/* ==========================================================================
   main.css — Estilos complementarios y componentes adicionales
   ========================================================================== */

/* ── Formulario de búsqueda del header ── */
.header-search-toggle {
  display: flex;
  align-items: center;
  padding: var(--space-2);
  color: var(--color-gray-3);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.header-search-toggle:hover { color: var(--color-white); background: rgba(255,255,255,.08); }

.header-search {
  background: var(--color-dark-3);
  border-top: 1px solid rgba(255,255,255,.08);
  padding-block: var(--space-4);
}

.header-search form {
  display: flex;
  gap: var(--space-2);
  max-width: 600px;
  margin-inline: auto;
}

.header-search__input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-size: var(--font-size-sm);
  outline: none;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.header-search__input::placeholder { color: rgba(255,255,255,.45); }
.header-search__input:focus {
  border-color: var(--color-primary);
  background: rgba(255,255,255,.15);
}

.header-search__btn {
  padding: var(--space-3) var(--space-4);
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
  flex-shrink: 0;
}
.header-search__btn:hover { background: var(--color-primary-dark); }

/* ── Búsqueda en página search.php ── */
.search-form-full {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  max-width: 600px;
}

.search-form-full input[type="search"] {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-gray-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-form-full input[type="search"]:focus {
  border-color: var(--color-primary);
}

.search-form-full button {
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: .06em;
  transition: background var(--transition-fast);
}

.search-form-full button:hover { background: var(--color-primary-dark); }

/* ── Comentarios ── */
.comment-list { padding: 0; }

.comment {
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-gray-5);
}

.comment:last-child { border-bottom: none; }

.comment-body { display: flex; gap: var(--space-4); }

.comment-author { flex-shrink: 0; }
.comment-author img { border-radius: 50%; }

.comment-meta {
  font-size: var(--font-size-xs);
  color: var(--color-gray-2);
  margin-bottom: var(--space-2);
}

.comment-content { font-size: var(--font-size-sm); line-height: var(--line-height-normal); }

.comment-reply-link {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.comment-form label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-1);
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-gray-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-fast);
  outline: none;
}

.comment-form input:focus,
.comment-form textarea:focus { border-color: var(--color-primary); }

.comment-form textarea { min-height: 120px; resize: vertical; }

.form-submit input[type="submit"] {
  padding: var(--space-3) var(--space-8);
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: .06em;
  cursor: pointer;
  transition: background var(--transition-fast);
  border: none;
}

.form-submit input[type="submit"]:hover { background: var(--color-primary-dark); }

/* ── Notificación "Enlace copiado" ── */
.copy-toast {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-dark);
  color: var(--color-white);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  z-index: 9999;
  box-shadow: var(--shadow-lg);
  transition: transform 300ms cubic-bezier(.34,1.56,.64,1);
  pointer-events: none;
  white-space: nowrap;
}
.copy-toast.is-visible { transform: translateX(-50%) translateY(0); }

/* ── Sticky sidebar para desktop ── */
@media (min-width: 1025px) {
  .sidebar-sticky {
    position: sticky;
    top: calc(4rem + var(--space-4));
    max-height: calc(100vh - 5rem);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--color-gray-4) transparent;
  }
}

/* ── Indicador de progreso de lectura ── */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--color-primary);
  z-index: 9999;
  width: 0%;
  transition: width 100ms linear;
  pointer-events: none;
}

/* ── Back to top ── */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-6);
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 100;
  cursor: pointer;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--color-primary-dark); transform: translateY(-3px); }

/* ── No results ── */
.no-results {
  text-align: center;
  padding: var(--space-16) var(--space-4);
  color: var(--color-gray-2);
}

/* ── Página estática ── */
.page-single { max-width: var(--content-max); }

/* ── Dropdown arrow en menú ── */
.dropdown-arrow {
  display: inline-block;
  margin-left: var(--space-1);
  vertical-align: middle;
  transition: transform var(--transition-fast);
}
.has-children:hover > a .dropdown-arrow { transform: rotate(180deg); }

/* ── Lazy load blur-up ── */
img[loading="lazy"] {
  transition: opacity 400ms ease;
}

/* ── Accesibilidad: foco visible ── */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ── Animación de entrada para cards ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0);    }
}

.news-card.js-animate {
  animation: fadeInUp 400ms ease forwards;
}

/* ── Dark mode (preparado, activable) ── */
@media (prefers-color-scheme: dark) {
  :root.auto-dark {
    --color-bg:      #111111;
    --color-surface: #1e1e1e;
    --color-dark:    #f5f5f5;
    --color-gray-1:  #c0c0c0;
    --color-gray-2:  #a0a0a0;
    --color-gray-5:  #2a2a2a;
    --color-gray-4:  #3a3a3a;
  }
}