/*!
 * CHP-WEB-BLOG-PRO-02A - buscador y temas visibles en el indice de «Sopa de letras».
 * Hoja propia, encolada solo en el indice del blog. Todas las reglas cuelgan de .chp-index-tools.
 * Usa los tokens de :root de main.css (--ink, --ink-2, --line, --paper, --paper-2, --red, --font-ui, --font-mono).
 * Rollback = borrar este archivo.
 */

/* Descripcion editorial y bloque de herramientas: dos filas completas de la grilla (CHP-WEB-BLOG-PRO-05A). */
.blog-board__grid > .chp-index-intro,
.blog-board__grid > .chp-index-tools {
  grid-column: 1 / -1;
}

/* Bajo el titulo: parrafo sobrio, medida corta para que se lea, sin competir con el h1. */
.chp-index-intro {
  max-width: 62ch;
  margin: 0 0 clamp(1.5rem, 3vw, 2.2rem);
  font-family: var(--font-ui, sans-serif);
  font-size: clamp(1rem, 1.15vw, 1.08rem);
  line-height: 1.65;
  color: var(--ink-2, #6A6A66);
  text-wrap: pretty;
}

.chp-index-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.25rem 2rem;
  margin: 0 0 .5rem;
  padding: 0 0 1.4rem;
  border-bottom: 1px solid var(--line, rgba(20, 20, 20, .16));
  font-family: var(--font-ui, sans-serif);
}

.chp-index-tools__label {
  display: block;
  margin: 0 0 .5rem;
  font-family: var(--font-mono, monospace);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-2, #6A6A66);
}

/* --- buscador --- */

.chp-index-tools__search {
  flex: 1 1 22rem;
  max-width: 34rem;
  margin: 0;
}

.chp-index-tools__field {
  display: flex;
  gap: .5rem;
}

.chp-index-tools__input {
  flex: 1 1 auto;
  min-width: 0;
  height: 44px;
  padding: 0 .85rem;
  border: 1px solid var(--ink, #141414);
  border-radius: 0;
  background: var(--paper, #fff);
  color: var(--ink, #141414);
  font: inherit;
  font-size: .95rem;
  -webkit-appearance: none;
  appearance: none;
}

.chp-index-tools__input::placeholder {
  color: var(--ink-2, #6A6A66);
  opacity: 1;
}

.chp-index-tools__input:focus-visible,
.chp-index-tools__submit:focus-visible,
.chp-index-tools__topic:focus-visible {
  outline: 3px solid var(--red, #E52521);
  outline-offset: 2px;
}

.chp-index-tools__submit {
  flex: 0 0 auto;
  height: 44px;
  margin: 0;
  padding: 0 1.1rem;
  border: 1px solid var(--ink, #141414);
  border-radius: 0;
  background: var(--ink, #141414);
  color: var(--paper, #fff);
  font: inherit;
  font-size: .88rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}

.chp-index-tools__submit:hover {
  background: var(--red, #E52521);
  border-color: var(--red, #E52521);
}

/* --- temas --- */

.chp-index-tools__topics {
  flex: 1 1 26rem;
  margin: 0;
}

.chp-index-tools__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.chp-index-tools__list li {
  margin: 0;
  padding: 0;
}

.chp-index-tools__topic {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: .45rem .9rem;
  border: 1px solid var(--ink, #141414);
  background: transparent;
  color: var(--ink, #141414);
  font-size: .82rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  transition: background .15s ease, color .15s ease;
}

.chp-index-tools__topic:hover {
  background: var(--ink, #141414);
  color: var(--paper, #fff);
}

@media (max-width: 640px) {
  .chp-index-tools {
    gap: 1.1rem;
  }
  .chp-index-tools__search,
  .chp-index-tools__topics {
    flex: 1 1 100%;
    max-width: none;
  }
  .chp-index-tools__field {
    flex-wrap: wrap;
  }
  .chp-index-tools__input {
    flex: 1 1 100%;
  }
  .chp-index-tools__submit {
    flex: 1 1 100%;
  }
  .chp-index-tools__list {
    gap: .45rem;
  }
  .chp-index-tools__topic {
    padding: .45rem .75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chp-index-tools__submit,
  .chp-index-tools__topic {
    transition: none;
  }
}