.container {
  width: min(1100px, 92%);
  margin-inline: auto;
}

.container.narrow {
  width: min(720px, 92%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 1rem;
  height: var(--header-h);
  padding-inline: 4%;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.site-header.scrolled {
  box-shadow: var(--shadow);
}

.brand {
  font-weight: 800;
  font-size: 1.3rem;
  text-decoration: none;
  color: var(--primary);
  margin-right: auto;
}

.main-nav {
  display: flex;
  gap: 1.2rem;
}

.main-nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
}

.hero {
  padding: 5rem 0 4rem;
  background: var(--bg-alt);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin: 1.5rem 0 2.5rem;
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background: var(--bg-alt);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.2rem;
}

.site-footer {
  padding: 2rem 0;
  text-align: center;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 0.9rem 4%;
  }
}