.firmware-reading { color: #171612; background: #f2efe6; }
.firmware-reading h1 { font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1.3; }
.firmware-reading h2 { font-size: clamp(1.5rem, 2.5vw, 2rem); line-height: 1.4; }
.firmware-reading article p { max-width: 80ch; }
.firmware-reading article code { color: #0956b8; font-family: Consolas, "Cascadia Mono", monospace; }
.firmware-reading article pre { overflow-x: auto; background: #fff; border: 1px solid #aebfd5; color: #0956b8; border-radius: 0; padding: 18px; font-size: 15px; line-height: 1.8; tab-size: 4; box-shadow: none; }
.firmware-reading article pre code { color: #0956b8; white-space: pre; overflow-wrap: normal; word-break: normal; font-size: inherit; background: transparent; padding: 0; }
.firmware-reading .source-label { margin: 28px 0 8px; font-size: .86rem; }
.firmware-reading .source-label a { color: #0956b8; text-underline-offset: 3px; }
.firmware-reading .table-scroll { overflow-x: auto; margin: 18px 0; }
.firmware-reading table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.firmware-reading th, .firmware-reading td { border: 1px solid #bbb7ad; padding: 12px 14px; vertical-align: top; text-align: left; }
.firmware-reading th { background: #e7e3d9; }
.firmware-reading td { background: #fbfaf5; min-width: 140px; }
.firmware-reading .bridge-figure { margin: 30px 0; padding: clamp(14px, 2vw, 24px); border: 1px solid #aaa59a; background: #fbfaf5; }
.firmware-reading figcaption { font-weight: 700; color: #171612; font-size: 1.1rem; margin: 0 0 20px; }
.firmware-reading .bridge-flow { list-style: none; margin: 0; padding: 0; }
.firmware-reading .bridge-flow > li { margin: 0; padding: 0; }
.firmware-reading .bridge-flow > li > div { border: 1px solid #aebfd5; padding: 14px 18px; background: #fff; }
.firmware-reading .bridge-flow strong { font-size: 1rem; }
.firmware-reading .bridge-flow p { margin: 7px 0 0; }
.firmware-reading .bridge-flow .bridge-arrow { display: flex; align-items: center; justify-content: center; gap: 12px; margin: 0; padding: 14px 10px; line-height: 1.55; color: #254a7b; text-align: center; }
.firmware-reading .bridge-arrow > span { flex: 0 0 20px; font-size: 26px; }
.firmware-reading .figure-key { margin: 20px 0 0; font-size: .9rem; color: #514b43; }
.firmware-reading .source-reading { margin-bottom: 30px; }
.firmware-reading .integration-index { padding-left: 25px; }
.firmware-reading .integration-index li { border-bottom: 1px solid #bbb7ad; padding: 14px 0; }
.firmware-reading .step-controls { display: flex; flex-wrap: wrap; gap: 9px; align-items: center; margin: 20px 0; }
.firmware-reading .step-controls[hidden], .firmware-reading .state-frame[hidden] { display: none; }
.firmware-reading .step-controls button { font: inherit; color: #0956b8; background: #fff; border: 1px solid #647f9f; padding: 9px 12px; cursor: pointer; border-radius: 0; }
.firmware-reading .step-controls button:hover, .firmware-reading .step-controls button[aria-pressed="true"] { background: #e9f0fc; }
.firmware-reading .step-controls button:focus-visible { outline: 3px solid #0956b8; outline-offset: 3px; }
.firmware-reading .step-controls button:disabled { cursor: default; opacity: .55; }
.firmware-reading .step-controls output { flex-basis: 100%; color: #514b43; }
.firmware-reading .state-frame { margin: 22px 0; padding-top: 15px; border-top: 1px solid #aebfd5; }
.firmware-reading .state-frame h3 { margin: 0 0 14px; }
.firmware-reading .state-direction { border-left: 3px solid #0956b8; padding-left: 12px; font-weight: 700; }
@media (max-width: 800px) {
  .firmware-reading .page-grid { display: block; width: min(100% - 28px, 760px); }
  .firmware-reading .toc { position: static; margin-bottom: 30px; max-height: none; }
  .firmware-reading .bridge-figure { margin-left: 0; margin-right: 0; }
  .firmware-reading article pre { font-size: 14px; }
  .firmware-reading th, .firmware-reading td { padding: 10px; }
}
@media print {
  .firmware-reading .state-frame[hidden] { display: block; }
  .firmware-reading .step-controls { display: none; }
  .firmware-reading .page-grid { display: block; width: 100%; }
  .firmware-reading .toc { display: none; }
}

/* Parent navigation shared by the firmware series and development notes. */
.firmware-reading .article-topbar { align-items: flex-start; flex-wrap: wrap; padding-top: 12px; padding-bottom: 12px; }
.firmware-reading .breadcrumbs { flex: 1 1 36rem; min-width: 0; font-size: 14px; line-height: 1.7; }
.firmware-reading .breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 4px 9px; list-style: none; margin: 0; padding: 0; }
.firmware-reading .breadcrumbs li { display: flex; align-items: baseline; gap: 9px; min-width: 0; max-width: 100%; }
.firmware-reading .breadcrumbs a, .firmware-reading .series-links a { color: #171612; font: inherit; font-weight: 650; text-decoration: underline; text-underline-offset: 3px; }
.firmware-reading .breadcrumbs a::before, .firmware-reading .series-links a::before { display: none; }
.firmware-reading .breadcrumbs li:first-child a::before { display: block; }
.firmware-reading .breadcrumbs [aria-current="page"] { color: #514b43; font-weight: 500; word-break: keep-all; overflow-wrap: anywhere; }
.firmware-reading .breadcrumb-separator { color: #777066; flex-shrink: 0; }
.firmware-reading .series-links { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 14px; line-height: 1.7; }
.firmware-reading .article-topbar a:focus-visible { outline: 2px solid #0956b8; outline-offset: 4px; }
@media (max-width: 800px) {
  .firmware-reading .article-topbar { gap: 8px; }
  .firmware-reading .breadcrumbs { flex-basis: 100%; }
}