.camera-wrapper {
  position: relative;
  background: #000000;
}

.main,
.main__stage {
  background: #000000;
}

#input_video {
  display: none;
}

.topbar__url-input--compact {
  flex: 0 1 260px;
  min-width: 200px;
  max-width: 320px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
  z-index: 9999;
}

.modal-backdrop.is-open {
  display: flex;
}

.modal {
  position: relative;
  width: min(1040px, calc(100vw - 36px));
  height: min(720px, calc(100vh - 36px));
  background: #ffffff;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 18px 70px rgba(0, 0, 0, 0.35);
  display: flex;
  flex-direction: column;
}

.modal-applying {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(2px);
}

.modal-applying[hidden] {
  display: none;
}

.modal-applying__spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(37, 99, 235, 0.2);
  border-top-color: #2563eb;
  border-radius: 50%;
  animation: modal-applying-spin 0.75s linear infinite;
}

.modal-applying__text {
  font-size: 1rem;
  font-weight: 700;
  color: #0f172a;
}

@keyframes modal-applying-spin {
  to {
    transform: rotate(360deg);
  }
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.12);
}

.modal__title {
  font-weight: 700;
  color: #0f172a;
}

.modal__close {
  border: none;
  background: rgba(15, 23, 42, 0.06);
  color: #0f172a;
  border-radius: 10px;
  padding: 8px 10px;
  cursor: pointer;
}

.modal__body {
  flex: 1;
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 0;
}

.modal__sidebar {
  border-right: 1px solid rgba(15, 23, 42, 0.10);
  padding: 12px;
  overflow: auto;
}

.modal__content {
  padding: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 0;
}

.modal__section-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: #334155;
  margin-bottom: 10px;
}

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

.modal__cat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #ffffff;
  border-radius: 10px;
  padding: 8px 10px;
  cursor: pointer;
  text-align: left;
}

.modal__cat.is-active {
  border-color: rgba(37, 99, 235, 0.45);
  background: rgba(37, 99, 235, 0.08);
}

.modal__search {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.modal__list {
  flex: 1;
  overflow: auto;
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 12px;
}

.modal__item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.modal__item:last-child {
  border-bottom: none;
}

.modal__item-title {
  font-weight: 700;
  color: #0f172a;
}

.modal__item-meta {
  font-size: 0.82rem;
  color: #64748b;
  margin-top: 2px;
}

.modal__pick {
  border: none;
  background: #2563eb;
  color: #ffffff;
  border-radius: 10px;
  padding: 8px 10px;
  cursor: pointer;
  font-weight: 700;
  white-space: nowrap;
}

.modal__pick:disabled,
.modal__cat:disabled,
.modal__close:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.modal__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

@media (max-width: 900px) {
  .modal__body {
    grid-template-columns: 1fr;
  }
  .modal__sidebar {
    border-right: none;
    border-bottom: 1px solid rgba(15, 23, 42, 0.10);
  }
}

#overlay_canvas {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  /* 需要接收 pointer 事件以支援骨架拖曳/縮放 */
  pointer-events: auto;
  z-index: 10;
  /* 與 input_video / output_canvas 一致：鏡像使用者畫面 */
  transform: scaleX(-1);
}

/* 確保 output_canvas 在 overlay 下方（原本用來畫骨架/遮罩的那層） */
#output_canvas {
  z-index: 5;
  /* 測試頁改用 overlay_canvas 畫提示與骨架，避免 MediaPipe 原生繪圖疊成多套 */
  display: none;
}

.demo-scale-bottom {
  z-index: 40;
}

/* 拖曳/縮放已取代底部縮放拉桿：先隱藏 UI（保留 JS 邏輯） */
#demoScaleBottom {
  display: none;
}

.demo-scale-bottom--overlay {
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 8px;
  padding: 6px 8px;
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(148, 163, 184, 0.20);
  backdrop-filter: blur(10px);
  pointer-events: none;
  display: grid;
  grid-template-columns: 1fr minmax(24px, 22%) 1fr;
  gap: 8px;
}

.demo-scale-bottom__left,
.demo-scale-bottom__right {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  pointer-events: none;
}

.demo-scale-bottom__spacer {
  pointer-events: none;
}

.demo-scale-bottom--overlay input[type="range"] {
  width: 100%;
  height: 7px;
  accent-color: rgba(34, 197, 94, 0.95);
  pointer-events: auto;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
}

/* 更細的 track */
.demo-scale-bottom--overlay input[type="range"]::-webkit-slider-runnable-track {
  height: 2px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.35);
}

.demo-scale-bottom--overlay input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 7px;
  height: 7px;
  margin-top: -2.5px;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.95);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
}

.demo-scale-bottom--overlay input[type="range"]::-moz-range-track {
  height: 2px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.35);
}

.demo-scale-bottom--overlay input[type="range"]::-moz-range-thumb {
  width: 7px;
  height: 7px;
  border: none;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.95);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
}

.demo-scale-bottom--overlay input[type="range"]::-moz-range-progress {
  height: 2px;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.55);
}

@media (max-width: 900px) {
  .demo-scale-bottom--overlay {
    grid-template-columns: 1fr minmax(16px, 10%) 1fr;
    padding: 8px 8px;
    gap: 8px;
    left: 6px;
    right: 6px;
    bottom: 6px;
  }
  .demo-scale-bottom__left,
  .demo-scale-bottom__right {
    gap: 8px;
  }
}