/* ==========================================================================
   Disclosure - Progressive disclosure component
   For collapsible/expandable content sections
   ========================================================================== */

.disclosure-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.disclosure-panel + .disclosure-panel {
  margin-top: var(--space-3);
}

/* Disclosure Trigger (Button) */
.disclosure-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-4);
  background: var(--color-surface);
  border: none;
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-align: left;
  transition: background-color var(--transition-fast);
}

.disclosure-trigger:hover {
  background: var(--color-background);
}

.disclosure-trigger:focus {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--color-blue);
}

/* Disclosure Icon */
.disclosure-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.disclosure-icon::before {
  content: '';
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-text-secondary);
  border-bottom: 2px solid var(--color-text-secondary);
  transform: rotate(-45deg);
  transition: transform var(--transition-base);
}

[data-disclosure-open="true"] .disclosure-icon::before,
.disclosure-panel--open .disclosure-icon::before {
  transform: rotate(45deg);
}

/* Disclosure Content */
.disclosure-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base) ease-out,
              opacity var(--transition-base) ease-out;
  opacity: 0;
}

.disclosure-content[data-collapsed="false"],
.disclosure-panel--open .disclosure-content {
  opacity: 1;
}

.disclosure-content-inner {
  padding: var(--space-4);
  padding-top: 0;
  border-top: 1px solid var(--color-border-light);
}

/* Disclosure Panel Variants */
.disclosure-panel--borderless {
  border: none;
  border-radius: 0;
}

.disclosure-panel--borderless .disclosure-trigger {
  padding-left: 0;
  padding-right: 0;
}

.disclosure-panel--borderless .disclosure-content-inner {
  padding-left: 0;
  padding-right: 0;
  border-top: none;
}

/* Compact variant for tighter spacing */
.disclosure-panel--compact .disclosure-trigger {
  padding: var(--space-3);
  font-size: var(--font-size-sm);
}

.disclosure-panel--compact .disclosure-content-inner {
  padding: var(--space-3);
  padding-top: 0;
}

/* Card variant - looks like a page panel when expanded */
.disclosure-panel--card {
  background: var(--color-surface);
  border: none;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
}

.disclosure-panel--card .disclosure-trigger {
  padding: var(--space-5);
  font-size: var(--font-size-base);
}

.disclosure-panel--card .disclosure-content-inner {
  padding: var(--space-5);
  padding-top: 0;
}

/* Trigger Label with Icon */
.disclosure-trigger-content {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.disclosure-trigger-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.disclosure-trigger-icon-blue {
  background: var(--color-info-bg);
  color: var(--color-blue);
}

.disclosure-trigger-icon-green {
  background: var(--color-green-light);
  color: var(--color-green);
}

.disclosure-trigger-icon-orange {
  background: var(--color-orange-light);
  color: var(--color-orange);
}

.disclosure-trigger-icon-purple {
  background: var(--color-purple-light);
  color: var(--color-purple);
}

.disclosure-trigger-label {
  flex: 1;
}

.disclosure-trigger-title {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.disclosure-trigger-description {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

/* Badge on disclosure trigger */
.disclosure-trigger-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 var(--space-2);
  background: var(--color-blue);
  color: var(--color-text-inverse);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-full);
}

/* Animation for content appearance */
@keyframes disclosure-fade-in {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.disclosure-content[data-collapsed="false"] .disclosure-content-inner,
.disclosure-panel--open .disclosure-content-inner {
  animation: disclosure-fade-in var(--transition-base) ease-out;
}

/* Nested disclosures */
.disclosure-content .disclosure-panel {
  margin-top: var(--space-3);
  border-color: var(--color-border-light);
}

/* Group of disclosures (accordion-style) */
.disclosure-group .disclosure-panel {
  border-radius: 0;
  margin-top: 0;
  border-top: none;
}

.disclosure-group .disclosure-panel:first-child {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  border-top: 1px solid var(--color-border);
}

.disclosure-group .disclosure-panel:last-child {
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.disclosure-group .disclosure-panel:only-child {
  border-radius: var(--radius-lg);
}