/* ==========================================================================
   Premium Accordion widget
   BEM: .jsf-accordion, .jsf-accordion-item, .jsf-accordion-*
   Style variants via prefix classes: --style-classic/bordered/minimal/
   glass/card/filled/gradient/modern/floating/compact
   Uses logical CSS properties throughout for RTL support, and CSS
   variables so a dark-mode override only needs to redefine tokens.
   ========================================================================== */

.jsf-accordion-wrap {
  width: 100%;
}

.jsf-accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  list-style: none;
  margin: 0;
  padding: 0;
}

.jsf-accordion-item {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.jsf-accordion-heading {
  margin: 0;
}

.jsf-accordion-header {
  display: flex;
  align-items: center;
  width: 100%;
  gap: 16px;
  padding: 20px 24px;
  background: transparent;
  border: none;
  text-align: start;
  cursor: pointer;
  font-family: var(--font-body);
}

.jsf-accordion--icon-left .jsf-accordion-header {
  flex-direction: row-reverse;
  justify-content: flex-end;
}

.jsf-accordion--icon-left .jsf-accordion-title {
  margin-inline-end: auto;
}

.jsf-accordion--icon-right .jsf-accordion-title {
  margin-inline-end: auto;
}

.jsf-accordion-number {
  flex-shrink: 0;
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  color: var(--color-light);
  font-variant-numeric: tabular-nums;
}

.jsf-accordion-item-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.jsf-accordion-item-icon svg {
  width: 20px;
  height: 20px;
  max-width: none;
}

.jsf-accordion-title {
  font-family: var(--font-heading);
  font-weight: var(--fw-semibold);
  color: var(--color-heading);
  transition: color var(--transition-fast);
}

.jsf-accordion-badge {
  flex-shrink: 0;
  display: inline-flex;
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-full);
  padding: 2px 10px;
  background: var(--color-highlight);
  color: var(--color-primary);
}

/* ---------- Expand/collapse icon ---------- */

.jsf-accordion-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  color: var(--color-primary);
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.jsf-accordion-icon svg,
.jsf-accordion-icon i {
  flex-shrink: 0;
}

.jsf-accordion-icon__active {
  display: none;
}

.jsf-accordion-item.is-open .jsf-accordion-icon__normal {
  display: none;
}

.jsf-accordion-item.is-open .jsf-accordion-icon__active {
  display: inline-flex;
}

/* Rotation mode: keep both icon states as the same glyph, rotate instead of swapping */
.jsf-accordion--icon-rotate-yes .jsf-accordion-icon__active {
  display: none !important;
}

.jsf-accordion--icon-rotate-yes .jsf-accordion-item.is-open .jsf-accordion-icon__normal {
  display: inline-flex !important;
}

.jsf-accordion--icon-rotate-yes .jsf-accordion-item.is-open .jsf-accordion-icon {
  transform: rotate(var(--jsf-icon-rotate, 135deg));
}

/* Icon background shapes */

.jsf-accordion--icon-shape-circle .jsf-accordion-icon { border-radius: var(--radius-full); }
.jsf-accordion--icon-shape-square .jsf-accordion-icon { border-radius: 0; }
.jsf-accordion--icon-shape-rounded .jsf-accordion-icon { border-radius: var(--radius-sm); }

/* ---------- Body (height-animated by JS via inline max-height / grid-rows) ---------- */

.jsf-accordion-body {
  overflow: hidden;
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition);
}

.jsf-accordion-body[hidden] {
  display: none;
}

.jsf-accordion-item.is-open .jsf-accordion-body {
  grid-template-rows: 1fr;
}

.jsf-accordion-body__inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 0;
  overflow: hidden;
  padding: 0 24px 20px;
}

.jsf-accordion-divider {
  display: block;
  border-top: 1px solid var(--color-border);
  margin: 0 24px 16px;
}

.jsf-accordion-content {
  font-family: var(--font-body);
  color: var(--color-body);
  line-height: var(--lh-body);
}

.jsf-accordion-content > *:first-child { margin-top: 0; }
.jsf-accordion-content > *:last-child { margin-bottom: 0; }

.jsf-accordion-media img {
  width: 100%;
  border-radius: var(--radius-md);
}

.jsf-accordion-media--video {
  position: relative;
  aspect-ratio: 16 / 9;
}

.jsf-accordion-media--video iframe {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-md);
}

.jsf-accordion-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.jsf-accordion-actions:empty {
  display: none;
}

.jsf-accordion-copy-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-small);
  color: var(--color-light);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.jsf-accordion-copy-link svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  max-width: none;
}

.jsf-accordion-copy-link:hover {
  color: var(--color-primary);
}

.jsf-accordion-copy-link.is-copied {
  color: var(--color-secondary);
}

/* Content entrance animation (fires when the item opens) */

.jsf-accordion[data-content-entrance="true"] .jsf-accordion-body__inner {
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity var(--transition), transform var(--transition);
}

.jsf-accordion[data-content-entrance="true"] .jsf-accordion-item.is-open .jsf-accordion-body__inner {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Toolbar (expand all / collapse all) ---------- */

.jsf-accordion-toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.jsf-accordion-toolbar__btn {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-body);
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.jsf-accordion-toolbar__btn:hover {
  border-color: var(--color-secondary);
  color: var(--color-primary);
}

/* ---------- Loading skeleton (used while dynamic content is fetched) ---------- */

.jsf-accordion-item.is-loading .jsf-accordion-title,
.jsf-accordion-item.is-loading .jsf-accordion-content {
  position: relative;
  color: transparent !important;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-border);
}

.jsf-accordion-item.is-loading .jsf-accordion-title::after,
.jsf-accordion-item.is-loading .jsf-accordion-content::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .6), transparent);
  animation: jsf-accordion-skeleton 1.4s ease-in-out infinite;
}

@keyframes jsf-accordion-skeleton {
  from { transform: translateX(-100%); }
  to   { transform: translateX(100%); }
}

/* ---------- Entrance animation hook ---------- */

.jsf-accordion--animated .jsf-animate {
  opacity: 0;
  animation-play-state: paused;
}

.jsf-accordion--animated .jsf-animate.is-visible {
  animation-play-state: running;
}

/* ---------- Focus & accessibility ---------- */

.jsf-accordion-header:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: -2px;
}

.jsf-accordion-copy-link:focus-visible,
.jsf-accordion-toolbar__btn:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* ==========================================================================
   STYLE VARIANTS
   ========================================================================== */

/* Classic — default: subtle border, plain background (rules above) */

/* Bordered — thicker, more prominent border, no shadow */
.jsf-accordion--style-bordered .jsf-accordion-item {
  border-width: 2px;
  border-radius: var(--radius-md);
}

/* Minimal — no card chrome, just a bottom divider between items */
.jsf-accordion--style-minimal .jsf-accordion-item {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-border);
  border-radius: 0 !important;
}

.jsf-accordion--style-minimal .jsf-accordion-header {
  padding-inline: 0;
}

.jsf-accordion--style-minimal .jsf-accordion-body__inner {
  padding-inline: 0;
}

.jsf-accordion--style-minimal .jsf-accordion-divider {
  margin-inline: 0;
}

/* Glass — translucent, blurred */
.jsf-accordion--style-glass .jsf-accordion-item {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.jsf-accordion--glass-hover-yes.jsf-accordion--style-glass .jsf-accordion-item:hover {
  background: rgba(255, 255, 255, .7);
}

/* Card — solid card with shadow */
.jsf-accordion--style-card .jsf-accordion-item {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

/* Filled — tinted background, no border */
.jsf-accordion--style-filled .jsf-accordion-item {
  background: var(--color-highlight);
  border-color: transparent;
  border-radius: var(--radius-md);
}

/* Gradient — subtle gradient background */
.jsf-accordion--style-gradient .jsf-accordion-item {
  background-image: var(--gradient-surface);
  border-color: transparent;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.jsf-accordion--style-gradient .jsf-accordion-item.is-open {
  background-image: var(--gradient-primary);
}

.jsf-accordion--style-gradient .jsf-accordion-item.is-open .jsf-accordion-title,
.jsf-accordion--style-gradient .jsf-accordion-item.is-open .jsf-accordion-icon,
.jsf-accordion--style-gradient .jsf-accordion-item.is-open .jsf-accordion-number {
  color: var(--color-white);
}

/* Modern — large radius, generous spacing, bold active state */
.jsf-accordion--style-modern .jsf-accordion-item {
  border-radius: var(--radius-xl);
  border-color: transparent;
  box-shadow: var(--shadow-soft);
}

.jsf-accordion--style-modern .jsf-accordion-header {
  padding: 24px 28px;
}

.jsf-accordion--style-modern .jsf-accordion-item.is-open {
  box-shadow: var(--shadow-medium);
}

/* Floating — item lifts and gains shadow only while open */
.jsf-accordion--style-floating .jsf-accordion-item {
  border-radius: var(--radius-lg);
  border-color: transparent;
}

.jsf-accordion--style-floating .jsf-accordion-item.is-open {
  box-shadow: var(--shadow-large);
  transform: translateY(-4px);
}

/* Compact — tight padding, smaller type */
.jsf-accordion--style-compact .jsf-accordion-header {
  padding: 12px 16px;
  gap: 10px;
}

.jsf-accordion--style-compact .jsf-accordion-body__inner {
  padding: 0 16px 12px;
}

.jsf-accordion--style-compact .jsf-accordion-title {
  font-size: var(--fs-small);
}

/* ---------- Hover effects (independent of style) ---------- */

.jsf-accordion--hover-lift-yes .jsf-accordion-item:hover {
  transform: translateY(-3px);
}

.jsf-accordion--hover-glow-yes .jsf-accordion-item:hover {
  box-shadow: 0 0 24px 4px rgba(var(--color-secondary-rgb), .35);
}

/* ---------- Responsive ---------- */

@media (max-width: 767px) {
  .jsf-accordion-header {
    padding: 16px 18px;
    gap: 12px;
  }

  .jsf-accordion-body__inner {
    padding: 0 18px 16px;
  }

  .jsf-accordion-divider {
    margin-inline: 18px;
  }
}

/* ---------- Dark mode ----------
   Redefines the surface/text tokens this widget relies on; the rest
   of the component inherits automatically since every rule above
   reads from var(--color-*) rather than hardcoded values. */

@media (prefers-color-scheme: dark) {
  .jsf-accordion .jsf-accordion-item {
    background: rgba(255, 255, 255, .04);
    border-color: rgba(255, 255, 255, .12);
  }

  .jsf-accordion .jsf-accordion-title {
    color: rgba(255, 255, 255, .92);
  }

  .jsf-accordion .jsf-accordion-content {
    color: rgba(255, 255, 255, .68);
  }

  .jsf-accordion .jsf-accordion-divider {
    border-top-color: rgba(255, 255, 255, .12);
  }

  .jsf-accordion.jsf-accordion--style-glass .jsf-accordion-item {
    background: rgba(255, 255, 255, .06);
  }
}

/* ---------- RTL ----------
   Logical properties (text-align:start, margin-inline-*, padding-inline)
   used throughout already flip automatically; this covers the one
   physical-direction icon-position class pairing. */

[dir="rtl"] .jsf-accordion--icon-left .jsf-accordion-header {
  flex-direction: row;
}

@media (prefers-reduced-motion: reduce) {
  .jsf-accordion-item,
  .jsf-accordion-icon,
  .jsf-accordion-body,
  .jsf-accordion-body__inner,
  .jsf-animate {
    transition: none !important;
    animation: none !important;
  }
}