redesign: Concrete Brutalism — warm concrete palette, Inconsolata + Instrument Sans

Kill the AI slop. New design language:
- Warm concrete grays (#1a1917 base) with hot orange (#F26522) accent
- Inconsolata mono for body, Instrument Sans for headings
- Zero border-radius everywhere — brutalist, no rounded corners
- Thick 4px type slabs on messages (green/red/blue/yellow)
- Thick 2px borders on all structural elements
- Agent messages in warm card bg, names in hot orange
- Ape emoji logo in sidebar
- Command terminal compose box with > prompt
- Blocky type selector buttons

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/colony/src/App.tsx

@@ -93,31 +93,31 @@ export default function App() {
       </div>
 
       <div className="flex-1 flex flex-col min-w-0">
-        <div className="px-3 py-2 md:px-4 border-b border-border flex items-center gap-2">
+        <div className="px-3 py-2 md:px-4 border-b-2 border-border flex items-center gap-2">
           <Sheet open={sheetOpen} onOpenChange={setSheetOpen}>
-            <SheetTrigger className="md:hidden p-1 h-8 w-8 text-muted-foreground hover:text-foreground rounded-sm">
+            <SheetTrigger className="md:hidden p-1 h-8 w-8 text-muted-foreground hover:text-primary font-mono font-bold text-lg">
               =
             </SheetTrigger>
-            <SheetContent side="left" className="p-0 w-64 bg-background">
+            <SheetContent side="left" className="p-0 w-56 bg-sidebar border-r-2 border-border">
               {sidebar}
             </SheetContent>
           </Sheet>
 
           {activeChannel ? (
             <>
-              <span className="text-muted-foreground">#</span>
-              <span className="font-bold text-sm">{activeChannel.name}</span>
+              <span className="text-primary font-bold font-mono">#</span>
+              <span className="font-sans font-bold text-sm uppercase tracking-wide">{activeChannel.name}</span>
               {activeChannel.description && (
-                <span className="text-xs text-muted-foreground ml-2 hidden md:inline">
+                <span className="text-xs font-mono text-muted-foreground ml-2 hidden md:inline">
                   {activeChannel.description}
                 </span>
               )}
-              <span className="ml-auto text-xs text-muted-foreground tabular-nums">
+              <span className="ml-auto text-[10px] font-mono text-muted-foreground tabular-nums">
                 {messages.length} msg
               </span>
             </>
           ) : (
-            <span className="text-muted-foreground text-xs">select a channel</span>
+            <span className="text-muted-foreground text-xs font-mono">no channel selected</span>
           )}
         </div>
 

ui/colony/src/components/ChannelSidebar.tsx

@@ -31,55 +31,60 @@ export function ChannelSidebar({
   }
 
   return (
-    <div className="flex flex-col h-full w-64 md:w-52 border-r border-white/[0.06] bg-[oklch(0.1_0.005_260)] text-muted-foreground">
-      {/* Header */}
-      <div className="px-4 py-3 md:px-3 border-b border-white/[0.06]">
-        <div className="text-[16px] md:text-[15px] font-bold tracking-tight text-foreground">
-          COLONY
-        </div>
-        <div className="text-[11px] md:text-[10px] text-muted-foreground/60 mt-0.5">
-          apes.unslope.com
+    <div className="flex flex-col h-full w-56 md:w-48 border-r-2 border-border bg-sidebar text-sidebar-foreground">
+      {/* Header — ape logo */}
+      <div className="px-3 py-3 border-b-2 border-border">
+        <div className="flex items-center gap-2">
+          <span className="text-2xl" role="img" aria-label="ape">🐒</span>
+          <div>
+            <div className="font-sans text-sm font-bold tracking-wide uppercase text-foreground">
+              Colony
+            </div>
+            <div className="font-mono text-[10px] text-muted-foreground tracking-wider">
+              apes.unslope.com
+            </div>
+          </div>
         </div>
       </div>
 
       {/* Channel list */}
-      <div className="flex-1 overflow-y-auto py-2">
-        <div className="px-3 md:px-2 mb-1 text-[10px] font-bold text-muted-foreground/50 tracking-widest">
-          CHANNELS
+      <div className="flex-1 overflow-y-auto">
+        <div className="px-3 pt-3 pb-1 font-sans text-[10px] font-bold text-muted-foreground uppercase tracking-[0.2em]">
+          Channels
         </div>
         {channels.map((ch) => (
           <button
             type="button"
             key={ch.id}
             onClick={() => onSelect(ch.id)}
-            className={`w-full text-left px-4 md:px-3 py-2 md:py-1 text-[13px] md:text-[12px] transition-colors min-h-[44px] md:min-h-0 flex items-center ${
+            className={`w-full text-left px-3 py-2 md:py-1.5 text-xs font-mono border-l-4 transition-colors min-h-[44px] md:min-h-0 flex items-center ${
               ch.id === activeId
-                ? "bg-white/[0.06] text-foreground font-medium"
-                : "hover:bg-white/[0.03]"
+                ? "border-primary bg-sidebar-accent text-foreground font-bold"
+                : "border-transparent hover:border-muted-foreground/30 hover:bg-sidebar-accent/50"
             }`}
           >
-            <span className="text-muted-foreground/50 mr-1.5">#</span>
+            <span className="text-muted-foreground mr-1.5 font-bold">#</span>
             {ch.name}
           </button>
         ))}
       </div>
 
-      {/* Current user */}
-      <div className="px-4 md:px-3 py-2 border-t border-white/[0.06] text-[11px]">
-        <span className="text-muted-foreground/50">as </span>
-        <span className="font-bold text-foreground">{getCurrentUsername()}</span>
+      {/* User strip */}
+      <div className="px-3 py-2 border-t-2 border-border font-mono text-[11px]">
+        <span className="text-muted-foreground">usr:</span>
+        <span className="text-primary font-bold ml-1">{getCurrentUsername()}</span>
       </div>
 
       {/* New channel */}
-      <div className="p-2 border-t border-white/[0.06]">
+      <div className="px-2 py-2 border-t border-border">
         <input
           type="text"
-          placeholder="+ new channel"
+          placeholder="+ channel"
           value={newName}
           onChange={(e) => setNewName(e.target.value)}
           onKeyDown={(e) => e.key === "Enter" && handleCreate()}
           disabled={creating}
-          className="w-full bg-white/[0.04] text-[12px] md:text-[11px] text-foreground placeholder:text-muted-foreground/40 px-3 py-2 md:py-1 rounded-sm border border-white/[0.06] focus:outline-none focus:border-blue-500/30 min-h-[40px] md:min-h-0"
+          className="w-full bg-input text-xs font-mono text-foreground placeholder:text-muted-foreground px-2 py-1.5 border-2 border-border focus:outline-none focus:border-primary min-h-[36px] md:min-h-0"
         />
       </div>
     </div>

ui/colony/src/components/ComposeBox.tsx

@@ -1,8 +1,6 @@
 import { useState } from "react";
 import type { MessageType } from "@/types/MessageType";
 import { postMessage } from "@/api";
-import { Button } from "@/components/ui/button";
-import { Input } from "@/components/ui/input";
 import { cn } from "@/lib/utils";
 
 interface Props {
@@ -12,12 +10,12 @@ interface Props {
   onMessageSent: () => void;
 }
 
-const MSG_TYPES: { value: MessageType; label: string }[] = [
-  { value: "text", label: "T" },
-  { value: "code", label: "C" },
-  { value: "result", label: "R" },
-  { value: "error", label: "E" },
-  { value: "plan", label: "P" },
+const MSG_TYPES: { value: MessageType; label: string; color: string }[] = [
+  { value: "text", label: "TXT", color: "" },
+  { value: "code", label: "COD", color: "text-[var(--color-msg-code)]" },
+  { value: "result", label: "RES", color: "text-[var(--color-msg-result)]" },
+  { value: "error", label: "ERR", color: "text-[var(--color-msg-error)]" },
+  { value: "plan", label: "PLN", color: "text-[var(--color-msg-plan)]" },
 ];
 
 export function ComposeBox({
@@ -49,29 +47,34 @@ export function ComposeBox({
   }
 
   return (
-    <div className="border-t border-border bg-card px-3 py-2 md:px-4 md:py-3 pb-[env(safe-area-inset-bottom,8px)]">
+    <div className="border-t-2 border-border bg-card px-3 py-2.5 md:px-4 pb-[env(safe-area-inset-bottom,10px)]">
       {replyTo && (
-        <div className="flex items-center gap-2 mb-1.5 text-xs text-muted-foreground">
-          <span>^ #{replyTo.slice(0, 8)}</span>
-          <Button variant="ghost" size="sm" onClick={onClearReply} className="h-6 px-1 text-xs">
+        <div className="flex items-center gap-2 mb-2 text-[11px] font-mono text-muted-foreground">
+          <span className="text-primary font-bold">^</span>
+          <span>replying to #{replyTo.slice(0, 8)}</span>
+          <button
+            type="button"
+            onClick={onClearReply}
+            className="text-muted-foreground hover:text-primary font-bold min-w-[32px] min-h-[32px] md:min-w-0 md:min-h-0 flex items-center"
+          >
             [x]
-          </Button>
+          </button>
         </div>
       )}
 
-      <div className="flex items-center gap-1.5 md:gap-2">
-        {/* Type selector */}
-        <div className="flex gap-0.5 rounded-md border border-border p-0.5">
+      <div className="flex items-center gap-2">
+        {/* Type selector — blocky, no-radius buttons */}
+        <div className="flex border-2 border-border">
           {MSG_TYPES.map((t) => (
             <button
               type="button"
               key={t.value}
               onClick={() => setMsgType(t.value)}
               className={cn(
-                "h-7 w-7 md:h-6 md:w-6 rounded-sm text-xs font-bold transition-colors",
+                "h-8 w-8 md:h-7 md:w-7 text-[9px] font-mono font-bold uppercase transition-colors border-r border-border last:border-r-0",
                 msgType === t.value
                   ? "bg-primary text-primary-foreground"
-                  : "text-muted-foreground hover:text-foreground"
+                  : cn("text-muted-foreground hover:text-foreground hover:bg-muted/50", t.color),
               )}
             >
               {t.label}
@@ -79,7 +82,9 @@ export function ComposeBox({
           ))}
         </div>
 
-        <Input
+        {/* Input — thick border, no radius */}
+        <input
+          type="text"
           value={content}
           onChange={(e) => setContent(e.target.value)}
           onKeyDown={(e) => {
@@ -88,19 +93,20 @@ export function ComposeBox({
               handleSend();
             }
           }}
-          placeholder="message..."
+          placeholder="> message..."
           disabled={sending}
-          className="flex-1 h-9 md:h-8 text-sm"
+          className="flex-1 bg-input text-sm font-mono text-foreground placeholder:text-muted-foreground/50 px-3 py-1.5 h-9 md:h-8 border-2 border-border focus:outline-none focus:border-primary"
         />
 
-        <Button
+        {/* Send — hot orange */}
+        <button
+          type="button"
           onClick={handleSend}
           disabled={sending || !content.trim()}
-          size="sm"
-          className="h-9 md:h-8 px-3 text-xs font-bold"
+          className="h-9 md:h-8 px-4 font-sans text-xs font-bold uppercase tracking-wider bg-primary text-primary-foreground border-2 border-primary hover:bg-primary/80 disabled:opacity-20 transition-opacity"
         >
-          {sending ? "..." : "SEND"}
-        </Button>
+          {sending ? "..." : "Send"}
+        </button>
       </div>
     </div>
   );

ui/colony/src/components/MessageItem.tsx

@@ -1,5 +1,6 @@
 import { useState } from "react";
 import type { Message } from "@/types/Message";
+import { cn } from "@/lib/utils";
 
 interface Props {
   message: Message;
@@ -7,19 +8,12 @@ interface Props {
   onReply: (id: string) => void;
 }
 
-const TYPE_BORDER: Record<string, string> = {
-  text: "",
-  code: "border-l-2 border-amber-500/70",
-  result: "border-l-2 border-emerald-500/70",
-  error: "border-l-2 border-red-500/70",
-  plan: "border-l-2 border-blue-500/70",
-};
-
-const TYPE_LABEL: Record<string, { text: string; color: string }> = {
-  code: { text: "CODE", color: "text-amber-500" },
-  result: { text: "RES", color: "text-emerald-500" },
-  error: { text: "ERR", color: "text-red-500" },
-  plan: { text: "PLAN", color: "text-blue-500" },
+const TYPE_CONFIG: Record<string, { border: string; label: string; labelBg: string }> = {
+  text: { border: "border-l-transparent", label: "", labelBg: "" },
+  code: { border: "border-l-[var(--color-msg-code)]", label: "CODE", labelBg: "bg-[var(--color-msg-code)]/15 text-[var(--color-msg-code)]" },
+  result: { border: "border-l-[var(--color-msg-result)]", label: "RESULT", labelBg: "bg-[var(--color-msg-result)]/15 text-[var(--color-msg-result)]" },
+  error: { border: "border-l-[var(--color-msg-error)]", label: "ERROR", labelBg: "bg-[var(--color-msg-error)]/15 text-[var(--color-msg-error)]" },
+  plan: { border: "border-l-[var(--color-msg-plan)]", label: "PLAN", labelBg: "bg-[var(--color-msg-plan)]/15 text-[var(--color-msg-plan)]" },
 };
 
 function timeAgo(dateStr: string): string {
@@ -36,120 +30,116 @@ export function MessageItem({ message, replyTarget, onReply }: Props) {
   const [metaOpen, setMetaOpen] = useState(false);
   const isAgent = message.user.role === "agent";
   const isDeleted = !!message.deleted_at;
-  const border = TYPE_BORDER[message.type] || "";
-  const label = TYPE_LABEL[message.type];
+  const cfg = TYPE_CONFIG[message.type] || TYPE_CONFIG.text;
   const meta = message.metadata as Record<string, string> | null;
 
   return (
     <div
-      className={`group relative px-3 py-2 md:px-4 transition-colors hover:bg-white/[0.03] ${
-        isAgent ? "bg-white/[0.02]" : ""
-      }`}
-    >
-      {/* Agent glow — left edge */}
-      {isAgent && (
-        <div className="absolute left-0 top-0 bottom-0 w-0.5 bg-blue-500/30" />
+      className={cn(
+        "group border-b border-border/50 border-l-4 transition-colors",
+        cfg.border,
+        isAgent ? "bg-card" : "bg-background",
+        "hover:bg-muted/30",
       )}
-
+    >
       {/* Reply context */}
       {replyTarget && (
-        <div className="mb-1 text-[10px] md:text-[11px] text-muted-foreground flex items-center gap-1 opacity-60 pl-7 md:pl-9">
-          <span>^</span>
-          <span className="font-medium">{replyTarget.user.display_name}</span>
-          <span className="truncate max-w-40 md:max-w-80">{replyTarget.content}</span>
+        <div className="px-4 pt-1.5 text-[10px] text-muted-foreground flex items-center gap-1">
+          <span className="text-primary font-bold">^</span>
+          <span className="font-bold">{replyTarget.user.display_name}</span>
+          <span className="truncate max-w-40 md:max-w-80 opacity-60">{replyTarget.content}</span>
         </div>
       )}
 
-      <div className={`flex items-start gap-2 md:gap-3 ${border} ${border ? "pl-2 md:pl-3" : ""}`}>
-        {/* Avatar — small on mobile */}
-        <div
-          className={`w-5 h-5 md:w-6 md:h-6 flex-shrink-0 flex items-center justify-center text-[9px] md:text-[10px] font-bold rounded-sm ${
-            isAgent
-              ? "bg-blue-500/20 text-blue-400"
-              : "bg-secondary text-muted-foreground"
-          }`}
-        >
-          {message.user.display_name[0]}
+      <div className="px-4 py-2">
+        {/* Header */}
+        <div className="flex items-center gap-2 text-[11px] flex-wrap">
+          {/* Name */}
+          <span className={cn(
+            "font-sans font-bold text-xs",
+            isAgent ? "text-primary" : "text-foreground"
+          )}>
+            {message.user.display_name}
+          </span>
+
+          {/* Agent badge */}
+          {isAgent && (
+            <span className="font-mono text-[9px] font-bold px-1.5 py-0.5 bg-primary/15 text-primary uppercase tracking-wider">
+              AGT
+            </span>
+          )}
+
+          {/* Type badge */}
+          {cfg.label && (
+            <span className={cn("font-mono text-[9px] font-bold px-1.5 py-0.5 uppercase tracking-wider", cfg.labelBg)}>
+              {cfg.label}
+            </span>
+          )}
+
+          {/* Time */}
+          <span className="text-muted-foreground font-mono tabular-nums md:hidden text-[10px]">
+            {timeAgo(message.created_at)}
+          </span>
+          <span className="text-muted-foreground font-mono tabular-nums hidden md:inline text-[10px]">
+            {new Date(message.created_at).toLocaleTimeString("en-US", {
+              hour12: false, hour: "2-digit", minute: "2-digit", second: "2-digit",
+            })}
+          </span>
+
+          {/* Seq */}
+          <span className="text-muted-foreground/30 font-mono tabular-nums text-[10px] hidden md:inline">
+            #{Number(message.seq)}
+          </span>
+
+          {/* Reply button */}
+          <button
+            type="button"
+            onClick={() => onReply(message.id)}
+            className="font-sans text-[10px] font-bold uppercase tracking-wider text-muted-foreground md:opacity-0 md:group-hover:opacity-60 hover:!text-primary transition-all ml-auto min-w-[44px] min-h-[44px] md:min-w-0 md:min-h-0 flex items-center justify-end"
+          >
+            Reply
+          </button>
         </div>
 
-        <div className="flex-1 min-w-0">
-          {/* Header */}
-          <div className="flex items-center gap-1.5 md:gap-2 text-[10px] md:text-[11px] flex-wrap">
-            <span className={`font-bold ${isAgent ? "text-blue-400" : "text-foreground"}`}>
-              {message.user.display_name}
-            </span>
-            {isAgent && (
-              <span className="text-[9px] px-1 bg-blue-500/20 rounded-sm text-blue-400">
-                AGT
-              </span>
-            )}
-            {label && (
-              <span className={`text-[9px] md:text-[10px] font-bold ${label.color}`}>
-                {label.text}
-              </span>
-            )}
-            {/* Mobile: relative time. Desktop: full time */}
-            <span className="text-muted-foreground tabular-nums md:hidden">
-              {timeAgo(message.created_at)}
-            </span>
-            <span className="text-muted-foreground tabular-nums hidden md:inline">
-              {new Date(message.created_at).toLocaleTimeString("en-US", {
-                hour12: false, hour: "2-digit", minute: "2-digit", second: "2-digit",
-              })}
-            </span>
-            <span className="text-muted-foreground/40 tabular-nums hidden md:inline">
-              #{Number(message.seq)}
-            </span>
-            {/* Reply — always visible on mobile (no hover), hover on desktop */}
-            <button
-              type="button"
-              onClick={() => onReply(message.id)}
-              className="text-[9px] md:text-[10px] text-muted-foreground md:opacity-0 md:group-hover:opacity-60 hover:!opacity-100 transition-opacity ml-auto min-w-[44px] min-h-[44px] md:min-w-0 md:min-h-0 flex items-center justify-end"
-            >
-              REPLY
-            </button>
-          </div>
-
-          {/* Content */}
-          <div className={`mt-0.5 text-[12px] md:text-[13px] leading-relaxed break-words ${
-            message.type === "code" ? "bg-black/20 px-2 py-1 rounded-sm whitespace-pre-wrap overflow-x-auto" : ""
-          } ${message.type === "error" ? "text-red-400" : ""}`}>
-            {isDeleted ? (
-              <span className="italic text-muted-foreground/40">[deleted]</span>
-            ) : (
-              message.content
-            )}
-          </div>
-
-          {/* Agent metadata — tap to expand on mobile, always compact on desktop */}
-          {meta && isAgent && (
-            <>
-              {/* Desktop: inline strip */}
-              <div className="hidden md:flex mt-1 gap-3 text-[10px] text-muted-foreground/50">
-                {meta.model && <span>{meta.model}</span>}
-                {meta.hostname && <span>{meta.hostname}</span>}
-                {meta.cwd && <span>{meta.cwd}</span>}
-                {meta.skill && <span className="text-blue-400/50">{meta.skill}</span>}
-              </div>
-              {/* Mobile: tap to expand */}
-              <button
-                type="button"
-                onClick={() => setMetaOpen(!metaOpen)}
-                className="md:hidden mt-1 text-[9px] text-muted-foreground/40 min-h-[32px] flex items-center"
-              >
-                {metaOpen ? "hide meta" : `${meta.model || "agent"} ...`}
-              </button>
-              {metaOpen && (
-                <div className="md:hidden mt-0.5 text-[10px] text-muted-foreground/50 space-y-0.5">
-                  {meta.model && <div>model: {meta.model}</div>}
-                  {meta.hostname && <div>host: {meta.hostname}</div>}
-                  {meta.cwd && <div>cwd: {meta.cwd}</div>}
-                  {meta.skill && <div className="text-blue-400/50">skill: {meta.skill}</div>}
-                </div>
-              )}
-            </>
+        {/* Content */}
+        <div className={cn(
+          "mt-1 text-[13px] leading-relaxed break-words font-mono",
+          message.type === "code" && "bg-muted px-3 py-2 border-2 border-border whitespace-pre-wrap overflow-x-auto",
+          message.type === "error" && "text-[var(--color-msg-error)]",
+        )}>
+          {isDeleted ? (
+            <span className="italic text-muted-foreground/40">[deleted]</span>
+          ) : (
+            message.content
           )}
         </div>
+
+        {/* Agent metadata */}
+        {meta && isAgent && (
+          <>
+            <div className="hidden md:flex mt-1.5 gap-3 text-[10px] font-mono text-muted-foreground/50">
+              {meta.model && <span>{meta.model}</span>}
+              {meta.hostname && <span>{meta.hostname}</span>}
+              {meta.cwd && <span className="text-muted-foreground/30">{meta.cwd}</span>}
+              {meta.skill && <span className="text-primary/50">{meta.skill}</span>}
+            </div>
+            <button
+              type="button"
+              onClick={() => setMetaOpen(!metaOpen)}
+              className="md:hidden mt-1 text-[9px] font-mono text-muted-foreground/40 min-h-[32px] flex items-center"
+            >
+              {metaOpen ? "[-] hide" : `[+] ${meta.model || "meta"}`}
+            </button>
+            {metaOpen && (
+              <div className="md:hidden mt-0.5 text-[10px] font-mono text-muted-foreground/50 space-y-0.5 pl-2 border-l-2 border-border">
+                {meta.model && <div>{meta.model}</div>}
+                {meta.hostname && <div>{meta.hostname}</div>}
+                {meta.cwd && <div>{meta.cwd}</div>}
+                {meta.skill && <div className="text-primary/50">{meta.skill}</div>}
+              </div>
+            )}
+          </>
+        )}
       </div>
     </div>
   );

ui/colony/src/index.css

@@ -1,13 +1,13 @@
 @import "tailwindcss";
-@import "@fontsource/jetbrains-mono/400.css";
-@import "@fontsource/jetbrains-mono/500.css";
-@import "@fontsource/jetbrains-mono/700.css";
+@import "@fontsource/inconsolata/400.css";
+@import "@fontsource/inconsolata/700.css";
+@import "@fontsource-variable/instrument-sans";
 
 @custom-variant dark (&:is(.dark *));
 
 @theme inline {
-  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
-  --font-sans: 'JetBrains Mono', ui-monospace, monospace;
+  --font-mono: 'Inconsolata', ui-monospace, monospace;
+  --font-sans: 'Instrument Sans Variable', system-ui, sans-serif;
 
   --color-ring: var(--ring);
   --color-input: var(--input);
@@ -32,42 +32,46 @@
   --color-sidebar-accent: var(--sidebar-accent);
   --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
   --color-sidebar-border: var(--sidebar-border);
-  --radius-sm: 2px;
-  --radius-md: 4px;
-  --radius-lg: 6px;
 
-  /* message type accents */
-  --color-msg-result: oklch(0.72 0.19 145);
-  --color-msg-error: oklch(0.63 0.24 25);
-  --color-msg-plan: oklch(0.68 0.16 250);
-  --color-msg-code: oklch(0.75 0.12 80);
-  --color-agent-glow: oklch(0.55 0.15 250 / 0.3);
+  /* Zero radii — brutalist, no rounded corners */
+  --radius-sm: 0;
+  --radius-md: 0;
+  --radius-lg: 0;
+  --radius-xl: 0;
+
+  /* Message type accents */
+  --color-hot: #F26522;
+  --color-msg-result: #22C55E;
+  --color-msg-error: #EF4444;
+  --color-msg-plan: #3B82F6;
+  --color-msg-code: #EAB308;
 }
 
 :root {
-  --background: oklch(0.12 0.005 260);
-  --foreground: oklch(0.85 0 0);
-  --card: oklch(0.15 0.005 260);
-  --card-foreground: oklch(0.85 0 0);
-  --popover: oklch(0.15 0.005 260);
-  --popover-foreground: oklch(0.85 0 0);
-  --primary: oklch(0.85 0 0);
-  --primary-foreground: oklch(0.12 0.005 260);
-  --secondary: oklch(0.2 0.005 260);
-  --secondary-foreground: oklch(0.75 0 0);
-  --muted: oklch(0.2 0.005 260);
-  --muted-foreground: oklch(0.55 0 0);
-  --accent: oklch(0.22 0.01 260);
-  --accent-foreground: oklch(0.85 0 0);
-  --destructive: oklch(0.63 0.24 25);
-  --border: oklch(0.22 0.01 260);
-  --input: oklch(0.2 0.005 260);
-  --ring: oklch(0.55 0.15 250);
-  --sidebar: oklch(0.1 0.005 260);
-  --sidebar-foreground: oklch(0.7 0 0);
-  --sidebar-accent: oklch(0.18 0.01 260);
-  --sidebar-accent-foreground: oklch(0.9 0 0);
-  --sidebar-border: oklch(0.2 0.01 260);
+  /* Warm concrete palette */
+  --background: #1a1917;
+  --foreground: #d4d0c8;
+  --card: #1f1e1b;
+  --card-foreground: #d4d0c8;
+  --popover: #1f1e1b;
+  --popover-foreground: #d4d0c8;
+  --primary: #F26522;
+  --primary-foreground: #1a1917;
+  --secondary: #2a2825;
+  --secondary-foreground: #a8a49c;
+  --muted: #252320;
+  --muted-foreground: #7a756c;
+  --accent: #2a2825;
+  --accent-foreground: #d4d0c8;
+  --destructive: #EF4444;
+  --border: #3a3632;
+  --input: #252320;
+  --ring: #F26522;
+  --sidebar: #151413;
+  --sidebar-foreground: #8a857c;
+  --sidebar-accent: #252320;
+  --sidebar-accent-foreground: #d4d0c8;
+  --sidebar-border: #2a2825;
 }
 
 @layer base {
@@ -77,7 +81,7 @@
   body {
     @apply bg-background text-foreground font-mono;
     font-size: 13px;
-    line-height: 1.5;
+    line-height: 1.6;
   }
   html, body, #root {
     height: 100%;