:root {
  color-scheme: light;
  --cp-bg: #f7f4ef;
  --cp-bg-elevated: #fcfbf8;
  --cp-surface: #ffffff;
  --cp-surface-soft: #f5f5f5;
  --cp-border: #dedede;
  --cp-border-strong: #919191;
  --cp-text: #242424;
  --cp-text-muted: #5c5c5c;
  --cp-text-soft: #6f6f6f;
  --cp-accent: #b11f4b;
  --cp-accent-hover: #9a1a41;
  --cp-accent-soft: rgba(177, 31, 75, 0.08);
  --cp-accent-fg: #ffffff;
  --cp-success: #16a34a;
  --cp-danger: #dc2626;
  --cp-warning: #f59e0b;
  --cp-link: #0078d4;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.12);
  --cp-overlay: rgba(255, 255, 255, 0.8);
  --cp-panel: rgba(255, 255, 255, 0.86);
  --cp-panel-strong: rgba(255, 255, 255, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.55);
  --cp-highlight: rgba(177, 31, 75, 0.12);
}
html[data-theme="dark"] {
  color-scheme: dark;
  --cp-bg: #3d3b3a;
  --cp-bg-elevated: #343231;
  --cp-surface: #292929;
  --cp-surface-soft: #2e2e2e;
  --cp-border: #474747;
  --cp-border-strong: #5f5f5f;
  --cp-text: #dedede;
  --cp-text-muted: #919191;
  --cp-text-soft: #b0b0b0;
  --cp-accent: #fd8ea1;
  --cp-accent-hover: #fb7b91;
  --cp-accent-soft: rgba(253, 142, 161, 0.14);
  --cp-accent-fg: #1a1a1a;
  --cp-success: #4ade80;
  --cp-danger: #f87171;
  --cp-warning: #fbbf24;
  --cp-link: #4da6ff;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.32);
  --cp-overlay: rgba(41, 41, 41, 0.88);
  --cp-panel: rgba(41, 41, 41, 0.72);
  --cp-panel-strong: rgba(41, 41, 41, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.04);
  --cp-highlight: rgba(253, 142, 161, 0.12);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--cp-bg);
  color: var(--cp-text);
  font-family: "Segoe UI", Aptos, Calibri, -apple-system, BlinkMacSystemFont, sans-serif;
}
a { color: var(--cp-link); }
button, .button {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--cp-border);
  border-radius: .625rem;
  background: var(--cp-surface);
  color: var(--cp-text);
  padding: 10px 16px;
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color 0.15s ease, background 0.15s ease;
}
button:hover, .button:hover { border-color: var(--cp-accent); }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid var(--cp-accent);
  outline-offset: 3px;
}
button[aria-pressed="true"], button[aria-selected="true"], .primary {
  background: var(--cp-accent);
  color: var(--cp-accent-fg);
  border-color: var(--cp-accent);
  font-weight: 600;
}
button:disabled { opacity: .5; cursor: not-allowed; }
.mono { font-family: Consolas, "Courier New", Courier, monospace; }
.shell { max-width: 1260px; margin: auto; padding: 28px; }
.topline {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  border-bottom: 1px solid var(--cp-border);
  padding-bottom: 20px;
  flex-wrap: wrap;
}
.topline-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}
.eyebrow {
  color: var(--cp-accent);
  font: 12px Consolas, "Courier New", Courier, monospace;
  letter-spacing: .18em;
  text-transform: uppercase;
}
h1 {
  font-size: clamp(32px, 5vw, 62px);
  line-height: 1.08;
  font-weight: 600;
  letter-spacing: -.03em;
  margin: 20px 0 18px;
}
h2 {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 600;
  letter-spacing: -.02em;
  margin: 10px 0 14px;
}
h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 8px 0 10px;
}
.lead {
  max-width: 880px;
  color: var(--cp-text-muted);
  font-size: 18px;
  line-height: 1.7;
  margin: 0 0 20px;
}
.lab-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  padding: 20px 0;
  margin: 24px 0 36px;
  border-top: 1px solid var(--cp-border);
  border-bottom: 1px solid var(--cp-border);
}
.fact-pill {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: 12px;
  padding: 14px 16px;
}
.fact-pill strong {
  display: block;
  font-size: 22px;
  color: var(--cp-accent);
  font-family: Consolas, "Courier New", Courier, monospace;
  margin-bottom: 4px;
}
.fact-pill span {
  font-size: 13px;
  color: var(--cp-text-muted);
}
.stage-card {
  border: 1px solid var(--cp-border);
  border-radius: 18px;
  background: var(--cp-surface);
  box-shadow: var(--cp-shadow);
  overflow: hidden;
  margin: 32px 0 48px;
}
.stage-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--cp-border);
  background: var(--cp-bg-elevated);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}
.stage-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.stage-viewport-wrap {
  position: relative;
  width: 100%;
  height: 500px;
  background: var(--cp-surface-soft);
  border-bottom: 1px solid var(--cp-border);
}
.stage-viewport-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
}
.stage-hud-overlay {
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  pointer-events: none;
  gap: 12px;
  flex-wrap: wrap;
}
.hud-badge {
  background: var(--cp-panel-strong);
  border: 1px solid var(--cp-border);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--cp-text);
  max-width: 440px;
}
.hud-badge strong {
  color: var(--cp-accent);
  font-family: Consolas, "Courier New", Courier, monospace;
}
.stage-controls-bar {
  padding: 18px 24px;
  background: var(--cp-surface);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
[hidden], .stage-controls-bar[hidden] {
  display: none !important;
}
.control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.control-label {
  font-size: 12px;
  font-family: Consolas, "Courier New", Courier, monospace;
  color: var(--cp-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  min-width: 120px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin: 28px 0 48px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin: 24px 0 48px;
}
.card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--cp-border);
  border-radius: 16px;
  overflow: hidden;
  background: var(--cp-surface);
  padding: 24px;
}
.card p {
  color: var(--cp-text-muted);
  line-height: 1.65;
  margin: 0 0 16px;
}
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0 20px;
}
.tag {
  font-size: 12px;
  font-family: Consolas, "Courier New", Courier, monospace;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--cp-accent-soft);
  color: var(--cp-accent);
  border: 1px solid var(--cp-border);
}
.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--cp-border);
}
.matrix-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--cp-border);
  border-radius: 16px;
  background: var(--cp-surface);
  margin: 24px 0 48px;
}
table.matrix-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}
table.matrix-table th,
table.matrix-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--cp-border);
  vertical-align: top;
  line-height: 1.6;
}
table.matrix-table th {
  background: var(--cp-bg-elevated);
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cp-accent);
}
table.matrix-table tr:last-child td {
  border-bottom: none;
}
.step-number {
  display: inline-block;
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 8px;
  background: var(--cp-accent-soft);
  color: var(--cp-accent);
  margin-bottom: 8px;
}
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
footer {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--cp-border);
  color: var(--cp-text-muted);
  font-size: 14px;
  line-height: 1.6;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
@media (max-width: 1024px) {
  .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .stage-viewport-wrap { height: 420px; }
}