/* R6.1：画面优先的演示舞台。只引用阳光玻璃令牌。 */
.sample-bar {
  display: none !important;
}
.demo-shell {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 8px;
  padding: 8px;
  height: 100dvh;
  overflow: hidden;
  font-size: var(--b-fs-13);
}
.demo-main {
  position: relative;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}
#demo-nav {
  overflow: auto;
  overscroll-behavior: contain;
  border-right: 1px solid var(--b-line);
  padding-right: 4px;
}
.demo-brand {
  padding: 8px 4px 12px;
}
.demo-brand strong {
  font-size: var(--b-fs-13);
}
.demo-brand p {
  font-size: var(--b-fs-12);
  color: var(--b-text-3);
  margin-top: 6px;
}
.nav-screen {
  display: block;
  width: 100%;
  text-align: left;
  padding: 5px 4px;
  margin: 0;
  height: 32px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  border-left: 2px solid transparent;
  color: var(--b-text-3);
  font-size: var(--b-fs-12);
  cursor: pointer;
}
.nav-screen:hover {
  color: var(--b-text-1);
}
.nav-screen[aria-current="step"] {
  border-left-color: var(--b-text-1);
  color: var(--b-text-1);
  font-weight: 600;
}
.demo-top {
  display: flex;
  align-items: center;
  min-height: 36px;
  gap: 16px;
}
#demo-head {
  display: contents;
}
#demo-head h1 {
  flex: 1;
}
.demo-top .controls {
  order: 3;
}
#demo-head h1 {
  font-size: var(--b-fs-17);
}
.controls {
  display: flex;
  gap: 8px;
}
.controls button {
  line-height: 1;
  min-height: 28px;
  padding: 4px 10px;
  font-size: var(--b-fs-22);
  color: var(--b-text-2);
  cursor: pointer;
}
.controls button:disabled {
  opacity: 0.35;
}
.controls .ready {
  color: var(--b-bg-canvas);
  background: var(--b-text-1);
  border-radius: 50%;
  width: 28px;
  padding: 0;
  animation: next-ready 420ms ease-out 1;
}
@keyframes next-ready {
  50% { transform: scale(1.12); }
}
@media (prefers-reduced-motion: reduce) {
  .controls .ready { animation: none; }
}

#global-controls {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  align-items: center;
  padding: 0;
  flex-wrap: nowrap;
  color: var(--b-text-2);
}
#global-controls label {
  display: flex;
  align-items: center;
  gap: 4px;
}
#global-controls select {
  font: inherit;
  background: transparent;
  border: 0;
  color: var(--b-text-1);
  max-width: 150px;
  appearance: none;
  field-sizing: content;
  padding: 0;
  width: auto;
}
#global-controls button,
#open-alone {
  font: inherit;
  color: var(--b-text-2);
}
.demo-viewport {
  flex: none;
  overflow: hidden;
  align-self: center;
  border-radius: var(--b-radius-inner);
  background: var(--b-bg-inset);
  outline: 1px solid var(--b-line);
}
#demo-frame-stage {
  width: 1440px;
  height: 900px;
  transform-origin: top left;
}
#demo-frame {
  width: 1440px;
  height: 900px;
  border: 0;
  display: block;
}
#demo-caption {
  font-size: var(--b-fs-15);
  color: var(--b-text-2);
  padding-top: 6px;
  line-height: 1.6;
  min-height: 30px;
  white-space: nowrap;
}
.replay-link {
  margin-left: 12px;
  color: var(--b-text-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}
#entry-note {
  height: 900px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: var(--b-fs-17);
}
#entry-note a {
  color: var(--b-text-2);
  text-decoration: underline;
}
#entry-note[hidden],
#demo-frame[hidden] {
  display: none;
}
.demo-action {
  color: var(--b-text-3);
}
#action-receipt {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}
@media (max-width: 900px) {
  .demo-shell {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 12px;
    padding: 12px;
  }
  #global-controls {
    gap: 8px;
  }
}
@media (max-width: 700px) {
  .demo-shell {
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 8px;
    padding: 8px;
  }
  .nav-screen {
    padding: 8px 4px;
  }
  .demo-brand {
    padding: 0 4px 12px;
  }
  #demo-caption {
    font-size: var(--b-fs-13);
  }
  #global-controls {
    justify-content: flex-start;
  }
}

@media (max-height: 820px) {
  .demo-shell { padding-top: 4px; padding-bottom: 4px; }
  #demo-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 2;
    background: var(--b-bg-card);
    border-top: 1px solid var(--b-line);
    padding: 6px 10px;
    white-space: normal;
    font-size: var(--b-fs-13);
  }
  .demo-top { min-height: 16px; height: 16px; margin-bottom: 0; }
  .demo-top h1 { font-size: var(--b-fs-13); }
  .controls button { min-height: 16px; height: 16px; font-size: var(--b-fs-15); }
  .controls .ready { width: 16px; }
  .nav-screen { height: 29px; padding-top: 3px; padding-bottom: 3px; }
  .demo-brand { padding-top: 4px; padding-bottom: 8px; }
}