.simulation-page > .page-section {
  padding-top: 28px;
}

.simulation-page .breadcrumbs {
  margin-bottom: 18px;
}

.simulation-title-row {
  margin-bottom: 20px;
}

.simulation-title-row h1 {
  max-width: 1000px;
  margin: 7px 0 12px;
  font-size: clamp(2rem, 3.5vw, 3.25rem);
  line-height: 1.06;
}

.simulation-viewer {
  position: relative;
  border-color: #2d3748;
  border-radius: 14px;
  background: #0f172a;
}

.simulation-frame {
  height: 600px;
  min-height: 0;
}

.viewer-overlay {
  position: absolute;
  z-index: 4;
  top: 10px;
  right: 10px;
  pointer-events: none;
}

.viewer-fullscreen-button {
  width: 40px;
  height: 40px;
  min-height: 40px;
  padding: 0;
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(15, 23, 42, 0.88);
  color: #fff;
  box-shadow: 0 5px 18px rgba(0, 0, 0, 0.28);
  pointer-events: auto;
  backdrop-filter: blur(8px);
}

.viewer-fullscreen-button:hover {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(30, 41, 59, 0.96);
}

.simulation-viewer:fullscreen {
  border-radius: 0;
  display: block;
}

.simulation-viewer:fullscreen .simulation-frame {
  width: 100vw;
  height: 100dvh;
}

.simulation-viewer:fullscreen .viewer-overlay {
  top: max(10px, env(safe-area-inset-top, 0px));
  right: max(10px, env(safe-area-inset-right, 0px));
}

.simulation-viewer-hint {
  margin: 8px 6px 0;
  color: var(--ink-muted);
  text-align: right;
  font-size: 0.8rem;
}

@media (width <= 760px) {
  .simulation-page > .page-section {
    padding-top: 22px;
  }

  .simulation-title-row h1 {
    font-size: clamp(1.9rem, 8vw, 2.65rem);
  }

  .simulation-frame {
    height: clamp(460px, 68svh, 640px);
  }

  .viewer-overlay {
    top: 8px;
    right: 8px;
  }

  .viewer-fullscreen-button {
    width: 42px;
    height: 42px;
    min-height: 42px;
  }

  .simulation-viewer-hint {
    text-align: left;
  }
}

@media (width <= 520px) {
  .simulation-frame {
    height: clamp(430px, 66svh, 560px);
  }

  .simulation-viewer-hint {
    font-size: 0.75rem;
  }
}

@media (orientation: landscape) and (height <= 540px) and (pointer: coarse) {
  .simulation-viewer:not(:fullscreen) .simulation-frame {
    height: clamp(240px, 60dvh, 360px);
  }
}