/* Rules page specific styles */
.navigation {
  display: flex;
  justify-content: center;
  margin-bottom: 30px;
  gap: 10px;
}

.nav-btn {
  padding: 12px 24px;
  background-color: #f0f0f0;
  border: 2px solid #ddd;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  font-weight: bold;
  transition: all 0.3s ease;
}

.nav-btn:hover {
  background-color: #e0e0e0;
  border-color: #bbb;
}

.nav-btn.active {
  background-color: #4a6da7;
  color: white;
  border-color: #4a6da7;
}

.variant-rules {
  display: none;
  animation: fadeIn 0.3s ease-in;
}

.variant-rules.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.variant-rules h2 {
  color: #333;
  border-bottom: 3px solid #4a6da7;
  padding-bottom: 10px;
  margin-bottom: 25px;
  font-size: 28px;
}

.rule-section {
  background-color: #f9f9f9;
  border-left: 4px solid #4a6da7;
  padding: 20px;
  margin-bottom: 20px;
  border-radius: 0 8px 8px 0;
}

.rule-section h3 {
  color: #4a6da7;
  margin-top: 0;
  margin-bottom: 15px;
  font-size: 20px;
}

.rule-section h4 {
  color: #666;
  margin-top: 15px;
  margin-bottom: 10px;
  font-size: 16px;
}

.rule-section ul {
  margin: 0;
  padding-left: 20px;
}

.rule-section li {
  margin-bottom: 8px;
  line-height: 1.6;
}

.rule-section li strong {
  color: #333;
}

.comparison-section {
  margin-top: 40px;
  padding-top: 30px;
  border-top: 2px solid #ddd;
}

.comparison-section h2 {
  text-align: center;
  color: #333;
  margin-bottom: 25px;
}

.comparison-table {
  overflow-x: auto;
  margin-bottom: 30px;
}

.comparison-table table {
  width: 100%;
  border-collapse: collapse;
  background-color: white;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  overflow: hidden;
}

.comparison-table th,
.comparison-table td {
  padding: 15px;
  text-align: left;
  border-bottom: 1px solid #ddd;
}

.comparison-table th {
  background-color: #4a6da7;
  color: white;
  font-weight: bold;
}

.comparison-table tr:nth-child(even) {
  background-color: #f9f9f9;
}

.comparison-table tr:hover {
  background-color: #f1f1f1;
}

.tips-section {
  margin-top: 40px;
  padding-top: 30px;
  border-top: 2px solid #ddd;
}

.tips-section h2 {
  text-align: center;
  color: #333;
  margin-bottom: 25px;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.tip-card {
  background-color: #f9f9f9;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.tip-card h3 {
  color: #4a6da7;
  margin-top: 0;
  margin-bottom: 15px;
  text-align: center;
}

.tip-card ul {
  margin: 0;
  padding-left: 20px;
}

.tip-card li {
  margin-bottom: 8px;
  line-height: 1.6;
}

.back-link {
  text-align: center;
  margin-top: 40px;
  padding-top: 30px;
  border-top: 2px solid #ddd;
}

.back-link .btn {
  display: inline-block;
  padding: 12px 24px;
  background-color: #4a6da7;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.back-link .btn:hover {
  background-color: #3a5d97;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .navigation {
    flex-direction: column;
    align-items: center;
  }
  
  .nav-btn {
    width: 200px;
    margin-bottom: 10px;
  }
  
  .rule-section {
    padding: 15px;
  }
  
  .comparison-table {
    font-size: 14px;
  }
  
  .comparison-table th,
  .comparison-table td {
    padding: 10px 8px;
  }
  
  .tips-grid {
    grid-template-columns: 1fr;
  }
  
  .variant-rules h2 {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 10px;
  }
  
  .rule-section {
    padding: 12px;
  }
  
  .comparison-table th,
  .comparison-table td {
    padding: 8px 6px;
    font-size: 12px;
  }
  
  .nav-btn {
    width: 100%;
    font-size: 14px;
    padding: 10px 16px;
  }
}

/* Print styles */
@media print {
  .navigation {
    display: none;
  }
  
  .variant-rules {
    display: block !important;
  }
  
  .back-link {
    display: none;
  }
  
  .rule-section {
    break-inside: avoid;
    page-break-inside: avoid;
  }
}