/* ============================================================
   LUBRICANTES GYG — Blog
   Carga DESPUÉS de ../styles.css
   Solo estilos nuevos: reutiliza todas las variables del sitio.
   ============================================================ */

/* ── Forzar navbar oscuro en el blog (sin hero full-screen) ── */
#navbar {
  background: var(--dark);
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}

/* ======================================================
   BLOG HEADER
   ====================================================== */
.blog-header {
  position: relative;
  padding: calc(var(--navbar-h) + 56px) 0 64px;
  overflow: hidden;
  text-align: center;
}

.blog-header-bg {
  position: absolute;
  inset: 0;
  background: var(--blue-grad);
  z-index: 0;
}

.blog-header-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 60%, rgba(204, 0, 0, 0.09) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 20%, rgba(255, 255, 255, 0.04) 0%, transparent 50%);
}

.blog-header .container {
  position: relative;
  z-index: 1;
}

.blog-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.blog-breadcrumb a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: color 0.2s ease;
}

.blog-breadcrumb a:hover,
.blog-breadcrumb a:focus-visible {
  color: var(--white);
}

.blog-breadcrumb a:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
  border-radius: 2px;
}

.blog-breadcrumb span[aria-current] {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

.blog-header-content {
  max-width: 720px;
  margin: 0 auto;
}

.blog-header-title {
  font-family: var(--font-display);
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 400;
  line-height: 1.05;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin: 12px 0 24px;
}

.blog-header-desc {
  font-family: var(--font-body);
  font-size: clamp(15px, 2vw, 17px);
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
  max-width: 580px;
  margin: 0 auto;
}

/* ======================================================
   BLOG MAIN
   ====================================================== */
.blog-main {
  padding: 72px 0 80px;
}

/* ======================================================
   TARJETAS DE ARTÍCULO
   ====================================================== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 64px;
}

.blog-card {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  border-top: 3px solid var(--red);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.blog-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.blog-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-text);
  background: var(--off-white);
  padding: 4px 10px;
  border-radius: 20px;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.blog-tag--category {
  background: rgba(18, 25, 107, 0.08);
  color: var(--blue-medium);
}

.blog-card__title {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 26px);
  font-weight: 400;
  line-height: 1.15;
  color: var(--dark);
  text-transform: uppercase;
  letter-spacing: 1px;
  flex: 1;
}

.blog-card__summary {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.65;
  color: var(--gray-text);
}

.blog-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--red);
  margin-top: auto;
  transition: gap 0.2s ease, color 0.2s ease;
  width: fit-content;
}

.blog-card__link:hover {
  color: var(--red-hover);
  gap: 10px;
}

.blog-card__link:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ======================================================
   CTA INFERIOR DEL ÍNDICE
   ====================================================== */
.blog-bottom-cta {
  text-align: center;
  background: var(--off-white);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.blog-bottom-cta__text {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  color: var(--dark);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.blog-bottom-cta__note {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--gray-text);
  letter-spacing: 0.5px;
}

/* ======================================================
   CUERPO DE ARTÍCULO (para los index.html individuales)
   Solo se activa cuando existe .article-wrapper
   ====================================================== */
.article-wrapper {
  padding: calc(var(--navbar-h) + 40px) 0 80px;
}

.article-header {
  background: var(--blue-grad);
  padding: calc(var(--navbar-h) + 48px) 0 56px;
  text-align: center;
  position: relative;
}

.article-header .container {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.article-header__meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.article-header__title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5.5vw, 58px);
  font-weight: 400;
  line-height: 1.08;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.article-header__desc {
  font-size: clamp(15px, 1.8vw, 17px);
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.65;
  max-width: 600px;
  margin: 0 auto;
}

/* Contenedor de prosa ──────────────────────────────── */
.article-body {
  max-width: 68ch;         /* ~640px — ancho óptimo de lectura */
  margin: 0 auto;
  padding: 56px 24px 0;
  font-family: var(--font-body);
  font-size: 18px;         /* Generoso para leer en celular a plena luz */
  line-height: 1.78;
  color: var(--dark);
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--dark);
  line-height: 1.1;
  margin: 48px 0 16px;
  padding-top: 8px;
  border-top: 2px solid var(--gray-light);
}

.article-body h3 {
  font-family: var(--font-body);
  font-size: clamp(18px, 2.5vw, 22px);
  font-weight: 700;
  color: var(--blue-dark);
  line-height: 1.3;
  margin: 36px 0 12px;
}

.article-body p {
  margin-bottom: 20px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 20px 0;
  padding-left: 28px;
}

.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }

.article-body li {
  margin-bottom: 8px;
  padding-left: 4px;
}

.article-body ul li::marker { color: var(--red); font-size: 1.1em; }
.article-body ol li::marker { color: var(--blue-dark); font-weight: 700; }

.article-body strong { font-weight: 700; color: var(--dark); }
.article-body em { font-style: italic; }

/* Tablas con scroll horizontal (para móvil) */
.article-body .table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 0 0 24px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.article-body table {
  width: 100%;
  min-width: 480px;       /* fuerza scroll en pantallas pequeñas */
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.5;
}

.article-body th {
  background: var(--blue-dark);
  color: var(--white);
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  font-size: 13px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.article-body td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--gray-light);
  color: var(--dark);
  vertical-align: top;
}

.article-body tr:last-child td { border-bottom: none; }
.article-body tr:nth-child(even) td { background: var(--off-white); }

/* Citas de bloque */
.article-body blockquote {
  margin: 28px 0;
  padding: 18px 20px 18px 24px;
  border-left: 4px solid var(--red);
  background: var(--off-white);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 17px;
  color: var(--dark);
  font-style: italic;
  line-height: 1.7;
}

.article-body blockquote p { margin: 0; }

/* Caja CTA de WhatsApp dentro del artículo */
.article-cta {
  background: var(--blue-grad);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  margin: 48px 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.article-cta__title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.5vw, 30px);
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  line-height: 1.1;
}

.article-cta__sub {
  font-family: var(--font-body);
  font-size: 15px;
  color: rgba(255, 255, 255, 0.72);
  margin: 0;
}

/* ======================================================
   RESPONSIVE
   ====================================================== */

/* Tablet: 2 columnas */
@media (max-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

/* Móvil: 1 columna */
@media (max-width: 768px) {
  .blog-header {
    padding: calc(var(--navbar-h) + 32px) 0 48px;
  }

  .blog-main {
    padding: 48px 0 60px;
  }

  .blog-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 40px;
  }

  .blog-card {
    padding: 22px;
  }

  .blog-card__title {
    font-size: 24px;
  }

  .blog-card__summary {
    font-size: 15px;
  }

  .blog-bottom-cta {
    padding: 28px 20px;
  }

  /* Prosa de artículo */
  .article-body {
    font-size: 17px;
    padding: 36px 0 0;
  }

  .article-body h2 { font-size: 26px; margin: 36px 0 12px; }
  .article-body h3 { font-size: 19px; }

  .article-cta { padding: 28px 20px; }
}

/* Pantallas muy pequeñas: 320px */
@media (max-width: 480px) {
  .blog-header-title { letter-spacing: 1px; }

  .blog-card {
    padding: 18px 16px;
  }

  .blog-card__title { font-size: 22px; }

  .article-body {
    font-size: 16px;
    line-height: 1.72;
  }
}

/* ======================================================
   ACCESIBILIDAD: movimiento reducido
   ====================================================== */
@media (prefers-reduced-motion: reduce) {
  .blog-card { transition: none; }
  .blog-card__link { transition: none; }
}


/* ════════════════════════════════════════════════════════════
   CORRECCION DE CONTRASTE — 31-ago-2026
   Las .blog-tag estan disenadas para las tarjetas (fondo blanco):
   azul sobre gris claro. Dentro de .article-header el fondo es el
   degradado azul oscuro, asi que azul-sobre-azul es ilegible.
   Aqui se invierten para ese contexto.
   ════════════════════════════════════════════════════════════ */
.article-header .blog-tag {
  background: rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.18);
}
.article-header .blog-tag--category {
  background: var(--red);
  color: var(--white);
  border-color: transparent;
  font-weight: 600;
}
.article-header .blog-breadcrumb a,
.article-header .blog-breadcrumb span {
  color: rgba(255, 255, 255, 0.68);
}
.article-header .blog-breadcrumb a:hover {
  color: var(--white);
}


/* ════════════════════════════════════════════════════════════
   MARGEN LATERAL EN MOVIL — 31-ago-2026
   .article-body tenia padding lateral 0. En escritorio no se nota
   porque el max-width lo centra, pero por debajo de ~700px el texto
   toca el borde de la pantalla y se vuelve incomodo de leer.
   El lector es un conductor con el celular, muchas veces a plena luz
   y con una mano: el texto necesita respirar.
   ════════════════════════════════════════════════════════════ */
.article-body,
.article-cta,
.article-wrapper > .blog-main {
  padding-left: 20px;
  padding-right: 20px;
}

@media (min-width: 720px) {
  .article-body,
  .article-cta,
  .article-wrapper > .blog-main {
    padding-left: 24px;
    padding-right: 24px;
  }
}

/* Las tablas mantienen su scroll propio y se salen al borde a proposito,
   para aprovechar todo el ancho en pantallas pequenas */
@media (max-width: 719px) {
  .article-body .table-wrap {
    margin-left: -20px;
    margin-right: -20px;
    padding-left: 20px;
    padding-right: 20px;
  }
}


/* El .article-wrapper reservaba espacio para el navbar fijo, pero ahora
   el .article-header va FUERA del wrapper y ya lo reserva el mismo.
   Sin esto quedan ~150px de hueco blanco entre la cabecera y el texto. */
.article-wrapper {
  padding-top: 0;
}
.article-body {
  padding-top: 40px;
}


/* ════════════════════════════════════════════════════════════
   ICONOS DE REDES EN EL NAVBAR DEL BLOG — 31-ago-2026
   En la home el navbar es transparente sobre el hero y los iconos
   van en blanco. Aqui el navbar es SIEMPRE oscuro (#navbar arriba),
   pero los iconos heredaban el gris que styles.css usa para el
   estado scrolled sobre fondo claro: gris sobre azul oscuro =
   practicamente invisibles. Se fuerzan a claro en todo el blog.
   ════════════════════════════════════════════════════════════ */
#navbar .nav-social .social-link {
  color: rgba(255, 255, 255, 0.85);
}
#navbar .nav-social .social-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.16);
}