/* ===========================================================================
   blog.css — índice de notas de campo
   =========================================================================== */

.blog-hero {
  padding-top: calc(var(--head-h) + clamp(56px, 9vw, 118px));
  padding-bottom: clamp(30px, 5vw, 56px);
}

.blog-title {
  font-size: clamp(44px, 9vw, 140px);
  font-weight: 900;
  letter-spacing: -0.046em;
  line-height: 0.86;
  text-transform: lowercase;
  margin-block: clamp(18px, 3vw, 30px) clamp(20px, 3vw, 32px);
}

.blog-lead {
  font-size: clamp(16px, 1.35vw, 18.5px);
  line-height: 1.78;
  color: var(--para);
  max-width: 56ch;
}

.blog-stats {
  display: flex;
  gap: clamp(18px, 3vw, 46px);
  flex-wrap: wrap;
  margin-top: clamp(28px, 4vw, 46px);
  padding-top: 20px;
  border-top: 1px solid var(--line-2);
}

.stat-num {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--brand);
}

.stat-label {
  display: block;
  margin-top: 7px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dim-2);
}

/* ------------------------------------------------------------- filtros -- */
.toolbar {
  position: sticky;
  top: var(--head-h);
  z-index: 30;
  background: rgba(8, 8, 10, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-block: 1px solid var(--line);
  padding-block: 14px;
  transition: top 0.45s var(--ease);
}

/* si la cabecera se retira al bajar, la barra ocupa su sitio: si no, quedaría
   flotando con una franja de contenido pasando por encima */
body.nav-up .toolbar { top: 0; }

.toolbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.chips { display: flex; gap: 8px; flex-wrap: wrap; }

.chip {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 15px;
  color: var(--muted-2);
  transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}
.chip:hover { color: var(--text); border-color: var(--line-3); }
.chip.is-on { background: var(--brand); border-color: var(--brand); color: #fff; }

.search {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 16px;
  min-width: 220px;
  transition: border-color 0.3s ease;
}
.search:focus-within { border-color: var(--brand-line); }

.search svg { flex: none; opacity: 0.5; }

.search input {
  flex: 1;
  background: none;
  border: 0;
  outline: none;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 13.5px;
}
.search input::placeholder { color: var(--dim-2); }

/* ------------------------------------------------------------ listado -- */
.posts {
  padding-block: clamp(34px, 5vw, 64px) var(--pad-y);
}

.posts-count {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dim-2);
  margin-bottom: 24px;
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 316px), 1fr));
  gap: clamp(16px, 1.8vw, 26px);
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--surface);
  backdrop-filter: blur(9px);
  -webkit-backdrop-filter: blur(9px);
  transition: border-color 0.45s ease, transform 0.5s var(--ease), opacity 0.4s ease;
  animation: cardIn 0.7s var(--ease) both;
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(26px) scale(0.985); }
  to   { opacity: 1; transform: none; }
}

.card:hover { border-color: var(--c); transform: translateY(-6px); }

.card::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--c) 14%, transparent), transparent 66%);
  opacity: 0;
  transition: opacity 0.45s ease;
}
.card:hover::after { opacity: 1; }

.card-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--g);
}

.card-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.06) brightness(0.8);
  opacity: 0.72;
  transform: scale(1.02);
  transition: filter 0.8s var(--ease), opacity 0.5s ease, transform 1.1s var(--ease);
}
.card:hover .card-media img { filter: grayscale(0) contrast(1.02) brightness(0.95); opacity: 1; transform: scale(1.07); }

.card-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8,8,10,0.92), transparent 62%);
}

.card-accent {
  position: absolute;
  left: 0; bottom: 0;
  height: 3px; width: 22%;
  background: var(--c);
  z-index: 2;
  transition: width 0.75s var(--ease), box-shadow 0.5s ease;
}
.card:hover .card-accent { width: 100%; box-shadow: 0 0 20px var(--c); }

.card-cat {
  position: absolute;
  top: 12px; left: 13px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: rgba(8, 8, 10, 0.72);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 11px;
  color: var(--c);
  backdrop-filter: blur(6px);
}

.card-body { padding: 18px 19px 22px; display: flex; flex-direction: column; gap: 11px; flex: 1; }

.card-date {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim-2);
}

.card-title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.026em;
  line-height: 1.22;
  transition: color 0.35s ease;
}
.card:hover .card-title { color: var(--text); }

.card-desc {
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--dim);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-foot {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line-2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim-2);
}

.card-foot i {
  font-style: normal;
  color: var(--c);
  transition: transform 0.4s var(--ease);
}
.card:hover .card-foot i { transform: translateX(5px); }

/* destacado */
.card.is-featured {
  grid-column: 1 / -1;
  flex-direction: row;
  align-items: stretch;
}
.card.is-featured .card-media { flex: 0 0 46%; aspect-ratio: auto; }
.card.is-featured .card-body { padding: clamp(24px, 3vw, 40px); justify-content: center; gap: 14px; }
.card.is-featured .card-title { font-size: clamp(24px, 3vw, 38px); line-height: 1.08; letter-spacing: -0.035em; }
.card.is-featured .card-desc { font-size: 16px; -webkit-line-clamp: 4; max-width: 56ch; }

@media (max-width: 860px) {
  .card.is-featured { flex-direction: column; }
  .card.is-featured .card-media { flex: none; aspect-ratio: 16 / 9; }
}

.empty {
  padding: 60px 0;
  text-align: center;
  color: var(--dim);
  font-size: 14px;
}
.empty b { display: block; font-family: var(--font-display); font-size: 23px; color: var(--text); margin-bottom: 10px; }