diff --git a/adapters/tailwind.css b/adapters/tailwind.css
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--- /dev/null
+++ b/adapters/tailwind.css
@@ -0,0 +1,57 @@
+/* ============================================================================
+   weirsoe-theme — Tailwind v4 adapter.
+   @import AFTER "tailwindcss" so Tailwind generates colour utilities
+   (bg-surface, text-muted, border-border, text-accent…) from the shared tokens
+   — the SSOT for Tailwind-based sites (e.g. asger.weirsøe.dk). Dark is the
+   @theme default; light/terminal are runtime [data-theme] overrides.
+
+     @import "tailwindcss";
+     @import ".../adapters/tailwind.css";   // tokens
+     @import ".../weirsoe-theme.css";        // base/glow, toggle, prose, .wt-*
+
+   Font is intentionally NOT set here (consumer-specific). Token VALUES mirror
+   weirsoe-theme.css — keep the two in sync.
+   ========================================================================== */
+
+@theme {
+  --color-bg: #0b0f17;
+  --color-surface: #121a27;
+  --color-surface-2: #182232;
+  --color-surface-3: #1d293b;
+  --color-border: #243044;
+  --color-text: #e6e9ef;
+  --color-muted: #97a3b6;
+  --color-accent: #38bdf8;
+  --color-accent-2: #818cf8;
+  --color-accent-ink: #06121c;
+  --color-good: #7dffa8;
+  --color-bad: #ff8ba0;
+}
+
+html[data-theme="light"] {
+  color-scheme: light;
+  --color-bg: #f6f8fb;
+  --color-surface: #ffffff;
+  --color-surface-2: #eef2f8;
+  --color-surface-3: #e6ecf5;
+  --color-border: #dde4ee;
+  --color-text: #0f1729;
+  --color-muted: #54617a;
+  --color-accent: #0284c7;
+  --color-accent-2: #4f46e5;
+  --color-accent-ink: #ffffff;
+}
+
+html[data-theme="terminal"] {
+  color-scheme: dark;
+  --color-bg: #050a06;
+  --color-surface: #0a140c;
+  --color-surface-2: #102012;
+  --color-surface-3: #16331c;
+  --color-border: #1d3a22;
+  --color-text: #4bff7e;
+  --color-muted: #2fae57;
+  --color-accent: #7dffa8;
+  --color-accent-2: #33cc77;
+  --color-accent-ink: #04130a;
+}