feat: tight app-first type scale as the Hanzo default (14px base)

@hanzo/brand is the ONE dynamic brand-settings source every surface reads. Retune
the default --font-size-* scale (styles/variables.css + typography.ts, kept in
mirror) from the roomy marketing scale to the compact developer-app register
(linear.app/vercel): base 16→14px, nav 13px, labels 11px, display sizes tightened.
Monochrome palette + white-label registry unchanged. A brand/tenant still overrides
any --font-size-* on :root to retune density on demand. 19/19 tests pass.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hanzo/brand",
-  "version": "1.4.2",
+  "version": "1.4.3",
   "description": "Official brand assets and design system for Hanzo AI",
   "main": "dist/index.js",
   "module": "dist/index.mjs",

src/typography.ts

@@ -12,20 +12,23 @@ export const typography = {
   },
 
   // Font sizes
+  // TIGHT app-first scale (mirrors styles/variables.css --font-size-*): the compact
+  // developer-app register (linear.app / vercel.com). Base 14px, nav 13px, labels
+  // 11px. Line-heights kept snug for density. This is the Hanzo default everywhere.
   fontSize: {
-    xs: ['0.75rem', { lineHeight: '1rem' }],
-    sm: ['0.875rem', { lineHeight: '1.25rem' }],
-    base: ['1rem', { lineHeight: '1.5rem' }],
-    lg: ['1.125rem', { lineHeight: '1.75rem' }],
-    xl: ['1.25rem', { lineHeight: '1.75rem' }],
-    '2xl': ['1.5rem', { lineHeight: '2rem' }],
-    '3xl': ['1.875rem', { lineHeight: '2.25rem' }],
-    '4xl': ['2.25rem', { lineHeight: '2.5rem' }],
-    '5xl': ['3rem', { lineHeight: '1' }],
-    '6xl': ['3.75rem', { lineHeight: '1' }],
-    '7xl': ['4.5rem', { lineHeight: '1' }],
-    '8xl': ['6rem', { lineHeight: '1' }],
-    '9xl': ['8rem', { lineHeight: '1' }],
+    xs: ['0.6875rem', { lineHeight: '1rem' }], // 11px
+    sm: ['0.8125rem', { lineHeight: '1.15rem' }], // 13px
+    base: ['0.875rem', { lineHeight: '1.35rem' }], // 14px
+    lg: ['0.9375rem', { lineHeight: '1.4rem' }], // 15px
+    xl: ['1.0625rem', { lineHeight: '1.55rem' }], // 17px
+    '2xl': ['1.3125rem', { lineHeight: '1.7rem' }], // 21px
+    '3xl': ['1.625rem', { lineHeight: '1.95rem' }], // 26px
+    '4xl': ['2rem', { lineHeight: '2.25rem' }], // 32px
+    '5xl': ['2.5rem', { lineHeight: '1.05' }], // 40px
+    '6xl': ['3.25rem', { lineHeight: '1.03' }], // 52px
+    '7xl': ['4rem', { lineHeight: '1' }], // 64px
+    '8xl': ['5.25rem', { lineHeight: '1' }], // 84px
+    '9xl': ['7rem', { lineHeight: '1' }], // 112px
   },
 
   // Font weights

styles/variables.css

@@ -137,20 +137,24 @@
   --font-sans: 'Geist Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
   --font-mono: 'Geist Mono', Monaco, monospace;
 
-  /* ===== Font Size scale (mirrors typography.ts `fontSize`) ===== */
-  --font-size-xs: 0.75rem;    /* 12px */
-  --font-size-sm: 0.875rem;   /* 14px */
-  --font-size-base: 1rem;     /* 16px */
-  --font-size-lg: 1.125rem;   /* 18px */
-  --font-size-xl: 1.25rem;    /* 20px */
-  --font-size-2xl: 1.5rem;    /* 24px */
-  --font-size-3xl: 1.875rem;  /* 30px */
-  --font-size-4xl: 2.25rem;   /* 36px */
-  --font-size-5xl: 3rem;      /* 48px */
-  --font-size-6xl: 3.75rem;   /* 60px */
-  --font-size-7xl: 4.5rem;    /* 72px */
-  --font-size-8xl: 6rem;      /* 96px */
-  --font-size-9xl: 8rem;      /* 128px */
+  /* ===== Font Size scale (mirrors typography.ts `fontSize`) =====
+     TIGHT app-first default — the compact developer-app register (linear.app /
+     vercel.com), NOT a roomy marketing scale. Base is 14px, nav 13px, labels 11px.
+     Every surface that imports @hanzo/brand inherits this; a brand/tenant can
+     override any --font-size-* on :root to retune density on demand. */
+  --font-size-xs: 0.6875rem;  /* 11px — eyebrows / section labels */
+  --font-size-sm: 0.8125rem;  /* 13px — nav labels, dense body */
+  --font-size-base: 0.875rem; /* 14px — base app text (was 16px) */
+  --font-size-lg: 0.9375rem;  /* 15px */
+  --font-size-xl: 1.0625rem;  /* 17px */
+  --font-size-2xl: 1.3125rem; /* 21px */
+  --font-size-3xl: 1.625rem;  /* 26px */
+  --font-size-4xl: 2rem;      /* 32px */
+  --font-size-5xl: 2.5rem;    /* 40px */
+  --font-size-6xl: 3.25rem;   /* 52px */
+  --font-size-7xl: 4rem;      /* 64px */
+  --font-size-8xl: 5.25rem;   /* 84px */
+  --font-size-9xl: 7rem;      /* 112px */
 
   /* ===== Z-index ladder (mirrors tokens.ts `zIndex`) ===== */
   --z-0: 0;