diff --git a/src/deck/Deck.vue b/src/deck/Deck.vue
index bd36b45..cdb5270 100644
--- a/src/deck/Deck.vue
+++ b/src/deck/Deck.vue
@@ -1,9 +1,17 @@
 <script setup lang="ts">
-import { computed } from 'vue'
-import { ChevronLeft, ChevronRight } from '@lucide/vue'
+import { computed, ref, watch } from 'vue'
+import { ChevronLeft, ChevronRight, Sun, Moon } from '@lucide/vue'
 import { useDeck } from './useDeck'
 import { brand } from './data'
 
+// theme: dark by default, persisted; a single `.dark` class flips every token
+function readTheme() {
+  const s = typeof localStorage !== 'undefined' ? localStorage.getItem('deck-theme') : null
+  return s === 'light' ? false : true
+}
+const dark = ref(readTheme())
+watch(dark, (v) => localStorage.setItem('deck-theme', v ? 'dark' : 'light'))
+
 import TitleSlide from './slides/TitleSlide.vue'
 import VisionSlide from './slides/VisionSlide.vue'
 import NetworkSlide from './slides/NetworkSlide.vue'
@@ -44,15 +52,26 @@ const transitionName = computed(() => (direction.value === 1 ? 'slide-next' : 's
 </script>
 
 <template>
-  <div class="deck-root relative h-dvh w-full overflow-hidden">
+  <div class="deck-root relative h-dvh w-full overflow-hidden" :class="{ dark }">
     <!-- top bar -->
     <header
-      class="pointer-events-none absolute inset-x-0 top-0 z-20 flex items-center justify-between px-6 py-5 text-sand-dim"
+      class="pointer-events-none absolute inset-x-0 top-0 z-20 flex items-center justify-between px-6 py-5 text-fg-muted"
     >
-      <span class="font-display text-sm font-semibold tracking-wide text-sand">
+      <span class="font-display text-sm font-semibold tracking-wide text-fg">
         {{ brand.short }}
       </span>
-      <span class="text-xs uppercase tracking-[0.2em]">{{ current.label }}</span>
+      <div class="flex items-center gap-3">
+        <span class="text-xs uppercase tracking-[0.2em]">{{ current.label }}</span>
+        <button
+          class="pointer-events-auto grid size-8 place-items-center rounded-full border border-line bg-surface-2 text-fg transition hover:bg-surface-3"
+          :aria-label="dark ? 'Switch to light mode' : 'Switch to dark mode'"
+          :title="dark ? 'Light mode' : 'Dark mode'"
+          @click="dark = !dark"
+        >
+          <Sun v-if="dark" class="size-4" />
+          <Moon v-else class="size-4" />
+        </button>
+      </div>
     </header>
 
     <!-- slide stage -->
@@ -67,7 +86,7 @@ const transitionName = computed(() => (direction.value === 1 ? 'slide-next' : 's
     <!-- controls -->
     <div class="absolute inset-x-0 bottom-0 z-20 flex items-center justify-between gap-4 px-6 py-5">
       <button
-        class="pointer-events-auto grid size-10 place-items-center rounded-full border border-white/10 bg-white/5 text-sand transition hover:bg-white/10 disabled:opacity-30"
+        class="pointer-events-auto grid size-10 place-items-center rounded-full border border-line bg-surface-2 text-fg transition hover:bg-surface-3 disabled:opacity-30"
         :disabled="isFirst"
         aria-label="Previous slide"
         @click="prev"
@@ -81,7 +100,7 @@ const transitionName = computed(() => (direction.value === 1 ? 'slide-next' : 's
           v-for="(s, i) in slides"
           :key="s.id"
           class="h-1.5 rounded-full transition-all"
-          :class="i === index ? 'w-6 bg-amber-400' : 'w-1.5 bg-white/20 hover:bg-white/40'"
+          :class="i === index ? 'w-6 bg-amber-400' : 'w-1.5 bg-surface-3 hover:bg-surface-4'"
           :title="s.label"
           :aria-label="`Go to ${s.label}`"
           :aria-current="i === index"
@@ -90,11 +109,11 @@ const transitionName = computed(() => (direction.value === 1 ? 'slide-next' : 's
       </nav>
 
       <div class="flex items-center gap-3">
-        <span class="hidden text-xs tabular-nums text-sand-dim sm:inline">
+        <span class="hidden text-xs tabular-nums text-fg-muted sm:inline">
           {{ index + 1 }} / {{ slides.length }}
         </span>
         <button
-          class="pointer-events-auto grid size-10 place-items-center rounded-full border border-white/10 bg-white/5 text-sand transition hover:bg-white/10 disabled:opacity-30"
+          class="pointer-events-auto grid size-10 place-items-center rounded-full border border-line bg-surface-2 text-fg transition hover:bg-surface-3 disabled:opacity-30"
           :disabled="isLast"
           aria-label="Next slide"
           @click="next"
diff --git a/src/deck/components/EntityDetail.vue b/src/deck/components/EntityDetail.vue
index 746afc4..79ac8e1 100644
--- a/src/deck/components/EntityDetail.vue
+++ b/src/deck/components/EntityDetail.vue
@@ -11,17 +11,17 @@ const a = props.entity.accent
 <template>
   <SlideFrame :kicker="entity.kind">
     <div class="flex flex-wrap items-center gap-3">
-      <h2 class="font-display text-4xl font-semibold text-sand lg:text-5xl">{{ entity.name }}</h2>
+      <h2 class="font-display text-4xl font-semibold text-fg lg:text-5xl">{{ entity.name }}</h2>
       <span
         class="rounded-full border px-3 py-0.5 text-xs uppercase tracking-wider"
         :class="[accentRing[a], accentText[a]]"
       >
         {{ entity.role }}
       </span>
-      <span v-if="entity.example" class="text-sm text-sand-dim">e.g. {{ entity.example }}</span>
+      <span v-if="entity.example" class="text-sm text-fg-muted">e.g. {{ entity.example }}</span>
       <PlaceholderBadge label="name" />
     </div>
-    <p class="mt-4 max-w-2xl text-lg text-sand-dim">{{ entity.blurb }}</p>
+    <p class="mt-4 max-w-2xl text-lg text-fg-muted">{{ entity.blurb }}</p>
 
     <div class="mt-8 grid gap-6 lg:grid-cols-3">
       <!-- unique traits -->
@@ -30,7 +30,7 @@ const a = props.entity.accent
           What makes it unique
         </p>
         <ul class="mt-4 space-y-3">
-          <li v-for="t in entity.traits" :key="t" class="flex items-start gap-3 text-sm text-sand-dim">
+          <li v-for="t in entity.traits" :key="t" class="flex items-start gap-3 text-sm text-fg-muted">
             <span class="mt-0.5 grid size-5 shrink-0 place-items-center rounded-full" :class="accentRing[a]">
               <Icon name="Check" class="size-3" :class="accentText[a]" />
             </span>
@@ -46,7 +46,7 @@ const a = props.entity.accent
           <div
             v-for="s in entity.spaces"
             :key="s"
-            class="flex items-center gap-2 rounded-lg bg-white/[0.03] px-3 py-2 text-sm text-sand"
+            class="flex items-center gap-2 rounded-lg bg-surface px-3 py-2 text-sm text-fg"
           >
             <span class="size-1.5 rounded-full" :class="accentDot[a]" />
             {{ s }}
@@ -60,15 +60,15 @@ const a = props.entity.accent
           <p class="text-xs font-semibold uppercase tracking-[0.2em]" :class="accentText[a]">
             How it earns
           </p>
-          <ul class="mt-3 space-y-1.5 text-sm text-sand-dim">
+          <ul class="mt-3 space-y-1.5 text-sm text-fg-muted">
             <li v-for="r in entity.revenue" :key="r" class="flex items-center gap-2">
               <Icon name="Coins" class="size-3.5" :class="accentText[a]" />
               {{ r }}
             </li>
           </ul>
         </div>
-        <div class="flex items-center gap-2 rounded-2xl border border-white/10 bg-white/[0.03] px-4 py-3 text-xs text-sand-dim">
-          <Icon name="Layers" class="size-4 text-amber-300" />
+        <div class="flex items-center gap-2 rounded-2xl border border-line bg-surface px-4 py-3 text-xs text-fg-muted">
+          <Icon name="Layers" class="size-4 text-amber" />
           Runs on Archipelago — same membership, kiosk &amp; app as every node.
         </div>
       </div>
diff --git a/src/deck/components/Lightbox.vue b/src/deck/components/Lightbox.vue
index ce78a9e..4b180da 100644
--- a/src/deck/components/Lightbox.vue
+++ b/src/deck/components/Lightbox.vue
@@ -75,7 +75,7 @@ onUnmounted(() => window.removeEventListener('keydown', onKey, true))
 
         <!-- close -->
         <button
-          class="absolute right-5 top-5 grid size-11 place-items-center rounded-full border border-white/15 bg-white/10 text-sand backdrop-blur transition hover:bg-white/20"
+          class="absolute right-5 top-5 grid size-11 place-items-center rounded-full border border-white/15 bg-white/10 text-white backdrop-blur transition hover:bg-white/20"
           aria-label="Close"
           @click.stop="close"
         >
@@ -85,7 +85,7 @@ onUnmounted(() => window.removeEventListener('keydown', onKey, true))
         <!-- prev / next -->
         <button
           v-if="hasPrev"
-          class="absolute left-5 top-1/2 grid size-11 -translate-y-1/2 place-items-center rounded-full border border-white/15 bg-white/10 text-sand backdrop-blur transition hover:bg-white/20"
+          class="absolute left-5 top-1/2 grid size-11 -translate-y-1/2 place-items-center rounded-full border border-white/15 bg-white/10 text-white backdrop-blur transition hover:bg-white/20"
           aria-label="Previous image"
           @click.stop="prev"
         >
@@ -93,7 +93,7 @@ onUnmounted(() => window.removeEventListener('keydown', onKey, true))
         </button>
         <button
           v-if="hasNext"
-          class="absolute right-5 top-1/2 grid size-11 -translate-y-1/2 place-items-center rounded-full border border-white/15 bg-white/10 text-sand backdrop-blur transition hover:bg-white/20"
+          class="absolute right-5 top-1/2 grid size-11 -translate-y-1/2 place-items-center rounded-full border border-white/15 bg-white/10 text-white backdrop-blur transition hover:bg-white/20"
           aria-label="Next image"
           @click.stop="next"
         >
@@ -103,10 +103,10 @@ onUnmounted(() => window.removeEventListener('keydown', onKey, true))
         <!-- counter + hint -->
         <div
           v-if="images.length > 1"
-          class="absolute bottom-5 left-1/2 -translate-x-1/2 rounded-full border border-white/15 bg-white/10 px-4 py-1.5 text-sm text-sand backdrop-blur"
+          class="absolute bottom-5 left-1/2 -translate-x-1/2 rounded-full border border-white/15 bg-white/10 px-4 py-1.5 text-sm text-white backdrop-blur"
         >
           {{ (index ?? 0) + 1 }} / {{ images.length }}
-          <span class="ml-2 hidden text-sand-dim sm:inline">← → to browse · Esc to close</span>
+          <span class="ml-2 hidden text-white/60 sm:inline">← → to browse · Esc to close</span>
         </div>
       </div>
     </Transition>
diff --git a/src/deck/components/MyceliumNetwork.vue b/src/deck/components/MyceliumNetwork.vue
index b78771d..ef98795 100644
--- a/src/deck/components/MyceliumNetwork.vue
+++ b/src/deck/components/MyceliumNetwork.vue
@@ -79,9 +79,9 @@ const cha = entityById('chateau') // farm
 // surface flowers: the three experiences + two faint "future" ones.
 // (Archipelago is the mycelium itself — the network below, not a flower.)
 const flowers = [
-  { x: 230, kind: 'bloom', color: 'var(--color-indigo-400)', name: sol.name, tag: sol.role },
-  { x: 500, kind: 'festival', color: 'var(--color-rose-400)', name: fest.name, tag: fest.role },
-  { x: 770, kind: 'bloom', color: 'var(--color-clay-400)', name: cha.name, tag: cha.role },
+  { x: 230, kind: 'bloom', color: 'var(--color-indigo)', name: sol.name, tag: sol.role },
+  { x: 500, kind: 'festival', color: 'var(--color-rose)', name: fest.name, tag: fest.role },
+  { x: 770, kind: 'bloom', color: 'var(--color-clay)', name: cha.name, tag: cha.role },
   { x: 100, kind: 'ghost' },
   { x: 900, kind: 'ghost' },
 ] as const
@@ -104,12 +104,12 @@ const festivalCaps = [
     >
       <defs>
         <linearGradient id="skyGrad" x1="0" y1="0" x2="0" y2="1">
-          <stop offset="0%" stop-color="hsl(160 40% 10%)" stop-opacity="0" />
-          <stop offset="100%" stop-color="hsl(160 45% 12%)" stop-opacity="0.5" />
+          <stop offset="0%" stop-color="var(--myc-sky-top)" stop-opacity="0" />
+          <stop offset="100%" stop-color="var(--myc-sky-bot)" stop-opacity="0.5" />
         </linearGradient>
         <linearGradient id="soilGrad" x1="0" y1="0" x2="0" y2="1">
-          <stop offset="0%" stop-color="hsl(28 40% 10%)" stop-opacity="0.55" />
-          <stop offset="100%" stop-color="hsl(28 45% 6%)" stop-opacity="0.15" />
+          <stop offset="0%" stop-color="var(--myc-soil-top)" stop-opacity="0.55" />
+          <stop offset="100%" stop-color="var(--myc-soil-bot)" stop-opacity="0.15" />
         </linearGradient>
         <filter id="soft" x="-40%" y="-40%" width="180%" height="180%">
           <feGaussianBlur stdDeviation="4" />
@@ -124,8 +124,8 @@ const festivalCaps = [
         :y1="GROUND"
         x2="1000"
         :y2="GROUND"
-        stroke="var(--color-pine-500)"
-        stroke-opacity="0.35"
+        stroke="var(--myc-thread)"
+        stroke-opacity="0.5"
         stroke-dasharray="2 6"
       />
 
@@ -135,7 +135,7 @@ const festivalCaps = [
           v-for="(e, i) in edges"
           :key="`glow-${i}`"
           :d="thread(e, i)"
-          stroke="var(--color-pine-500)"
+          stroke="var(--myc-glow)"
           stroke-opacity="0.18"
           stroke-width="6"
           filter="url(#soft)"
@@ -144,8 +144,8 @@ const festivalCaps = [
           v-for="(e, i) in edges"
           :key="`line-${i}`"
           :d="thread(e, i)"
-          stroke="var(--color-pine-400)"
-          stroke-opacity="0.5"
+          stroke="var(--myc-thread)"
+          stroke-opacity="0.6"
           stroke-width="1.4"
         />
         <path
@@ -154,7 +154,7 @@ const festivalCaps = [
           class="myc-pulse"
           :style="{ animationDelay: `${(i % 6) * 0.5}s` }"
           :d="thread(e, i)"
-          stroke="var(--color-amber-300)"
+          stroke="var(--color-amber)"
           stroke-width="2.2"
           stroke-linecap="round"
         />
@@ -170,7 +170,7 @@ const festivalCaps = [
           :cx="n[0]"
           :cy="n[1]"
           r="4"
-          fill="var(--color-pine-300)"
+          fill="var(--myc-node)"
         />
       </g>
 
@@ -216,8 +216,8 @@ const festivalCaps = [
               />
             </template>
             <!-- solunar mark: sun + moon spark -->
-            <circle :cx="f.x" :cy="GROUND - 96" r="3.4" fill="var(--color-amber-300)" />
-            <circle :cx="f.x + 9" :cy="GROUND - 100" r="2" fill="var(--color-indigo-300)" />
+            <circle :cx="f.x" :cy="GROUND - 96" r="3.4" fill="var(--color-amber)" />
+            <circle :cx="f.x + 9" :cy="GROUND - 100" r="2" fill="var(--color-indigo)" />
           </g>
         </template>
 
@@ -226,8 +226,8 @@ const festivalCaps = [
           <path
             :d="`M ${f.x} ${GROUND} C ${f.x - 5} ${GROUND - 22}, ${f.x + 5} ${GROUND - 38}, ${f.x} ${GROUND - 60}`"
             fill="none"
-            stroke="var(--color-sand-dim)"
-            stroke-opacity="0.3"
+            stroke="var(--color-fg-muted)"
+            stroke-opacity="0.45"
             stroke-dasharray="3 5"
             stroke-width="4"
             stroke-linecap="round"
@@ -235,16 +235,16 @@ const festivalCaps = [
           <path
             :d="`M ${f.x - 26} ${GROUND - 60} Q ${f.x} ${GROUND - 90} ${f.x + 26} ${GROUND - 60} Q ${f.x} ${GROUND - 68} ${f.x - 26} ${GROUND - 60} Z`"
             fill="none"
-            stroke="var(--color-sand-dim)"
-            stroke-opacity="0.35"
+            stroke="var(--color-fg-muted)"
+            stroke-opacity="0.5"
             stroke-dasharray="3 5"
             stroke-width="1.6"
           />
           <g class="myc-plus" :style="{ animationDelay: `${i * 0.7}s` }">
-            <circle :cx="f.x" :cy="GROUND - 76" r="9" fill="hsl(160 24% 9%)" stroke="var(--color-amber-400)" stroke-opacity="0.6" />
+            <circle :cx="f.x" :cy="GROUND - 76" r="9" fill="var(--deck-bg)" stroke="var(--color-amber)" stroke-opacity="0.7" />
             <path
               :d="`M ${f.x - 4} ${GROUND - 76} h 8 M ${f.x} ${GROUND - 80} v 8`"
-              stroke="var(--color-amber-400)"
+              stroke="var(--color-amber)"
               stroke-width="1.6"
               stroke-linecap="round"
             />
@@ -280,16 +280,16 @@ const festivalCaps = [
 
     <div class="mt-6 grid gap-4 text-sm sm:grid-cols-2">
       <div class="flex items-start gap-3">
-        <span class="mt-0.5 text-pine-300"><Icon name="Layers" class="size-5" /></span>
-        <p class="text-sand-dim">
-          <span class="font-medium text-sand">Archipelago is the mycelium.</span>
+        <span class="mt-0.5 text-pine"><Icon name="Layers" class="size-5" /></span>
+        <p class="text-fg-muted">
+          <span class="font-medium text-fg">Archipelago is the mycelium.</span>
           One shared backbone runs unseen beneath every entity — members feel it, they don’t see it.
         </p>
       </div>
       <div class="flex items-start gap-3">
-        <span class="mt-0.5 text-amber-300"><Icon name="Sparkles" class="size-5" /></span>
-        <p class="text-sand-dim">
-          <span class="font-medium text-sand">Flowers are cheap to grow.</span>
+        <span class="mt-0.5 text-amber"><Icon name="Sparkles" class="size-5" /></span>
+        <p class="text-fg-muted">
+          <span class="font-medium text-fg">Flowers are cheap to grow.</span>
           A city hub, a travelling festival, a farm — and every new bloom is just another fruiting body.
         </p>
       </div>
@@ -306,12 +306,12 @@ const festivalCaps = [
 .myc-label-tag {
   font-size: 10px;
   letter-spacing: 0.22em;
-  fill: var(--color-sand-dim);
+  fill: var(--color-fg-muted);
 }
 .myc-zone {
   font-size: 11px;
   letter-spacing: 0.24em;
-  fill: var(--color-sand-dim);
+  fill: var(--color-fg-muted);
   opacity: 0.7;
 }
 
diff --git a/src/deck/components/PlaceholderBadge.vue b/src/deck/components/PlaceholderBadge.vue
index 49f1a42..487e49d 100644
--- a/src/deck/components/PlaceholderBadge.vue
+++ b/src/deck/components/PlaceholderBadge.vue
@@ -5,7 +5,7 @@ withDefaults(defineProps<{ label?: string }>(), { label: 'placeholder' })
 
 <template>
   <span
-    class="inline-flex items-center gap-1 rounded-full border border-amber-400/30 bg-amber-400/10 px-2 py-0.5 text-[10px] font-medium uppercase tracking-wider text-amber-300"
+    class="inline-flex items-center gap-1 rounded-full border border-amber-400/30 bg-amber-400/10 px-2 py-0.5 text-[10px] font-medium uppercase tracking-wider text-amber"
     title="This value is a placeholder — edit src/deck/data.ts"
   >
     {{ label }}
diff --git a/src/deck/components/SlideFrame.vue b/src/deck/components/SlideFrame.vue
index 5816b0d..82fe6a8 100644
--- a/src/deck/components/SlideFrame.vue
+++ b/src/deck/components/SlideFrame.vue
@@ -15,19 +15,19 @@ defineProps<{
   >
     <p
       v-if="kicker"
-      class="mb-3 text-xs font-semibold uppercase tracking-[0.25em] text-amber-400"
+      class="mb-3 text-xs font-semibold uppercase tracking-[0.25em] text-amber"
     >
       {{ kicker }}
     </p>
     <h2
       v-if="title"
-      class="font-display text-3xl font-semibold leading-tight text-sand sm:text-4xl lg:text-5xl"
+      class="font-display text-3xl font-semibold leading-tight text-fg sm:text-4xl lg:text-5xl"
     >
       {{ title }}
     </h2>
     <p
       v-if="subtitle"
-      class="mt-4 max-w-2xl text-base text-sand-dim sm:text-lg"
+      class="mt-4 max-w-2xl text-base text-fg-muted sm:text-lg"
       :class="center ? 'mx-auto' : ''"
     >
       {{ subtitle }}
diff --git a/src/deck/slides/AskSlide.vue b/src/deck/slides/AskSlide.vue
index 1a00ade..c172dce 100644
--- a/src/deck/slides/AskSlide.vue
+++ b/src/deck/slides/AskSlide.vue
@@ -10,11 +10,11 @@ const shares = investorAsk.scenarios.map((s) => ({ equity: s, annual: Math.round
 
 <template>
   <SlideFrame center>
-    <p class="text-xs font-semibold uppercase tracking-[0.3em] text-amber-400">The ask</p>
-    <h2 class="mt-4 font-display text-4xl font-semibold text-sand sm:text-5xl">
+    <p class="text-xs font-semibold uppercase tracking-[0.3em] text-amber">The ask</p>
+    <h2 class="mt-4 font-display text-4xl font-semibold text-fg sm:text-5xl">
       {{ fmtUsd(investorAsk.amount) }} for {{ pct(investorAsk.equity) }}% of SolLunar Society
     </h2>
-    <p class="mt-3 text-sand-dim">
+    <p class="mt-3 text-fg-muted">
       {{ fmtUsd(investorAsk.valuation) }} valuation · the first node, open in Austin
     </p>
 
@@ -23,36 +23,36 @@ const shares = investorAsk.scenarios.map((s) => ({ equity: s, annual: Math.round
       <div
         v-for="s in shares"
         :key="s.equity"
-        class="rounded-2xl border border-white/10 bg-white/[0.03] px-6 py-4"
+        class="rounded-2xl border border-line bg-surface px-6 py-4"
       >
-        <p class="text-xs uppercase tracking-wider text-sand-dim">{{ pct(s.equity) }}% share</p>
-        <p class="mt-1 font-display text-3xl font-bold text-sand">{{ fmtUsd(s.annual) }}</p>
-        <p class="text-xs text-sand-dim">/ yr profit</p>
+        <p class="text-xs uppercase tracking-wider text-fg-muted">{{ pct(s.equity) }}% share</p>
+        <p class="mt-1 font-display text-3xl font-bold text-fg">{{ fmtUsd(s.annual) }}</p>
+        <p class="text-xs text-fg-muted">/ yr profit</p>
       </div>
       <div class="rounded-2xl border border-pine-500/40 bg-pine-500/[0.07] px-6 py-4">
-        <p class="text-xs uppercase tracking-wider text-pine-300">Node profit</p>
-        <p class="mt-1 font-display text-3xl font-bold text-sand">{{ fmtUsd(pnl.yearlyProfit) }}</p>
-        <p class="text-xs text-sand-dim">/ yr (recomputed)</p>
+        <p class="text-xs uppercase tracking-wider text-pine">Node profit</p>
+        <p class="mt-1 font-display text-3xl font-bold text-fg">{{ fmtUsd(pnl.yearlyProfit) }}</p>
+        <p class="text-xs text-fg-muted">/ yr (recomputed)</p>
       </div>
     </div>
 
     <div class="mt-9 flex flex-col items-center gap-3 sm:flex-row">
       <a
         :href="`mailto:${brand.contactEmail}`"
-        class="inline-flex items-center gap-2 rounded-full bg-amber-400 px-6 py-3 font-semibold text-ink transition hover:bg-amber-300"
+        class="inline-flex items-center gap-2 rounded-full bg-amber-400 px-6 py-3 font-semibold text-on-accent transition hover:bg-amber-300"
       >
         <Icon name="Mail" class="size-5" />
         {{ brand.contactEmail }}
       </a>
       <button
-        class="inline-flex items-center gap-2 rounded-full border border-white/15 bg-white/5 px-6 py-3 font-semibold text-sand transition hover:bg-white/10"
+        class="inline-flex items-center gap-2 rounded-full border border-line-2 bg-surface-2 px-6 py-3 font-semibold text-fg transition hover:bg-surface-3"
       >
         <Icon name="CalendarClock" class="size-5" />
         Book an investor call
       </button>
     </div>
 
-    <p class="mt-9 max-w-xl text-sm text-sand-dim">
+    <p class="mt-9 max-w-xl text-sm text-fg-muted">
       Prove the model in Austin, then replicate it on Archipelago — the festival and the farm are next.
     </p>
   </SlideFrame>
diff --git a/src/deck/slides/EcosystemSlide.vue b/src/deck/slides/EcosystemSlide.vue
index be2b577..66a1e09 100644
--- a/src/deck/slides/EcosystemSlide.vue
+++ b/src/deck/slides/EcosystemSlide.vue
@@ -14,19 +14,19 @@ import { userEcosystem, surfaceEntities as entities } from '../data'
       <div
         v-for="item in userEcosystem"
         :key="item.title"
-        class="rounded-2xl border border-white/10 bg-white/[0.03] p-5"
+        class="rounded-2xl border border-line bg-surface p-5"
       >
-        <span class="grid size-10 place-items-center rounded-xl bg-amber-400/10 text-amber-300">
+        <span class="grid size-10 place-items-center rounded-xl bg-amber-400/10 text-amber">
           <Icon :name="item.icon" class="size-5" />
         </span>
-        <h3 class="mt-4 font-display text-lg font-semibold text-sand">{{ item.title }}</h3>
-        <p class="mt-1.5 text-sm leading-relaxed text-sand-dim">{{ item.body }}</p>
+        <h3 class="mt-4 font-display text-lg font-semibold text-fg">{{ item.title }}</h3>
+        <p class="mt-1.5 text-sm leading-relaxed text-fg-muted">{{ item.body }}</p>
       </div>
     </div>
 
-    <div class="mt-6 flex flex-wrap items-center justify-center gap-x-3 gap-y-1 text-xs text-sand-dim">
+    <div class="mt-6 flex flex-wrap items-center justify-center gap-x-3 gap-y-1 text-xs text-fg-muted">
       <span>Works identically at</span>
-      <span v-for="e in entities" :key="e.id" class="font-medium text-sand">{{ e.name }}</span>
+      <span v-for="e in entities" :key="e.id" class="font-medium text-fg">{{ e.name }}</span>
     </div>
   </SlideFrame>
 </template>
diff --git a/src/deck/slides/EntitiesSlide.vue b/src/deck/slides/EntitiesSlide.vue
index 639212b..5e03018 100644
--- a/src/deck/slides/EntitiesSlide.vue
+++ b/src/deck/slides/EntitiesSlide.vue
@@ -21,24 +21,24 @@ const archipelago = entityById('archipelago')
       >
         <span
           v-if="e.id === 'sollunar'"
-          class="absolute -top-3 left-6 rounded-full bg-indigo-400 px-3 py-0.5 text-[11px] font-semibold uppercase tracking-wider text-ink"
+          class="absolute -top-3 left-6 rounded-full bg-indigo-400 px-3 py-0.5 text-[11px] font-semibold uppercase tracking-wider text-on-accent"
         >
           Raising now
         </span>
         <div class="flex items-center gap-3">
-          <span class="grid size-11 place-items-center rounded-xl bg-white/5" :class="accentText[e.accent]">
+          <span class="grid size-11 place-items-center rounded-xl bg-surface-2" :class="accentText[e.accent]">
             <Icon :name="e.icon" class="size-6" />
           </span>
           <div>
-            <h3 class="font-display text-lg font-semibold leading-tight text-sand">{{ e.name }}</h3>
+            <h3 class="font-display text-lg font-semibold leading-tight text-fg">{{ e.name }}</h3>
             <p class="text-xs uppercase tracking-wider" :class="accentText[e.accent]">{{ e.role }}</p>
           </div>
         </div>
 
-        <p class="mt-4 flex-1 text-sm leading-relaxed text-sand-dim">{{ e.blurb }}</p>
+        <p class="mt-4 flex-1 text-sm leading-relaxed text-fg-muted">{{ e.blurb }}</p>
 
-        <div class="mt-5 flex items-center gap-2 border-t border-white/10 pt-4 text-xs text-sand-dim">
-          <Icon :name="e.id === 'sollunar' ? 'Check' : 'Layers'" class="size-4" :class="e.id === 'sollunar' ? 'text-indigo-300' : 'text-amber-300'" />
+        <div class="mt-5 flex items-center gap-2 border-t border-line pt-4 text-xs text-fg-muted">
+          <Icon :name="e.id === 'sollunar' ? 'Check' : 'Layers'" class="size-4" :class="e.id === 'sollunar' ? 'text-indigo' : 'text-amber'" />
           {{ e.id === 'sollunar' ? 'Live P&amp;L · this raise' : 'Vision · on the roadmap' }}
         </div>
       </div>
@@ -46,17 +46,17 @@ const archipelago = entityById('archipelago')
 
     <!-- the shared backbone beneath all three -->
     <div class="mt-5 flex items-center gap-4 rounded-2xl border p-5" :class="accentRing[archipelago.accent]">
-      <span class="grid size-11 shrink-0 place-items-center rounded-xl bg-white/5" :class="accentText[archipelago.accent]">
+      <span class="grid size-11 shrink-0 place-items-center rounded-xl bg-surface-2" :class="accentText[archipelago.accent]">
         <Icon :name="archipelago.icon" class="size-6" />
       </span>
       <div class="min-w-0 flex-1">
-        <h3 class="font-display text-lg font-semibold text-sand">
+        <h3 class="font-display text-lg font-semibold text-fg">
           {{ archipelago.name }}
           <span class="ml-1 text-xs font-normal uppercase tracking-wider" :class="accentText[archipelago.accent]">
             · {{ archipelago.role }}
           </span>
         </h3>
-        <p class="text-sm text-sand-dim">{{ archipelago.blurb }}</p>
+        <p class="text-sm text-fg-muted">{{ archipelago.blurb }}</p>
       </div>
     </div>
   </SlideFrame>
diff --git a/src/deck/slides/GallerySlide.vue b/src/deck/slides/GallerySlide.vue
index b059a62..4d47770 100644
--- a/src/deck/slides/GallerySlide.vue
+++ b/src/deck/slides/GallerySlide.vue
@@ -33,14 +33,14 @@ function selectTab(id: (typeof gallerySections)[number]['id']) {
         :class="
           activeId === s.id
             ? [accentRing[s.accent], accentText[s.accent]]
-            : 'border-white/10 bg-white/[0.03] text-sand-dim hover:border-white/25 hover:text-sand'
+            : 'border-line bg-surface text-fg-muted hover:border-line-3 hover:text-fg'
         "
         :aria-pressed="activeId === s.id"
         @click="selectTab(s.id)"
       >
         <span class="font-medium">{{ s.label }}</span>
         <span class="text-xs opacity-70">{{ s.entityName }}</span>
-        <span class="rounded-full bg-white/10 px-1.5 text-[11px] tabular-nums">{{ s.images.length }}</span>
+        <span class="rounded-full bg-surface-3 px-1.5 text-[11px] tabular-nums">{{ s.images.length }}</span>
       </button>
     </div>
 
@@ -50,7 +50,7 @@ function selectTab(id: (typeof gallerySections)[number]['id']) {
         <button
           v-for="(img, i) in active.images"
           :key="img.src"
-          class="group relative mb-3 block w-full break-inside-avoid overflow-hidden rounded-xl border border-white/10 bg-white/[0.03]"
+          class="group relative mb-3 block w-full break-inside-avoid overflow-hidden rounded-xl border border-line bg-surface"
           :aria-label="`Open ${img.name}`"
           @click="lightboxIndex = i"
         >
@@ -63,7 +63,7 @@ function selectTab(id: (typeof gallerySections)[number]['id']) {
           <span
             class="pointer-events-none absolute inset-0 flex items-end justify-end bg-gradient-to-t from-black/50 to-transparent p-2 opacity-0 transition group-hover:opacity-100"
           >
-            <span class="grid size-8 place-items-center rounded-full bg-white/15 text-sand backdrop-blur">
+            <span class="grid size-8 place-items-center rounded-full bg-surface-3 text-fg backdrop-blur">
               <Icon name="Expand" class="size-4" />
             </span>
           </span>
@@ -73,15 +73,15 @@ function selectTab(id: (typeof gallerySections)[number]['id']) {
       <!-- empty state -->
       <div
         v-else
-        class="flex flex-col items-center justify-center rounded-2xl border border-dashed border-white/15 px-6 py-16 text-center"
+        class="flex flex-col items-center justify-center rounded-2xl border border-dashed border-line-2 px-6 py-16 text-center"
       >
-        <span class="grid size-12 place-items-center rounded-xl bg-white/5" :class="accentText[active.accent]">
+        <span class="grid size-12 place-items-center rounded-xl bg-surface-2" :class="accentText[active.accent]">
           <Icon name="Images" class="size-6" />
         </span>
-        <p class="mt-4 text-sand">No {{ active.label }} photos yet.</p>
-        <p class="mt-1 max-w-md text-sm text-sand-dim">
+        <p class="mt-4 text-fg">No {{ active.label }} photos yet.</p>
+        <p class="mt-1 max-w-md text-sm text-fg-muted">
           Drop images into
-          <code class="rounded bg-white/10 px-1.5 py-0.5 text-xs text-sand">{{ active.folder }}</code>
+          <code class="rounded bg-surface-3 px-1.5 py-0.5 text-xs text-fg">{{ active.folder }}</code>
           and they’ll appear here automatically.
         </p>
       </div>
diff --git a/src/deck/slides/MembershipSlide.vue b/src/deck/slides/MembershipSlide.vue
index 259b847..f434ef6 100644
--- a/src/deck/slides/MembershipSlide.vue
+++ b/src/deck/slides/MembershipSlide.vue
@@ -18,25 +18,25 @@ const tiers = [...memberships].sort((a, b) => a.price - b.price)
         v-for="t in tiers"
         :key="t.name"
         class="relative flex flex-col rounded-2xl border p-6"
-        :class="t.featured ? 'border-indigo-500/50 bg-indigo-500/[0.07]' : 'border-white/10 bg-white/[0.03]'"
+        :class="t.featured ? 'border-indigo-500/50 bg-indigo-500/[0.07]' : 'border-line bg-surface'"
       >
         <span
           v-if="t.featured"
-          class="absolute -top-3 left-6 rounded-full bg-indigo-400 px-3 py-0.5 text-[11px] font-semibold uppercase tracking-wider text-ink"
+          class="absolute -top-3 left-6 rounded-full bg-indigo-400 px-3 py-0.5 text-[11px] font-semibold uppercase tracking-wider text-on-accent"
         >
           Flagship
         </span>
 
-        <h3 class="font-display text-xl font-semibold text-sand">{{ t.name }}</h3>
+        <h3 class="font-display text-xl font-semibold text-fg">{{ t.name }}</h3>
         <div class="mt-2 flex items-baseline gap-1">
-          <span class="font-display text-4xl font-bold text-sand">{{ fmtUsd(t.price) }}</span>
-          <span class="text-sm text-sand-dim">/mo</span>
+          <span class="font-display text-4xl font-bold text-fg">{{ fmtUsd(t.price) }}</span>
+          <span class="text-sm text-fg-muted">/mo</span>
         </div>
-        <p class="mt-1 text-xs text-sand-dim">{{ t.blurb }} · target {{ t.target }} members</p>
+        <p class="mt-1 text-xs text-fg-muted">{{ t.blurb }} · target {{ t.target }} members</p>
 
         <ul class="mt-5 flex-1 space-y-2">
-          <li v-for="p in t.perks" :key="p" class="flex items-start gap-2 text-sm text-sand-dim">
-            <Icon name="Check" class="mt-0.5 size-4 shrink-0 text-indigo-300" />
+          <li v-for="p in t.perks" :key="p" class="flex items-start gap-2 text-sm text-fg-muted">
+            <Icon name="Check" class="mt-0.5 size-4 shrink-0 text-indigo" />
             {{ p }}
           </li>
         </ul>
@@ -44,14 +44,14 @@ const tiers = [...memberships].sort((a, b) => a.price - b.price)
     </div>
 
     <!-- comparables -->
-    <div class="mt-6 flex flex-wrap items-center gap-x-4 gap-y-2 text-xs text-sand-dim">
+    <div class="mt-6 flex flex-wrap items-center gap-x-4 gap-y-2 text-xs text-fg-muted">
       <span class="uppercase tracking-wider">Austin comparables</span>
       <span
         v-for="c in membershipComparables"
         :key="c.name"
-        class="rounded-full border border-white/10 bg-white/5 px-3 py-1"
+        class="rounded-full border border-line bg-surface-2 px-3 py-1"
       >
-        {{ c.name }} <span class="text-sand">{{ fmtUsd(c.price) }}</span>
+        {{ c.name }} <span class="text-fg">{{ fmtUsd(c.price) }}</span>
       </span>
     </div>
   </SlideFrame>
diff --git a/src/deck/slides/PartnershipSlide.vue b/src/deck/slides/PartnershipSlide.vue
index 045ea4b..87cad2a 100644
--- a/src/deck/slides/PartnershipSlide.vue
+++ b/src/deck/slides/PartnershipSlide.vue
@@ -9,9 +9,9 @@ const barBg: Record<string, string> = {
   amber: 'bg-amber-400',
 }
 const text: Record<string, string> = {
-  indigo: 'text-indigo-300',
-  pine: 'text-pine-300',
-  amber: 'text-amber-300',
+  indigo: 'text-indigo',
+  pine: 'text-pine',
+  amber: 'text-amber',
 }
 const ring: Record<string, string> = {
   indigo: 'border-indigo-500/40 bg-indigo-500/[0.06]',
@@ -32,7 +32,7 @@ const pct = (e: number) => Math.round(e * 100)
       <div
         v-for="p in partnership.partners"
         :key="p.name"
-        class="flex h-full items-center justify-center text-[11px] font-semibold text-ink"
+        class="flex h-full items-center justify-center text-[11px] font-semibold text-on-accent"
         :class="barBg[p.accent]"
         :style="{ width: `${pct(p.equity)}%` }"
       >
@@ -48,27 +48,27 @@ const pct = (e: number) => Math.round(e * 100)
         :class="ring[p.accent]"
       >
         <div class="flex items-baseline justify-between gap-2">
-          <h3 class="font-display text-lg font-semibold text-sand">{{ p.name }}</h3>
+          <h3 class="font-display text-lg font-semibold text-fg">{{ p.name }}</h3>
           <span class="font-display text-2xl font-bold" :class="text[p.accent]">{{ pct(p.equity) }}%</span>
         </div>
         <p class="text-xs uppercase tracking-wider" :class="text[p.accent]">{{ p.role }}</p>
 
         <ul class="mt-4 flex-1 space-y-1.5">
-          <li v-for="r in p.responsibilities" :key="r" class="flex items-start gap-2 text-sm text-sand-dim">
+          <li v-for="r in p.responsibilities" :key="r" class="flex items-start gap-2 text-sm text-fg-muted">
             <Icon name="Check" class="mt-0.5 size-3.5 shrink-0" :class="text[p.accent]" />
             {{ r }}
           </li>
         </ul>
 
-        <p v-if="p.note" class="mt-3 border-t border-white/10 pt-3 text-[11px] leading-relaxed text-sand-dim">
+        <p v-if="p.note" class="mt-3 border-t border-line pt-3 text-[11px] leading-relaxed text-fg-muted">
           {{ p.note }}
         </p>
       </div>
     </div>
 
-    <div class="mt-5 flex flex-wrap items-center justify-center gap-x-6 gap-y-1 text-sm text-sand-dim">
+    <div class="mt-5 flex flex-wrap items-center justify-center gap-x-6 gap-y-1 text-sm text-fg-muted">
       <span>The ask:</span>
-      <span class="font-display text-lg font-semibold text-sand">
+      <span class="font-display text-lg font-semibold text-fg">
         {{ fmtUsd(partnership.raiseAmount) }} for {{ pct(partnership.equityOffered) }}%
       </span>
       <span>·</span>
diff --git a/src/deck/slides/PnlSlide.vue b/src/deck/slides/PnlSlide.vue
index b5f0622..51dea13 100644
--- a/src/deck/slides/PnlSlide.vue
+++ b/src/deck/slides/PnlSlide.vue
@@ -11,10 +11,10 @@ const barBg: Record<string, string> = {
   clay: 'bg-clay-400',
 }
 const text: Record<string, string> = {
-  pine: 'text-pine-300',
-  indigo: 'text-indigo-300',
-  rose: 'text-rose-300',
-  clay: 'text-clay-400',
+  pine: 'text-pine',
+  indigo: 'text-indigo',
+  rose: 'text-rose',
+  clay: 'text-clay',
 }
 const ring: Record<string, string> = {
   pine: 'border-pine-500/50 bg-pine-500/[0.06]',
@@ -42,28 +42,28 @@ const revPct = (id: string) =>
   >
     <!-- headline stats -->
     <div class="grid grid-cols-2 gap-3 sm:grid-cols-4">
-      <div class="rounded-2xl border border-white/10 bg-white/[0.03] p-4">
-        <p class="text-xs uppercase tracking-wider text-sand-dim">Revenue / mo</p>
-        <p class="mt-1 font-display text-2xl font-bold text-sand">{{ fmtUsd(pnl.monthlyRevenue) }}</p>
+      <div class="rounded-2xl border border-line bg-surface p-4">
+        <p class="text-xs uppercase tracking-wider text-fg-muted">Revenue / mo</p>
+        <p class="mt-1 font-display text-2xl font-bold text-fg">{{ fmtUsd(pnl.monthlyRevenue) }}</p>
       </div>
-      <div class="rounded-2xl border border-white/10 bg-white/[0.03] p-4">
-        <p class="text-xs uppercase tracking-wider text-sand-dim">Expenses / mo</p>
-        <p class="mt-1 font-display text-2xl font-bold text-sand">{{ fmtUsd(pnl.monthlyExpenses) }}</p>
+      <div class="rounded-2xl border border-line bg-surface p-4">
+        <p class="text-xs uppercase tracking-wider text-fg-muted">Expenses / mo</p>
+        <p class="mt-1 font-display text-2xl font-bold text-fg">{{ fmtUsd(pnl.monthlyExpenses) }}</p>
       </div>
       <div class="rounded-2xl border border-pine-500/40 bg-pine-500/[0.07] p-4">
-        <p class="text-xs uppercase tracking-wider text-pine-300">Profit / mo</p>
-        <p class="mt-1 font-display text-2xl font-bold text-sand">{{ fmtUsd(pnl.monthlyProfit) }}</p>
+        <p class="text-xs uppercase tracking-wider text-pine">Profit / mo</p>
+        <p class="mt-1 font-display text-2xl font-bold text-fg">{{ fmtUsd(pnl.monthlyProfit) }}</p>
       </div>
       <div class="rounded-2xl border border-amber-400/40 bg-amber-400/[0.07] p-4">
-        <p class="text-xs uppercase tracking-wider text-amber-300">Profit / yr</p>
-        <p class="mt-1 font-display text-2xl font-bold text-sand">{{ fmtUsd(pnl.yearlyProfit) }}</p>
+        <p class="text-xs uppercase tracking-wider text-amber">Profit / yr</p>
+        <p class="mt-1 font-display text-2xl font-bold text-fg">{{ fmtUsd(pnl.yearlyProfit) }}</p>
       </div>
     </div>
 
     <div class="mt-6 grid items-start gap-8 lg:grid-cols-[1fr_1fr]">
       <!-- revenue mix bar + live detail -->
       <div>
-        <p class="mb-2 text-xs uppercase tracking-wider text-sand-dim">Revenue mix</p>
+        <p class="mb-2 text-xs uppercase tracking-wider text-fg-muted">Revenue mix</p>
         <div class="flex h-4 w-full overflow-hidden rounded-full">
           <button
             v-for="g in revenueGroups"
@@ -85,7 +85,7 @@ const revPct = (id: string) =>
           >
             <div class="flex items-center gap-2">
               <Icon :name="selectedGroup.icon" class="size-5" :class="text[selectedGroup.accent]" />
-              <h3 class="font-display text-base font-semibold text-sand">{{ selectedGroup.title }}</h3>
+              <h3 class="font-display text-base font-semibold text-fg">{{ selectedGroup.title }}</h3>
               <span class="ml-auto font-display text-lg font-semibold" :class="text[selectedGroup.accent]">
                 {{ fmtUsd(groupTotal(selectedGroup)) }}
               </span>
@@ -96,20 +96,20 @@ const revPct = (id: string) =>
                 :key="item.label"
                 class="flex items-baseline justify-between gap-3 text-sm"
               >
-                <span class="text-sand-dim">
+                <span class="text-fg-muted">
                   {{ item.label }}
-                  <span v-if="item.note" class="text-[11px] text-sand-dim/60">· {{ item.note }}</span>
+                  <span v-if="item.note" class="text-[11px] text-fg-muted/60">· {{ item.note }}</span>
                 </span>
-                <span class="shrink-0 tabular-nums text-sand">{{ fmtUsd(item.amount) }}</span>
+                <span class="shrink-0 tabular-nums text-fg">{{ fmtUsd(item.amount) }}</span>
               </li>
             </ul>
           </div>
           <div
             v-else
             key="hint"
-            class="mt-5 flex items-center gap-3 rounded-2xl border border-dashed border-white/15 p-5 text-sm text-sand-dim"
+            class="mt-5 flex items-center gap-3 rounded-2xl border border-dashed border-line-2 p-5 text-sm text-fg-muted"
           >
-            <Icon name="ArrowRight" class="size-4 shrink-0 text-amber-300" />
+            <Icon name="ArrowRight" class="size-4 shrink-0 text-amber" />
             Tap a category to see its line items.
           </div>
         </Transition>
@@ -124,26 +124,26 @@ const revPct = (id: string) =>
           :class="
             selected === g.id
               ? ring[g.accent]
-              : 'border-white/10 bg-white/[0.03] hover:border-white/25 hover:bg-white/[0.06]'
+              : 'border-line bg-surface hover:border-line-3 hover:bg-surface-2'
           "
           @click="toggle(g.id)"
         >
-          <span class="grid size-10 shrink-0 place-items-center rounded-xl bg-white/5" :class="text[g.accent]">
+          <span class="grid size-10 shrink-0 place-items-center rounded-xl bg-surface-2" :class="text[g.accent]">
             <Icon :name="g.icon" class="size-5" />
           </span>
           <div class="min-w-0 flex-1">
-            <h3 class="font-display text-base font-semibold text-sand">{{ g.title }}</h3>
-            <p class="text-xs uppercase tracking-wider text-sand-dim">{{ g.kind }}</p>
+            <h3 class="font-display text-base font-semibold text-fg">{{ g.title }}</h3>
+            <p class="text-xs uppercase tracking-wider text-fg-muted">{{ g.kind }}</p>
           </div>
           <span class="shrink-0 font-display text-lg font-semibold" :class="text[g.accent]">
             {{ fmtUsd(groupTotal(g)) }}
           </span>
-          <Icon name="ChevronRight" class="size-4 shrink-0 text-sand-dim transition-transform" :class="selected === g.id ? 'rotate-90' : ''" />
+          <Icon name="ChevronRight" class="size-4 shrink-0 text-fg-muted transition-transform" :class="selected === g.id ? 'rotate-90' : ''" />
         </button>
       </div>
     </div>
 
-    <p class="mt-4 text-[11px] text-sand-dim/70">
+    <p class="mt-4 text-[11px] text-fg-muted/70">
       Figures recomputed from the plan's line items. The source summary stated
       {{ fmtUsd(pnlDocSummary.revenue) }} rev / {{ fmtUsd(pnlDocSummary.expenses) }} exp —
       being reconciled. Lunarpunk Locals count is TBD.
diff --git a/src/deck/slides/RoadmapSlide.vue b/src/deck/slides/RoadmapSlide.vue
index caf691a..9871393 100644
--- a/src/deck/slides/RoadmapSlide.vue
+++ b/src/deck/slides/RoadmapSlide.vue
@@ -16,22 +16,22 @@ import { roadmap } from '../data'
       <li v-for="(p, i) in roadmap" :key="p.phase" class="relative">
         <div class="flex items-center gap-3 md:block">
           <span
-            class="z-10 grid size-10 shrink-0 place-items-center rounded-full border border-white/15 bg-ink font-display text-sm font-bold text-amber-300"
+            class="z-10 grid size-10 shrink-0 place-items-center rounded-full border border-line-2 bg-background font-display text-sm font-bold text-amber"
           >
             {{ i + 1 }}
           </span>
-          <span class="mt-3 block text-[11px] font-semibold uppercase tracking-wider text-pine-300">
+          <span class="mt-3 block text-[11px] font-semibold uppercase tracking-wider text-pine">
             {{ p.phase }} · {{ p.when }}
           </span>
         </div>
-        <h3 class="mt-2 font-display text-lg font-semibold text-sand">{{ p.title }}</h3>
-        <p class="mt-1 text-sm text-sand-dim">{{ p.body }}</p>
+        <h3 class="mt-2 font-display text-lg font-semibold text-fg">{{ p.title }}</h3>
+        <p class="mt-1 text-sm text-fg-muted">{{ p.body }}</p>
       </li>
     </ol>
 
-    <p class="mt-10 rounded-2xl border border-pine-500/20 bg-pine-500/5 p-5 text-center text-sand">
+    <p class="mt-10 rounded-2xl border border-pine-500/20 bg-pine-500/5 p-5 text-center text-fg">
       Once the mycelium runs, every new flower is
-      <span class="font-semibold text-pine-300">marginal cost, not a new company.</span>
+      <span class="font-semibold text-pine">marginal cost, not a new company.</span>
     </p>
   </SlideFrame>
 </template>
diff --git a/src/deck/slides/SpacesSlide.vue b/src/deck/slides/SpacesSlide.vue
index 048fd15..fd4c945 100644
--- a/src/deck/slides/SpacesSlide.vue
+++ b/src/deck/slides/SpacesSlide.vue
@@ -16,16 +16,16 @@ const icons = ['Building2', 'BedDouble', 'Cpu']
       <div
         v-for="(b, i) in buildings"
         :key="b.name"
-        class="flex flex-col rounded-2xl border border-white/10 bg-white/[0.03] p-5"
+        class="flex flex-col rounded-2xl border border-line bg-surface p-5"
       >
         <div class="flex items-center gap-3">
-          <span class="grid size-10 place-items-center rounded-xl bg-indigo-500/10 text-indigo-300">
+          <span class="grid size-10 place-items-center rounded-xl bg-indigo-500/10 text-indigo">
             <Icon :name="icons[i] ?? 'Building2'" class="size-5" />
           </span>
-          <h3 class="font-display text-base font-semibold leading-tight text-sand">{{ b.name }}</h3>
+          <h3 class="font-display text-base font-semibold leading-tight text-fg">{{ b.name }}</h3>
         </div>
         <ul class="mt-4 space-y-1.5">
-          <li v-for="r in b.rooms" :key="r" class="flex items-center gap-2 text-sm text-sand-dim">
+          <li v-for="r in b.rooms" :key="r" class="flex items-center gap-2 text-sm text-fg-muted">
             <span class="size-1.5 rounded-full bg-indigo-400" />
             {{ r }}
           </li>
@@ -33,7 +33,7 @@ const icons = ['Building2', 'BedDouble', 'Cpu']
       </div>
     </div>
 
-    <p class="mt-6 text-sm text-sand-dim">
+    <p class="mt-6 text-sm text-fg-muted">
       The Yellow House data center makes SolLunar self-hosting — the Archipelago stack runs on-site,
       not in someone else's cloud.
     </p>
diff --git a/src/deck/slides/TechSlide.vue b/src/deck/slides/TechSlide.vue
index db7f7d4..88a5809 100644
--- a/src/deck/slides/TechSlide.vue
+++ b/src/deck/slides/TechSlide.vue
@@ -14,13 +14,13 @@ import { tech } from '../data'
       <div
         v-for="t in tech"
         :key="t.title"
-        class="rounded-2xl border border-white/10 bg-white/[0.03] p-5 transition hover:border-pine-500/40 hover:bg-pine-500/5"
+        class="rounded-2xl border border-line bg-surface p-5 transition hover:border-pine-500/40 hover:bg-pine-500/5"
       >
-        <span class="grid size-10 place-items-center rounded-xl bg-pine-500/10 text-pine-300">
+        <span class="grid size-10 place-items-center rounded-xl bg-pine-500/10 text-pine">
           <Icon :name="t.icon" class="size-5" />
         </span>
-        <h3 class="mt-4 font-display text-lg font-semibold text-sand">{{ t.title }}</h3>
-        <p class="mt-1.5 text-sm leading-relaxed text-sand-dim">{{ t.body }}</p>
+        <h3 class="mt-4 font-display text-lg font-semibold text-fg">{{ t.title }}</h3>
+        <p class="mt-1.5 text-sm leading-relaxed text-fg-muted">{{ t.body }}</p>
       </div>
     </div>
   </SlideFrame>
diff --git a/src/deck/slides/TenantsSlide.vue b/src/deck/slides/TenantsSlide.vue
index 8049d3a..3510c4a 100644
--- a/src/deck/slides/TenantsSlide.vue
+++ b/src/deck/slides/TenantsSlide.vue
@@ -14,18 +14,18 @@ import { tenants } from '../data'
       <div
         v-for="t in tenants"
         :key="t.name"
-        class="flex flex-col rounded-2xl border border-white/10 bg-white/[0.03] p-5 transition hover:border-indigo-500/40 hover:bg-indigo-500/5"
+        class="flex flex-col rounded-2xl border border-line bg-surface p-5 transition hover:border-indigo-500/40 hover:bg-indigo-500/5"
       >
-        <span class="grid size-10 place-items-center rounded-xl bg-indigo-500/10 text-indigo-300">
+        <span class="grid size-10 place-items-center rounded-xl bg-indigo-500/10 text-indigo">
           <Icon :name="t.icon" class="size-5" />
         </span>
-        <h3 class="mt-4 font-display text-lg font-semibold text-sand">{{ t.name }}</h3>
-        <p class="mt-1.5 text-sm leading-relaxed text-sand-dim">{{ t.blurb }}</p>
+        <h3 class="mt-4 font-display text-lg font-semibold text-fg">{{ t.name }}</h3>
+        <p class="mt-1.5 text-sm leading-relaxed text-fg-muted">{{ t.blurb }}</p>
       </div>
     </div>
 
-    <p class="mt-6 text-sm text-sand-dim">
-      Tenants pay rent <span class="text-sand">and</span> drive events, retail and food traffic —
+    <p class="mt-6 text-sm text-fg-muted">
+      Tenants pay rent <span class="text-fg">and</span> drive events, retail and food traffic —
       the same footfall that fills memberships.
     </p>
   </SlideFrame>
diff --git a/src/deck/slides/TitleSlide.vue b/src/deck/slides/TitleSlide.vue
index b8fef18..8b44334 100644
--- a/src/deck/slides/TitleSlide.vue
+++ b/src/deck/slides/TitleSlide.vue
@@ -7,42 +7,42 @@ import { brand, surfaceEntities, accentText } from '../data'
 <template>
   <SlideFrame center>
     <div class="flex flex-col items-center">
-      <span class="mb-6 inline-flex items-center gap-2 rounded-full border border-pine-500/30 bg-pine-500/10 px-4 py-1.5 text-xs uppercase tracking-[0.3em] text-pine-300">
+      <span class="mb-6 inline-flex items-center gap-2 rounded-full border border-pine-500/30 bg-pine-500/10 px-4 py-1.5 text-xs uppercase tracking-[0.3em] text-pine">
         Investment prospectus
         <PlaceholderBadge label="draft" />
       </span>
 
-      <h1 class="font-display text-5xl font-bold tracking-tight text-sand sm:text-6xl lg:text-7xl">
+      <h1 class="font-display text-5xl font-bold tracking-tight text-fg sm:text-6xl lg:text-7xl">
         {{ brand.name }}
       </h1>
 
-      <p class="mt-6 max-w-2xl text-balance text-xl text-sand sm:text-2xl">
+      <p class="mt-6 max-w-2xl text-balance text-xl text-fg sm:text-2xl">
         {{ brand.tagline }}
       </p>
 
       <!-- the three collaborating entities -->
-      <div class="mt-10 flex flex-wrap items-center justify-center gap-x-3 gap-y-2 text-sm text-sand-dim">
+      <div class="mt-10 flex flex-wrap items-center justify-center gap-x-3 gap-y-2 text-sm text-fg-muted">
         <span class="uppercase tracking-[0.2em]">Three experiences, one backbone</span>
       </div>
       <div class="mt-3 flex flex-wrap items-center justify-center gap-3">
         <template v-for="(e, i) in surfaceEntities" :key="e.id">
           <span class="font-display text-lg font-semibold" :class="accentText[e.accent]">{{ e.name }}</span>
-          <span v-if="i < surfaceEntities.length - 1" class="text-sand-dim">·</span>
+          <span v-if="i < surfaceEntities.length - 1" class="text-fg-muted">·</span>
         </template>
       </div>
 
-      <p class="mt-8 max-w-xl text-balance text-sm text-sand-dim">
+      <p class="mt-8 max-w-xl text-balance text-sm text-fg-muted">
         {{ brand.subtagline }}
       </p>
 
-      <span class="mt-6 inline-flex items-center gap-2 rounded-full border border-indigo-500/40 bg-indigo-500/10 px-4 py-1.5 text-xs font-medium text-indigo-300">
+      <span class="mt-6 inline-flex items-center gap-2 rounded-full border border-indigo-500/40 bg-indigo-500/10 px-4 py-1.5 text-xs font-medium text-indigo">
         <span class="size-1.5 rounded-full bg-indigo-400" />
         Raising now · {{ brand.firstNode }}
       </span>
 
-      <p class="mt-10 text-xs text-sand-dim">
-        Use <kbd class="rounded border border-white/15 px-1.5 py-0.5">→</kbd> /
-        <kbd class="rounded border border-white/15 px-1.5 py-0.5">←</kbd> to navigate
+      <p class="mt-10 text-xs text-fg-muted">
+        Use <kbd class="rounded border border-line-2 px-1.5 py-0.5">→</kbd> /
+        <kbd class="rounded border border-line-2 px-1.5 py-0.5">←</kbd> to navigate
       </p>
     </div>
   </SlideFrame>
diff --git a/src/deck/slides/VisionSlide.vue b/src/deck/slides/VisionSlide.vue
index 97f4e42..cd512f2 100644
--- a/src/deck/slides/VisionSlide.vue
+++ b/src/deck/slides/VisionSlide.vue
@@ -11,9 +11,9 @@ import { problem } from '../data'
         <li
           v-for="(p, i) in problem.points"
           :key="i"
-          class="flex items-start gap-4 text-lg text-sand-dim"
+          class="flex items-start gap-4 text-lg text-fg-muted"
         >
-          <span class="mt-1 grid size-6 shrink-0 place-items-center rounded-full bg-white/5 text-xs font-semibold text-amber-300">
+          <span class="mt-1 grid size-6 shrink-0 place-items-center rounded-full bg-surface-2 text-xs font-semibold text-amber">
             {{ i + 1 }}
           </span>
           {{ p }}
@@ -21,11 +21,11 @@ import { problem } from '../data'
       </ul>
 
       <div class="flex flex-col justify-center rounded-2xl border border-pine-500/20 bg-pine-500/5 p-8">
-        <Icon name="HeartHandshake" class="size-8 text-pine-300" />
-        <p class="mt-4 text-xs font-semibold uppercase tracking-[0.2em] text-pine-300">
+        <Icon name="HeartHandshake" class="size-8 text-pine" />
+        <p class="mt-4 text-xs font-semibold uppercase tracking-[0.2em] text-pine">
           Our thesis
         </p>
-        <p class="mt-3 font-display text-2xl leading-snug text-sand">
+        <p class="mt-3 font-display text-2xl leading-snug text-fg">
           {{ problem.thesis }}
         </p>
       </div>
diff --git a/src/style.css b/src/style.css
index f10e40b..5607b96 100644
--- a/src/style.css
+++ b/src/style.css
@@ -24,6 +24,33 @@
   --input: hsl(0 0% 89.8%);
   --ring: hsl(0 0% 3.9%);
   --radius: 0.5rem;
+
+  /* ── deck tokens · LIGHT ──────────────────────────────────── */
+  --deck-bg: hsl(150 20% 97%);
+  --deck-fg: hsl(160 25% 12%); /* primary text */
+  --deck-fg-muted: hsl(155 10% 38%); /* muted text */
+  --deck-surface: rgb(20 30 25 / 0.035); /* panels / cards */
+  --deck-surface-2: rgb(20 30 25 / 0.06); /* chips / icon bg */
+  --deck-surface-3: rgb(20 30 25 / 0.1); /* buttons / active */
+  --deck-surface-4: rgb(20 30 25 / 0.16); /* strong hover */
+  --deck-line: rgb(20 30 25 / 0.12);
+  --deck-line-2: rgb(20 30 25 / 0.18);
+  --deck-line-3: rgb(20 30 25 / 0.32);
+  /* accent TEXT — darker shades so they read on a light ground */
+  --deck-pine: hsl(162 60% 30%);
+  --deck-indigo: hsl(258 58% 52%);
+  --deck-rose: hsl(346 72% 48%);
+  --deck-clay: hsl(14 70% 44%);
+  --deck-amber: hsl(30 90% 38%);
+
+  /* mycelium diagram · LIGHT — darker/saturated so it doesn't wash out */
+  --myc-glow: hsl(162 55% 42%);
+  --myc-thread: hsl(162 58% 32%);
+  --myc-node: hsl(162 62% 30%);
+  --myc-sky-top: hsl(160 35% 74%);
+  --myc-sky-bot: hsl(160 38% 66%);
+  --myc-soil-top: hsl(32 48% 56%);
+  --myc-soil-bot: hsl(32 42% 64%);
 }
 
 .dark {
@@ -46,6 +73,32 @@
   --border: hsl(0 0% 14.9%);
   --input: hsl(0 0% 14.9%);
   --ring: hsl(0 0% 83.1%);
+
+  /* ── deck tokens · DARK ───────────────────────────────────── */
+  --deck-bg: hsl(160 28% 6%);
+  --deck-fg: hsl(44 30% 90%);
+  --deck-fg-muted: hsl(150 8% 62%);
+  --deck-surface: rgb(255 255 255 / 0.03);
+  --deck-surface-2: rgb(255 255 255 / 0.05);
+  --deck-surface-3: rgb(255 255 255 / 0.1);
+  --deck-surface-4: rgb(255 255 255 / 0.2);
+  --deck-line: rgb(255 255 255 / 0.1);
+  --deck-line-2: rgb(255 255 255 / 0.15);
+  --deck-line-3: rgb(255 255 255 / 0.28);
+  --deck-pine: hsl(158 42% 62%);
+  --deck-indigo: hsl(255 85% 78%);
+  --deck-rose: hsl(342 95% 76%);
+  --deck-clay: hsl(14 72% 62%);
+  --deck-amber: hsl(38 96% 70%);
+
+  /* mycelium diagram · DARK — the original light-on-dark palette */
+  --myc-glow: hsl(160 60% 40%);
+  --myc-thread: hsl(159 45% 50%);
+  --myc-node: hsl(158 42% 62%);
+  --myc-sky-top: hsl(160 40% 10%);
+  --myc-sky-bot: hsl(160 45% 12%);
+  --myc-soil-top: hsl(28 40% 10%);
+  --myc-soil-bot: hsl(28 45% 6%);
 }
 
 @theme inline {
@@ -71,19 +124,30 @@
   --radius-lg: var(--radius);
   --radius-md: calc(var(--radius) - 2px);
   --radius-sm: calc(var(--radius) - 4px);
+
+  /* deck semantic tokens — these FLIP with the .dark class */
+  --color-fg: var(--deck-fg);
+  --color-fg-muted: var(--deck-fg-muted);
+  --color-surface: var(--deck-surface);
+  --color-surface-2: var(--deck-surface-2);
+  --color-surface-3: var(--deck-surface-3);
+  --color-surface-4: var(--deck-surface-4);
+  --color-line: var(--deck-line);
+  --color-line-2: var(--deck-line-2);
+  --color-line-3: var(--deck-line-3);
+  --color-pine: var(--deck-pine);
+  --color-indigo: var(--deck-indigo);
+  --color-rose: var(--deck-rose);
+  --color-clay: var(--deck-clay);
+  --color-amber: var(--deck-amber);
 }
 
 /* ─────────────────────────────────────────────────────────────
-   ARCHIPELAGO pitch-deck brand palette  (PLACEHOLDER — swap when real
-   brand assets land). Regenerative-tech: pine green + warm amber
-   on a deep near-black ground. Used by the self-contained dark
-   deck; the shadcn tokens above are left intact for other pages.
+   ARCHIPELAGO pitch-deck brand palette. Numbered accent scales are
+   static SOLID fills (bars, dots, tinted panels) that read on both
+   light and dark; the flipping `--color-{accent}` above is for TEXT.
    ───────────────────────────────────────────────────────────── */
 @theme {
-  --color-ink: hsl(160 28% 6%); /* deck ground */
-  --color-ink-2: hsl(160 24% 9%); /* raised panels */
-  --color-ink-3: hsl(158 20% 13%); /* cards / borders */
-
   --color-pine-300: hsl(158 42% 62%);
   --color-pine-400: hsl(159 45% 50%);
   --color-pine-500: hsl(160 60% 40%);
@@ -93,19 +157,18 @@
   --color-amber-400: hsl(36 95% 60%);
   --color-amber-500: hsl(32 92% 52%);
 
-  /* SolLunar Punk Society (city) accent — lunarpunk indigo */
   --color-indigo-300: hsl(255 85% 78%);
   --color-indigo-400: hsl(256 78% 68%);
   --color-indigo-500: hsl(258 70% 58%);
 
-  /* Pop-up Festivals accent — vibrant rave rose */
   --color-rose-300: hsl(342 95% 76%);
   --color-rose-400: hsl(344 85% 66%);
   --color-rose-500: hsl(346 78% 56%);
 
-  --color-clay-400: hsl(14 72% 62%); /* farm / warmth accent */
-  --color-sand: hsl(44 30% 90%); /* primary deck text */
-  --color-sand-dim: hsl(150 8% 62%); /* muted deck text */
+  --color-clay-400: hsl(14 72% 62%);
+
+  /* dark ink text that sits on bright accents — same in both modes */
+  --color-on-accent: hsl(160 28% 8%);
 
   --font-display: 'Georgia', 'Times New Roman', serif;
 }
@@ -118,12 +181,18 @@
     @apply bg-background text-foreground;
   }
 
-  /* Deck root: self-contained dark canvas independent of shadcn tokens */
+  /* Deck canvas — a brand-tinted gradient that flips with .dark */
   .deck-root {
+    background:
+      radial-gradient(120% 80% at 80% -10%, hsl(162 45% 82% / 0.7), transparent 60%),
+      radial-gradient(90% 70% at -10% 110%, hsl(32 85% 85% / 0.6), transparent 55%),
+      var(--deck-bg);
+    color: var(--color-fg);
+  }
+  .deck-root.dark {
     background:
       radial-gradient(120% 80% at 80% -10%, hsl(162 60% 14% / 0.55), transparent 60%),
       radial-gradient(90% 70% at -10% 110%, hsl(32 80% 18% / 0.35), transparent 55%),
-      var(--color-ink);
-    color: var(--color-sand);
+      var(--deck-bg);
   }
 }