/* ═══════════════════════════════════════════════════════════
   InterBienStar — blog.css (Blog page styles)
   Aesthetic: Medium meets Tech — clean, editorial, readable
═══════════════════════════════════════════════════════════ */

/* ── BLOG HERO ───────────────────────────────────────────── */
.blog-hero {
  position: relative;
  z-index: 1;
  padding-top: calc(66px + clamp(3.5rem, 6vw, 5rem));
  padding-bottom: clamp(2.5rem, 4vw, 3.5rem);
  padding-inline: var(--pad);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(14,165,233,0.04) 0%, transparent 100%);
}

.blog-hero-content { max-width: 680px; }

.blog-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 1rem;
}

.blog-hero-sub {
  font-size: 1.05rem;
  color: var(--text-2);
  line-height: 1.75;
  max-width: 520px;
}

/* ── CATEGORIES BAR ─────────────────────────────────────── */
.categories-bar {
  position: relative;
  z-index: 1;
  padding-block: 1.25rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 66px;
}

.cats-wrap {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.cat-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.45em 1.1em;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-2);
  background: transparent;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--t) var(--ease);
}

.cat-btn:hover {
  color: var(--text);
  border-color: var(--border-md);
  background: rgba(56,189,248,0.05);
}

.cat-btn.active {
  background: var(--cyan-deep);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(14,165,233,0.3);
}

/* ── BLOG LAYOUT ─────────────────────────────────────────── */
.blog-content {
  position: relative;
  z-index: 1;
  padding-block: clamp(3rem, 6vw, 5rem);
  padding-inline: var(--pad);
}

.blog-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
  max-width: var(--max-w);
  margin-inline: auto;
}

/* ── FEATURED ARTICLE ────────────────────────────────────── */
.article-featured {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color var(--t), box-shadow var(--t);
  cursor: pointer;
  margin-bottom: 2rem;
}
.article-featured:hover {
  border-color: var(--border-md);
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}

.art-feat-media {
  position: relative;
  background: var(--bg);
  overflow: hidden;
}

.blog-visual { display: block; width: 100%; }

.art-cat-badge {
  position: absolute;
  top: 1rem; left: 1rem;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.cat-fibra  { background: rgba(14,165,233,0.15); color: var(--cyan);  border: 1px solid rgba(14,165,233,0.3); }
.cat-wifi   { background: rgba(139,92,246,0.15); color: #a78bfa;      border: 1px solid rgba(139,92,246,0.3); }
.cat-redes  { background: rgba(34,197,94,0.15);  color: #4ade80;      border: 1px solid rgba(34,197,94,0.3); }
.cat-soporte{ background: rgba(251,191,36,0.12); color: var(--amber); border: 1px solid rgba(251,191,36,0.25); }

.art-feat-body { padding: clamp(1.5rem, 3vw, 2.25rem); }

.art-feat-title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 0.9rem;
  transition: color var(--t);
}
.article-featured:hover .art-feat-title { color: var(--cyan); }

.art-feat-excerpt {
  font-size: 0.925rem;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.art-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.art-author { display: flex; align-items: center; gap: 10px; }

.art-avatar {
  width: 36px; height: 36px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--cyan-dark), var(--cyan));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.72rem;
  color: #fff;
  flex-shrink: 0;
}

.art-author-name {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}
.art-date {
  display: block;
  font-size: 0.76rem;
  color: var(--text-3);
  margin-top: 1px;
}

/* ── ARTICLES GRID ───────────────────────────────────────── */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--t), transform var(--t), box-shadow var(--t);
  display: flex;
  flex-direction: column;
  cursor: pointer;
}

.article-card:hover {
  border-color: var(--border-md);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.35);
}

.art-card-media {
  position: relative;
  height: 160px;
  overflow: hidden;
}

.art-card-bg {
  width: 100%; height: 100%;
}
.art-card-bg svg { width: 100%; height: 100%; }

.art-card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}

.art-card-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  transition: color var(--t);
}
.article-card:hover .art-card-title { color: var(--cyan); }

.art-card-excerpt {
  font-size: 0.82rem;
  color: var(--text-2);
  line-height: 1.7;
  flex: 1;
}

.art-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

/* ── LOAD MORE ───────────────────────────────────────────── */
.load-more-wrap {
  text-align: center;
  padding-top: 1rem;
}

.btn-load {
  min-width: 200px;
}

/* ── SIDEBAR ─────────────────────────────────────────────── */
.blog-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: sticky;
  top: calc(66px + 64px + 1.5rem);
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.widget-title {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 0.9rem;
  letter-spacing: -0.01em;
}

.widget-newsletter p,
.widget-plans p {
  font-size: 0.83rem;
  color: var(--text-2);
  line-height: 1.65;
  margin-bottom: 1rem;
}

.widget-newsletter { background: linear-gradient(135deg, rgba(14,165,233,0.06), rgba(6,12,24,1)); }

.widget-plans { background: linear-gradient(135deg, rgba(4,120,87,0.08), rgba(6,12,24,1)); border-color: rgba(34,197,94,0.15); }

.plans-widget-top { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.75rem; }
.plans-widget-icon {
  width: 30px; height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(14,165,233,0.1);
  border: 1px solid rgba(14,165,233,0.2);
  border-radius: var(--radius-sm);
  color: var(--cyan);
  flex-shrink: 0;
}

.widget-plans strong { color: #86efac; }

/* Popular list */
.popular-list { display: flex; flex-direction: column; gap: 0.75rem; }

.popular-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.popular-item:last-child { border: none; padding-bottom: 0; }

.pop-num {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 900;
  color: rgba(56,189,248,0.25);
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.popular-item a {
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--text);
  transition: color var(--t);
  line-height: 1.4;
}
.popular-item a:hover { color: var(--cyan); }

.popular-item span {
  display: block;
  font-size: 0.73rem;
  color: var(--text-3);
  margin-top: 3px;
}

/* Coverage widget */
.cov-list-mini {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.cov-list-mini li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-2);
}

.cdot-green {
  width: 8px; height: 8px;
  border-radius: var(--radius-full);
  background: var(--green);
  flex-shrink: 0;
  animation: livepulse 2s ease-out infinite;
}

.cdot-amber {
  width: 8px; height: 8px;
  border-radius: var(--radius-full);
  background: var(--amber);
  flex-shrink: 0;
}

/* ── HIDDEN ARTICLES (category filter) ──────────────────── */
.article-card.hidden,
.article-featured.hidden {
  display: none;
}

/* ── RESPONSIVE BLOG ─────────────────────────────────────── */
@media (max-width: 1100px) {
  .blog-layout { grid-template-columns: 1fr; }
  .blog-sidebar { position: static; flex-direction: row; flex-wrap: wrap; }
  .sidebar-widget { flex: 1; min-width: 240px; }
}

@media (max-width: 768px) {
  .articles-grid { grid-template-columns: 1fr; }
  .categories-bar { top: 66px; }
  .blog-layout { gap: 2rem; }
  .art-meta { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .sidebar-widget { flex: 1 1 100%; }
}