Colors keep their role: headers/banners darken to readable contrast (same hue), lessons uses the teal token, packages use indigo; +XP pop, streak milestone card, lazy confetti

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/screens/QuizScreen.tsx

@@ -1,6 +1,5 @@
 import { useEffect, useRef, useState } from 'react';
 import { AnimatePresence, motion } from 'motion/react';
-import confetti from 'canvas-confetti';
 import { Brain, Check, ChevronLeft, Coins, Flag, Heart, Infinity as InfinityIcon, Star, X } from 'lucide-react';
 import { api, ApiError, type AnswerResult, type Hearts, type Question, type ReportReason } from '@/api';
 import { useAppData } from '@/state/AppData';
@@ -165,7 +164,7 @@ export function QuizScreen({ lessonId, nodeId }: { lessonId?: number; nodeId?: s
         : await api.lesson.complete(lessonId, payload, completeKey.current);
       setPhase({ kind: 'result', result });
       sounds.finish();
-      if (result.stars >= 2) void confetti({ particleCount: 90, spread: 70, origin: { y: 0.35 } });
+      if (result.stars >= 2) void import('canvas-confetti').then(({ default: confetti }) => confetti({ particleCount: 90, spread: 70, origin: { y: 0.35 } }));
       void refreshHome();
       void refreshSummary();
     } catch (error) {
@@ -283,6 +282,17 @@ export function QuizScreen({ lessonId, nodeId }: { lessonId?: number; nodeId?: s
             !answer ? 'border-line bg-white text-indigo' : answer.correct ? 'border-green-200 bg-green-50 text-green-700' : 'border-purple-200 bg-purple-50 text-[#5B3FA0]'
           }`}>
             {bubble}
+            {answer?.correct && answer.xpEarned > 0 && (
+              <motion.span
+                key={question.id}
+                initial={{ opacity: 0, y: 8, scale: 0.8 }}
+                animate={{ opacity: 1, y: 0, scale: 1 }}
+                transition={{ type: 'spring', stiffness: 400, damping: 14 }}
+                className="mr-2 inline-block rounded-full bg-[#FFF3C4] px-2 py-0.5 text-[11px] font-black text-[#8A5A00]"
+              >
+                +{toFa(answer.xpEarned)} ⭐
+              </motion.span>
+            )}
           </div>
         </div>