/**
 * League System Styles
 * 联赛系统样式
 */

/* ============================================================================
   Container & Loading
   ============================================================================ */

#league-container {
  min-height: 100vh;
  padding-bottom: 80px;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.league-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  gap: 16px;
}

.league-loading .loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid #e2e8f0;
  border-top-color: #0f766e;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================================================
   Not Joined State
   ============================================================================ */

.league-not-joined {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 32px;
  text-align: center;
}

.league-not-joined .not-joined-icon {
  font-size: 72px;
  margin-bottom: 24px;
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.league-not-joined h2 {
  font-size: 24px;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 12px;
}

.league-not-joined p {
  font-size: 16px;
  color: #64748b;
  margin-bottom: 24px;
  line-height: 1.5;
}

.btn-join-league {
  padding: 16px 48px;
  font-size: 18px;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, #0f766e, #f97316);
  border: none;
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-join-league:active {
  transform: scale(0.98);
}

/* ============================================================================
   League Header
   ============================================================================ */

.league-header {
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-radius: 0 0 24px 24px;
}

.tier-badge-large {
  width: 72px;
  height: 72px;
  flex-shrink: 0;
}

.tier-badge-large img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.tier-info {
  flex: 1;
}

.tier-name {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 4px;
}

.tier-name-en {
  font-size: 14px;
  color: #64748b;
  margin: 0;
}

.rank-info {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.current-rank,
.weekly-xp {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.rank-label,
.xp-label {
  font-size: 11px;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.rank-value {
  font-size: 24px;
  font-weight: 700;
  color: #1e293b;
}

.xp-value {
  font-size: 18px;
  font-weight: 600;
  color: #0f766e;
}

/* ============================================================================
   Progress Bar Section
   ============================================================================ */

.league-progress-section {
  margin: 20px;
  padding: 20px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.zone-badge {
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  color: white;
  border-radius: 20px;
}

.group-info {
  font-size: 13px;
  color: #64748b;
}

.league-progress-bar {
  position: relative;
  height: 32px;
  display: flex;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 16px;
}

.progress-zone {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.progress-zone.promotion-zone {
  background: linear-gradient(90deg, #10b981, #34d399);
}

.progress-zone.safe-zone {
  background: linear-gradient(90deg, #94a3b8, #cbd5e1);
}

.progress-zone.demotion-zone {
  background: linear-gradient(90deg, #f87171, #ef4444);
}

.zone-label {
  font-size: 11px;
  font-weight: 600;
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.progress-marker {
  position: absolute;
  top: -8px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 10;
}

.marker-dot {
  width: 16px;
  height: 16px;
  background: #1e293b;
  border: 3px solid white;
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.marker-rank {
  margin-top: 4px;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 700;
  color: white;
  background: #1e293b;
  border-radius: 10px;
  white-space: nowrap;
}

.progress-legend {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #64748b;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.legend-dot.promotion {
  background: #10b981;
}

.legend-dot.demotion {
  background: #ef4444;
}

/* ============================================================================
   Season Countdown
   ============================================================================ */

.season-countdown {
  margin: 0 20px 20px;
  padding: 16px 20px;
  background: white;
  border-radius: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.countdown-icon {
  font-size: 28px;
}

.countdown-text {
  display: flex;
  flex-direction: column;
}

.countdown-label {
  font-size: 12px;
  color: #94a3b8;
}

.countdown-time {
  font-size: 18px;
  font-weight: 700;
  color: #1e293b;
}

/* ============================================================================
   Leaderboard
   ============================================================================ */

.league-leaderboard {
  margin: 0 20px 20px;
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.leaderboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid #f1f5f9;
}

.leaderboard-header h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1e293b;
  margin: 0;
}

.btn-refresh {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: #0f766e;
  background: #eef2ff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-refresh:active {
  background: #e0e7ff;
}

.leaderboard-list {
  max-height: 400px;
  overflow-y: auto;
}

.league-leaderboard-empty {
  padding: 40px 20px;
  text-align: center;
  color: #94a3b8;
  font-size: 14px;
}

/* Leaderboard Item */
.leaderboard-item {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  gap: 12px;
  border-bottom: 1px solid #f1f5f9;
  transition: background 0.2s;
}

.leaderboard-item:last-child {
  border-bottom: none;
}

.leaderboard-item.current-user {
  background: #fef3c7;
}

.leaderboard-item.promotion {
  border-left: 3px solid #10b981;
}

.leaderboard-item.demotion {
  border-left: 3px solid #ef4444;
}

.item-rank {
  width: 32px;
  text-align: center;
  flex-shrink: 0;
}

.rank-icon {
  font-size: 20px;
}

.rank-number {
  font-size: 14px;
  font-weight: 600;
  color: #64748b;
}

.item-avatar {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.avatar-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, #0f766e, #f97316);
  border-radius: 50%;
}

.item-info {
  flex: 1;
  min-width: 0;
}

.item-username {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #1e293b;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.item-level {
  font-size: 12px;
  color: #94a3b8;
}

.item-xp {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  flex-shrink: 0;
}

.item-xp .xp-value {
  font-size: 16px;
  font-weight: 700;
  color: #0f766e;
}

.item-xp .xp-label {
  font-size: 10px;
  color: #94a3b8;
  text-transform: uppercase;
}

/* ============================================================================
   Rewards Preview
   ============================================================================ */

.rewards-preview {
  margin: 0 20px 20px;
  padding: 20px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.rewards-preview h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1e293b;
  margin: 0 0 16px;
}

.rewards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.reward-card {
  padding: 16px;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.reward-card.current {
  background: #f8fafc;
}

.reward-card.promotion {
  background: linear-gradient(135deg, #ecfdf5, #d1fae5);
  border-color: #a7f3d0;
}

.reward-tier-badge {
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  color: white;
  border-radius: 20px;
}

.reward-items {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}

.reward-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.reward-icon {
  font-size: 16px;
}

.reward-amount {
  font-size: 14px;
  font-weight: 600;
  color: #1e293b;
}

.reward-label {
  font-size: 11px;
  color: #64748b;
  text-align: center;
}

/* ============================================================================
   Tier Badges Gallery
   ============================================================================ */

.tier-badges-gallery {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 16px 20px;
  overflow-x: auto;
}

.tier-badge-small {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 600;
  color: white;
  flex-shrink: 0;
  opacity: 0.5;
  transition: all 0.3s;
}

.tier-badge-small.active {
  opacity: 1;
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.tier-badge-small.bronze { background: linear-gradient(135deg, #CD7F32, #B87333); }
.tier-badge-small.silver { background: linear-gradient(135deg, #C0C0C0, #A8A8A8); }
.tier-badge-small.gold { background: linear-gradient(135deg, #FFD700, #FFA500); }
.tier-badge-small.diamond { background: linear-gradient(135deg, #B9F2FF, #87CEEB); }
.tier-badge-small.master { background: linear-gradient(135deg, #9B30FF, #7B1FA2); }

/* ============================================================================
   Rank Change Animations
   ============================================================================ */

@keyframes rank-up {
  0% { transform: translateY(20px); opacity: 0; }
  50% { transform: translateY(-5px); }
  100% { transform: translateY(0); opacity: 1; }
}

@keyframes rank-down {
  0% { transform: translateY(-20px); opacity: 0; }
  50% { transform: translateY(5px); }
  100% { transform: translateY(0); opacity: 1; }
}

.rank-change-up {
  animation: rank-up 0.5s ease-out;
}

.rank-change-down {
  animation: rank-down 0.5s ease-out;
}

.rank-change-indicator {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 12px;
  font-weight: 600;
  margin-left: 8px;
}

.rank-change-indicator.up {
  color: #10b981;
}

.rank-change-indicator.down {
  color: #ef4444;
}

/* ============================================================================
   League Promotion/Demotion Modal
   ============================================================================ */

.league-result-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 20px;
}

.league-result-content {
  background: white;
  border-radius: 24px;
  padding: 32px;
  text-align: center;
  max-width: 320px;
  width: 100%;
  animation: modal-appear 0.4s ease-out;
}

.league-result-content.promotion {
  background: linear-gradient(180deg, #ecfdf5 0%, white 50%);
}

.league-result-content.demotion {
  background: linear-gradient(180deg, #fef2f2 0%, white 50%);
}

.result-icon {
  font-size: 64px;
  margin-bottom: 16px;
}

.result-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.promotion .result-title {
  color: #059669;
}

.demotion .result-title {
  color: #dc2626;
}

.result-description {
  font-size: 16px;
  color: #64748b;
  margin-bottom: 24px;
  line-height: 1.5;
}

.new-tier-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px;
  background: #f8fafc;
  border-radius: 16px;
  margin-bottom: 24px;
}

.new-tier-badge {
  width: 48px;
  height: 48px;
}

.new-tier-badge img {
  width: 100%;
  height: 100%;
}

.new-tier-name {
  font-size: 20px;
  font-weight: 700;
}

.result-close-btn {
  width: 100%;
  padding: 16px;
  font-size: 16px;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, #0f766e, #f97316);
  border: none;
  border-radius: 12px;
  cursor: pointer;
}

/* ============================================================================
   Responsive Adjustments
   ============================================================================ */

@media (max-width: 360px) {
  .league-header {
    padding: 16px;
    gap: 12px;
  }

  .tier-badge-large {
    width: 56px;
    height: 56px;
  }

  .tier-name {
    font-size: 20px;
  }

  .rank-value {
    font-size: 20px;
  }

  .rewards-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================================
   Dark Mode Support
   ============================================================================ */

@media (prefers-color-scheme: dark) {
  #league-container {
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
  }

  .league-not-joined h2,
  .tier-name,
  .rank-value,
  .countdown-time,
  .leaderboard-header h3,
  .item-username,
  .rewards-preview h3,
  .reward-amount {
    color: #f1f5f9;
  }

  .league-not-joined p,
  .tier-name-en,
  .rank-label,
  .group-info,
  .countdown-label,
  .legend-item,
  .item-level,
  .reward-label {
    color: #94a3b8;
  }

  .league-progress-section,
  .season-countdown,
  .league-leaderboard,
  .rewards-preview {
    background: #1e293b;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  }

  .leaderboard-header,
  .leaderboard-item {
    border-color: #334155;
  }

  .leaderboard-item.current-user {
    background: #422006;
  }

  .reward-card {
    background: #0f172a;
    border-color: #334155;
  }

  .reward-card.promotion {
    background: linear-gradient(135deg, #064e3b, #065f46);
    border-color: #059669;
  }
}