.achievements-page {
  min-height: calc(100vh - 60px);
  padding: 2rem 1rem;
  background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
  max-width: 1000px;
  margin: 0 auto;
}

.achievements-header {
  text-align: center;
  margin-bottom: 2rem;
  background: white;
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.achievements-header h1 {
  margin: 0;
  font-size: 2rem;
  color: #1e293b;
}

.achievements-subtitle {
  color: #64748b;
  margin: 0.5rem 0 1.5rem;
}

.achievements-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.stat-box {
  text-align: center;
}

.stat-box .stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: #1e293b;
}

.stat-box .stat-label {
  font-size: 0.85rem;
  color: #64748b;
}

.stat-box.highlight .stat-value {
  color: #6366f1;
}

.progress-bar-container {
  background: #e2e8f0;
  border-radius: 1rem;
  height: 12px;
  overflow: hidden;
  max-width: 400px;
  margin: 0 auto;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #6366f1 0%, #8b5cf6 100%);
  border-radius: 1rem;
  transition: width 0.5s ease;
}

/* Category Filters */
.category-filters {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: white;
  border: 2px solid #e2e8f0;
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn:hover {
  border-color: #6366f1;
}

.filter-btn.active {
  background: #6366f1;
  color: white;
  border-color: #6366f1;
}

/* Achievements Grid */
.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.achievement-card {
  display: flex;
  gap: 1rem;
  background: white;
  border-radius: 1rem;
  padding: 1.25rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: all 0.2s;
}

.achievement-card.earned {
  border-left: 4px solid #10b981;
}

.achievement-card.locked {
  opacity: 0.6;
  filter: grayscale(30%);
}

.achievement-card.locked:hover {
  opacity: 0.8;
}

.achievement-icon-wrap {
  position: relative;
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8fafc;
  border-radius: 50%;
}

.achievement-card.earned .achievement-icon-wrap {
  background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
}

.achievement-card.locked .achievement-icon-wrap {
  background: #f1f5f9;
}

.achievement-icon {
  font-size: 1.75rem;
}

.earned-check {
  position: absolute;
  bottom: -2px;
  right: -2px;
  background: #10b981;
  color: white;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid white;
}

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

.achievement-name {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  color: #1e293b;
}

.achievement-description {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  color: #64748b;
  line-height: 1.4;
}

.achievement-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.xp-reward {
  background: #f0f9ff;
  color: #0369a1;
  padding: 0.2rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.earned-date {
  font-size: 0.75rem;
  color: #94a3b8;
}

/* Progress for unearned achievements */
.achievement-progress {
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mini-progress-bar {
  flex: 1;
  height: 6px;
  background: #e2e8f0;
  border-radius: 3px;
  overflow: hidden;
}

.mini-progress-fill {
  height: 100%;
  background: #6366f1;
  border-radius: 3px;
  transition: width 0.3s;
}

.progress-text {
  font-size: 0.75rem;
  color: #64748b;
  white-space: nowrap;
}

.empty-state {
  text-align: center;
  padding: 3rem;
  color: #64748b;
}

.loading {
  text-align: center;
  padding: 4rem;
  color: #64748b;
}

@media (max-width: 640px) {
  .achievements-page {
    padding: 1rem;
  }

  .achievements-header {
    padding: 1.5rem;
  }

  .achievements-header h1 {
    font-size: 1.5rem;
  }

  .achievements-stats {
    gap: 1rem;
  }

  .stat-box .stat-value {
    font-size: 1.25rem;
  }

  .category-filters {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }

  .filter-btn {
    white-space: nowrap;
  }

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