:root {
  --bg: #111318;
  --surface: #181b22;
  --surface-2: #20242d;
  --line: #343945;
  --ink: #f0eee8;
  --muted: #b4b9c2;
  --gold: #f0bd45;
  --teal: #67b9aa;
  --violet: #aaa1dc;
  --blue: #70aee7;
  --rust: #dc895e;
  --display: "Arial Black", "Arial", sans-serif;
  --body: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: Consolas, "SFMono-Regular", ui-monospace, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% -10%, rgba(240, 189, 69, 0.08), transparent 32%),
    var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.5;
}

a { color: inherit; }

button, input { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 12px;
  top: -48px;
  background: var(--gold);
  color: #111318;
  padding: 8px 12px;
  z-index: 10;
}

.skip:focus { top: 12px; }

.wrap {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

header.top {
  padding: 28px 0 8px;
}

.brand {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  flex-wrap: wrap;
}

.kicker {
  margin: 0 0 6px;
  font: 700 0.72rem/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  letter-spacing: -0.06em;
  line-height: 0.95;
}

h1 span { color: var(--gold); }

.lede {
  max-width: 62ch;
  margin: 14px 0 0;
  color: var(--muted);
}

.modes {
  display: flex;
  gap: 8px;
}

.modes button,
.companies button,
.events button,
.node,
.chip-btn {
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
}

.modes button {
  min-height: 44px;
  padding: 0 14px;
  font: 700 0.72rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.modes button[aria-pressed="true"],
.companies button[aria-pressed="true"] {
  background: var(--gold);
  border-color: var(--gold);
  color: #111318;
}

.companies {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 22px 0 14px;
}

.companies button {
  min-height: 40px;
  padding: 0 12px;
  border-radius: 999px;
}

.stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  gap: 18px;
  align-items: start;
}

.board, .chips {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 16px;
}

.legend, .hint, .fine {
  color: var(--muted);
  font-size: 0.84rem;
}

.legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin: 0 0 12px;
}

.swatch {
  display: inline-block;
  width: 22px;
  height: 0;
  border-top: 2px solid var(--gold);
  margin-right: 6px;
  vertical-align: middle;
}

.swatch.dash { border-top-style: dashed; }

.stack-scroll { overflow-x: auto; }

.stack { position: relative; min-width: 680px; }

.wires {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.layer {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 128px minmax(0, 1fr);
  gap: 8px 12px;
  align-items: center;
  margin-bottom: 36px;
}

.layer:last-child { margin-bottom: 0; }

.layer-name {
  margin: 0;
  font: 700 0.68rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.cols {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.cols.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.node {
  min-height: 64px;
  padding: 8px 10px;
  text-align: left;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
}

.node small {
  color: var(--muted);
  font-size: 0.75rem;
}

.node[data-layer="product"] { border-top: 3px solid var(--rust); }
.node[data-layer="lab"] { border-top: 3px solid var(--violet); }
.node[data-layer="cloud"] { border-top: 3px solid var(--blue); }
.node[data-layer="chip"] { border-top: 3px solid var(--teal); }

.node.is-hot {
  border-color: var(--gold);
  background: rgba(240, 189, 69, 0.12);
}

.node.is-also { border-color: var(--teal); }

.node.is-dim { color: var(--muted); }

.node.is-future {
  opacity: 0.45;
  border-style: dashed;
}

.node.is-layer { box-shadow: inset 0 0 0 1px var(--ink); }

.wire { fill: none; stroke: var(--line); stroke-width: 1.5; }
.wire.hot { stroke: var(--gold); stroke-width: 2.25; }
.wire.dash, .wire.dash-hot { stroke-dasharray: 5 5; }
.wire.dash-hot { stroke: var(--teal); stroke-width: 2; }
.wire.dim { opacity: 0.25; }

.panel {
  border: 1px solid var(--line);
  background: var(--bg);
  padding: 18px 18px 8px;
  min-height: 280px;
}

.panel h2 {
  margin: 0 0 8px;
  font-family: var(--display);
  letter-spacing: -0.04em;
  font-size: 1.8rem;
  line-height: 1;
}

.role { margin-top: 0; }

.panel p { color: var(--muted); }

.panel strong { color: var(--ink); font-weight: 650; }

.timeline {
  list-style: none;
  margin: 12px 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.timeline button {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  border-left: 2px solid var(--line);
  padding: 4px 0 4px 10px;
  cursor: pointer;
  color: var(--muted);
}

.timeline button[aria-current="true"] {
  border-left-color: var(--gold);
  color: var(--ink);
}

.timeline button.is-ahead { opacity: 0.45; }

.sources { font-size: 0.84rem; }

.sources a { color: var(--gold); }

.year-dock {
  margin-top: 16px;
  padding: 14px 16px 16px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.year-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.year-row label {
  font: 700 0.72rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

#year { flex: 1; accent-color: var(--gold); }

#year-out {
  min-width: 3.2rem;
  font-family: var(--display);
  font-size: 1.4rem;
}

.events {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  margin-top: 10px;
}

.events button {
  flex: 0 0 auto;
  min-height: 36px;
  padding: 0 10px;
  color: var(--muted);
  font-size: 0.82rem;
}

.events button[aria-current="true"] {
  color: #111318;
  background: var(--gold);
  border-color: var(--gold);
}

.events button.is-ahead { opacity: 0.45; }

.chips[hidden], .map[hidden] { display: none; }

.chip-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.chip-btn {
  background: var(--bg);
  padding: 10px;
  text-align: left;
}

.chip-btn[aria-pressed="true"] {
  border-color: var(--gold);
  box-shadow: inset 0 0 0 1px var(--gold);
}

.chip-btn span {
  display: block;
  font-family: var(--display);
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}

.chip-btn svg { width: 100%; height: auto; display: block; }

.schematic .line, .schematic .box { fill: none; stroke: var(--ink); stroke-width: 1.5; }
.schematic .hot { fill: rgba(240, 189, 69, 0.16); stroke: var(--gold); }
.schematic .quiet { fill: rgba(103, 185, 170, 0.12); stroke: var(--teal); }
.schematic text {
  fill: var(--ink);
  font-family: var(--body);
  font-size: 13px;
}

.diff-wrap { overflow-x: auto; margin-top: 14px; }

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  font-size: 0.92rem;
}

caption {
  text-align: left;
  font-family: var(--display);
  letter-spacing: -0.03em;
  font-size: 1.2rem;
  margin-bottom: 8px;
}

th, td {
  border: 1px solid var(--line);
  padding: 8px 10px;
  vertical-align: top;
  text-align: left;
}

th { background: var(--surface-2); }

td.is-col, th.is-col { background: rgba(240, 189, 69, 0.12); }

.page-sources {
  padding: 28px 0 48px;
}

.page-sources h2 {
  font-family: var(--display);
  letter-spacing: -0.04em;
  font-size: 1.6rem;
}

.page-sources ul { padding-left: 18px; color: var(--muted); }

.page-sources a { color: var(--gold); }

footer.site {
  border-top: 1px solid var(--line);
  padding: 18px 0 28px;
  color: var(--muted);
  font: 0.75rem/1.5 var(--mono);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

footer.site a { color: var(--gold); text-decoration: none; }

.hint[hidden] { display: none; }

.pointer {
  margin: 18px 0 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.92rem;
  max-width: 78ch;
}

.pointer strong { color: var(--ink); }

.pointer a { color: var(--gold); }

@media (max-width: 980px) {
  .stage { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .chip-grid { grid-template-columns: 1fr; }
  h1 { font-size: 2.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}