/* ============================================================
   Lens Design Tokens — OM-22
   Source of truth: CLAUDE-DESIGN-BRIEF.md v1.0
   ============================================================ */

:root {
  /* --- Brand ----------------------------------------------- */
  --lens-color-brand: #4e077a;
  --lens-color-brand-hover: #6a1d9c;
  --lens-color-brand-tint: rgba(78, 7, 122, 0.12);
  --lens-color-accent: #7c3aed;

  /* --- Surfaces (Light) ----------------------------------- */
  --lens-color-bg-page: #ffffff;
  --lens-color-bg-surface: #f5f6f8;
  --lens-color-bg-card: #ffffff;
  --lens-color-bg-hover: #f0f1f4;
  --lens-color-bg-input: #f5f6f8;

  /* --- Text ------------------------------------------------ */
  --lens-color-text-primary: #1a1d29;
  --lens-color-text-secondary: #5c6078;
  --lens-color-text-muted: #8b8fa3;
  --lens-color-text-on-brand: #ffffff;

  /* --- Borders --------------------------------------------- */
  --lens-color-border: #e2e4ea;
  --lens-color-border-hover: rgba(124, 58, 237, 0.3);

  /* --- Semantic -------------------------------------------- */
  --lens-color-success: #16a34a;
  --lens-color-warning: #f59e0b;
  --lens-color-danger: #e15759;
  --lens-color-info: #3b82f6;

  /* --- Chart Series (OMX Data Vis Policy — canonical order) */
  --lens-color-series-1: #4e79a7;
  --lens-color-series-2: #f28e2b;
  --lens-color-series-3: #e15759;
  --lens-color-series-4: #76b7b2;
  --lens-color-series-5: #59a14f;
  --lens-color-series-6: #edc949;
  --lens-color-series-7: #af7aa1;
  --lens-color-series-8: #ff9da7;

  /* --- Typography ----------------------------------------- */
  --lens-font-ui: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --lens-font-mono: "JetBrains Mono", "Cascadia Code", "Fira Code", ui-monospace, monospace;
  --lens-font-print: "Source Sans 3", sans-serif;

  --lens-text-hero: 38px;
  --lens-text-section: 28px;
  --lens-text-subhead-lg: 22px;
  --lens-text-subhead: 19px;
  --lens-text-body-lg: 16px;
  --lens-text-body: 15px;
  --lens-text-caption: 14px;
  --lens-text-label: 11px;

  /* --- Spacing -------------------------------------------- */
  --lens-space-2xs: 3px;
  --lens-space-xs: 5px;
  --lens-space-sm: 10px;
  --lens-space-md: 20px;
  --lens-space-lg: 30px;
  --lens-space-xl: 40px;
  --lens-space-2xl: 60px;
  --lens-space-3xl: 80px;

  /* --- Radius --------------------------------------------- */
  --lens-radius-xs: 5px;
  --lens-radius-sm: 8px;
  --lens-radius-md: 10px;
  --lens-radius-lg: 15px;
  --lens-radius-xl: 20px;
  --lens-radius-pill: 9999px;

  /* --- Shadows -------------------------------------------- */
  --lens-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
  --lens-shadow-md: 0 2px 12px rgba(0, 0, 0, 0.08);
  --lens-shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
  --lens-shadow-focus: 0 0 0 3px rgba(78, 7, 122, 0.12);

  /* --- Layout --------------------------------------------- */
  --lens-layout-sidebar-width: 325px;
  --lens-layout-sidebar-collapsed: 64px;
  --lens-layout-topbar-height: 60px;
  --lens-layout-breadcrumb-height: 32px;
  --lens-layout-page-padding: 40px;
  --lens-layout-grid-gap: 25px;
  --lens-layout-max-width: 1920px;

  /* --- Z-index -------------------------------------------- */
  --lens-z-base: 1;
  --lens-z-sticky: 50;
  --lens-z-sidebar: 100;
  --lens-z-topbar: 200;
  --lens-z-modal: 1000;
  --lens-z-toast: 1100;

  /* --- Motion --------------------------------------------- */
  --lens-motion-hover: 120ms ease-out;
  --lens-motion-accordion: 180ms cubic-bezier(0.2, 0, 0, 1);
  --lens-motion-modal: 200ms ease-out;
  --lens-motion-route: 150ms ease-out;
  --lens-motion-tooltip: 80ms ease-out;
}

/* --- Reset + base ----------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--lens-font-ui);
  font-size: var(--lens-text-body);
  line-height: 1.6;
  color: var(--lens-color-text-primary);
  background: var(--lens-color-bg-page);
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 600; letter-spacing: -0.3px; }
h1 { font-size: var(--lens-text-hero); line-height: 1.10; }
h2 { font-size: var(--lens-text-section); line-height: 1.20; }
h3 { font-size: var(--lens-text-subhead-lg); line-height: 1.30; letter-spacing: 0; }
h4 { font-size: var(--lens-text-subhead); line-height: 1.40; letter-spacing: 0; }

p { margin: 0; }

a { color: var(--lens-color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

button { font-family: inherit; cursor: pointer; }

::selection { background: var(--lens-color-brand-tint); color: var(--lens-color-brand); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}