/* ============================================================
   BLOG — blog.css
   Estilos para blog.html (dinámico) y artículos individuales
============================================================ */

.blog-page { background: var(--gray-50); }
.blog-page .navbar { background: rgba(11,31,58,.97); }
.nav-active { color: var(--white) !important; font-weight: 600 !important; }

/* ── Hero ── */
.blog-hero {
  background: var(--navy);
  padding: 120px 0 56px;
  position: relative;
  overflow: hidden;
}
.blog-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 70% 50%, rgba(26,86,196,.12) 0%, transparent 70%);
}
.blog-hero-inner { position: relative; z-index: 1; max-width: 640px; }

.blog-titulo {
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -.02em;
  margin-bottom: 14px;
}
.blog-accent { color: var(--cyan); }

.blog-sub {
  font-size: 16px;
  color: rgba(255,255,255,.55);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 32px;
}

/* ── Buscador ── */
.blog-search-wrap { max-width: 440px; }
.blog-search-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 10px;
  padding: 11px 16px;
  transition: border-color .2s ease, background .2s ease;
}
.blog-search-row:focus-within {
  border-color: rgba(0,180,216,.5);
  background: rgba(255,255,255,.11);
}
.blog-search-row svg { color: rgba(255,255,255,.4); flex-shrink: 0; }
.blog-search-row input {
  background: none;
  border: none;
  outline: none;
  font-family: var(--font);
  font-size: 14px;
  color: var(--white);
  width: 100%;
}
.blog-search-row input::placeholder { color: rgba(255,255,255,.35); }

/* ── Filtros de categoría ── */
.blog-cats-wrap { background: var(--navy); padding: 0 0 28px; }
.blog-cats { display: flex; gap: 8px; flex-wrap: wrap; }

.blog-cat-btn {
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font);
  color: rgba(255,255,255,.5);
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 24px;
  padding: 8px 18px;
  cursor: pointer;
  transition: all .2s ease;
}
.blog-cat-btn:hover { background: rgba(255,255,255,.1); color: var(--white); }
.blog-cat-btn.activo { background: var(--blue); border-color: var(--blue); color: var(--white); }

/* ── Sección del grid ── */
.blog-grid-wrap { padding: 40px 0 80px; }

/* Status bar */
.blog-status-bar { margin-bottom: 28px; min-height: 28px; }

.blog-status-loading {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--gray-500);
}

.blog-spinner {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--gray-100);
  border-top-color: var(--blue);
  animation: spin .7s linear infinite;
  flex-shrink: 0;
}

@keyframes spin { to { transform: rotate(360deg); } }

.blog-status-count {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-500);
}

/* ── Grid de tarjetas ── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ── Tarjeta (bc = blog card) ── */
.blog-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  /* Animación de entrada */
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity .45s ease both,
    transform .45s ease both,
    box-shadow .25s ease,
    border-color .25s ease;
}

.blog-card.bc-visible {
  opacity: 1;
  transform: translateY(0);
}

.blog-card:hover {
  box-shadow: 0 12px 40px rgba(11,31,58,.12);
  border-color: var(--gray-300);
}

/* Imagen */
.bc-img-wrap {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--navy);
  text-decoration: none;
}

.bc-img-real {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

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

.bc-img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(15,43,90,.95) 0%, rgba(26,86,196,.25) 100%);
}

/* Overlay con CTA */
.bc-img-overlay {
  position: absolute;
  inset: 0;
  background: rgba(11,31,58,.72);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font);
  opacity: 0;
  transition: opacity .25s ease;
  backdrop-filter: blur(2px);
}
.blog-card:hover .bc-img-overlay { opacity: 1; }

/* Badge de categoría */
.bc-cat-pill {
  position: absolute;
  bottom: 12px;
  left: 12px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 11px;
  border-radius: 20px;
  z-index: 2;
  transition: transform .2s ease;
}
.blog-card:hover .bc-cat-pill { transform: translateY(-2px); }

/* Cuerpo */
.bc-body {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.bc-meta {
  display: flex;
  align-items: center;
  gap: 6px;
}
.bc-fecha, .bc-tiempo {
  font-size: 12px;
  color: var(--gray-500);
}
.bc-sep { color: var(--gray-300); font-size: 11px; }

.bc-titulo {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.35;
  margin: 0;
}
.bc-titulo a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease;
}
.bc-titulo a:hover { color: var(--blue); }

.bc-desc {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.65;
  flex: 1;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
  margin: 0;
}

.bc-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
  text-decoration: none;
  margin-top: 4px;
  transition: gap .2s ease, color .2s ease;
}
.bc-cta:hover { gap: 10px; color: var(--blue-light); }

/* ── Sin resultados ── */
.blog-vacio {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 64px 0;
  color: var(--gray-500);
  text-align: center;
}
.blog-vacio-ico {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-300);
}
.blog-vacio p { font-size: 15px; margin: 0; }

/* ── CTA final ── */
.blog-cta { background: linear-gradient(135deg, var(--navy) 0%, #0a1628 100%); padding: 72px 0; }
.blog-cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
}
.blog-cta-texto h2 { font-size: clamp(20px, 2.5vw, 28px); font-weight: 700; color: var(--white); margin-bottom: 8px; }
.blog-cta-texto p  { font-size: 15px; color: rgba(255,255,255,.55); line-height: 1.6; margin: 0; }

/* ── Badges (para artículos individuales también) ── */
.blog-cat-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
}
.blog-cat-badge.mantenimiento { background: rgba(26,86,196,.1);  color: var(--blue);   }
.blog-cat-badge.seguridad     { background: rgba(16,185,129,.1); color: #065f46;       }
.blog-cat-badge.digital       { background: rgba(0,180,216,.1);  color: #0369a1;       }
.blog-cat-badge.redes         { background: rgba(139,92,246,.1); color: #5b21b6;       }
.blog-cat-badge.software      { background: rgba(245,158,11,.1); color: #92400e;       }

/* ============================================================
   ARTÍCULO INDIVIDUAL
============================================================ */
.art-main { padding: 48px 0 80px; background: var(--gray-50); }

.art-container {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}

.art-breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--gray-500);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.art-breadcrumb a { color: var(--blue); }
.art-breadcrumb a:hover { text-decoration: underline; }

.art-header { margin-bottom: 32px; padding-bottom: 32px; border-bottom: 1px solid var(--gray-100); }
.art-header .blog-cat-badge { margin-bottom: 14px; }

.art-header h1 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
  letter-spacing: -.01em;
  margin-bottom: 12px;
}

.art-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  color: var(--gray-500);
  flex-wrap: wrap;
}

.art-intro {
  font-size: 17px;
  color: var(--gray-700);
  line-height: 1.7;
  margin-top: 16px;
  padding: 16px 20px;
  border-left: 3px solid var(--blue);
  background: rgba(26,86,196,.04);
  border-radius: 0 8px 8px 0;
}

.art-body { background: var(--white); border-radius: 16px; padding: 40px; border: 1px solid var(--gray-100); }

.art-body h2 { font-size: 22px; font-weight: 700; color: var(--navy); margin: 32px 0 12px; padding-top: 8px; }
.art-body h2:first-child { margin-top: 0; }
.art-body h3 { font-size: 17px; font-weight: 700; color: var(--navy); margin: 24px 0 8px; }
.art-body p  { font-size: 15px; color: var(--gray-700); line-height: 1.8; margin-bottom: 16px; }
.art-body em { font-style: italic; color: var(--blue); }
.art-body strong { font-weight: 700; color: var(--navy); }

.art-tip {
  display: flex; gap: 12px; align-items: flex-start;
  background: rgba(26,86,196,.05);
  border: 1px solid rgba(26,86,196,.15);
  border-radius: 10px; padding: 16px 18px; margin: 24px 0;
}
.art-tip svg { color: var(--blue); flex-shrink: 0; margin-top: 2px; }
.art-tip p  { margin: 0; font-size: 14px; color: var(--gray-700); }

.art-alerta {
  display: flex; gap: 12px; align-items: flex-start;
  background: #fffbeb; border: 1px solid #fde68a;
  border-radius: 10px; padding: 16px 18px; margin: 24px 0;
}
.art-alerta svg { color: #f59e0b; flex-shrink: 0; margin-top: 2px; }
.art-alerta p  { margin: 0; font-size: 14px; color: #78350f; }

.art-cta-inline {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  border-radius: 12px; padding: 28px 32px; margin-top: 40px;
}
.art-cta-inline h3 { font-size: 18px; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.art-cta-inline p  { font-size: 14px; color: rgba(255,255,255,.6); line-height: 1.6; margin-bottom: 20px; }

/* Sidebar */
.art-sidebar { display: flex; flex-direction: column; gap: 16px; position: sticky; top: 90px; }

.sidebar-card {
  background: var(--white); border: 1px solid var(--gray-100);
  border-radius: 14px; padding: 22px 20px;
}
.sidebar-card h4 { font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.sidebar-card > p { font-size: 13px; color: var(--gray-500); line-height: 1.6; margin-bottom: 12px; }
.sidebar-card.dark { background: var(--navy); border-color: transparent; }
.sidebar-card.dark h4 { color: var(--white); }
.sidebar-card.dark p  { color: rgba(255,255,255,.6); margin: 0; font-size: 14px; }

.sidebar-links { display: flex; flex-direction: column; gap: 8px; }
.sidebar-links a {
  font-size: 13px; font-weight: 500; color: var(--blue);
  padding: 6px 0; border-bottom: 1px solid var(--gray-100);
  line-height: 1.4; transition: padding-left .2s ease;
}
.sidebar-links a:last-child { border-bottom: none; }
.sidebar-links a:hover { padding-left: 4px; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .art-container { grid-template-columns: 1fr; }
  .art-sidebar { position: static; flex-direction: row; flex-wrap: wrap; }
  .sidebar-card { flex: 1; min-width: 200px; }
}

@media (max-width: 768px) {
  .blog-grid { grid-template-columns: 1fr; }
  .blog-cta-inner { grid-template-columns: 1fr; gap: 24px; }
  .art-body { padding: 24px 20px; }
  .art-cta-inline { padding: 22px 20px; }
}