/* NEETlab Lab Authoring Theme
   Linked by every uploaded HTML lab.
   Change tokens here → all labs update. */

:root {
  /* Brand */
  --nl-bg: #0a0a0f;
  --nl-card: #0f0f17;
  --nl-border: #1a1a25;
  --nl-accent: #E8550A;
  --nl-cool: #4ECDC4;
  --nl-warning: #FFD93D;
  --nl-text: #f5efe6;
  --nl-text-secondary: #a8a297;
  --nl-text-muted: #5a5750;

  /* Atoms (standard across all molecule labs) */
  --nl-atom-c: #2c2c2c;
  --nl-atom-h: #f0f0f0;
  --nl-atom-o: #ff5252;
  --nl-atom-n: #4d8eff;
  --nl-atom-cl: #5dd959;
  --nl-bond: #666666;
  --nl-orbital-top: #E8550A;
  --nl-orbital-bottom: #4ECDC4;
  --nl-pi-cloud: rgba(232, 85, 10, 0.35);

  /* Type */
  --nl-font-body: 'Manrope', system-ui, -apple-system, sans-serif;
  --nl-font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--nl-bg);
  color: var(--nl-text);
  font-family: var(--nl-font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body {
  padding: 16px;
  min-height: 100vh;
  box-sizing: border-box;
}

* { box-sizing: border-box; }

button {
  font-family: var(--nl-font-body);
  background: var(--nl-accent);
  color: var(--nl-text);
  border: none;
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: opacity 0.15s;
}
button:hover { opacity: 0.9; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.nl-card {
  background: var(--nl-card);
  border: 1px solid var(--nl-border);
  border-radius: 12px;
  padding: 16px;
}

.nl-mono { font-family: var(--nl-font-mono); }
.nl-label {
  font-family: var(--nl-font-mono);
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-size: 10px;
  color: var(--nl-text-secondary);
}