body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #333;
}

.layout {
  display: grid;
  grid-template-columns: 400px 1fr;
  min-height: 100vh;
}

.sidebar {
  padding: 40px;
  border-right: 1px solid #ddd;
}

.content {
  max-width: 900px;
  padding: 40px 60px;
  color: #666;
  line-height: 1.6;
}

.site-title {
  font-size: 26px;
  margin: 25px 0;
}

.site-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.site-nav-link,
.github-link {
  color: #267cb9;
  text-decoration: none;
}

.nav-group {
  margin-bottom: 8px;
}

.nav-group-title {
  display: block;
  margin-bottom: 8px;
  color: #267cb9;
  text-decoration: none;
}

.nav-submenu {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 14px;
}

.content img {
  max-width: 800px;
  width: 100%;
  height: auto;
  display: block;
  margin: 20px 0;
  cursor: pointer;
  transition: transform 0.2s ease;
}
.content img:hover {
  transform: scale(1.02);
}

.image-modal {
  display: none;
  position: fixed;
  z-index: 9999;
  inset: 0;
  background: rgba(0,0,0,0.9);
  justify-content: center;
  align-items: center;
}

.image-modal-content {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
}

.image-modal-close {
  position: absolute;
  top: 20px;
  right: 35px;
  color: white;
  font-size: 40px;
  cursor: pointer;
}

.content ul {
  padding-left: 24px;
}

.content li {
  margin-bottom: 8px;
}

.content li p {
  margin: 2px 0;
}
.site-branding {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 25px 0 35px;
}

.site-logo {
  width: 70px;
  height: 70px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-title {
  font-size: 26px;
  margin: 0;
  line-height: 1.1;
}

.github-link {
  display: block;
  margin-top: 40px;
}