body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-detail-card) {
  padding: 16px;
}

body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-detail-grid) {
  display: grid;
  grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
  min-height: min(680px, calc(100vh - 188px));
}

body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-detail-panel, .work-item-activity-panel) {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  height: min(720px, calc(100vh - 188px));
  overflow: hidden;
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius-md);
  background: var(--fs-bg-panel);
}

body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-panel-header) {
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--fs-border);
  background: linear-gradient(180deg, #fff, #f8fbfb);
}

body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-panel-header h2) {
  margin: 0;
  color: var(--fs-text-strong);
  font-size: 1rem;
  line-height: 1.2;
}

body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-panel-body, .work-item-activity-list) {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  padding: 14px;
}

body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-panel-actions, .work-item-comment-form) {
  display: grid;
  gap: 10px;
  padding: 12px 14px;
  border-top: 1px solid var(--fs-border);
  background: #f8fbfb;
}

body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-panel-actions) {
  justify-items: end;
}

body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-comment-form textarea) {
  width: 100%;
  min-height: 72px;
  resize: vertical;
}

body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-comment-form button) {
  justify-self: end;
}

@media (max-width: 980px) {
  body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-detail-grid) {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-detail-panel, .work-item-activity-panel) {
    height: auto;
    min-height: 520px;
  }
}

@media (max-width: 640px) {
  body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-detail-card) {
    padding: 12px;
  }

  body[data-flowstack-shell] :where(.platform-main, .main-stack) :where(.work-item-detail-panel, .work-item-activity-panel) {
    min-height: 0;
  }
}