/* =========================================================
   CATEGORÍAS / MARCAS — patrón índice
   ========================================================= */

.idx-hero {
  background: var(--tpm-header-bg);
  border-bottom: 1px solid var(--tpm-border);
  padding: 52px 24px 40px;
  text-align: center;
}
.idx-hero h1 {
  font-family: 'Source Serif 4', 'Roboto', serif;
  font-size: 38px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
}
.idx-hero p {
  font-size: 15px;
  color: var(--tpm-text-muted);
  margin: 0;
  max-width: 540px;
  margin-left: auto; margin-right: auto;
}

.idx-filterbar {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--tpm-bg);
  border-bottom: 1px solid var(--tpm-border);
  padding: 14px 24px;
}
.idx-filterbar__inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex; align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.idx-filterbar__search {
  flex: 1;
  min-width: 240px;
  max-width: 400px;
  display: flex; align-items: center;
  gap: 8px;
  background: var(--tpm-surface);
  border: 1px solid var(--tpm-border);
  border-radius: 8px;
  padding: 0 12px;
  height: 38px;
  transition: border-color 0.12s ease;
}
.idx-filterbar__search:focus-within { border-color: var(--tpm-blue); }
.idx-filterbar__search svg { width: 13px; height: 13px; color: var(--tpm-text-faint); }
.idx-filterbar__search input {
  flex: 1; border: 0; background: transparent; outline: none;
  font: inherit; font-size: 14px; color: var(--tpm-text);
  min-width: 0;
}
.idx-filterbar__search input::placeholder { color: var(--tpm-text-faint); }
.idx-filterbar__count {
  font-size: 13px;
  color: var(--tpm-text-muted);
  margin-left: auto;
}
.idx-filterbar__count strong { color: var(--tpm-text); font-weight: 700; font-variant-numeric: tabular-nums; }

.idx-alpha {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 16px 24px;
  max-width: 1280px;
  margin: 0 auto;
  border-bottom: 1px solid var(--tpm-border);
}
.idx-alpha a {
  font-size: 12.5px;
  font-weight: 500;
  font-family: 'Roboto Mono', ui-monospace, monospace;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border-radius: 4px;
  text-decoration: none;
  color: var(--tpm-text-muted);
  transition: background 0.12s ease, color 0.12s ease;
}
.idx-alpha a:hover {
  background: var(--tpm-surface-alt);
  color: var(--tpm-text);
}

.idx-page { max-width: 1280px; margin: 0 auto; padding: 36px 24px 80px; }
.idx-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}

.idx-card {
  display: flex; flex-direction: column;
  padding: 22px;
  background: var(--tpm-surface);
  border: 1px solid var(--tpm-border);
  border-radius: var(--tpm-radius);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.idx-card:hover { border-color: var(--tpm-border-strong); box-shadow: var(--tpm-shadow-hover); }
.idx-card__head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--tpm-border);
}
.idx-card__title {
  font-family: 'Source Serif 4', 'Roboto', serif;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--tpm-text);
}
.idx-card__title a { color: inherit; text-decoration: none; }
.idx-card__title a:hover { color: var(--tpm-blue-dark); }
body.dark-mode .idx-card__title a:hover,
.dark-mode .idx-card__title a:hover { color: var(--tpm-blue); }
.idx-card__count {
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--tpm-text-faint);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.idx-card__count strong { color: var(--tpm-text); font-weight: 700; }
.idx-card__subs {
  list-style: none;
  margin: 0; padding: 0;
  display: flex; flex-direction: column;
  gap: 6px;
  flex: 1;
}
.idx-card__subs a {
  display: flex; align-items: baseline;
  gap: 6px;
  text-decoration: none;
  color: var(--tpm-text);
  font-size: 13.5px;
  padding: 4px 0;
  transition: color 0.12s ease;
}
.idx-card__subs a:hover { color: var(--tpm-blue-dark); }
body.dark-mode .idx-card__subs a:hover,
.dark-mode .idx-card__subs a:hover { color: var(--tpm-blue); }
.idx-card__subs a::before {
  content: '›';
  color: var(--tpm-text-faint);
  font-weight: 400;
}
.idx-card__more {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--tpm-border);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--tpm-blue-dark);
  text-decoration: none;
}
.idx-card__more:hover { text-decoration: underline; text-underline-offset: 2px; }
.idx-card__more svg { width: 10px; height: 10px; }
body.dark-mode .idx-card__more,
.dark-mode .idx-card__more { color: var(--tpm-blue); }
.idx-card--hot .idx-card__count { color: var(--tpm-blue-dark); }
body.dark-mode .idx-card--hot .idx-card__count,
.dark-mode .idx-card--hot .idx-card__count { color: var(--tpm-blue); }
.idx-card--hot .idx-card__count strong { color: inherit; }

/* Brand index variant — sin subs, solo nombre + count */
.idx-brand-section { margin-bottom: 48px; }
.idx-brand-section__letter {
  font-family: 'Roboto Mono', ui-monospace, monospace;
  font-size: 32px; font-weight: 500;
  color: var(--tpm-blue);
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--tpm-border);
}
.idx-brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px 24px;
}
.idx-brand-link {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--tpm-text);
  font-size: 14px;
  font-weight: 500;
  transition: background 0.12s ease, color 0.12s ease;
}
.idx-brand-link:hover { background: var(--tpm-surface); color: var(--tpm-blue-dark); }
body.dark-mode .idx-brand-link:hover,
.dark-mode .idx-brand-link:hover { color: var(--tpm-blue); }
.idx-brand-link__count {
  font-size: 11.5px;
  color: var(--tpm-text-faint);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 768px) {
  .idx-hero h1 { font-size: 28px; }
  .idx-hero { padding: 36px 20px 28px; }
  .idx-filterbar { padding: 12px 16px; }
  .idx-filterbar__count { display: none; }
  .idx-page { padding: 24px 16px 56px; }
  .idx-grid { gap: 14px; }
  .idx-alpha { display: none; }
}