body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  color: #222;
  background: #fff;
}

#site-header * { box-sizing: border-box; }
#site-header .bar {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
#site-header .logo { display: inline-flex; align-items: center; flex-shrink: 0; }
#site-header .logo img { display: block; height: 56px; width: auto; }
#site-header .nav-toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
  padding: 0;
  margin: -1px;
}
#site-header .hamburger { display: none; }
#site-header nav { margin-left: auto; }
#site-header nav > ul {
  list-style: none;
  display: flex;
  gap: 2px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
  align-items: center;
}
#site-header nav a,
#site-header .dropdown-label {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  padding: 10px 12px;
  border-radius: 6px;
  color: #111;
  text-decoration: none;
  font: 500 15px/1 system-ui;
  cursor: pointer;
  background: none;
  border: 0;
}
#site-header nav a:hover,
#site-header nav a:focus,
#site-header .dropdown-label:hover {
  background: #f0f3f7;
  outline: 2px solid rgba(20, 76, 161, 0.15);
  outline-offset: 2px;
}
#site-header .has-dropdown { position: relative; }
#site-header .dropdown-label::after {
  content: ' \25BE';
  font-size: 11px;
  margin-left: 4px;
  color: #888;
}
#site-header .dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 250px;
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  padding: 8px 0;
  z-index: 100;
  list-style: none;
  margin: 0;
}
#site-header .dropdown li { margin: 0; }
#site-header .dropdown a {
  display: block;
  padding: 10px 18px;
  border-radius: 0;
  font-size: 14px;
  font-weight: 500;
  color: #222;
  white-space: nowrap;
}
#site-header .dropdown a:hover,
#site-header .dropdown a:focus {
  background: #f0f3f7;
  outline: none;
}
#site-header .has-dropdown:hover .dropdown,
#site-header .has-dropdown:focus-within .dropdown { display: block; }
#site-header .nav-category { display: none; }

@media (max-width: 840px) {
  #site-header .hamburger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    cursor: pointer;
    width: 44px;
    height: 44px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 22px;
    user-select: none;
    background: none;
    color: #333;
  }
  #site-header nav {
    display: none;
    width: 100%;
    order: 3;
  }
  #site-header .nav-toggle:checked ~ nav { display: block; }
  #site-header nav > ul {
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
    border-top: 1px solid #eee;
  }
  #site-header .dropdown {
    display: block !important;
    position: static;
    box-shadow: none;
    border: 0;
    padding: 0;
    margin: 0;
    min-width: auto;
    background: transparent;
  }
  #site-header .dropdown a {
    padding: 10px 14px 10px 28px;
    font-size: 15px;
    border-radius: 8px;
  }
  #site-header .dropdown-label { display: none; }
  #site-header .nav-category {
    display: block;
    padding: 14px 14px 4px;
    font: 700 11px/1 system-ui;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    cursor: default;
  }
  #site-header nav a {
    display: block;
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 16px;
  }
  #site-header nav a:hover,
  #site-header nav a:focus { background: #f0f3f7; }
}

#site-footer * { box-sizing: border-box; }
#site-footer .wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 16px;
  display: grid;
  gap: 16px;
  grid-template-columns: 1.2fr 1fr;
  align-items: start;
}
#site-footer .brand { display: flex; gap: 12px; align-items: center; }
#site-footer .brand img { display: block; height: 56px; width: auto; }
#site-footer .tag { color: #444; font: 600 14px/1.2 system-ui; }
#site-footer nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px 16px;
  grid-template-columns: 1fr 1fr;
}
#site-footer nav a {
  color: #222;
  text-decoration: none;
  padding: 6px 0;
  border-radius: 6px;
  font-size: 14px;
}
#site-footer nav a:hover,
#site-footer nav a:focus {
  background: #f1f1f1;
  outline: 2px solid rgba(20, 76, 161, 0.15);
  outline-offset: 2px;
}
#site-footer .legal {
  border-top: 1px solid #eaeaea;
  margin-top: 8px;
  padding: 12px 16px;
  color: #666;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}
#site-footer .links { display: flex; gap: 14px; flex-wrap: wrap; }
#site-footer .links a { color: #555; text-decoration: none; }
#site-footer .links a:hover,
#site-footer .links a:focus { text-decoration: underline; outline: 0; }

@media (max-width: 840px) {
  #site-footer .wrap { grid-template-columns: 1fr; gap: 12px; }
  #site-footer .brand { justify-content: flex-start; }
  #site-footer nav ul { grid-template-columns: 1fr; }
}

.related-guides {
  margin: 36px 0 0;
  padding: 22px;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background: #f8fbff;
}
.related-guides h2 {
  margin: 0 0 10px;
  font: 700 1.15rem/1.3 system-ui;
  color: #0f355d;
}
.related-guides p {
  margin: 0 0 12px;
  color: #4a5568;
  font-size: 0.95rem;
}
.related-guides ul { margin: 0; padding-left: 20px; }
.related-guides li { margin: 8px 0; }
.related-guides a { color: #1a5fb4; text-decoration: none; }
.related-guides a:hover { text-decoration: underline; }