.ad-placeholder {
  background: var(--bg-secondary);
  border: 1px dashed var(--border);
  border-radius: 8px;
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.75rem;
  transition: all 0.3s ease;
}

.ad-placeholder:hover {
  border-color: var(--accent-primary);
  background: rgba(0, 212, 170, 0.05);
}

.ad-placeholder-top {
  min-height: 90px;
  line-height: 90px;
  margin: 0 auto 30px auto;
  max-width: 728px;
}

.ad-placeholder-bottom {
  min-height: 90px;
  line-height: 90px;
  margin: 40px auto 0 auto;
  max-width: 728px;
}

.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 40px 0 20px;
  margin-top: 40px;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  cursor: pointer;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--accent-primary);
}

.footer-copyright {
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.8rem;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  max-width: 800px;
  max-height: 80vh;
  width: 100%;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  background: var(--bg-secondary);
  z-index: 1;
}

.modal-header h2 {
  margin: 0;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s ease;
}

.modal-close:hover {
  background: var(--bg-tertiary);
  color: var(--accent-primary);
}

.modal-body {
  padding: 24px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.modal-body h3 {
  color: var(--text-primary);
  font-size: 1.1rem;
  margin: 24px 0 12px;
}

.modal-body h3:first-child {
  margin-top: 0;
}

.modal-body p {
  margin-bottom: 16px;
}

.modal-body ul {
  margin: 12px 0 20px 24px;
}

.modal-body li {
  margin-bottom: 8px;
}

.modal-body strong {
  color: var(--text-primary);
}

.disclaimer-box {
  background: rgba(0, 212, 170, 0.1);
  border: 1px solid var(--accent-primary);
  border-radius: var(--radius);
  padding: 16px;
  margin: 20px 0;
}

.disclaimer-box p {
  margin: 0;
  color: var(--accent-primary);
  font-weight: 500;
}

.contact-info {
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  padding: 20px;
  margin: 20px 0;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.contact-item:last-child {
  margin-bottom: 0;
}

.contact-icon {
  font-size: 1.25rem;
}

.contact-label {
  color: var(--text-tertiary);
  font-size: 0.85rem;
}

.contact-value {
  color: var(--accent-primary);
  font-weight: 500;
}

.tip-card {
  background: var(--bg-tertiary);
  border-radius: 8px;
  padding: 16px;
  margin: 16px 0;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tip-card:hover {
  border-color: var(--accent-primary);
  background: rgba(0, 212, 170, 0.05);
}

.tip-title {
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: 8px;
}

.tip-summary {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

.tip-date {
  color: var(--text-tertiary);
  font-size: 0.8rem;
  margin-top: 8px;
}

.tip-read-more {
  color: var(--accent-primary);
  font-size: 0.85rem;
  margin-top: 8px;
  font-weight: 500;
}

.tip-back-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.9rem;
  margin-bottom: 16px;
  transition: all 0.2s ease;
}

.tip-back-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.article-title {
  font-size: 1.2rem;
  margin-bottom: 16px;
}

.article-body h3 {
  margin-top: 20px;
  font-size: 1.05rem;
}

.article-body ul {
  margin: 8px 0 16px 20px;
  padding: 0;
}

.article-body li {
  margin-bottom: 6px;
  line-height: 1.6;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 0.85rem;
}

.article-body th, .article-body td {
  padding: 8px 12px;
  text-align: left;
  border: 1px solid var(--border);
}

.article-body th {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-weight: 600;
}

.article-body td {
  color: var(--text-secondary);
}

.loading-text {
  text-align: center;
  padding: 40px 0;
  color: var(--text-tertiary);
}

@media (max-width: 600px) {
  .footer-links {
    gap: 20px;
  }
  
  .modal-content {
    max-height: 90vh;
  }
  
  .modal-body {
    padding: 16px;
  }
}