:root {
  color-scheme: dark;
  font-family: "Avenir Next", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0f1318;
  color: #edf3f8;
}

.skip-link {
  position: fixed;
  left: 12px;
  top: -80px;
  z-index: 10;
  padding: 10px 14px;
  border-radius: 8px;
  background: #edf3f8;
  color: #0f1318;
}

.skip-link:focus { top: 12px; }

.mardo-guide-header,
.mardo-guide-footer {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1082px, 100%);
  margin: 0 auto;
  padding: 16px 28px;
  color: #b9c9d8;
}

.mardo-guide-header {
  border-bottom: 1px solid rgba(152, 176, 201, 0.18);
}

.mardo-guide-header a,
.mardo-guide-footer a {
  color: #edf3f8;
  text-decoration-color: rgba(145, 202, 255, 0.38);
  text-underline-offset: 0.16em;
}

.mardo-guide-header a:first-child {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  text-decoration: none;
}

.mardo-guide-header img { border-radius: 9px; }

.mardo-guide-footer {
  justify-content: center;
  gap: 7px;
  border-top: 1px solid rgba(152, 176, 201, 0.18);
  font-size: 14px;
}

.guide-index-body { margin: 0; background: #0f1318; }

.guide-index {
  box-sizing: border-box;
  width: min(900px, 100%);
  min-height: calc(100vh - 150px);
  margin: 0 auto;
  padding: 72px 28px;
}

.guide-index h1 { margin: 8px 0; font-size: clamp(36px, 7vw, 64px); }
.guide-index > p { max-width: 680px; color: #b9c9d8; font-size: 19px; }
.guide-index ul { display: grid; gap: 12px; margin: 42px 0 0; padding: 0; list-style: none; }

.guide-index li a {
  display: grid;
  gap: 5px;
  padding: 20px;
  border: 1px solid rgba(152, 176, 201, 0.18);
  border-radius: 12px;
  background: #151a20;
  color: #edf3f8;
  text-decoration: none;
}

.guide-index li a:hover { border-color: rgba(145, 202, 255, 0.65); }
.guide-index li span { color: #b9c9d8; line-height: 1.45; }

#guide article { font-size: 1rem; line-height: 1.55; }
#guide article h2 { margin-top: 1.5em; }
#guide article pre { font-size: 0.875rem; }
.guide-release-note {
  margin: 1.25em 0;
  padding: 14px 18px;
  border-left: 3px solid #42cdbd;
  border-radius: 0 8px 8px 0;
  background: #18262b;
  color: #d1e5e9;
  font-size: 0.9375rem;
}
a:focus-visible { outline: 2px solid #42cdbd; outline-offset: 4px; }

@media (max-width: 560px) {
  .mardo-guide-header,
  .mardo-guide-footer,
  .guide-index { padding-left: 18px; padding-right: 18px; }
  #guide article { padding-left: 18px; padding-right: 18px; }
}