-main { background: var(--clr-bg); border-color: var(--clr-border); }
  .layout-o-featured-main-title { color: var(--clr-text); }
  .layout-o-featured-main-excerpt { color: var(--clr-text-muted); }
  .layout-o-featured-main-meta { color: var(--clr-text-muted); }
  .layout-o-featured-main-img { background: var(--clr-bg-alt); }

  .layout-o-stack-card {
    background: var(--clr-bg-alt); border-color: var(--clr-border);
    border-left-color: var(--clr-accent);
  }
  .layout-o-stack-card-title { color: var(--clr-text); }
  .layout-o-stack-card-date { color: var(--clr-text-muted); }
  .layout-o-stack-card-img { background: var(--clr-bg-alt); }

  .layout-o-card { background: var(--clr-bg); border-color: var(--clr-border); }
  .layout-o-card:hover { border-color: var(--clr-accent); box-shadow: var(--clr-shadow-md); }
  .layout-o-card-title { color: var(--clr-text); }
  .layout-o-card-excerpt { color: var(--clr-text-muted); }
  .layout-o-card-footer { color: var(--clr-text-muted); border-top-color: var(--clr-border); }
  .layout-o-card-img { background: var(--clr-bg-alt); }

  .layout-o-article-main { background: var(--clr-bg); border-color: var(--clr-border); }
  .layout-o-article-main .article-body { color: var(--clr-text); }
  .layout-o-article-main .article-body h2,
  .layout-o-article-main .article-body h3 { color: var(--clr-text); }
  .layout-o-article-main .article-body p { color: var(--clr-text-muted); }
  .layout-o-article-main .article-body blockquote {
    background: var(--clr-bg-alt); color: var(--clr-text-muted);
  }
  .layout-o-article-main .article-lead { color: var(--clr-text); border-bottom-color: var(--clr-border); }
  .layout-o-article-main .author-bio-card {
    background: var(--clr-bg-alt); border-color: var(--clr-border);
  }
  .layout-o-article-main .author-bio-name { color: var(--clr-text); }
  .layout-o-article-main .faq-item { border-color: var(--clr-border); }
  .layout-o-article-main .faq-question { background: var(--clr-bg-alt); color: var(--clr-text); }
  .layout-o-article-main .faq-answer { color: var(--clr-text-muted); }
  .layout-o-article-main .rel-card { background: var(--clr-bg-alt); border-color: var(--clr-border); }
  .layout-o-article-main .rel-title { color: var(--clr-text); }

  .layout-o-sidebar-widget { background: var(--clr-bg-alt); border-color: var(--clr-border); }
  .layout-o-sidebar-widget-title { border-bottom-color: var(--clr-border); }
}