chore: improve css with variables

app/app.vue

@@ -6,12 +6,86 @@
 
 <style lang="css">
 :root {
+  /* Colors */
   --primary-color: #fff;
   --secondary-color: #000;
+
+  /* Spacing scale */
+  --space-1: 0.25rem;
+  --space-2: 0.5rem;
+  --space-3: 0.75rem;
+  --space-4: 1rem;
+  --space-5: 1.25rem;
+  --space-6: 1.5rem;
+  --space-8: 2rem;
+  --space-10: 2.5rem;
+  --space-12: 3rem;
+  --space-16: 4rem;
+
+  /* Typography scale - Mobile first (base) */
+  --text-xs: 0.65rem;
+  --text-sm: 0.75rem;
+  --text-base: 1rem;
+  --text-lg: 1.25rem;
+  --text-xl: 1.5rem;
+
+  /* Line heights */
+  --leading-tight: 1.2;
+  --leading-normal: 1.5;
+  --leading-relaxed: 1.625;
+
+  /* Font families */
+  --font-primary: 'Abbiocco Beta', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
+  --font-accent: 'Bazaar', sans-serif;
+
+  /* Breakpoints (for reference - use in media queries as raw values) */
+  /* --bp-md: 768px */
+  /* --bp-lg: 1024px */
+  /* --bp-xl: 1536px */
+  /* --bp-2xl: 1920px */
+}
+
+/* Tablet (768px+) */
+@media (min-width: 768px) {
+  :root {
+    --text-xs: 0.75rem;
+    --text-sm: 0.9rem;
+    --text-base: 1rem;
+    --text-lg: 1.4rem;
+    --text-xl: 1.5rem;
+  }
+}
+
+/* Desktop (1024px+) */
+@media (min-width: 1024px) {
+  :root {
+    --text-xs: 0.95rem;
+    --text-sm: 1.15rem;
+    --text-base: 1.15rem;
+    --text-lg: 1.75rem;
+    --text-xl: 1.8rem;
+  }
+}
+
+/* Large desktop (1536px+) */
+@media (min-width: 1536px) {
+  :root {
+    --text-xs: 1rem;
+    --text-sm: 1.35rem;
+    --text-lg: 2.4rem;
+  }
+}
+
+/* Extra large (1920px+) */
+@media (min-width: 1920px) {
+  :root {
+    --text-xs: 1.15rem;
+    --text-lg: 3.2rem;
+  }
 }
 
 html, body, p, a, button, address, h2 {
-  font-family: 'Abbiocco Beta', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
+  font-family: var(--font-primary);
 }
 
 a {