:root {
  --annotation-accent: #f06a3a;
  --annotation-panel: rgba(21, 29, 29, 0.94);
  --annotation-text: #f7f1e5;
}

html,
body,
.reveal,
.reveal .slides {
  background: #111817;
}

.reveal .slides section.ppt-image-slide {
  width: 1280px !important;
  height: 720px !important;
  padding: 0 !important;
  margin: 0 !important;
  inset: 0 !important;
  overflow: hidden !important;
}

.reveal .slides section.ppt-image-slide > h2 {
  display: none !important;
}

.reveal .slides section.ppt-image-slide .ppt-slide-image {
  display: block;
  width: 1280px !important;
  height: 720px !important;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  box-shadow: none;
  object-fit: contain;
}

.reveal .controls,
.reveal .progress,
.reveal .slide-number {
  z-index: 24;
}

#annotation-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 30;
  pointer-events: none;
  touch-action: none;
}

#annotation-canvas.is-active {
  pointer-events: auto;
  cursor: crosshair;
}

#annotation-toolbar {
  position: fixed;
  right: max(14px, env(safe-area-inset-right));
  bottom: max(14px, env(safe-area-inset-bottom));
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 14px;
  color: var(--annotation-text);
  background: var(--annotation-panel);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1;
  -webkit-user-select: none;
  user-select: none;
}

#annotation-toolbar button {
  min-width: 44px;
  min-height: 44px;
  padding: 0 11px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  color: var(--annotation-text);
  background: rgba(255, 255, 255, 0.08);
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

#annotation-toolbar button:hover,
#annotation-toolbar button:focus-visible {
  background: rgba(255, 255, 255, 0.18);
  outline: 2px solid transparent;
}

#annotation-toolbar button.is-active {
  border-color: var(--annotation-accent);
  color: #fff;
  background: rgba(240, 106, 58, 0.42);
}

#annotation-toolbar .annotation-divider {
  width: 1px;
  height: 30px;
  margin: 0 1px;
  background: rgba(255, 255, 255, 0.2);
}

#annotation-toolbar:not(.is-open) button:not(#annotation-toggle),
#annotation-toolbar:not(.is-open) .annotation-divider,
#annotation-toolbar:not(.is-open) #annotation-status {
  display: none;
}

#annotation-status {
  min-width: 110px;
  padding: 0 5px;
  color: rgba(247, 241, 229, 0.78);
  font-size: 12px;
  line-height: 1.2;
}

@media (max-width: 780px) {
  #annotation-toolbar.is-open {
    left: max(8px, env(safe-area-inset-left));
    right: max(8px, env(safe-area-inset-right));
    bottom: max(8px, env(safe-area-inset-bottom));
    justify-content: center;
    gap: 4px;
    padding: 6px;
  }

  #annotation-toolbar:not(.is-open) {
    left: auto;
    right: max(8px, env(safe-area-inset-right));
    bottom: max(8px, env(safe-area-inset-bottom));
  }

  #annotation-toolbar button {
    min-width: 40px;
    min-height: 40px;
    padding: 0 8px;
  }

  #annotation-status {
    display: none;
  }
}

@media print {
  #annotation-toolbar,
  #annotation-canvas {
    display: none !important;
  }
}