.pa-platforms {
  width: 25%;
  flex: 0 0 25%;
  height: 100%;
  overflow: hidden;
  background: var(--pa-panel);
  color: var(--pa-text-primary);
  border-right: 1px solid var(--pa-border);
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
}

/* Empty spacer matching .pa-brand's height/border in the sidebar, so "Platforms & Formats"
   starts on the same row as "Project details" instead of at the very top of the column — see
   theme.css's --pa-header-bar-h. */
.pa-platforms__topbar {
  flex: 0 0 auto;
  height: var(--pa-header-bar-h);
  box-sizing: border-box;
  border-bottom: 1px solid var(--pa-border);
}

.pa-platforms__body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  box-sizing: border-box;
  padding: 18px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pa-platforms__header-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.pa-platforms__summary {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pa-text-tertiary);
}

.pa-scope-note {
  font-size: 11px;
  line-height: 1.5;
  color: var(--pa-text-tertiary);
}

.pa-platform-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pa-platform-item {
  display: flex;
  flex-direction: column;
}

.pa-platform-name {
  flex: 1 1 auto;
  min-width: 70px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
}

.pa-platform-count {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--pa-text-tertiary);
}

.pa-platform-chevron {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  transform: rotate(-90deg);
  transition:
    transform 260ms var(--ease-out),
    opacity 200ms var(--ease-out);
}

.pa-platform-chevron[data-expanded="true"] {
  transform: rotate(0deg);
}

/* Formats accordion */

.pa-accordion {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition:
    grid-template-rows 340ms var(--ease-out),
    opacity 240ms var(--ease-out);
}

.pa-accordion[data-expanded="true"] {
  grid-template-rows: 1fr;
  opacity: 1;
}

/* Makes the 0fr collapse clip cleanly — row heights vary with column width, so this must not be a
   hard-coded max-height. */
.pa-accordion__clip {
  overflow: hidden;
  min-height: 0;
}

.pa-accordion__content {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 8px 0 2px 16px;
  padding-left: 14px;
  border-left: 1px solid var(--pa-border);
}

.pa-accordion__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.pa-accordion__label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pa-text-tertiary);
}

.pa-accordion__action {
  background: transparent;
  border: none;
  padding: 2px 0;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pa-text-tertiary);
}

.pa-accordion__action:hover {
  color: var(--accent-dark);
}

/* Format row */

.pa-format-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.pa-format-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--pa-text-primary);
}

.pa-format-spec {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--pa-text-tertiary);
}