/* Challenges Section */
.challenges-section {
  padding: 8rem 0;
  background: #ffffff;
}

.challenges-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.challenges-header {
  text-align: center;
  margin-bottom: 6rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.challenges-title {
  font-size: 4rem;
  font-weight: 700;
  color: #212529;
  margin-bottom: 2rem;
  text-align: center;
}

.challenges-subtitle {
  font-size: 2rem;
  color: #6c757d;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.challenges-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 3rem;
  margin-top: 4rem;
}

@media (min-width: 1400px) {
  .challenges-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
  }
}

@media (min-width: 1600px) {
  .challenges-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
  }
}

.challenge-item {
  background: #f8f9fa;
  padding: 3rem;
  border-radius: 20px;
  transition: all 0.3s ease;
  border: 1px solid #e9ecef;
}

.challenge-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
  border-color: #212529;
}

.challenge-icon {
  width: 60px;
  height: 60px;
  background: #212529;
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
}

.challenge-icon i {
  color: #ffffff;
  font-size: 2.4rem;
}

.challenge-title {
  font-size: 2.2rem;
  font-weight: 600;
  color: #212529;
  margin-bottom: 1.5rem;
}

.challenge-description {
  font-size: 1.6rem;
  color: #6c757d;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.challenge-stats {
  margin-top: 1.5rem;
}

.stat-highlight {
  background: linear-gradient(135deg, #212529 0%, #495057 100%);
  color: #ffffff;
  padding: 0.6rem 1.2rem;
  border-radius: 25px;
  font-size: 1.3rem;
  font-weight: 600;
  display: inline-block;
  box-shadow: 0 2px 10px rgba(33, 37, 41, 0.2);
}

/* Responsive Design for Challenges Section */
@media (max-width: 1200px) {
  .challenges-title {
    font-size: 3.5rem;
  }
}

@media (max-width: 1200px) and (min-width: 993px) {
  .challenges-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
  }
}

@media (max-width: 992px) {
  .challenges-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .challenges-title {
    font-size: 3rem;
  }
  
  .challenges-subtitle {
    font-size: 1.8rem;
  }
  
  .challenge-item {
    padding: 2rem;
  }
}

@media (max-width: 480px) {
  .challenges-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .challenges-container {
    padding: 0 1rem;
  }
  
  .challenges-title {
    font-size: 2.5rem;
  }
}