/* layout.css */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
}

/* Header */
.site-header {
  height: var(--header-height);
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--primary-color);
}

/* Main Layout */
.main-wrapper {
  max-width: var(--max-width);
  margin: 40px auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: 40px;
  align-items: start;
}

@media (max-width: 800px) {
  .main-wrapper {
    grid-template-columns: 1fr;
    margin: 20px auto;
  }
  .nav-container {
    flex-wrap: wrap;
    gap: 12px;
  }
  .nav-links {
    flex-wrap: wrap;
    gap: 16px;
  }
}

.content-area {
  min-height: 500px;
}

/* Footer */
.site-footer {
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 40px 20px;
  text-align: center;
  margin-top: 80px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  list-style: none;
  margin-bottom: 16px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--primary-color);
}