feat(website): responsive / mobile layouts

Make the marketing site mobile-friendly across every page and section.
Desktop appearance is unchanged; all breakpoint logic targets <=768px.

- Fluid section padding via clamp(); equal grids use auto-fit/minmax,
  asymmetric grids stack to one column via scoped-CSS media queries
- Nav: real hamburger menu on mobile (links, lang toggle, login, CTA)
- ProductMockup: scales the whole dashboard to fit (zoom) instead of
  reflowing its internals into a tall stack
- Lower oversized heading clamp() minimums so titles no longer overflow
  at ~390px (hero, page headers, final CTA, brand cover/chapter)
- HowItWorks: row-gap when steps stack so node markers clear the text
- Compare + partners tables: stacked rows now label each value with its
  column (Dezky vs hyperscaler / CSP) instead of an ambiguous header
- Footer columns, tiers, calculator and tables stack cleanly on mobile

apps/website/pages/privacy.vue

@@ -19,7 +19,7 @@ useHead({ title: () => `${copy.value.pages.privacy.title} · dezky` })
 <template>
   <LandingPageHeader :label="c.label" :title="c.title" :intro="c.intro" />
 
-  <LandingContainer pad="48px 64px 160px">
+  <LandingContainer pad="48px clamp(20px, 5vw, 64px) clamp(80px, 12vw, 160px)">
     <div :style="{ maxWidth: '760px' }">
       <!-- Draft / legal-review banner -->
       <div :style="{ padding: '18px 22px', borderRadius: '4px', border: `1px solid ${C.warn}55`, background: `${C.warn}14`, fontFamily: '\'Inter\', sans-serif', fontSize: '14px', lineHeight: 1.55, color: t.fg }">
@@ -41,7 +41,8 @@ useHead({ title: () => `${copy.value.pages.privacy.title} · dezky` })
       <div :style="{ border: `1px solid ${t.border}`, borderRadius: '4px', overflow: 'hidden', margin: '0 0 40px' }">
         <div
           v-for="(row, i) in c.recipients" :key="i"
-          :style="{ display: 'grid', gridTemplateColumns: '1.2fr 1.5fr 1fr', gap: '16px', padding: '16px 20px', borderTop: i === 0 ? 'none' : `1px solid ${t.border}`, background: t.surface, fontFamily: '\'Inter\', sans-serif', fontSize: '14px', alignItems: 'baseline' }"
+          class="recipients-row"
+          :style="{ gap: '16px', padding: '16px 20px', borderTop: i === 0 ? 'none' : `1px solid ${t.border}`, background: t.surface, fontFamily: '\'Inter\', sans-serif', fontSize: '14px', alignItems: 'baseline' }"
         >
           <span :style="{ color: t.fg, fontWeight: 600 }">{{ row[0] }}</span>
           <span :style="{ color: t.fgMuted }">{{ row[1] }}</span>
@@ -67,3 +68,16 @@ useHead({ title: () => `${copy.value.pages.privacy.title} · dezky` })
     </div>
   </LandingContainer>
 </template>
+
+<style scoped>
+.recipients-row {
+  display: grid;
+  grid-template-columns: 1.2fr 1.5fr 1fr;
+}
+
+@media (max-width: 768px) {
+  .recipients-row {
+    grid-template-columns: 1fr;
+  }
+}
+</style>