/**
 * Footer CSS - Single Source of Truth
 * v1.0.0
 */

.site-footer {
  background: #fff;
  border-top: 1px solid #e5e7eb;
  padding: 24px 20px;
  margin-top: 40px;
}

.site-footer .footer-main {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13px;
  color: #94a3b8;
}

.site-footer a,
.site-footer .history-toggle {
  color: #64748b;
  text-decoration: none;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s ease;
}

.site-footer a:hover,
.site-footer .history-toggle:hover {
  color: #2563eb;
}

.site-footer .sep {
  color: #d1d5db;
}

.history-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.history-content.expanded {
  max-height: 400px;
  padding-top: 20px;
}

.history-content ul {
  list-style: none;
  max-width: 600px;
  margin: 0 auto;
  background: #f8fafc;
  border-radius: 8px;
  padding: 16px 24px;
}

.history-content li {
  font-size: 13px;
  color: #4a5568;
  padding: 8px 0;
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.history-content li:last-child {
  border-bottom: none;
}

.history-content .date {
  color: #2563eb;
  font-weight: 600;
  white-space: nowrap;
}