:root {
  /* Swiss Precision palette */
  --color-bg: #ffffff;
  --color-bg-subtle: #f8f9fa;
  --color-bg-code: #f1f3f5;
  --color-border: #e5e7eb;
  --color-border-strong: #d1d5db;
  --color-text: #111827;
  --color-text-muted: #6b7280;
  --color-text-faint: #9ca3af;
  --color-accent: #0d9488;
  --color-accent-hover: #0f766e;
  --color-accent-subtle: rgba(13, 148, 136, 0.08);
  --color-status-green: #22c55e;
  --color-status-amber: #f59e0b;

  /* Terminal (dark code blocks) */
  --color-terminal-bg: #0f172a;
  --color-terminal-border: #1e293b;
  --color-terminal-text: #e2e8f0;
  --color-terminal-comment: #64748b;
  --color-terminal-prompt: #2dd4bf;
  --color-terminal-command: #f1f5f9;
  --color-terminal-output: #94a3b8;

  /* Elevation */
  --shadow-panel: 0 1px 2px rgba(15, 23, 42, 0.05), 0 8px 24px rgba(15, 23, 42, 0.06);
  --shadow-panel-hover: 0 2px 4px rgba(15, 23, 42, 0.06), 0 12px 32px rgba(15, 23, 42, 0.08);

  /* Typography */
  --font-display: "Plus Jakarta Sans", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  /* Modular scale (1.25) */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.563rem;
  --text-3xl: 1.953rem;
  --text-4xl: 2.441rem;
  --text-5xl: 3.052rem;

  /* Layout */
  --grid-columns: 12;
  --grid-gap: 1.5rem;
  --max-width: 72rem;
  --section-padding: clamp(4rem, 8vw, 7rem);
  --content-inset: clamp(1.25rem, 5vw, 3rem);
  --header-height: 4rem;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
}