feat(odin): refine hero — Newsreader serif, red name, staggered entrance

- Swap Fraunces → Newsreader (literary serif, full Czech, optical sizing).
- Split the greeting so the user's first name renders in brand-red italic.
- Add a subtle staggered fade-in (framer-motion), skipped under
  prefers-reduced-motion.
- New description that names Odin and covers chat + invoice import.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/admin/components/odin/OdinChat.tsx

@@ -67,21 +67,18 @@ export default function OdinChat() {
   // Odin itself only needs ai.use, so the Save affordance is gated separately.
   const canSave = hasPermission("invoices.create");
   // Time-based Czech greeting + the user's first name (client-local time).
-  const greeting = (() => {
-    const h = new Date().getHours();
-    const part =
-      h < 9
-        ? "Dobré ráno"
-        : h < 12
-          ? "Dobrý den"
-          : h < 18
-            ? "Dobré odpoledne"
-            : "Dobrý večer";
-    const name = (user?.fullName || user?.username || "")
-      .trim()
-      .split(/\s+/)[0];
-    return name ? `${part}, ${name}` : part;
-  })();
+  const greetingHour = new Date().getHours();
+  const greetingPhrase =
+    greetingHour < 9
+      ? "Dobré ráno"
+      : greetingHour < 12
+        ? "Dobrý den"
+        : greetingHour < 18
+          ? "Dobré odpoledne"
+          : "Dobrý večer";
+  const userName = (user?.fullName || user?.username || "")
+    .trim()
+    .split(/\s+/)[0];
   const { data: usage } = useQuery(aiUsageOptions());
   const { data: convData, isPending: convPending } = useQuery(
     aiConversationsOptions(),
@@ -441,7 +438,8 @@ export default function OdinChat() {
           turns={turns}
           busy={busy}
           loading={messagesLoading}
-          greeting={greeting}
+          greetingPhrase={greetingPhrase}
+          userName={userName}
           threadRef={threadRef}
         />
 

src/admin/components/odin/OdinThread.tsx

@@ -1,13 +1,31 @@
 import Box from "@mui/material/Box";
 import Typography from "@mui/material/Typography";
+import { motion, useReducedMotion, type Variants } from "framer-motion";
 import type { ChatTurn } from "./types";
 import OdinMark from "./OdinMark";
 
+const MotionBox = motion.create(Box);
+
+// Staggered hero entrance (skipped under prefers-reduced-motion).
+const heroContainer: Variants = {
+  hidden: {},
+  show: { transition: { staggerChildren: 0.12, delayChildren: 0.06 } },
+};
+const heroItem: Variants = {
+  hidden: { opacity: 0, y: 14 },
+  show: {
+    opacity: 1,
+    y: 0,
+    transition: { duration: 0.55, ease: [0.16, 1, 0.3, 1] },
+  },
+};
+
 interface OdinThreadProps {
   turns: ChatTurn[];
   busy: boolean;
   loading: boolean;
-  greeting?: string;
+  greetingPhrase?: string;
+  userName?: string;
   threadRef: React.RefObject<HTMLDivElement | null>;
 }
 
@@ -38,9 +56,15 @@ export default function OdinThread({
   turns,
   busy,
   loading,
-  greeting,
+  greetingPhrase,
+  userName,
   threadRef,
 }: OdinThreadProps) {
+  const reduce = useReducedMotion();
+  const containerMotion = reduce
+    ? {}
+    : { variants: heroContainer, initial: "hidden", animate: "show" };
+  const itemMotion = reduce ? {} : { variants: heroItem };
   return (
     <Box
       ref={threadRef}
@@ -74,7 +98,8 @@ export default function OdinThread({
 
       {/* Empty state */}
       {turns.length === 0 && !busy && !loading && (
-        <Box
+        <MotionBox
+          {...containerMotion}
           sx={{
             flex: 1,
             display: "flex",
@@ -86,38 +111,59 @@ export default function OdinThread({
             px: 3,
           }}
         >
-          <Typography
-            component="h1"
-            sx={{
-              fontFamily: "'Fraunces', Georgia, 'Times New Roman', serif",
-              fontOpticalSizing: "auto",
-              fontWeight: 500,
-              fontSize: "clamp(2.1rem, 1.3rem + 2.5vw, 3.1rem)",
-              lineHeight: 1.06,
-              letterSpacing: "-0.015em",
-              color: "text.primary",
-              m: 0,
-            }}
-          >
-            {greeting || "Dobrý den"}
-          </Typography>
-          <Typography
-            component="p"
-            sx={{
-              fontFamily: "'Fraunces', Georgia, serif",
-              fontStyle: "italic",
-              fontWeight: 400,
-              fontSize: "clamp(1.05rem, 0.95rem + 0.45vw, 1.3rem)",
-              lineHeight: 1.55,
-              color: "text.secondary",
-              maxWidth: 500,
-              m: 0,
-            }}
-          >
-            Váš firemní AI asistent — zeptejte se na cokoli, nebo přiložte
-            fakturu (PDF) k importu.
-          </Typography>
-        </Box>
+          <MotionBox {...itemMotion}>
+            <Typography
+              component="h1"
+              sx={{
+                fontFamily: "'Newsreader', Georgia, 'Times New Roman', serif",
+                fontOpticalSizing: "auto",
+                fontWeight: 500,
+                fontSize: "clamp(2.2rem, 1.3rem + 2.6vw, 3.3rem)",
+                lineHeight: 1.05,
+                letterSpacing: "-0.01em",
+                color: "text.primary",
+                m: 0,
+              }}
+            >
+              {greetingPhrase || "Dobrý den"}
+              {userName && (
+                <>
+                  ,{" "}
+                  <Box
+                    component="span"
+                    sx={(t) => ({
+                      fontStyle: "italic",
+                      backgroundImage: `linear-gradient(120deg, ${t.vars!.palette.primary.light}, ${t.vars!.palette.primary.main})`,
+                      WebkitBackgroundClip: "text",
+                      backgroundClip: "text",
+                      WebkitTextFillColor: "transparent",
+                    })}
+                  >
+                    {userName}
+                  </Box>
+                </>
+              )}
+            </Typography>
+          </MotionBox>
+          <MotionBox {...itemMotion}>
+            <Typography
+              component="p"
+              sx={{
+                fontFamily: "'Newsreader', Georgia, serif",
+                fontStyle: "italic",
+                fontWeight: 400,
+                fontSize: "clamp(1.05rem, 0.95rem + 0.45vw, 1.3rem)",
+                lineHeight: 1.55,
+                color: "text.secondary",
+                maxWidth: 540,
+                m: 0,
+              }}
+            >
+              Zeptejte se na cokoli, nebo přiložte fakturu — Odin ji přečte a
+              připraví k uložení.
+            </Typography>
+          </MotionBox>
+        </MotionBox>
       )}
 
       {/* Message bubbles */}