:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #171a18;
  background: #eee8dc;
  --ink: #171a18;
  --paper: #f8f3e8;
  --paper-deep: #eee6d6;
  --red: #ee604d;
  --red-dark: #c73f32;
  --blue: #4aa7df;
  --blue-dark: #1978ad;
  --green: #54b985;
  --green-dark: #238058;
  --yellow: #f3c842;
  --phosphor: #7ff069;
  --muted: #66675f;
  --panel: #101715;
  --panel-line: #34423e;
  --blink-period: 1s;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

html:has(.how-popover:popover-open) { overflow: hidden; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    linear-gradient(rgba(37, 84, 112, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 84, 112, 0.055) 1px, transparent 1px),
    #eee8dc;
  background-size: 24px 24px;
}

button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.workbench {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 72px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(300px, 0.65fr);
  gap: 32px;
  align-items: end;
  padding: 28px 4px 36px;
}

.kit-label, .kicker, .module-type, .panel-bar, .location-heading,
.local-pill, .artifact-name, .board-caption, .footer-note {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kit-label, .kicker {
  margin: 0 0 10px;
  color: var(--red-dark);
  font-size: 0.76rem;
  font-weight: 800;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  max-width: 800px;
  margin-bottom: 18px;
  font-size: clamp(3.7rem, 8.5vw, 7.6rem);
  line-height: 0.82;
  letter-spacing: -0.075em;
}

h1 a {
  color: inherit;
  text-decoration-color: var(--red);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.08em;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(1.9rem, 4vw, 3.35rem);
  line-height: 1;
  letter-spacing: -0.045em;
}

h3 { margin-bottom: 7px; }

.hero-copy {
  max-width: 760px;
  margin-bottom: 0;
  color: #4e504b;
  font-size: clamp(1rem, 2vw, 1.22rem);
  line-height: 1.55;
}

.location-card {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 17px 18px;
  border: 1px solid #c9c4b8;
  border-radius: 14px;
  background: rgba(255, 250, 240, 0.62);
}

.location-heading {
  color: var(--muted);
  font-size: 0.71rem;
  font-weight: 850;
}

.location-card strong { font-size: 1.05rem; }
.location-card > span:not(.local-pill) { color: var(--muted); font-size: 0.9rem; }

.local-pill {
  justify-self: start;
  margin-top: 7px;
  padding: 5px 8px;
  border-radius: 6px;
  background: #ece9df;
  color: #5b5b52;
  font-size: 0.65rem;
  font-weight: 900;
}

.live-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #38b861;
  box-shadow: 0 0 0 3px rgba(56, 184, 97, 0.14), 0 0 12px rgba(56, 184, 97, 0.6);
}

.action-guide {
  position: sticky;
  z-index: 9;
  top: 10px;
  display: grid;
  gap: 11px;
  margin-bottom: 20px;
  padding: 14px 16px 11px;
  border: 2px solid var(--ink);
  border-radius: 16px;
  background: rgba(255, 250, 240, 0.96);
  box-shadow: 5px 6px 0 var(--ink);
  backdrop-filter: blur(10px);
}

.action-guide-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
}

.action-guide-kicker {
  margin: 0 0 2px;
  color: var(--red-dark);
  font: 900 0.64rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.1em;
}

.action-guide-head strong { display: inline; font-size: 0.92rem; }
.action-guide-note { margin-left: 8px; color: var(--muted); font-size: 0.76rem; }

.action-guide-next {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding: 0 13px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--yellow);
  color: var(--ink);
  box-shadow: 2px 3px 0 var(--ink);
  font-size: 0.74rem;
  font-weight: 900;
  text-decoration: none;
}

.action-guide-next[aria-disabled="true"] { cursor: wait; opacity: 0.58; }
.action-guide-next:not([aria-disabled="true"]):hover { transform: translate(-1px, -1px); box-shadow: 3px 4px 0 var(--ink); }

.action-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.action-steps li {
  display: grid;
  grid-template-columns: 28px auto;
  grid-template-rows: auto auto;
  column-gap: 8px;
  align-items: center;
  min-width: 0;
  padding: 7px 9px;
  border: 1px solid #aaa598;
  border-radius: 8px;
  background: rgba(238, 230, 214, 0.62);
  color: #77766f;
}

.action-steps li > span {
  grid-row: 1 / 3;
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border: 2px solid currentColor;
  border-radius: 50%;
  font: 900 0.72rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.action-steps strong { font-size: 0.76rem; }
.action-steps small { overflow: hidden; font-size: 0.62rem; text-overflow: ellipsis; white-space: nowrap; }
.action-steps li[data-state="active"] { border-color: var(--ink); background: #fff0b9; color: var(--ink); }
.action-steps li[data-state="active"] > span { background: var(--yellow); }
.action-steps li[data-state="done"] { border-color: #23764f; background: #dff4e6; color: #176c45; }
.action-steps li[data-state="done"] > span { background: var(--green); color: var(--ink); }
.action-steps li[data-state="error"] { border-color: var(--red-dark); background: #ffe0d8; color: #9d3027; }

.action-progress {
  height: 5px;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--paper-deep);
}

.action-progress span {
  display: block;
  width: 8%;
  height: 100%;
  background: var(--red);
  transition: width 320ms ease, background 320ms ease;
}

.action-guide[data-phase="flash"] .action-progress span { background: var(--green); }

.button-icon {
  display: inline-grid;
  min-width: 1.45em;
  place-items: center;
  font: 900 1.05em/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

main { display: grid; gap: 20px; }

.lesson {
  position: relative;
  overflow: hidden;
  padding: 34px;
  border: 2px solid var(--ink);
  border-radius: 22px;
  background: rgba(248, 243, 232, 0.96);
  box-shadow: 7px 7px 0 rgba(23, 26, 24, 0.95);
}

.source-lesson, .build-lesson, .flash-lesson { scroll-margin-top: 145px; }
.flash-lesson[data-next-action="true"] { box-shadow: 7px 7px 0 rgba(23, 26, 24, 0.95), 0 0 0 6px rgba(84, 185, 133, 0.35); }

.intro { margin-bottom: 20px; }

.lesson-number {
  position: absolute;
  top: 0;
  right: 0;
  min-width: 66px;
  padding: 12px 16px;
  border-bottom: 2px solid var(--ink);
  border-left: 2px solid var(--ink);
  border-bottom-left-radius: 14px;
  background: var(--yellow);
  font: 900 1.35rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  text-align: center;
}

.how-button {
  position: absolute;
  z-index: 1;
  top: 12px;
  right: 82px;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  min-height: 34px;
  padding: 0 11px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: #fffaf1;
  color: var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
  cursor: pointer;
  font: 850 0.68rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.how-icon {
  display: grid;
  width: 18px;
  height: 18px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  color: var(--red-dark);
  font: 900 0.7rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.how-button:hover { transform: translate(-1px, -1px); box-shadow: 3px 3px 0 var(--ink); }
.how-button:active { transform: translate(1px, 1px); box-shadow: 1px 1px 0 var(--ink); }
.how-button:focus-visible, .how-close:focus-visible { outline: 4px solid var(--blue); outline-offset: 3px; }

.how-popover {
  inset: 0;
  width: min(740px, calc(100% - 28px));
  max-height: min(82vh, 760px);
  margin: auto;
  padding: 0;
  overflow: auto;
  overscroll-behavior: contain;
  border: 3px solid var(--ink);
  border-radius: 18px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 10px 12px 0 var(--ink);
  scrollbar-width: none;
}

.how-popover::-webkit-scrollbar { display: none; }

.how-popover::backdrop {
  background: rgba(16, 23, 21, 0.66);
  backdrop-filter: blur(2px);
}

.how-popover-bar {
  position: sticky;
  z-index: 1;
  top: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 49px;
  padding-left: 18px;
  border-bottom: 2px solid var(--ink);
  background: var(--yellow);
  font: 900 0.72rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.08em;
}

.how-close {
  align-self: stretch;
  width: 50px;
  border: 0;
  border-left: 2px solid var(--ink);
  background: var(--red);
  color: var(--ink);
  cursor: pointer;
  font: 800 1.65rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.how-close:hover { background: #f77b69; }

.how-popover-body { padding: 28px 30px 30px; }

.how-kicker {
  margin-bottom: 9px;
  color: var(--red-dark);
  font: 900 0.69rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.09em;
}

.how-popover h3 {
  max-width: 610px;
  margin-bottom: 13px;
  font-size: clamp(1.65rem, 4vw, 2.45rem);
  line-height: 1.03;
  letter-spacing: -0.035em;
}

.how-popover h4 {
  margin: 24px 0 9px;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.how-lede { color: #4e504b; font-size: 1rem; line-height: 1.6; }

.how-popover pre {
  margin: 21px 0;
  padding: 17px 18px;
  overflow: auto;
  border: 2px solid var(--ink);
  border-radius: 11px;
  background: var(--panel);
  color: #dff3e6;
  font: 0.76rem/1.65 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.how-popover ul, .how-popover ol { margin: 13px 0 22px; padding-left: 24px; }
.how-popover li { margin-bottom: 9px; color: #424540; line-height: 1.55; }
.how-popover li::marker { color: var(--red-dark); font-weight: 900; }
.how-popover code { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
.how-popover p code, .how-popover li code { padding: 1px 4px; border-radius: 4px; background: var(--paper-deep); font-size: 0.88em; }

.wanix-idea {
  position: relative;
  margin-top: 24px;
  padding: 17px 18px 16px 116px;
  border: 2px solid var(--ink);
  border-left: 10px solid var(--blue);
  border-radius: 11px;
  background: #e9f5fb;
}

.wanix-idea strong {
  position: absolute;
  top: 18px;
  left: 15px;
  font: 900 0.68rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.06em;
}

.wanix-idea p { margin: 0; color: #35434a; font-size: 0.86rem; line-height: 1.5; }

.lesson-heading {
  max-width: 830px;
  margin-bottom: 28px;
  padding-right: 180px;
}

.lesson-heading > p:last-child {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.55;
}

.machine-flow {
  display: grid;
  grid-template-columns: minmax(190px, 1fr) 90px minmax(190px, 1fr) 90px minmax(190px, 1fr);
  align-items: center;
}

.machine {
  position: relative;
  min-height: 230px;
  padding: 34px 24px 23px;
  overflow: hidden;
  border: 2px solid var(--ink);
  border-radius: 17px;
  box-shadow: inset 0 0 0 3px rgba(255,255,255,0.28), 4px 5px 0 rgba(23, 26, 24, 0.25);
}

.machine::after, .control-module::after {
  content: "";
  position: absolute;
  right: 11px;
  bottom: 11px;
  width: 10px;
  height: 10px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--phosphor);
  box-shadow: 0 0 10px rgba(127, 240, 105, 0.8);
}

.browser-machine { background: var(--red); }
.linux-machine { background: var(--blue); }
.esp-machine { background: var(--green); }

.module-lights {
  position: absolute;
  top: 12px;
  left: 15px;
  display: flex;
  gap: 5px;
}

.module-lights i {
  width: 7px;
  height: 7px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: rgba(255,255,255,0.7);
}

.machine-index {
  position: absolute;
  top: 12px;
  right: 13px;
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: rgba(255,255,255,0.76);
  font-weight: 900;
}

.module-type {
  margin-bottom: 8px;
  font-size: 0.68rem;
  font-weight: 900;
}

.machine h3 { font-size: 1.75rem; letter-spacing: -0.04em; }
.machine p { min-height: 66px; line-height: 1.4; }
.machine code {
  display: inline-block;
  padding: 7px 9px;
  border: 1px solid rgba(23,26,24,0.55);
  border-radius: 7px;
  background: rgba(255,255,255,0.6);
  font-size: 0.73rem;
}

.cable {
  position: relative;
  height: 12px;
  border-top: 3px solid var(--ink);
  border-bottom: 3px solid var(--ink);
}

.cable::after {
  content: "";
  position: absolute;
  top: -8px;
  right: -2px;
  width: 14px;
  height: 22px;
  border: 2px solid var(--ink);
  border-radius: 4px;
  background: var(--yellow);
}

.cable span {
  position: absolute;
  top: -29px;
  left: 50%;
  width: 110px;
  transform: translateX(-50%);
  font: 700 0.63rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  text-align: center;
  text-transform: uppercase;
}

.red-blue { background: linear-gradient(90deg, var(--red), var(--blue)); }
.blue-green { background: linear-gradient(90deg, var(--blue), var(--green)); }

.namespace-grid, .source-grid, .device-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(290px, 0.65fr);
  gap: 18px;
}

.dark-panel {
  overflow: hidden;
  border: 2px solid var(--ink);
  border-radius: 15px;
  background: var(--panel);
  color: #e7f0e9;
  box-shadow: inset 0 0 0 3px #26322e;
}

.panel-bar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--panel-line);
  color: #b6c4bd;
  font-size: 0.68rem;
  font-weight: 800;
}

.tree-panel pre, .code-panel pre {
  margin: 0;
  padding: 22px;
  overflow: auto;
  color: #e7f0e9;
  font: 0.86rem/1.75 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.tree-panel em { color: #74847c; font-style: normal; }
.tree-root { color: var(--yellow); }
.tree-blue { color: #7acfff; }
.tree-red { color: #ff8e80; }
.tree-green { color: #83e6aa; }

.field-notes { display: grid; gap: 11px; }

.field-notes article {
  position: relative;
  min-height: 112px;
  padding: 17px 17px 14px 54px;
  border: 2px solid var(--ink);
  border-radius: 13px;
  background: #fffaf1;
}

.field-notes h3 { font-size: 1rem; }
.field-notes p { margin: 0; color: var(--muted); font-size: 0.85rem; line-height: 1.45; }

.note-index {
  position: absolute;
  top: 15px;
  left: 14px;
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--yellow);
  font-weight: 900;
}

details {
  border: 2px dashed #837e72;
  border-radius: 13px;
  background: rgba(255,255,255,0.45);
}

summary { padding: 13px 15px; cursor: pointer; font-weight: 800; }
details pre { margin: 0; padding: 0 15px 15px; overflow: auto; font-size: 0.72rem; }

.source-grid { grid-template-columns: minmax(280px, 0.65fr) minmax(0, 1.35fr); }

.control-module {
  position: relative;
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 42px 21px 21px;
  border: 2px solid var(--ink);
  border-radius: 16px;
  background: var(--red);
  box-shadow: inset 0 0 0 3px rgba(255,255,255,0.25), 4px 5px 0 rgba(23,26,24,0.25);
}

.control-module label { margin-top: 7px; font-size: 0.78rem; font-weight: 850; text-transform: uppercase; }

.action-callout {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 10px;
  align-items: center;
  padding: 11px;
  border: 2px solid var(--ink);
  border-left: 8px solid var(--yellow);
  border-radius: 10px;
  background: #fffaf1;
}

.action-callout > span {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--yellow);
  font-weight: 900;
}

.action-callout p { margin: 0; color: var(--muted); font-size: 0.74rem; line-height: 1.4; }
.action-callout strong { display: block; color: var(--ink); font-size: 0.78rem; text-transform: uppercase; }
.action-callout-next { border-left-color: var(--green); background: #edfff4; }
.action-callout-next > span { background: var(--green); }

.control-module input[type="text"], .control-module input:not([type]) {
  width: 100%;
}

#owner, #board-profile {
  min-height: 48px;
  padding: 0 13px;
  border: 2px solid var(--ink);
  border-radius: 9px;
  outline: none;
  background: #fffaf1;
  box-shadow: inset 0 2px 0 rgba(23,26,24,0.12);
}

#owner:focus, #board-profile:focus { box-shadow: 0 0 0 4px rgba(255,255,255,0.42); }
#board-profile { width: 100%; color: var(--ink); font: 750 0.72rem/1.25 ui-monospace, SFMono-Regular, Menlo, monospace; }
#board-profile:disabled { opacity: 0.6; }

.board-support {
  margin: -3px 0 2px;
  padding: 8px 10px;
  border: 1px solid var(--ink);
  border-radius: 7px;
  background: #fffaf1;
  color: var(--muted);
  font: 750 0.63rem/1.35 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.board-support::before { margin-right: 6px; font-weight: 900; }
.board-support[data-level="verified"]::before { content: "●"; color: #18864f; }
.board-support[data-level="community"]::before { content: "◐"; color: #a95b16; }

input[type="range"] {
  width: 100%;
  height: 22px;
  accent-color: var(--ink);
  cursor: ew-resize;
}

.range-readout {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  min-height: 40px;
  padding: 8px 10px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: #fffaf1;
  font: 750 0.72rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.mini-led, .board-led {
  flex: 0 0 auto;
  border: 2px solid #194729;
  border-radius: 50%;
  background: #132319;
  animation: led-blink var(--blink-period) steps(1, end) infinite;
}

.mini-led { width: 18px; height: 18px; }

@keyframes led-blink {
  0%, 49% { background: #a6ff66; box-shadow: 0 0 6px #a6ff66, 0 0 18px rgba(166,255,102,0.9); }
  50%, 100% { background: #17351f; box-shadow: none; }
}

#build, .flash-button {
  display: inline-flex;
  min-height: 52px;
  margin-top: 8px;
  gap: 9px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 2px solid var(--ink);
  border-radius: 9px;
  background: var(--yellow);
  color: var(--ink);
  box-shadow: 3px 4px 0 var(--ink);
  cursor: pointer;
  font-weight: 900;
}

#build:hover:not(:disabled), .flash-button:hover { transform: translate(-1px, -1px); box-shadow: 4px 5px 0 var(--ink); }
#build:active:not(:disabled), .flash-button:active { transform: translate(2px, 2px); box-shadow: 1px 2px 0 var(--ink); }
#build:disabled { cursor: wait; opacity: 0.6; }

#build:disabled .button-icon { animation: status-spin 1.2s steps(8, end) infinite; }
#build[data-next-action="true"], .flash-button[data-next-action="true"] { animation: next-action-pulse 1.5s ease-in-out infinite; }

@keyframes next-action-pulse {
  0%, 100% { box-shadow: 3px 4px 0 var(--ink), 0 0 0 0 rgba(243, 200, 66, 0.75); }
  50% { box-shadow: 3px 4px 0 var(--ink), 0 0 0 8px rgba(243, 200, 66, 0); }
}

.status { display: flex; min-height: 38px; gap: 8px; align-items: flex-start; margin: 4px 18px 0 0; font-size: 0.78rem; line-height: 1.4; }
.status-spinner {
  display: none;
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  margin-top: 1px;
  border: 2px solid rgba(23, 26, 24, 0.3);
  border-top-color: var(--ink);
  border-radius: 50%;
  animation: status-spin 700ms linear infinite;
}
.status[data-busy="true"] .status-spinner { display: block; }

@keyframes status-spin { to { transform: rotate(360deg); } }

.code-panel pre { min-height: 390px; max-height: 520px; }
.code-panel code { color: #dff3e6; }

.build-pipeline {
  display: grid;
  grid-template-columns: 1fr 38px 1fr 38px 1fr;
  align-items: center;
  margin-bottom: 16px;
}

.build-stage {
  position: relative;
  display: grid;
  grid-template-columns: 38px 1fr;
  grid-template-rows: auto auto;
  column-gap: 11px;
  padding: 15px;
  border: 2px solid var(--ink);
  border-radius: 13px;
  background: #fffaf1;
  transition: background 160ms ease, transform 160ms ease;
}

.build-stage > span {
  grid-row: 1 / 3;
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 9px;
  background: var(--paper-deep);
  font-weight: 900;
}

.build-stage strong { font-size: 0.9rem; }
.build-stage small { color: var(--muted); font-size: 0.68rem; }
.build-stage[data-state="active"] { background: #fff0b9; transform: translateY(-2px); }
.build-stage[data-state="active"] > span { background: var(--yellow); }
.build-stage[data-state="done"] { background: #dff4e6; }
.build-stage[data-state="done"] > span { background: var(--green); }
.pipeline-arrow { text-align: center; font-size: 1.5rem; font-weight: 900; }

.terminal-panel { min-height: 310px; }
.terminal { min-height: 265px; max-height: 500px; overflow: auto; padding: 18px; }
.terminal pre {
  margin: 0;
  color: var(--phosphor);
  font: 0.8rem/1.55 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  white-space: pre-wrap;
  word-break: break-word;
}
.terminal:empty::after {
  content: "The Linux build transcript will appear here.";
  color: #64736d;
  font: 0.8rem/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.artifact-grid {
  display: grid;
  grid-template-columns: 0.7fr 0.7fr 1.6fr;
  gap: 13px;
}

.artifact-card {
  display: grid;
  gap: 6px;
  padding: 18px;
  border: 2px solid var(--ink);
  border-radius: 13px;
  background: #fffaf1;
}

.artifact-card:nth-child(1) { border-top: 9px solid var(--red); }
.artifact-card:nth-child(2) { border-top: 9px solid var(--blue); }
.artifact-card:nth-child(3) { border-top: 9px solid var(--green); }
.artifact-name { margin: 0; font-size: 0.66rem; font-weight: 900; }
.artifact-card strong { overflow-wrap: anywhere; font: 850 1.28rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; }
.artifact-card span { color: var(--muted); font-size: 0.75rem; }

.flash-map {
  grid-column: 1 / -1;
  overflow: hidden;
  padding-bottom: 17px;
  border: 2px solid var(--ink);
  border-radius: 14px;
  background: #fffaf1;
}

.flash-map .panel-bar { border-color: var(--ink); background: var(--ink); color: white; }
.memory-ruler { display: flex; justify-content: space-between; padding: 15px 16px 5px; font: 0.64rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.memory-track {
  display: flex;
  height: 70px;
  margin: 7px 16px 13px;
  overflow: hidden;
  border: 2px solid var(--ink);
  border-radius: 8px;
}
.firmware-region {
  display: grid;
  width: 6.25%;
  min-width: 86px;
  place-items: center;
  background: repeating-linear-gradient(135deg, #ec6553 0, #ec6553 9px, #d9503e 9px, #d9503e 18px);
  color: #fff;
  font: 800 0.64rem/1.1 ui-monospace, SFMono-Regular, Menlo, monospace;
  text-align: center;
}
.filesystem-region {
  display: grid;
  flex: 1;
  place-items: center;
  background: repeating-linear-gradient(135deg, #e8e0d1 0, #e8e0d1 9px, #f5eee2 9px, #f5eee2 18px);
  color: #79766f;
  font: 700 0.68rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.flash-map p { margin: 0 16px; color: var(--muted); font-size: 0.8rem; }

.shell-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.6fr) minmax(0, 1.4fr);
  gap: 18px;
}

.shell-guide { display: grid; align-content: start; gap: 12px; }

.shell-idea {
  position: relative;
  padding: 17px 17px 16px 55px;
  border: 2px solid var(--ink);
  border-radius: 13px;
  background: #fffaf1;
}
.shell-idea h3 { font-size: 1rem; }
.shell-idea p { margin: 0; color: var(--muted); font-size: 0.84rem; line-height: 1.45; }
.shell-idea code { overflow-wrap: anywhere; }

.try-commands {
  display: grid;
  gap: 7px;
  padding: 16px;
  border: 2px solid var(--ink);
  border-radius: 13px;
  background: var(--blue);
}
.try-commands code {
  display: block;
  overflow-x: auto;
  padding: 7px 9px;
  border: 1px solid rgba(23,26,24,0.7);
  border-radius: 6px;
  background: rgba(255,255,255,0.75);
  font-size: 0.7rem;
  white-space: nowrap;
}

.shell-button {
  display: inline-flex;
  min-height: 50px;
  gap: 9px;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border: 2px solid var(--ink);
  border-radius: 9px;
  background: var(--yellow);
  box-shadow: 3px 4px 0 var(--ink);
  cursor: pointer;
  font-weight: 900;
}
.shell-button:disabled { cursor: wait; opacity: 0.55; }
.shell-button:not(:disabled):active { transform: translate(2px, 2px); box-shadow: 1px 2px 0 var(--ink); }
.terminal-icon { font-size: 0.8em; }
.shell-status { margin: 2px 0 0; color: var(--muted); font-size: 0.76rem; line-height: 1.4; }

.interactive-shell { min-height: 450px; }
.guest-shell-mount { height: 404px; padding: 10px; }
.guest-shell-mount wanix-term { min-width: 0; width: 100%; height: 100% !important; }
.shell-placeholder {
  display: grid;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  place-content: center;
  background: transparent;
  color: #64736d;
  cursor: pointer;
  text-align: center;
}
.shell-placeholder:disabled { cursor: wait; opacity: 0.65; }
.shell-placeholder:not(:disabled):hover, .shell-placeholder:not(:disabled):focus-visible { background: rgba(127, 240, 105, 0.05); color: #8fa69d; }
.shell-placeholder:focus-visible { outline: 2px solid var(--phosphor); outline-offset: -4px; }
.shell-placeholder-icon { color: var(--phosphor); font: 900 2rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.shell-placeholder-copy { margin-top: 12px; font: 0.78rem/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; }

.device-grid { grid-template-columns: minmax(300px, 0.85fr) minmax(0, 1.15fr); align-items: stretch; }

.board-stage {
  display: grid;
  min-height: 420px;
  place-items: center;
  padding: 38px 20px 20px;
  border: 2px solid var(--ink);
  border-radius: 17px;
  background: var(--green);
  box-shadow: inset 0 0 0 3px rgba(255,255,255,0.25);
}

.board {
  position: relative;
  width: 174px;
  height: 260px;
  border: 3px solid #143f54;
  border-radius: 9px;
  background:
    radial-gradient(circle at 50% 48%, rgba(255,255,255,0.08), transparent 45%),
    #166d94;
  box-shadow: 12px 16px 22px rgba(14, 46, 38, 0.27), inset 0 0 0 3px #45a2c8;
}

.antenna {
  position: absolute;
  top: 15px;
  left: 46px;
  width: 80px;
  height: 38px;
  border: 4px solid #e7ca55;
  border-bottom: 0;
  background: repeating-linear-gradient(90deg, transparent 0 8px, #e7ca55 8px 12px);
}

.chip {
  position: absolute;
  top: 68px;
  left: 34px;
  display: grid;
  width: 106px;
  height: 92px;
  place-items: center;
  border: 3px solid #d8d3c5;
  border-radius: 5px;
  background: #b9b7ad;
  color: #4e514d;
  box-shadow: inset 0 0 0 4px #d7d2c6;
  font: 900 1.25rem/0.72 ui-monospace, SFMono-Regular, Menlo, monospace;
  text-align: center;
}
.chip small { font-size: 0.7rem; }

.board-led {
  position: absolute;
  top: 175px;
  right: 29px;
  width: 18px;
  height: 18px;
}

.usb-port {
  position: absolute;
  bottom: -3px;
  left: 57px;
  width: 60px;
  height: 35px;
  border: 3px solid #4c4c49;
  border-radius: 6px 6px 0 0;
  background: #c9c8c1;
}

.pin-row {
  position: absolute;
  top: 33px;
  width: 10px;
  height: 188px;
  background: repeating-linear-gradient(#e7ca55 0 8px, transparent 8px 16px);
}
.pin-row.left { left: -7px; }
.pin-row.right { right: -7px; }

.board-caption {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 18px;
  font-size: 0.65rem;
  font-weight: 900;
}

.flash-controls { display: grid; align-content: center; gap: 16px; }
.safety-note {
  padding: 17px;
  border: 2px solid var(--ink);
  border-left: 10px solid var(--yellow);
  border-radius: 12px;
  background: #fffaf1;
}
.safety-note p { margin: 6px 0 0; color: var(--muted); font-size: 0.85rem; line-height: 1.5; }
.flash-button { width: 100%; min-height: 64px; margin: 0; background: var(--red); font-size: 1.05rem; }
.secondary-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.secondary-button {
  display: inline-flex;
  min-height: 44px;
  gap: 7px;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: #fffaf1;
  color: var(--ink);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 850;
  text-decoration: none;
}
.secondary-button:disabled { cursor: not-allowed; opacity: 0.45; }
.device-output {
  margin: 0;
  padding: 15px;
  overflow: auto;
  border: 2px solid var(--ink);
  border-radius: 10px;
  background: var(--panel);
  color: var(--phosphor);
  font: 0.76rem/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
  white-space: pre-wrap;
}

footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 28px;
  padding: 25px 6px;
  border-top: 2px solid var(--ink);
  color: #4f514c;
  font-size: 0.88rem;
  line-height: 1.5;
}
footer p { margin: 0; }
.footer-note { font-size: 0.7rem; letter-spacing: 0.04em; }

.footer-signoff {
  display: grid;
  grid-column: 1 / -1;
  gap: 10px;
  justify-items: center;
  padding-top: 4px;
}

.site-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px;
}

.web-badge {
  display: inline-flex;
  width: 88px;
  height: 31px;
  flex: 0 0 88px;
  align-items: stretch;
  overflow: hidden;
  border: 1px solid #111;
  color: #fff;
  background: #303060;
  box-shadow: 1px 1px 0 #fff, 2px 2px 0 #777;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  font-weight: 700;
  line-height: 1;
  text-align: left;
  text-decoration: none;
  image-rendering: pixelated;
}

.web-badge:visited { color: #fff; }

.badge-icon {
  display: inline-flex;
  width: 28px;
  flex: 0 0 28px;
  align-items: center;
  justify-content: center;
  border-right: 1px solid rgba(255, 255, 255, 0.55);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
  font-weight: 700;
  line-height: 29px;
  text-shadow: 1px 1px 0 #000;
}

.badge-copy {
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1px 2px 0;
  white-space: nowrap;
}

.badge-copy strong { display: block; font-size: 10px; letter-spacing: -0.04em; line-height: 1; }
.badge-copy small { display: block; margin-top: 2px; font-size: 6px; font-weight: 700; letter-spacing: 0.01em; line-height: 1; }

.badge-wanix { color: #b9ff8c; background: #020500; }
.badge-wanix .badge-icon { color: #b9ff8c; border-color: #4b9c2e; background: #182d10; font-family: "Courier New", Courier, monospace; }
.badge-wanix .badge-copy strong { color: #fff; font-family: "Courier New", Courier, monospace; font-size: 13px; }

.badge-local { color: #fff4ad; background: #133e72; }
.badge-local .badge-icon { color: #133e72; border-color: #fff4ad; background: #fff4ad; text-shadow: none; }
.badge-local .badge-copy strong { font-family: "Courier New", Courier, monospace; font-size: 11px; }

.badge-esp { color: #261400; background: #ffb52e; }
.badge-esp .badge-icon { color: #fff; border-color: #261400; background: #d74625; }
.badge-esp .badge-copy strong { font-family: "Courier New", Courier, monospace; font-size: 9px; }

.badge-closscraft { color: #ffef9b; background: #6f151a; }
.badge-closscraft .badge-icon { color: #6f151a; border-color: #ffef9b; background: #ffef9b; text-shadow: none; }
.badge-closscraft .badge-copy strong { color: #fff; font-family: "Courier New", Courier, monospace; font-size: 8px; }

.maker-credit { color: var(--muted); font-size: 0.72rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; }
.maker-credit a { color: var(--red-dark); }

wanix-namespace { display: none; }

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; }
  .location-card { max-width: 500px; }
  .machine-flow { grid-template-columns: 1fr; gap: 0; }
  .machine { min-height: auto; }
  .machine p { min-height: auto; }
  .cable { width: 12px; height: 62px; margin: 0 auto; border-top: 0; border-bottom: 0; border-left: 3px solid var(--ink); border-right: 3px solid var(--ink); }
  .cable::after { top: auto; right: -7px; bottom: -2px; width: 22px; height: 14px; }
  .cable span { top: 23px; left: 27px; width: 150px; transform: rotate(90deg); }
  .namespace-grid, .source-grid, .shell-grid, .device-grid { grid-template-columns: 1fr; }
  .artifact-grid { grid-template-columns: 1fr 1fr; }
  .artifact-card.wide { grid-column: 1 / -1; }
}

@media (max-width: 680px) {
  .workbench { width: min(100% - 18px, 1280px); padding-top: 18px; }
  .hero { padding: 18px 4px 26px; }
  h1 { font-size: clamp(3.4rem, 19vw, 5rem); }
  .action-guide { position: relative; top: auto; gap: 9px; padding: 13px; }
  .action-guide-head { grid-template-columns: 1fr; gap: 9px; }
  .action-guide-note { display: block; margin: 4px 0 0; line-height: 1.35; }
  .action-guide-next { width: 100%; }
  .action-steps { gap: 5px; }
  .action-steps li { grid-template-columns: 24px minmax(0, 1fr); padding: 7px 6px; }
  .action-steps li > span { width: 23px; height: 23px; }
  .action-steps small { display: none; }
  .action-steps strong { font-size: 0.67rem; }
  .lesson { padding: 26px 19px; border-radius: 17px; box-shadow: 4px 5px 0 rgba(23,26,24,0.95); }
  .lesson-number { min-width: 54px; padding: 10px 12px; font-size: 1rem; }
  .how-button { top: 9px; right: 65px; min-height: 31px; padding: 0 8px; font-size: 0.6rem; }
  .lesson-heading { padding-top: 36px; padding-right: 0; }
  .how-popover { width: calc(100% - 18px); max-height: calc(100dvh - 18px); border-radius: 13px; box-shadow: 5px 6px 0 var(--ink); }
  .how-popover-bar { min-height: 45px; padding-left: 13px; font-size: 0.64rem; }
  .how-close { width: 45px; }
  .how-popover-body { padding: 22px 18px 23px; }
  .how-popover pre {
    margin: 17px 0;
    padding: 13px;
    overflow-x: hidden;
    overflow-wrap: anywhere;
    white-space: pre-wrap;
    font-size: 0.68rem;
  }
  .wanix-idea { padding: 48px 14px 15px; }
  .build-pipeline { grid-template-columns: 1fr; gap: 7px; }
  .pipeline-arrow { transform: rotate(90deg); font-size: 1rem; }
  .artifact-grid { grid-template-columns: 1fr; }
  .artifact-card.wide { grid-column: auto; }
  .memory-ruler span:nth-child(2), .memory-ruler span:nth-child(3) { display: none; }
  .filesystem-region span { display: none; }
  .board-stage { min-height: 360px; }
  footer { grid-template-columns: 1fr; }
  .site-badges { max-width: 190px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .mini-led, .board-led { animation: none; background: #a6ff66; box-shadow: 0 0 8px #a6ff66; }
  #build:disabled .button-icon, #build[data-next-action="true"], .flash-button[data-next-action="true"], .status-spinner { animation: none; }
}