* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: #ffffff;
  color: #222;
  line-height: 1.5;
}

.site-header {
  padding: 20px 0 10px;
  text-align: center;
  border-bottom: 1px solid #e5e5e5;
}

.site-logo {
  max-width: 220px; /* reduce to 180px if too big */
  width: 100%;
  height: auto;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: 24px;
  padding: 12px 0;
  border-bottom: 1px solid #f0f0f0;
}

.main-nav a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
}

.main-nav a:hover {
  text-decoration: underline;
}

.content {
  max-width: 1000px;
  margin: 40px auto;
  padding: 0 20px;
}

.site-footer {
  margin-top: 60px;
  padding: 20px 0;
  text-align: center;
  font-size: 14px;
  color: #777;
  border-top: 1px solid #e5e5e5;
}