.design-panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Окремий блок-секція в панелі дизайну */
.design-section {
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

/* Заголовок секції (кнопка-акордеон) */
.design-section__header {
  width: 100%;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  background: transparent;
  border: none;
  color: inherit;
}

.design-section__header:hover {
  background: rgba(255, 255, 255, 0.05);
}

.design-section__header-title {
  display: flex;
  align-items: center;
  gap: 6px;
}

.design-section__chevron {
  transition: transform 0.15s ease;
}

.design-section.is-open .design-section__chevron {
  transform: rotate(90deg);
}

/* Тіло секції */
.design-section__body {
  display: none;
  padding: 8px 10px 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.design-section.is-open .design-section__body {
  display: block;
}

/* Прості контролы */
.design-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
}

.design-field__label {
  font-size: 11px;
  opacity: 0.8;
}

.design-field__row {
  display: flex;
  gap: 6px;
  align-items: center;
}

.design-pill-group {
  display: inline-flex;
  padding: 2px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.design-pill {
  border: none;
  background: transparent;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 999px;
  cursor: pointer;
  opacity: 0.8;
}

.design-pill.is-active {
  background: rgba(255, 255, 255, 0.14);
  opacity: 1;
}

.design-slider {
  width: 100%;
}

.design-number {
  width: 58px;
  padding: 3px 6px;
  font-size: 11px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(0, 0, 0, 0.2);
  color: inherit;
}

/* 4-поля для відступів */
.design-quad-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 4px;
}

/* Вимкнена рамка для блоків/секцій */
.st-border-off {
  border: none !important;
}

/* force accordion body fully hidden */
.design-section__body[hidden]{
  display:none !important;
}

/* 00296: labeled spacing controls fallback */
.design-quad-grid--labeled {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 10px;
}
.design-quad-cell {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: center;
  gap: 6px;
  min-width: 0;
  font-size: 11px;
  font-weight: 700;
}
.design-quad-cell .design-number { width: 100%; min-width: 0; }