import ChallengeProgressCard from '@/components/challenges/ChallengeProgressCard';
import { HeaderBar } from '@/components/ui/HeaderBar';
import { Colors } from '@/constants/Colors';
import { useAppDispatch, useAppSelector } from '@/hooks/redux';
import { useAuthGuard } from '@/hooks/useAuthGuard';
import { useColorScheme } from '@/hooks/useColorScheme';
import {
  fetchChallengeDetail,
  joinChallenge,
  leaveChallenge,
  reportChallengeProgress,
  selectChallengeById,
  selectChallengeDetailError,
  selectChallengeDetailStatus,
  selectJoinError,
  selectJoinStatus,
  selectLeaveError,
  selectLeaveStatus,
  selectProgressStatus
} from '@/store/challengesSlice';
import { Toast } from '@/utils/toast.utils';
import { Ionicons } from '@expo/vector-icons';
import { BlurView } from 'expo-blur';
import { Image } from 'expo-image';
import { LinearGradient } from 'expo-linear-gradient';
import { useLocalSearchParams, useRouter } from 'expo-router';
import LottieView from 'lottie-react-native';
import React, { useEffect, useMemo, useState } from 'react';
import {
  ActivityIndicator,
  Alert,
  Dimensions,
  Platform,
  ScrollView,
  Share,
  StatusBar,
  StyleSheet,
  Text,
  TouchableOpacity,
  View,
} from 'react-native';
import { SafeAreaView, useSafeAreaInsets } from 'react-native-safe-area-context';

const { width } = Dimensions.get('window');
const HERO_HEIGHT = width * 0.76;
const CTA_GRADIENT: [string, string] = ['#5E8BFF', '#6B6CFF'];
const CTA_DISABLED_GRADIENT: [string, string] = ['#d3d7e8', '#c1c6da'];

const isHttpUrl = (value: string) => /^https?:\/\//i.test(value);

const formatMonthDay = (value?: string): string | undefined => {
  if (!value) return undefined;
  const date = new Date(value);
  if (Number.isNaN(date.getTime())) return undefined;
  return `${date.getMonth() + 1}月${date.getDate()}日`;
};

const buildDateRangeLabel = (challenge?: {
  startAt?: string;
  endAt?: string;
  periodLabel?: string;
  durationLabel?: string;
}): string => {
  if (!challenge) return '';
  const startLabel = formatMonthDay(challenge.startAt);
  const endLabel = formatMonthDay(challenge.endAt);
  if (startLabel && endLabel) {
    return `${startLabel} - ${endLabel}`;
  }
  return challenge.periodLabel ?? challenge.durationLabel ?? '';
};

const formatParticipantsLabel = (count?: number): string => {
  if (typeof count !== 'number') return '持续更新中';
  return `${count.toLocaleString('zh-CN')} 人正在参与`;
};

export default function ChallengeDetailScreen() {
  const { id } = useLocalSearchParams<{ id?: string }>();
  const router = useRouter();
  const dispatch = useAppDispatch();
  const theme = (useColorScheme() ?? 'light') as 'light' | 'dark';
  const colorTokens = Colors[theme];
  const insets = useSafeAreaInsets();

  const { ensureLoggedIn } = useAuthGuard();

  const challengeSelector = useMemo(() => (id ? selectChallengeById(id) : undefined), [id]);
  const challenge = useAppSelector((state) => (challengeSelector ? challengeSelector(state) : undefined));


  const detailStatusSelector = useMemo(() => (id ? selectChallengeDetailStatus(id) : undefined), [id]);
  const detailStatus = useAppSelector((state) => (detailStatusSelector ? detailStatusSelector(state) : 'idle'));
  const detailErrorSelector = useMemo(() => (id ? selectChallengeDetailError(id) : undefined), [id]);
  const detailError = useAppSelector((state) => (detailErrorSelector ? detailErrorSelector(state) : undefined));

  const joinStatusSelector = useMemo(() => (id ? selectJoinStatus(id) : undefined), [id]);
  const joinStatus = useAppSelector((state) => (joinStatusSelector ? joinStatusSelector(state) : 'idle'));
  const joinErrorSelector = useMemo(() => (id ? selectJoinError(id) : undefined), [id]);
  const joinError = useAppSelector((state) => (joinErrorSelector ? joinErrorSelector(state) : undefined));

  const leaveStatusSelector = useMemo(() => (id ? selectLeaveStatus(id) : undefined), [id]);
  const leaveStatus = useAppSelector((state) => (leaveStatusSelector ? leaveStatusSelector(state) : 'idle'));
  const leaveErrorSelector = useMemo(() => (id ? selectLeaveError(id) : undefined), [id]);
  const leaveError = useAppSelector((state) => (leaveErrorSelector ? leaveErrorSelector(state) : undefined));

  const progressStatusSelector = useMemo(() => (id ? selectProgressStatus(id) : undefined), [id]);
  const progressStatus = useAppSelector((state) => (progressStatusSelector ? progressStatusSelector(state) : 'idle'));

  useEffect(() => {
    const getData = async (id: string) => {
      try {
        await dispatch(fetchChallengeDetail(id)).unwrap;
      } catch (error) {
      }
    }

    if (id) {
      getData(id);
    }

  }, [dispatch, id]);


  const [showCelebration, setShowCelebration] = useState(false);


  useEffect(() => {
    if (!showCelebration) {
      return;
    }
    const timer = setTimeout(() => {
      setShowCelebration(false);
    }, 2400);
    return () => {
      clearTimeout(timer);
    };
  }, [showCelebration]);

  const progress = challenge?.progress;

  const rankingData = useMemo(() => challenge?.rankings ?? [], [challenge?.rankings]);

  const participantAvatars = useMemo(
    () => rankingData.filter((item) => item.avatar).map((item) => item.avatar as string).slice(0, 6),
    [rankingData],
  );

  const dateRangeLabel = useMemo(
    () =>
      buildDateRangeLabel({
        startAt: challenge?.startAt,
        endAt: challenge?.endAt,
        periodLabel: challenge?.periodLabel,
        durationLabel: challenge?.durationLabel,
      }),
    [challenge?.startAt, challenge?.endAt, challenge?.periodLabel, challenge?.durationLabel],
  );

  const handleShare = async () => {
    if (!challenge) {
      return;
    }
    try {
      await Share.share({
        title: challenge.title,
        message: `我正在参与「${challenge.title}」，一起坚持吧！`,
        url: challenge.image,
      });
    } catch (error) {
      console.warn('分享失败', error);
    }
  };

  const handleJoin = async () => {
    if (!id || joinStatus === 'loading') {
      return;
    }

    const isLoggedIn = await ensureLoggedIn();
    if (!isLoggedIn) {
      // 如果未登录，用户会被重定向到登录页面
      return;
    }

    try {
      await dispatch(joinChallenge(id));
      setShowCelebration(true)
    } catch (error) {
      Toast.error('加入挑战失败')
    }
  };

  const handleLeave = async () => {
    if (!id || leaveStatus === 'loading') {
      return;
    }
    try {
      await dispatch(leaveChallenge(id)).unwrap();
      await dispatch(fetchChallengeDetail(id)).unwrap();
    } catch (error) {
      Toast.error('退出挑战失败');
    }
  };

  const handleLeaveConfirm = () => {
    if (!id || leaveStatus === 'loading') {
      return;
    }
    Alert.alert('确认退出挑战？', '退出后需要重新加入才能继续坚持。', [
      { text: '取消', style: 'cancel' },
      {
        text: '退出挑战',
        style: 'destructive',
        onPress: () => {
          void handleLeave();
        },
      },
    ]);
  };

  const handleProgressReport = () => {
    if (!id || progressStatus === 'loading') {
      return;
    }
    dispatch(reportChallengeProgress({ id }));
  };

  const isJoined = challenge?.isJoined ?? false;
  const isLoadingInitial = detailStatus === 'loading' && !challenge;

  if (!id) {
    return (
      <SafeAreaView style={[styles.safeArea, { backgroundColor: colorTokens.background }]}>
        <HeaderBar title="挑战详情" onBack={() => router.back()} withSafeTop transparent={false} />
        <View style={styles.missingContainer}>
          <Text style={[styles.missingText, { color: colorTokens.textSecondary }]}>未找到该挑战，稍后再试试吧。</Text>
        </View>
      </SafeAreaView>
    );
  }

  if (isLoadingInitial) {
    return (
      <SafeAreaView style={[styles.safeArea, { backgroundColor: colorTokens.background }]}>
        <HeaderBar title="挑战详情" onBack={() => router.back()} withSafeTop transparent={false} />
        <View style={styles.missingContainer}>
          <ActivityIndicator color={colorTokens.primary} />
          <Text style={[styles.missingText, { color: colorTokens.textSecondary, marginTop: 16 }]}>加载挑战详情中…</Text>
        </View>
      </SafeAreaView>
    );
  }

  if (!challenge) {
    return (
      <SafeAreaView style={[styles.safeArea, { backgroundColor: colorTokens.background }]}>
        <HeaderBar title="挑战详情" onBack={() => router.back()} withSafeTop transparent={false} />
        <View style={styles.missingContainer}>
          <Text style={[styles.missingText, { color: colorTokens.textSecondary }]}>
            {detailError ?? '未找到该挑战，稍后再试试吧。'}
          </Text>
          <TouchableOpacity
            style={[styles.retryButton, { borderColor: colorTokens.primary }]}
            activeOpacity={0.9}
            onPress={() => dispatch(fetchChallengeDetail(id))}
          >
            <Text style={[styles.retryText, { color: colorTokens.primary }]}>重新加载</Text>
          </TouchableOpacity>
        </View>
      </SafeAreaView>
    );
  }

  const highlightTitle = challenge.highlightTitle ?? '立即加入挑战';
  const highlightSubtitle = challenge.highlightSubtitle ?? '邀请好友一起坚持，更容易收获成果';
  const joinCtaLabel = joinStatus === 'loading' ? '加入中…' : challenge.ctaLabel ?? '立即加入挑战';
  const isUpcoming = challenge.status === 'upcoming';
  const isExpired = challenge.status === 'expired';
  const upcomingStartLabel = formatMonthDay(challenge.startAt);
  const upcomingHighlightTitle = '挑战即将开始';
  const upcomingHighlightSubtitle = upcomingStartLabel
    ? `${upcomingStartLabel} 开始，敬请期待`
    : '挑战即将开启，敬请期待';
  const upcomingCtaLabel = '挑战即将开始';
  const expiredEndLabel = formatMonthDay(challenge.endAt);
  const expiredHighlightTitle = '挑战已结束';
  const expiredHighlightSubtitle = expiredEndLabel
    ? `${expiredEndLabel} 已截止，期待下一次挑战`
    : '本轮挑战已结束，期待下一次挑战';
  const expiredCtaLabel = '挑战已结束';
  const leaveHighlightTitle = '先别急着离开';
  const leaveHighlightSubtitle = '再坚持一下，下一个里程碑就要出现了';
  const leaveCtaLabel = leaveStatus === 'loading' ? '退出中…' : '退出挑战';

  let floatingHighlightTitle = highlightTitle;
  let floatingHighlightSubtitle = highlightSubtitle;
  let floatingCtaLabel = joinCtaLabel;
  let floatingOnPress: (() => void) | undefined = handleJoin;
  let floatingDisabled = joinStatus === 'loading';
  let floatingError = joinError;
  let isDisabledButtonState = false;

  if (isJoined) {
    floatingHighlightTitle = leaveHighlightTitle;
    floatingHighlightSubtitle = leaveHighlightSubtitle;
    floatingCtaLabel = leaveCtaLabel;
    floatingOnPress = handleLeaveConfirm;
    floatingDisabled = leaveStatus === 'loading';
    floatingError = leaveError;
  }

  if (isUpcoming) {
    floatingHighlightTitle = upcomingHighlightTitle;
    floatingHighlightSubtitle = upcomingHighlightSubtitle;
    floatingCtaLabel = upcomingCtaLabel;
    floatingOnPress = undefined;
    floatingDisabled = true;
    floatingError = undefined;
    isDisabledButtonState = true;
  }

  if (isExpired) {
    floatingHighlightTitle = expiredHighlightTitle;
    floatingHighlightSubtitle = expiredHighlightSubtitle;
    floatingCtaLabel = expiredCtaLabel;
    floatingOnPress = undefined;
    floatingDisabled = true;
    floatingError = undefined;
    isDisabledButtonState = true;
  }
  const floatingGradientColors = isDisabledButtonState ? CTA_DISABLED_GRADIENT : CTA_GRADIENT;
  const participantsLabel = formatParticipantsLabel(challenge.participantsCount);

  const inlineErrorMessage = detailStatus === 'failed' && detailError ? detailError : undefined;
  return (
    <View style={styles.safeArea}>
      <StatusBar barStyle="light-content" />
      <View style={styles.container}>
        <View pointerEvents="box-none" style={[styles.headerOverlay, { paddingTop: insets.top }]}>
          <HeaderBar
            title=""
            backColor="white"
            tone="light"
            transparent
            withSafeTop={false}
          // right={
          //   <TouchableOpacity style={styles.circularButton} activeOpacity={0.85} onPress={handleShare}>
          //     <Ionicons name="share-social-outline" size={20} color="#ffffff" />
          //   </TouchableOpacity>
          // }
          />
        </View>

        <ScrollView
          style={styles.scrollView}
          bounces
          showsVerticalScrollIndicator={false}
          contentContainerStyle={[
            styles.scrollContent,
            { paddingBottom: (Platform.OS === 'ios' ? 180 : 160) + insets.bottom },
          ]}
        >
          <View style={styles.heroContainer}>
            <Image source={{ uri: challenge.image }} style={styles.heroImage} cachePolicy={'memory-disk'} />
            <LinearGradient
              colors={['rgba(0,0,0,0.35)', 'rgba(0,0,0,0.15)', 'rgba(244, 246, 255, 1)']}
              style={StyleSheet.absoluteFillObject}
            />
          </View>

          <View style={styles.headerTextBlock}>
            <Text style={styles.title}>{challenge.title}</Text>
            {challenge.summary ? <Text style={styles.summary}>{challenge.summary}</Text> : null}
            {inlineErrorMessage ? (
              <View style={styles.inlineError}>
                <Ionicons name="warning-outline" size={14} color="#FF6B6B" />
                <Text style={styles.inlineErrorText}>{inlineErrorMessage}</Text>
              </View>
            ) : null}
          </View>

          {progress ? (
            <ChallengeProgressCard
              title={challenge.title}
              endAt={challenge.endAt}
              progress={progress}
              style={styles.progressCardWrapper}
            />
          ) : null}

          <View style={styles.detailCard}>
            <View style={styles.detailRow}>
              <View style={styles.detailIconWrapper}>
                <Ionicons name="calendar-outline" size={20} color="#4F5BD5" />
              </View>
              <View style={styles.detailTextWrapper}>
                <Text style={styles.detailLabel}>{dateRangeLabel}</Text>
                <Text style={styles.detailMeta}>{challenge.durationLabel}</Text>
              </View>
            </View>

            <View style={styles.detailRow}>
              <View style={styles.detailIconWrapper}>
                <Ionicons name="flag-outline" size={20} color="#4F5BD5" />
              </View>
              <View style={styles.detailTextWrapper}>
                <Text style={styles.detailLabel}>{challenge.requirementLabel}</Text>
                <Text style={styles.detailMeta}>按日打卡自动累计</Text>
              </View>
            </View>

            <View style={styles.detailRow}>
              <View style={styles.detailIconWrapper}>
                <Ionicons name="people-outline" size={20} color="#4F5BD5" />
              </View>
              <View style={[styles.detailTextWrapper, { flex: 1 }]}>
                <Text style={styles.detailLabel}>{participantsLabel}</Text>
                {participantAvatars.length ? (
                  <View style={styles.avatarRow}>
                    {participantAvatars.map((avatar, index) => (
                      <Image
                        key={`${avatar}-${index}`}
                        source={{ uri: avatar }}
                        style={[styles.avatar, index > 0 && styles.avatarOffset]}
                        cachePolicy={'memory-disk'}
                      />
                    ))}
                    {challenge.participantsCount && challenge.participantsCount > participantAvatars.length ? (
                      <TouchableOpacity style={styles.moreAvatarButton}>
                        <Text style={styles.moreAvatarText}>更多</Text>
                      </TouchableOpacity>
                    ) : null}
                  </View>
                ) : null}
              </View>
            </View>
          </View>

          <View style={styles.sectionHeader}>
            <Text style={styles.sectionTitle}>排行榜</Text>
            <TouchableOpacity>
              <Text style={styles.sectionAction}>查看全部</Text>
            </TouchableOpacity>
          </View>

          {challenge.rankingDescription ? (
            <Text style={styles.sectionSubtitle}>{challenge.rankingDescription}</Text>
          ) : null}

          <View style={styles.rankingCard}>
            {rankingData.length ? (
              rankingData.map((item, index) => (
                <View key={item.id} style={[styles.rankingRow, index > 0 && styles.rankingRowDivider]}>
                  <View style={styles.rankingOrderCircle}>
                    <Text style={styles.rankingOrder}>{index + 1}</Text>
                  </View>
                  {item.avatar ? (
                    <Image source={{ uri: item.avatar }} style={styles.rankingAvatar} cachePolicy={'memory-disk'} />
                  ) : (
                    <View style={styles.rankingAvatarPlaceholder}>
                      <Ionicons name="person-outline" size={20} color="#6f7ba7" />
                    </View>
                  )}
                  <View style={styles.rankingInfo}>
                    <Text style={styles.rankingName}>{item.name}</Text>
                    <Text style={styles.rankingMetric}>{item.metric}</Text>
                  </View>
                  {item.badge ? <Text style={styles.rankingBadge}>{item.badge}</Text> : null}
                </View>
              ))
            ) : (
              <View style={styles.emptyRanking}>
                <Text style={styles.emptyRankingText}>榜单即将开启，快来抢占席位。</Text>
              </View>
            )}
          </View>
        </ScrollView>

        <View pointerEvents="box-none" style={[styles.floatingCTAContainer, { paddingBottom: insets.bottom }]}>
          <BlurView intensity={10} tint="light" style={styles.floatingCTABlur}>
            <View style={styles.floatingCTAContent}>
              <View style={styles.highlightCopy}>
                <Text style={styles.highlightTitle}>{floatingHighlightTitle}</Text>
                <Text style={styles.highlightSubtitle}>{floatingHighlightSubtitle}</Text>
                {floatingError ? <Text style={styles.ctaErrorText}>{floatingError}</Text> : null}
              </View>
              <TouchableOpacity
                style={styles.highlightButton}
                activeOpacity={0.9}
                onPress={floatingOnPress}
                disabled={floatingDisabled}
              >
                <LinearGradient
                  colors={floatingGradientColors}
                  start={{ x: 0, y: 0 }}
                  end={{ x: 1, y: 1 }}
                  style={styles.highlightButtonBackground}
                >
                  <Text style={[styles.highlightButtonLabel, isDisabledButtonState && styles.highlightButtonLabelDisabled]}>
                    {floatingCtaLabel}
                  </Text>
                </LinearGradient>
              </TouchableOpacity>
            </View>
          </BlurView>
        </View>
      </View>
      {showCelebration && (
        <View pointerEvents="none" style={styles.celebrationOverlay}>
          <LottieView
            autoPlay
            loop={false}
            source={require('@/assets/lottie/Confetti.json')}
            style={styles.celebrationAnimation}
          />
        </View>
      )}
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
  },
  safeArea: {
    flex: 1,
    backgroundColor: '#f3f4fb',
  },
  headerOverlay: {
    position: 'absolute',
    left: 0,
    right: 0,
    top: 0,
    zIndex: 20,
  },
  heroContainer: {
    height: HERO_HEIGHT,
    width: '100%',
    overflow: 'hidden',
    position: 'absolute',
    top: 0
  },
  heroImage: {
    width: '100%',
    height: '100%',
  },
  scrollView: {
    flex: 1,
  },
  scrollContent: {
    paddingBottom: Platform.select({ ios: 40, default: 28 }),
  },
  progressCardWrapper: {
    marginTop: 20,
    marginHorizontal: 24,
  },
  floatingCTAContainer: {
    position: 'absolute',
    left: 0,
    right: 0,
    bottom: 0,
    paddingHorizontal: 20,
  },
  floatingCTABlur: {
    borderRadius: 24,
    overflow: 'hidden',
    borderWidth: 1,
    borderColor: 'rgba(255,255,255,0.6)',
    backgroundColor: 'rgba(243, 244, 251, 0.85)',
  },
  floatingCTAContent: {
    flexDirection: 'row',
    alignItems: 'center',
    paddingVertical: 16,
    paddingHorizontal: 20,
  },
  highlightCopy: {
    flex: 1,
    marginRight: 16,
  },
  headerTextBlock: {
    paddingHorizontal: 24,
    marginTop: HERO_HEIGHT - 60,
    alignItems: 'center',
  },
  periodLabel: {
    fontSize: 14,
    color: '#596095',
    letterSpacing: 0.2,
  },
  title: {
    marginTop: 10,
    fontSize: 24,
    fontWeight: '800',
    color: '#1c1f3a',
    textAlign: 'center',
  },
  summary: {
    marginTop: 12,
    fontSize: 14,
    lineHeight: 20,
    color: '#7080b4',
    textAlign: 'center',
  },
  inlineError: {
    marginTop: 12,
    paddingHorizontal: 12,
    paddingVertical: 8,
    borderRadius: 12,
    backgroundColor: 'rgba(255, 107, 107, 0.12)',
    flexDirection: 'row',
    alignItems: 'center',
  },
  inlineErrorText: {
    marginLeft: 6,
    fontSize: 12,
    color: '#FF6B6B',
    flexShrink: 1,
  },
  detailCard: {
    marginTop: 28,
    marginHorizontal: 20,
    padding: 20,
    borderRadius: 28,
    backgroundColor: '#ffffff',
    shadowColor: 'rgba(30, 41, 59, 0.18)',
    shadowOpacity: 0.2,
    shadowRadius: 20,
    shadowOffset: { width: 0, height: 12 },
    elevation: 8,
    gap: 20,
  },
  detailRow: {
    flexDirection: 'row',
    alignItems: 'center',
  },
  detailIconWrapper: {
    width: 42,
    height: 42,
    alignItems: 'center',
    justifyContent: 'center',
  },
  detailTextWrapper: {
    marginLeft: 14,
  },
  detailLabel: {
    fontSize: 15,
    fontWeight: '600',
    color: '#1c1f3a',
  },
  detailMeta: {
    marginTop: 4,
    fontSize: 12,
    color: '#6f7ba7',
  },
  avatarRow: {
    flexDirection: 'row',
    alignItems: 'center',
    marginTop: 12,
  },
  avatar: {
    width: 36,
    height: 36,
    borderRadius: 18,
    borderWidth: 2,
    borderColor: '#fff',
  },
  avatarOffset: {
    marginLeft: -12,
  },
  moreAvatarButton: {
    marginLeft: 12,
    paddingHorizontal: 12,
    paddingVertical: 6,
    borderRadius: 14,
    backgroundColor: '#EEF0FF',
  },
  moreAvatarText: {
    fontSize: 12,
    color: '#4F5BD5',
    fontWeight: '600',
  },
  sectionHeader: {
    marginTop: 36,
    marginHorizontal: 24,
    flexDirection: 'row',
    alignItems: 'center',
    justifyContent: 'space-between',
  },
  sectionTitle: {
    fontSize: 18,
    fontWeight: '700',
    color: '#1c1f3a',
  },
  sectionAction: {
    fontSize: 13,
    fontWeight: '600',
    color: '#5F6BF0',
  },
  sectionSubtitle: {
    marginTop: 8,
    marginHorizontal: 24,
    fontSize: 13,
    color: '#6f7ba7',
    lineHeight: 18,
  },
  rankingCard: {
    marginTop: 20,
    marginHorizontal: 24,
    borderRadius: 24,
    backgroundColor: '#ffffff',
    paddingVertical: 10,
    shadowColor: 'rgba(30, 41, 59, 0.12)',
    shadowOpacity: 0.16,
    shadowRadius: 18,
    shadowOffset: { width: 0, height: 10 },
    elevation: 6,
  },
  rankingRow: {
    flexDirection: 'row',
    alignItems: 'center',
    paddingVertical: 12,
    paddingHorizontal: 18,
  },
  rankingRowDivider: {
    borderTopWidth: StyleSheet.hairlineWidth,
    borderTopColor: '#E5E7FF',
  },
  rankingOrderCircle: {
    width: 32,
    height: 32,
    borderRadius: 16,
    alignItems: 'center',
    justifyContent: 'center',
    backgroundColor: '#EEF0FF',
    marginRight: 12,
  },
  rankingOrder: {
    fontSize: 15,
    fontWeight: '700',
    color: '#4F5BD5',
  },
  rankingAvatar: {
    width: 44,
    height: 44,
    borderRadius: 22,
    marginRight: 14,
  },
  rankingAvatarPlaceholder: {
    width: 44,
    height: 44,
    borderRadius: 22,
    marginRight: 14,
    alignItems: 'center',
    justifyContent: 'center',
    backgroundColor: '#EEF0FF',
  },
  rankingInfo: {
    flex: 1,
  },
  rankingName: {
    fontSize: 15,
    fontWeight: '700',
    color: '#1c1f3a',
  },
  rankingMetric: {
    marginTop: 4,
    fontSize: 13,
    color: '#6f7ba7',
  },
  rankingBadge: {
    fontSize: 12,
    color: '#A67CFF',
    fontWeight: '700',
  },
  emptyRanking: {
    paddingVertical: 40,
    alignItems: 'center',
  },
  emptyRankingText: {
    fontSize: 14,
    color: '#6f7ba7',
  },
  highlightTitle: {
    fontSize: 16,
    fontWeight: '700',
    color: '#1c1f3a',
  },
  highlightSubtitle: {
    marginTop: 4,
    fontSize: 12,
    color: '#5f6a97',
    lineHeight: 18,
  },
  ctaErrorText: {
    marginTop: 8,
    fontSize: 12,
    color: '#FF6B6B',
  },
  highlightButton: {
    borderRadius: 22,
    overflow: 'hidden',
  },
  highlightButtonBackground: {
    borderRadius: 22,
    paddingVertical: 10,
    paddingHorizontal: 18,
    alignItems: 'center',
    justifyContent: 'center',
  },
  highlightButtonLabel: {
    fontSize: 14,
    fontWeight: '700',
    color: '#ffffff',
  },
  highlightButtonLabelDisabled: {
    color: '#6f7799',
  },
  circularButton: {
    width: 40,
    height: 40,
    borderRadius: 20,
    backgroundColor: 'rgba(255,255,255,0.24)',
    alignItems: 'center',
    justifyContent: 'center',
    borderWidth: 1,
    borderColor: 'rgba(255,255,255,0.45)',
  },
  shareIcon: {
    fontSize: 18,
    color: '#ffffff',
    fontWeight: '700',
  },
  missingContainer: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
    paddingHorizontal: 32,
  },
  missingText: {
    fontSize: 16,
    textAlign: 'center',
  },
  retryButton: {
    marginTop: 18,
    paddingHorizontal: 20,
    paddingVertical: 10,
    borderRadius: 22,
    borderWidth: 1,
  },
  retryText: {
    fontSize: 14,
    fontWeight: '600',
  },
  celebrationOverlay: {
    ...StyleSheet.absoluteFillObject,
    alignItems: 'center',
    justifyContent: 'center',
    zIndex: 40,
  },
  celebrationAnimation: {
    width: width * 1.3,
    height: width * 1.3,
  },
});
