/* =====================================================================
   PrevCS · Paginas "standalone" (solo header, sin sidebar)
   Usadas por Stock (stock/index.php) y Ayuda (ayuda/index.php).
   Toman los tokens de styles.css, asi que siguen el modo claro/oscuro.
   ===================================================================== */

.standalone {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--content-gap);
  padding-bottom: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--content-gap);
  min-height: calc(100vh - var(--header-height));
}

/* Variante embebida: la pagina de Stock vive dentro del shell con sidebar
   (.page > .content-area), asi que el ancho, el padding y el alto minimo los
   maneja la grilla — aca solo queda la tipografia y el estado vacio. */
.standalone--embedded {
  max-width: none;
  margin: 0;
  padding: 0;
  min-height: 0;
}

/* Barra superior con el boton Volver */
.standalone__bar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* Hereda .btn .btn--secondary: mismos estilos que el resto de la app. */
.standalone__back svg {
  width: 17px;
  height: 17px;
}

.standalone__head {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.standalone__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  color: var(--text-muted);
}
.standalone__head h1 {
  margin: 0;
  font-size: clamp(1.6rem, 1.2rem + 1.6vw, var(--font-size-3xl));
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
}
.standalone__head p {
  margin: 0;
  color: var(--text-secondary);
  font-size: var(--font-size-md);
  max-width: 62ch;
}

/* =====================================================================
   Ayuda · navegacion interna + acordeon de preguntas frecuentes
   ===================================================================== */
.help {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  padding-block: var(--space-md);
}

.help__head { text-align: center; }
.help__head .standalone__head { align-items: center; }
.help__head p { margin-inline: auto; }

/* Menu de navegacion simple (items demo, href="#") */
.help__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--hair);
  border-radius: var(--radius-pill);
  background: var(--bg-card);
}
.help__nav a {
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-muted);
  white-space: nowrap;
  transition: color var(--transition-fast), background var(--transition-fast);
}
.help__nav a:hover {
  color: var(--text-primary);
  background: color-mix(in oklab, var(--text-primary) 7%, transparent);
}
.help__nav a:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-ring);
}

.help__section {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  scroll-margin-top: calc(var(--header-height) + var(--space-md));
}
.help__section-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Acordeon: <details> nativo, animado con grid-template-rows 0fr -> 1fr */
.help__accordion {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq {
  border: 1px solid var(--hair);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.faq:hover { border-color: var(--hair-2); }
.faq[open] {
  border-color: var(--hair-2);
  box-shadow: var(--card-shadow);
}

.faq__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  transition: background var(--transition-fast);
}
.faq__summary::-webkit-details-marker { display: none; }
.faq__summary:hover { background: color-mix(in oklab, var(--text-primary) 4%, transparent); }
.faq__summary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-ring) inset;
}

.faq__icon {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  color: var(--text-muted);
  transition: transform 280ms cubic-bezier(.22, 1, .36, 1), color var(--transition-fast);
}
.faq__icon svg { width: 20px; height: 20px; }
.faq[open] .faq__icon {
  transform: rotate(180deg);
  color: var(--text-primary);
}

.faq__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 300ms cubic-bezier(.22, 1, .36, 1);
}
.faq[open] .faq__panel { grid-template-rows: 1fr; }

/* Con JS el acordeon retiene [open] durante el cierre para poder animarlo:
   mientras no tenga .is-open el panel vuelve a 0fr y el icono a 0deg.
   Sin JS mandan las reglas de arriba y el <details> abre/cierra igual. */
.help__accordion.is-enhanced .faq[open]:not(.is-open) .faq__panel { grid-template-rows: 0fr; }
.help__accordion.is-enhanced .faq[open]:not(.is-open) .faq__icon {
  transform: none;
  color: var(--text-muted);
}
.help__accordion.is-enhanced .faq[open]:not(.is-open) { box-shadow: none; }
.faq__panel-inner {
  overflow: hidden;
  min-height: 0;
}
.faq__panel p {
  margin: 0;
  padding: 0 16px 16px;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
}

@media (max-width: 560px) {
  .help__nav {
    border-radius: var(--radius-lg);
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .help__nav::-webkit-scrollbar { display: none; }
  .faq__summary { padding: 12px 14px; font-size: var(--font-size-sm); }
  .faq__panel p { padding: 0 14px 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .faq__panel,
  .faq__icon { transition-duration: 1ms; }
}