/* Collapse/Spoiler Component Styles */
/* Theme-aware collapsible sections for FAQ, extra options, and more */

/* Container */
.collapse-container {
  --collapse-accent: var(--primary-blue);
  position: relative !important;
  margin-bottom: 14px;
  border: none !important;
  border-radius: 22px;
  overflow: hidden !important;
  isolation: isolate;
  display: block !important;
  padding: 0 !important;
  background:
    radial-gradient(
      120% 80% at 100% 0%,
      color-mix(in srgb, var(--collapse-accent) 6%, transparent) 0%,
      transparent 60%
    ),
    var(--card-bg);
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--collapse-accent) 18%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--text-color) 4%, transparent),
    0 12px 28px -22px
      color-mix(in srgb, var(--collapse-accent) 16%, transparent);
  transition:
    box-shadow 220ms cubic-bezier(0.2, 0.8, 0.2, 1),
    background 220ms ease;
}

.collapse-container:last-child {
  margin-bottom: 0;
}

.collapse-container:hover {
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--collapse-accent) 24%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--text-color) 5%, transparent),
    0 12px 24px -20px
      color-mix(in srgb, var(--collapse-accent) 14%, transparent);
}

.collapse-container.open {
  background:
    radial-gradient(
      120% 80% at 100% 0%,
      color-mix(in srgb, var(--collapse-accent) 5%, transparent) 0%,
      transparent 60%
    ),
    var(--card-bg);
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--collapse-accent) 28%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--text-color) 6%, transparent),
    0 18px 36px -24px
      color-mix(in srgb, var(--collapse-accent) 18%, transparent);
}

body.theme-dark .collapse-container {
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--collapse-accent) 28%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--text-color) 10%, transparent),
    0 14px 28px -20px rgba(0, 0, 0, 0.55);
}

body.theme-dark .collapse-container:hover {
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--collapse-accent) 26%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--text-color) 12%, transparent),
    0 20px 34px -20px rgba(0, 0, 0, 0.62);
}

body.theme-dark .collapse-container.open {
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--collapse-accent) 30%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--text-color) 14%, transparent),
    0 26px 48px -22px rgba(0, 0, 0, 0.7);
}

/* Header/Trigger */
.collapse-header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 22px 24px;
  margin: 0 !important;
  background: transparent !important;
  border: none !important;
  border-radius: 0 !important;
  color: var(--heading-color) !important;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  user-select: none;
  transform: none !important;
  box-shadow: none !important;
}

.collapse-header:hover {
  background: transparent !important;
  color: var(--heading-color) !important;
  transform: none !important;
  box-shadow: none !important;
}

.collapse-header:focus,
.collapse-header:focus-visible {
  outline: none;
  box-shadow: none !important;
}

/* Header content */
.collapse-header-content {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
}

.collapse-header-icon {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 999px;
  background: color-mix(in srgb, var(--collapse-accent) 12%, transparent);
  box-shadow: inset 0 0 0 1px
    color-mix(in srgb, var(--collapse-accent) 24%, transparent);
  color: var(--collapse-accent) !important;
  font-size: 14px !important;
  transition:
    background 220ms ease,
    color 220ms ease,
    box-shadow 220ms ease;
}

.collapse-container:hover .collapse-header-icon {
  background: color-mix(in srgb, var(--collapse-accent) 18%, transparent);
  box-shadow: inset 0 0 0 1px
    color-mix(in srgb, var(--collapse-accent) 38%, transparent);
}

.collapse-header-title {
  flex: 1 1 auto;
  min-width: 0;
  white-space: normal;
  overflow-wrap: anywhere;
  color: var(--heading-color);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
  letter-spacing: -0.1px;
}

.collapse-header-badge {
  margin-left: 6px;
  flex-shrink: 0;
}

/* Chevron icon */
.collapse-chevron {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 999px;
  border: none;
  background: color-mix(in srgb, var(--collapse-accent) 12%, transparent);
  box-shadow: inset 0 0 0 1px
    color-mix(in srgb, var(--collapse-accent) 24%, transparent);
  color: var(--collapse-accent) !important;
  font-size: 16px !important;
  line-height: 1;
  transform-origin: center;
  transition:
    transform 380ms cubic-bezier(0.33, 1, 0.68, 1),
    background 220ms ease,
    color 220ms ease,
    box-shadow 220ms ease;
}

.collapse-container:hover .collapse-chevron {
  background: color-mix(in srgb, var(--collapse-accent) 18%, transparent);
  box-shadow: inset 0 0 0 1px
    color-mix(in srgb, var(--collapse-accent) 38%, transparent);
}

.collapse-container.open .collapse-chevron {
  transform: rotate(180deg);
  background: var(--collapse-accent);
  color: #ffffff !important;
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--collapse-accent) 50%, transparent),
    0 10px 20px -10px
      color-mix(in srgb, var(--collapse-accent) 56%, transparent);
}

/* Content */
.collapse-content {
  position: relative;
  z-index: 1;
  max-height: 0;
  width: 100%;
  overflow: hidden !important;
  transition:
    max-height 0.3s ease,
    opacity 0.2s ease;
}

.collapse-content-inner {
  position: relative;
  padding: 0 26px 24px;
  color: var(--muted-text);
  font-size: 16px;
  line-height: 1.72;
  opacity: 0;
  transform: translateY(-6px);
  transition:
    opacity 0.2s ease,
    transform 0.24s ease;
}

.collapse-content-inner
  a:not(
    .btn,
    .button,
    .button-primary,
    .button-secondary,
    .button-ghost,
    .button-danger
  ) {
  color: var(--collapse-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  font-weight: 700;
  transition:
    opacity 180ms ease,
    text-decoration-thickness 180ms ease;
}

.collapse-content-inner
  a:not(
    .btn,
    .button,
    .button-primary,
    .button-secondary,
    .button-ghost,
    .button-danger
  ):hover {
  opacity: 0.85;
  text-decoration-thickness: 2px;
}

/* Open state */
.collapse-container.open .collapse-content {
  max-height: var(--collapse-max-height, 2400px);
}

.collapse-container.open .collapse-content-inner {
  opacity: 1;
  transform: translateY(0);
}

/* Variants */
.collapse-container.variant-success {
  --collapse-accent: var(--success, #3fbf85);
}

.collapse-container.variant-warning {
  --collapse-accent: var(--warning, #f59e0b);
}

.collapse-container.variant-danger {
  --collapse-accent: var(--danger, #dc4646);
}

/* "info" is not a semantic state - it is the neutral/default emphasis, so it
   follows the project brand instead of a hardcoded blue. */
.collapse-container.variant-info {
  --collapse-accent: var(--primary-blue);
}

/* Minimal variant (borderless) */
.collapse-container.variant-minimal {
  margin-bottom: 10px;
  border: none;
  border-bottom: 1px solid var(--border-color);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  transform: none;
}

.collapse-container.variant-minimal::before,
.collapse-container.variant-minimal::after {
  display: none;
}

.collapse-container.variant-minimal .collapse-header {
  padding-left: 0;
  padding-right: 0;
  background: transparent !important;
}

.collapse-container.variant-minimal .collapse-content-inner {
  padding-left: 0;
  padding-right: 0;
}

.collapse-container.variant-minimal .collapse-content-inner::before {
  left: 0;
  right: 0;
}

.collapse-container.variant-minimal:hover {
  border-color: color-mix(in srgb, var(--collapse-accent) 28%, transparent);
}

.collapse-container.variant-minimal:hover,
.collapse-container.variant-minimal.open {
  transform: none;
}

/* Flush variant (no spacing) */
.collapse-container.variant-flush {
  margin-bottom: 0;
  border-radius: 0;
  border-left: none;
  border-right: none;
  border-top: none;
  box-shadow: none;
}

.collapse-container.variant-flush::before,
.collapse-container.variant-flush::after {
  display: none;
}

.collapse-container.variant-flush:last-child {
  border-bottom: none;
}

/* Group container */
.collapse-group {
  display: grid;
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  background: var(--card-bg);
  overflow: hidden;
}

.collapse-group.collapse-group-narrow {
  width: 75%;
  max-width: 75%;
  margin-left: auto;
  margin-right: auto;
}

.collapse-group .collapse-container {
  margin: 0;
}

.collapse-group .collapse-container:last-child {
  margin-bottom: 0;
}

/* Theme-specific adjustments */
body.theme-dark .collapse-group {
  background: var(--card-bg);
}

body.theme-light .collapse-group {
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.95) 0%,
      rgba(245, 240, 235, 0.75) 100%
    ),
    rgba(255, 255, 255, 0.9);
  box-shadow: 0 6px 18px rgba(45, 41, 38, 0.05);
}

/* FAQ groups render as a plain vertical stack, not a card wrapping the
   individual FAQ cards - no group-level border/background/padding - and are
   capped to a comfortable reading width instead of running full page width. */
.collapse-group:has(.collapse-container) {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  overflow: visible;
  width: 100%;
  max-width: 820px;
  margin-inline: auto;
}

/* `body.theme-dark .collapse-group` above is (0,2,1) and beats the (0,2,0)
   rule that strips the group chrome, so the card wrapper reappeared in dark
   theme. Restate it per-theme so the plain-stack intent actually holds. */
body.theme-dark .collapse-group:has(.collapse-container),
body.theme-light .collapse-group:has(.collapse-container) {
  border: none;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: 0;
  overflow: visible;
}

@media (max-width: 900px) {
  .collapse-group:has(.collapse-container) {
    width: 100%;
    max-width: 100%;
  }
}

/* Loading state */
.collapse-container.loading {
  opacity: 0.7;
  pointer-events: none;
}

.collapse-container.loading .collapse-chevron {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Disabled state */
.collapse-container.disabled {
  opacity: 0.55;
  pointer-events: none;
}

.collapse-container.disabled .collapse-header {
  cursor: not-allowed;
}

/* Animation states */
.collapse-container.animating .collapse-content {
  overflow: hidden !important;
  will-change: max-height;
}

/* Mobile optimizations */
@media (max-width: 768px) {
  .collapse-container {
    margin-bottom: 12px;
    border-radius: 10px;
  }

  .collapse-container::after {
    border-radius: 9px;
  }

  .collapse-header {
    min-height: 50px;
    padding: 12px 14px;
    margin: 0 !important;
    gap: 10px;
    font-size: 15px;
  }

  .collapse-header-content {
    gap: 8px;
  }

  .collapse-header-icon {
    width: 24px;
    height: 24px;
    border-radius: 7px;
    font-size: 12px;
  }

  .collapse-chevron {
    width: 22px;
    height: 22px;
    font-size: 11px;
  }

  .collapse-content-inner {
    padding: 12px 14px 14px 14px;
  }

  .collapse-content-inner::before {
    left: 14px;
    right: 14px;
  }

  .collapse-group {
    gap: 6px;
    padding: 6px;
    border-radius: 12px;
  }

  .collapse-group.collapse-group-narrow {
    width: 100%;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .collapse-container,
  .collapse-header,
  .collapse-header-icon,
  .collapse-chevron,
  .collapse-content,
  .collapse-content-inner,
  .collapse-content-inner::before,
  .collapse-container::before {
    transition: none;
  }

  .collapse-container:hover {
    transform: none;
  }

  .collapse-container.open .collapse-content {
    max-height: none;
  }

  .collapse-content-inner {
    transform: none;
  }
}

/* Print styles */
@media print {
  .collapse-container {
    border: 1px solid #cccccc;
    box-shadow: none;
    background: #ffffff;
    page-break-inside: avoid;
    transform: none;
  }

  .collapse-container::before,
  .collapse-container::after {
    display: none;
  }

  .collapse-container .collapse-content {
    max-height: none !important;
    overflow: visible !important;
  }

  .collapse-content-inner {
    opacity: 1 !important;
    transform: none !important;
  }

  .collapse-chevron {
    display: none;
  }
}

/* Accessibility - High contrast mode */
@media (prefers-contrast: high) {
  .collapse-container {
    border-width: 2px;
  }

  .collapse-header:focus-visible {
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
    box-shadow: none !important;
  }

  .collapse-header-icon,
  .collapse-chevron {
    border-width: 2px;
  }
}