:root {
  color-scheme: light;
  --page-bg: #ffffff;
  --focus: #1b5cff;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  overflow: hidden;
  background: var(--page-bg);
  font-family: Arial, Helvetica, sans-serif;
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: clamp(16px, 4vw, 48px);
  background: #ffffff;
}

.diagram-stage {
  position: relative;
  width: min(94vw, 1180px);
  aspect-ratio: 16 / 9;
  background: #ffffff;
  cursor: pointer;
  outline: none;
  user-select: none;
  touch-action: manipulation;
}

.diagram-stage:focus-visible {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 75%, transparent);
}

.diagram-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
  transform-origin: 50% 50%;
  transition:
    opacity 880ms var(--ease),
    transform 880ms var(--ease),
    clip-path 880ms var(--ease),
    filter 880ms var(--ease);
  will-change: opacity, transform, clip-path;
}

.diagram-layer {
  z-index: 0;
}

.label-layer {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
  transform-origin: 50% 50%;
  transition:
    opacity 880ms var(--ease),
    transform 880ms var(--ease),
    clip-path 880ms var(--ease),
    filter 880ms var(--ease);
  will-change: opacity, transform, clip-path;
}

.label-layer text {
  fill: #111111;
  font-family: Arial, Helvetica, sans-serif;
  letter-spacing: 0;
  paint-order: stroke;
  stroke: #ffffff;
  stroke-linejoin: round;
}

.label-title {
  font-size: 14px;
  font-weight: 700;
  stroke-width: 1.2px;
}

.label-body {
  font-size: 8.6px;
  font-weight: 500;
  stroke-width: 0.8px;
}

.diagram-layer--compact {
  opacity: 1;
  transform: scale(1);
  clip-path: circle(140% at 50% 50%);
}

.diagram-layer--expanded,
.label-layer--expanded {
  opacity: 0;
  transform: scale(0.94);
  clip-path: circle(6% at 50% 50%);
}

.label-layer--compact {
  opacity: 1;
  transform: scale(1);
  clip-path: circle(140% at 50% 50%);
}

.diagram-stage[data-state="expanded"] .diagram-layer--compact,
.diagram-stage[data-state="expanded"] .label-layer--compact {
  opacity: 0;
  transform: scale(0.9);
  clip-path: circle(18% at 50% 50%);
  filter: blur(0.4px);
}

.diagram-stage[data-state="expanded"] .diagram-layer--expanded,
.diagram-stage[data-state="expanded"] .label-layer--expanded {
  opacity: 1;
  transform: scale(1);
  clip-path: circle(140% at 50% 50%);
}

.hotspot-layer {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.icon-hotspot {
  position: absolute;
  display: block;
  overflow: hidden;
  border-radius: 6px;
  opacity: 0;
  pointer-events: auto;
  background-repeat: no-repeat;
  background-color: #ffffff;
  transform: scale(1);
  transform-origin: 50% 50%;
  transition:
    opacity 160ms ease,
    transform 220ms var(--ease),
    filter 220ms var(--ease);
  will-change: opacity, transform;
}

.icon-hotspot:hover,
.icon-hotspot.is-touch-preview {
  opacity: 1;
  transform: scale(1.1);
  filter: drop-shadow(var(--shadow));
}

@media (max-width: 700px) {
  .page {
    padding: 10px;
  }

  .diagram-stage {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .diagram-layer,
  .icon-hotspot {
    transition-duration: 1ms;
  }
}