/*
 * blog.css — Estilos específicos de blog.html
 * Jonathan Reyes · yosoyjonathanreyes.com
 *
 * Requiere: styles.css (cargado antes en el HTML)
 * Usa las mismas variables CSS, nav y footer de styles.css.
 *
 * Secciones:
 *   1. Hero del blog
 *   2. Barra de filtros
 *   3. Sección principal de artículos
 *   4. Tarjeta destacada (featured)
 *   5. Grid de tarjetas de blog
 */


/* ─────────────────────────────────────────
   1. HERO DEL BLOG
   Encabezado de página con título y subtítulo
   ───────────────────────────────────────── */
#blog-hero {
  position: relative;
  min-height: 52vh;
  background: var(--navy);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  padding: 0 0 80px;
}

.blog-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  padding: 130px 64px 0;
}

/* Texto en cursiva Great Vibes sobre el título */
.blog-hero-script {
  font-family: 'Great Vibes', cursive;
  font-size: clamp(24px, 2.5vw, 34px);
  color: var(--green);
  line-height: 1;
  margin-bottom: 10px;
}

.blog-hero-title {
  font-size: clamp(48px, 6vw, 80px);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 20px;
}

.blog-hero-sub {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--text-mid);
  max-width: 520px;
}

@media (max-width: 768px) {
  .blog-hero-inner { padding: 120px 24px 0; }
  #blog-hero { padding-bottom: 56px; }
}


/* ─────────────────────────────────────────
   2. BARRA DE FILTROS
   Sticky bajo el nav, con botones de categoría
   ───────────────────────────────────────── */
.filters-bar {
  position: sticky;
  top: 65px;    /* altura del nav */
  z-index: 100;
  background: rgba(5, 5, 9, 0.92);
  backdrop-filter: blur(20px) saturate(140%);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 16px 64px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.filters-label {
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-low);
  margin-right: 4px;
}

.filter-btn {
  padding: 7px 16px;
  border-radius: 100px;
  font-family: 'Lato', sans-serif;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s;
  outline: none;
}

/* Estado activo — verde sólido */
.filter-btn.active {
  background: var(--green);
  color: #000;
  border: 1px solid transparent;
}

/* Estado inactivo — borde translúcido */
.filter-btn.inactive {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-mid);
}
.filter-btn.inactive:hover {
  border-color: rgba(255, 255, 255, 0.28);
  color: var(--text);
}

@media (max-width: 768px) {
  .filters-bar { padding: 14px 20px; }
}


/* ─────────────────────────────────────────
   3. SECCIÓN PRINCIPAL DE ARTÍCULOS
   ───────────────────────────────────────── */
#blog-section {
  position: relative;
  background: var(--navy-2);
}

.blog-inner {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 64px 100px;
}

@media (max-width: 768px) {
  .blog-inner { padding: 48px 20px 80px; }
}


/* ─────────────────────────────────────────
   4. TARJETA DESTACADA (FEATURED)
   Tarjeta ancha en dos columnas: imagen | texto
   ───────────────────────────────────────── */
.blog-featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-b);
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 32px;
  transition: border-color 0.3s, transform 0.3s;
}
.blog-featured:hover {
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-3px);
}

/* Área de imagen de la tarjeta destacada */
.blog-featured-img {
  position: relative;
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
  color: var(--text-low);
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  min-height: 320px;
  border-right: 1px solid var(--glass-b);
}
.blog-featured-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Badge "Destacado" */
.featured-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  padding: 5px 14px;
  background: var(--green);
  border-radius: 100px;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #000;
  z-index: 2;
}

/* Cuerpo de texto de la tarjeta destacada */
.blog-featured-body {
  padding: 44px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Metadatos del artículo (categoría · fecha · tiempo de lectura) */
.blog-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.blog-cat  { font-size: 10px; font-weight: 900; letter-spacing: 0.14em; text-transform: uppercase; color: var(--green); }
.blog-date { font-size: 12px; color: var(--text-low); }
.blog-read { font-size: 11px; color: var(--text-low); }
.blog-dot  { width: 3px; height: 3px; border-radius: 50%; background: var(--text-low); flex-shrink: 0; }

.blog-featured-body h2 {
  font-size: 26px;
  font-weight: 900;
  color: #F1F5F9;
  line-height: 1.3;
  margin-bottom: 14px;
}
.blog-featured-body p {
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.8;
  margin-bottom: 28px;
}

/* Enlace "Leer artículo" con flecha animada */
.blog-read-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
}
.blog-read-link svg { transition: transform 0.25s var(--ease); }
.blog-featured:hover .blog-read-link svg { transform: translateX(4px); }

/* Featured responsive */
@media (max-width: 768px) {
  .blog-featured { grid-template-columns: 1fr; }
  .blog-featured-img { min-height: 220px; border-right: none; border-bottom: 1px solid var(--glass-b); }
  .blog-featured-body { padding: 28px 24px; }
}


/* ─────────────────────────────────────────
   5. GRID DE TARJETAS DE BLOG
   ───────────────────────────────────────── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.blog-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-b);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s;
  display: flex;
  flex-direction: column;
}
.blog-card:hover {
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-4px);
}

/* Área de imagen de la tarjeta */
.blog-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-low);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--glass-b);
  position: relative;
  overflow: hidden;
}
.blog-card-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Cuerpo de la tarjeta */
.blog-card-body { padding: 22px 22px 16px; flex: 1; }
.blog-card-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: #F1F5F9;
  line-height: 1.35;
  margin-bottom: 10px;
}
.blog-card-body p {
  font-size: 13px;
  color: var(--text-mid);
  line-height: 1.7;
}

/* Badge "Historial" para artículos antiguos */
.historial-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 12px;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-low);
}

/* Footer de la tarjeta: tiempo de lectura + flecha */
.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin-top: auto;
}
.blog-time  { font-size: 11px; color: var(--green-dim); font-weight: 700; }
.blog-arrow { color: var(--text-low); transition: color 0.25s, transform 0.25s; }
.blog-card:hover .blog-arrow { color: var(--green); transform: translateX(3px); }

/* Grid responsive */
@media (max-width: 768px) {
  .blog-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
}
@media (max-width: 560px) {
  .blog-grid { grid-template-columns: 1fr; }
}