/* Orbital Archive No. 01 — style-guide presentation layer.
   Source of truth: tokens/dist/tokens.css (--lsm-*) + assets/fonts.css (faces).
   This file styles the guide itself; every color/type value resolves to a token
   alias declared in :root below. Externalized from index.html (was inline). */

:root {
  --orbit: var(--lsm-color-palette-orbit, #11181e);
  --graphite: var(--lsm-color-palette-graphite, #253139);
  --slate: var(--lsm-color-palette-slate, #2d3a42);
  --alloy: var(--lsm-color-palette-alloy, #37464f);
  --grid: var(--lsm-color-palette-gridline, #56656e);
  --dust: var(--lsm-color-palette-dust, #b3bbc2);
  --bone: var(--lsm-color-palette-bone, #e7e1d5);
  --teal: var(--lsm-color-palette-teal, #5ca3a6);
  --gold: var(--lsm-color-palette-gold, #cbae67);
  --orange: var(--lsm-color-palette-orange, #cb7248);
  --signal: var(--lsm-color-palette-signal, #7eb79e);
  --rust: var(--lsm-color-palette-rust, #c97a60);
  --fault: var(--lsm-color-palette-fault, #ea7468);
  --display: var(--lsm-font-display, "Oswald", "Arial Narrow", "Roboto Condensed", sans-serif);
  --sans: var(--lsm-font-sans, Inter, ui-sans-serif, system-ui, sans-serif);
  --mono: var(--lsm-font-mono, "IBM Plex Mono", "SFMono-Regular", Consolas, monospace);
  --pix: "Silkscreen", "IBM Plex Mono", monospace;
  --ink: var(--lsm-color-semantic-primary-foreground, #11181e);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  background: var(--graphite);
}
body {
  position: relative;
  margin: 0;
  color: var(--bone);
  background: var(--graphite);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
  opacity: 0.16;
  background:
    repeating-linear-gradient(
      0deg,
      transparent 0 3px,
      color-mix(in srgb, var(--bone), transparent 88%) 4px
    ),
    radial-gradient(
      circle at 20% 10%,
      color-mix(in srgb, var(--bone), transparent 86%) 0 1px,
      transparent 1.5px
    );
  background-size:
    auto,
    7px 7px;
  mix-blend-mode: soft-light;
  animation: oa-roll 5s linear infinite;
}
@keyframes oa-roll {
  to {
    background-position:
      0 4px,
      0 0;
  }
}
a {
  color: inherit;
}
button,
input,
select {
  font: inherit;
}
::selection {
  color: var(--orbit);
  background: var(--teal);
}
.skip {
  position: fixed;
  z-index: 1000;
  left: 12px;
  top: -80px;
  padding: 10px 14px;
  color: var(--orbit);
  background: var(--teal);
}
.skip:focus {
  top: 12px;
}
.frame {
  position: fixed;
  inset: 14px;
  z-index: 300;
  pointer-events: none;
  border: 1px solid color-mix(in srgb, var(--grid), transparent 45%);
}
.frame::before,
.frame::after {
  content: "+";
  position: absolute;
  color: var(--dust);
  font: 18px var(--mono);
}
.frame::before {
  left: -8px;
  top: -15px;
}
.frame::after {
  right: -8px;
  bottom: -15px;
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px clamp(18px, 4vw, 54px);
  border-bottom: 1px solid var(--grid);
  background: color-mix(in srgb, var(--orbit), transparent 8%);
  backdrop-filter: blur(18px);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  font: 700 16px/1 var(--display);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.brand svg {
  color: var(--teal);
}
.topbar nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
  overflow-x: auto;
}
.topbar nav a {
  min-width: max-content;
  padding: 9px 10px;
  color: var(--dust);
  text-decoration: none;
  font: 12px var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.topbar nav a:hover,
.topbar nav a:focus-visible {
  color: var(--bone);
  background: var(--slate);
  outline: none;
}
main {
  max-width: 1540px;
  margin: auto;
  padding: 0 clamp(20px, 5vw, 72px) 90px;
}
section {
  scroll-margin-top: 80px;
  padding: 68px 0;
  border-bottom: 1px solid var(--grid);
}
.section-head {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  margin-bottom: 28px;
}
.section-head .number {
  color: var(--gold);
  font: 12px var(--mono);
}
h2 {
  margin: 0;
  font: 700 clamp(32px, 4vw, 58px)/0.95 var(--display);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.section-head p {
  grid-column: 2;
  max-width: 760px;
  margin: 5px 0 0;
  color: var(--dust);
}
.section-head .token-ref {
  grid-column: 2;
  margin: 12px 0 0;
  color: var(--grid);
  font: 12px var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.section-head .token-ref code {
  color: var(--teal);
  font: inherit;
}
.grid {
  display: grid;
  gap: 1px;
  padding: 1px;
  background: var(--grid);
}
.principles {
  grid-template-columns: repeat(4, 1fr);
}
.principle {
  min-height: 180px;
  padding: 24px;
  background: var(--slate);
}
.principle b {
  display: block;
  color: var(--teal);
  font: 12px var(--mono);
}
.principle h3 {
  margin: 50px 0 6px;
  font: 700 28px var(--display);
  text-transform: uppercase;
}
.principle p {
  margin: 0;
  color: var(--dust);
  font-size: 13px;
}
.palette {
  grid-template-columns: repeat(4, 1fr);
}
.swatch-card {
  background: var(--slate);
}
.swatch {
  position: relative;
  height: 104px;
  overflow: hidden;
  background: var(--swatch);
}
.swatch::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background:
    linear-gradient(color-mix(in srgb, var(--orbit), transparent 45%) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--orbit), transparent 45%) 1px, transparent 1px),
    radial-gradient(
      circle,
      color-mix(in srgb, var(--orbit), transparent 30%) 0 0.5px,
      transparent 1.2px
    );
  background-size:
    16px 16px,
    16px 16px,
    7px 7px;
  mix-blend-mode: soft-light;
}
.swatch-copy {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px;
}
.swatch-copy strong {
  display: block;
  font: 700 18px var(--display);
  text-transform: uppercase;
}
.swatch-copy span {
  display: block;
  margin-top: 4px;
  color: var(--dust);
  font-size: 12px;
}
.swatch-copy code {
  color: var(--dust);
  font: 12px var(--mono);
}
.severity {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 20px;
}
.severity div {
  padding: 15px;
  color: var(--orbit);
  font: 700 12px var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.info {
  background: var(--teal);
}
.success {
  background: var(--signal);
}
.warning {
  background: var(--rust);
}
.error {
  background: var(--fault);
}
.type-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.9fr;
  gap: 1px;
  padding: 1px;
  background: var(--grid);
}
.type-card {
  min-height: 320px;
  padding: 24px;
  background: var(--slate);
}
.type-card .label {
  color: var(--teal);
  font: 12px var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.display-sample {
  margin: 45px 0 18px;
  font: 700 clamp(52px, 7vw, 92px)/0.83 var(--display);
  text-transform: uppercase;
}
.interface-sample {
  margin: 50px 0 12px;
  font-size: 28px;
}
.mono-sample {
  margin-top: 45px;
  white-space: pre-wrap;
  color: var(--teal);
  font: 13px/1.7 var(--mono);
}
.depths {
  grid-template-columns: repeat(3, 1fr);
}
.depth {
  min-height: 250px;
  padding: 24px;
  background: var(--slate);
}
.depth .ring {
  display: grid;
  place-items: center;
  width: 66px;
  height: 66px;
  border: 1px solid var(--teal);
  border-radius: 50%;
  color: var(--teal);
  font: 20px var(--mono);
}
.depth h3 {
  margin: 35px 0 6px;
  font: 700 28px var(--display);
  text-transform: uppercase;
}
.depth p {
  color: var(--dust);
}
.anatomy {
  grid-template-columns: 1fr 2fr 1fr;
}
.anatomy article {
  min-height: 235px;
  padding: 24px;
  background: var(--slate);
}
.anatomy b {
  color: var(--teal);
  font: 12px var(--mono);
  letter-spacing: 0.1em;
}
.anatomy h3 {
  margin: 34px 0 8px;
  font: 700 28px var(--display);
  text-transform: uppercase;
}
.anatomy p {
  margin: 0;
  color: var(--dust);
  font-size: 13px;
}
.layout-rules {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  padding: 1px;
  margin-top: 18px;
  background: var(--grid);
}
.layout-rules div {
  padding: 18px;
  background: var(--slate);
  color: var(--dust);
  font-size: 13px;
}
.layout-rules strong {
  display: block;
  margin-bottom: 5px;
  color: var(--bone);
  font: 700 17px var(--display);
  text-transform: uppercase;
}
.examples {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.example {
  overflow: hidden;
  border: 1px solid var(--grid);
  border-top: 2px solid var(--teal);
  background: var(--orbit);
  box-shadow: 0 20px 48px color-mix(in srgb, var(--orbit), transparent 55%);
}
.example:nth-child(3n + 2) {
  border-top-color: var(--gold);
}
.example:nth-child(3n) {
  border-top-color: var(--signal);
}
.example-copy {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 16px;
  border-bottom: 1px solid var(--grid);
  background: linear-gradient(
    120deg,
    color-mix(in srgb, var(--teal), transparent 92%),
    transparent 55%
  );
}
.example:nth-child(3n + 2) .example-copy {
  background: linear-gradient(
    120deg,
    color-mix(in srgb, var(--gold), transparent 92%),
    transparent 55%
  );
}
.example-copy h3 {
  margin: 0;
  font: 700 22px var(--display);
  text-transform: uppercase;
}
.example-copy p {
  grid-column: 1/-1;
  margin: 0;
  color: var(--dust);
  font-size: 12px;
}
.example-copy code {
  color: var(--teal);
  font: 12px var(--mono);
}
.mock {
  min-height: 280px;
  padding: 14px;
  background:
    radial-gradient(
      circle at 85% 10%,
      color-mix(in srgb, var(--teal), transparent 88%),
      transparent 16rem
    ),
    var(--graphite);
}
.mockbar {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 38px;
  padding: 8px 10px;
  border: 1px solid color-mix(in srgb, var(--teal), transparent 55%);
  background: var(--slate);
  font: 12px var(--mono);
  text-transform: uppercase;
}
.mockbar strong {
  margin-right: auto;
  color: var(--bone);
}
.mockbar span {
  color: var(--dust);
}
.mockbar .active {
  color: var(--teal);
  box-shadow: inset 0 -2px var(--teal);
}
.mockhero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 12px;
  min-height: 210px;
  padding: 28px 18px;
  align-items: end;
  background: linear-gradient(135deg, var(--orbit), var(--slate));
}
.mockhero::before {
  content: "";
  position: absolute;
  z-index: -1;
  width: 440px;
  height: 440px;
  right: -180px;
  bottom: -320px;
  border: 1px solid var(--teal);
  border-radius: 50%;
  box-shadow:
    0 0 0 54px color-mix(in srgb, var(--grid), transparent 70%),
    0 0 0 120px color-mix(in srgb, var(--gold), transparent 82%);
}
.mockhero h4 {
  margin: 0;
  font: 700 clamp(32px, 5vw, 56px)/0.85 var(--display);
  text-transform: uppercase;
}
.mockhero p {
  max-width: 330px;
  color: var(--dust);
  font-size: 12px;
}
.mockcta {
  display: inline-flex;
  padding: 9px 12px;
  background: linear-gradient(
    135deg,
    var(--orange),
    color-mix(in srgb, var(--orange), var(--bone) 14%)
  );
  box-shadow: 0 8px 22px color-mix(in srgb, var(--orange), transparent 82%);
  color: var(--orbit);
  font: 700 12px var(--mono);
  text-transform: uppercase;
}
.mockcta.editorial {
  background: linear-gradient(
    135deg,
    var(--orange),
    color-mix(in srgb, var(--orange), var(--gold) 24%)
  );
  box-shadow: 0 8px 22px color-mix(in srgb, var(--orange), transparent 84%);
}
.side-shell {
  display: grid;
  grid-template-columns: 120px 1fr;
  min-height: 250px;
}
.mockside {
  padding: 12px;
  border-right: 1px solid color-mix(in srgb, var(--teal), transparent 50%);
  background: linear-gradient(
    180deg,
    var(--orbit),
    color-mix(in srgb, var(--orbit), var(--teal) 7%)
  );
}
.mockside strong {
  display: block;
  margin-bottom: 20px;
  font: 700 13px var(--display);
  text-transform: uppercase;
}
.mockside span {
  display: block;
  padding: 7px 6px;
  color: var(--dust);
  font: 12px var(--mono);
}
.mockside .active {
  color: var(--teal);
  border-left: 2px solid var(--teal);
  background: color-mix(in srgb, var(--teal), transparent 90%);
}
.mockmain {
  padding: 14px;
}
.mocktitle {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}
.mocktitle h4 {
  margin: 0;
  font: 700 23px var(--display);
  text-transform: uppercase;
}
.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.metric {
  padding: 12px;
  border: 1px solid var(--grid);
  border-top-color: var(--teal);
  background: linear-gradient(
    145deg,
    var(--slate),
    color-mix(in srgb, var(--slate), var(--teal) 5%)
  );
}
.metric:nth-child(2) {
  border-top-color: var(--gold);
}
.metric:nth-child(3) {
  border-top-color: var(--signal);
}
.metric b {
  display: block;
  color: var(--teal);
  font: 700 24px var(--display);
}
.metric:nth-child(2) b {
  color: var(--gold);
}
.metric:nth-child(3) b {
  color: var(--signal);
}
.metric span {
  color: var(--dust);
  font: 12px var(--mono);
  text-transform: uppercase;
}
.workgrid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 8px;
  margin-top: 8px;
}
.panel {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 92px;
  padding: 12px;
  border: 1px solid var(--grid);
  border-top-color: color-mix(in srgb, var(--teal), transparent 30%);
  background: linear-gradient(
    145deg,
    var(--slate),
    color-mix(in srgb, var(--slate), var(--teal) 4%)
  );
}
.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.14;
  background:
    repeating-linear-gradient(
      0deg,
      transparent 0 4px,
      color-mix(in srgb, var(--bone), transparent 96%) 5px
    ),
    radial-gradient(
      circle,
      color-mix(in srgb, var(--bone), transparent 91%) 0 1px,
      transparent 1.4px
    );
  background-size:
    auto,
    9px 9px;
  mix-blend-mode: soft-light;
}
.panel b {
  font: 700 12px var(--display);
  text-transform: uppercase;
}
.panel p {
  margin: 8px 0 0;
  color: var(--dust);
  font-size: 12px;
}
.steps {
  display: flex;
  gap: 4px;
  margin-bottom: 14px;
}
.step {
  flex: 1;
  padding: 7px;
  border-bottom: 2px solid var(--grid);
  color: var(--dust);
  font: 12px var(--mono);
}
.step.active {
  border-color: var(--teal);
  color: var(--teal);
  background: linear-gradient(0deg, color-mix(in srgb, var(--teal), transparent 88%), transparent);
}
.formlines {
  display: grid;
  gap: 9px;
}
.formline {
  height: 34px;
  border: 1px solid var(--grid);
  background: linear-gradient(
    90deg,
    var(--alloy),
    color-mix(in srgb, var(--alloy), var(--teal) 5%)
  );
}
.mobile-wrap {
  display: grid;
  place-items: center;
  min-height: 300px;
}
.phone {
  width: 190px;
  min-height: 310px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--teal), transparent 35%);
  border-radius: 18px;
  background: linear-gradient(
    160deg,
    var(--orbit),
    color-mix(in srgb, var(--orbit), var(--teal) 8%)
  );
  box-shadow:
    0 24px 60px color-mix(in srgb, var(--orbit), transparent 25%),
    0 0 0 5px color-mix(in srgb, var(--teal), transparent 94%);
}
.phone-top {
  display: flex;
  justify-content: space-between;
  padding: 12px;
  border-bottom: 1px solid color-mix(in srgb, var(--teal), transparent 55%);
  font: 12px var(--mono);
}
.phone-body {
  padding: 14px;
}
.phone-body h4 {
  margin: 8px 0 5px;
  font: 700 28px/0.9 var(--display);
  text-transform: uppercase;
}
.phone-body p {
  color: var(--dust);
  font-size: 12px;
}
.phone-card {
  margin-top: 12px;
  padding: 12px;
  border: 1px solid var(--grid);
  border-left: 3px solid var(--gold);
  background: var(--slate);
}
.deep-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 8px;
}
.log {
  min-height: 190px;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--signal), transparent 50%);
  background:
    radial-gradient(
      circle at 80% 20%,
      color-mix(in srgb, var(--signal), transparent 90%),
      transparent 12rem
    ),
    var(--orbit);
  color: var(--signal);
  font: 12px/1.7 var(--mono);
}
.return-link {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--teal);
  font: 12px var(--mono);
  text-transform: uppercase;
}
.controls {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  counter-reset: ctl;
}
.control-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  counter-increment: ctl;
  padding: 18px;
  background: linear-gradient(
    145deg,
    var(--slate),
    color-mix(in srgb, var(--slate), var(--teal) 4%)
  );
  border: 1px solid var(--grid);
  border-top-color: color-mix(in srgb, var(--teal), transparent 32%);
}
.control-card > * {
  position: relative;
  z-index: 1;
}
.control-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.22;
  background:
    repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.3) 0 1px, transparent 1px 3px),
    radial-gradient(
      circle,
      color-mix(in srgb, var(--bone), transparent 90%) 0 1px,
      transparent 1.4px
    );
  background-size:
    auto,
    9px 9px;
  background-blend-mode: multiply, normal;
}
.segmented span,
.tabs-demo span {
  cursor: pointer;
}
.control-card::after {
  content: "";
  position: absolute;
  inset: 7px;
  z-index: 0;
  pointer-events: none;
  opacity: 0.4;
  background:
    linear-gradient(var(--teal), var(--teal)) 0 0/15px 1px no-repeat,
    linear-gradient(var(--teal), var(--teal)) 0 0/1px 15px no-repeat,
    linear-gradient(var(--teal), var(--teal)) 100% 0/15px 1px no-repeat,
    linear-gradient(var(--teal), var(--teal)) 100% 0/1px 15px no-repeat,
    linear-gradient(var(--teal), var(--teal)) 0 100%/15px 1px no-repeat,
    linear-gradient(var(--teal), var(--teal)) 0 100%/1px 15px no-repeat,
    linear-gradient(var(--teal), var(--teal)) 100% 100%/15px 1px no-repeat,
    linear-gradient(var(--teal), var(--teal)) 100% 100%/1px 15px no-repeat;
}
.control-card label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--dust);
  font: 12px var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.control-card label::after {
  content: "C·0" counter(ctl);
  color: var(--gold);
  opacity: 0.8;
  letter-spacing: 0.04em;
}
.btn,
.field,
.select {
  min-height: 44px;
  width: 100%;
  border: 1px solid var(--grid);
  border-radius: 3px;
}
.btn {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  cursor: pointer;
  background: var(--orange);
  color: var(--orbit);
  border-color: var(--orange);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.btn:not(.secondary):not(.danger)::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  opacity: 0.13;
  background: repeating-linear-gradient(0deg, transparent 0 2px, rgba(0, 0, 0, 0.5) 2px 3px);
}
@keyframes oa-scan {
  to {
    background-position: 0 -3px;
  }
}
.btn:not(.secondary):not(.danger):hover::after,
.btn:not(.secondary):not(.danger):focus-visible::after {
  animation: oa-scan 0.5s linear infinite;
  opacity: 0.34;
}
.btn.secondary {
  background: transparent;
  color: var(--bone);
  border-color: var(--dust);
}
.btn.danger {
  background: color-mix(in srgb, var(--fault), transparent 86%);
  color: var(--fault);
  border-color: color-mix(in srgb, var(--fault), transparent 46%);
}
.btn.danger:hover,
.btn.danger:focus-visible {
  background: color-mix(in srgb, var(--fault), transparent 78%);
}
.field,
.select {
  padding: 0 12px;
  background: var(--alloy);
  color: var(--bone);
}
.status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.chip,
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 4px 8px;
  border: 1px solid var(--grid);
  border-radius: 999px;
  font: 12px var(--mono);
  text-transform: uppercase;
}
.chip::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-right: 6px;
  border-radius: 50%;
  background: currentColor;
}
.chip.ok {
  color: var(--signal);
}
.chip.warn {
  color: var(--rust);
}
.chip.bad {
  color: var(--fault);
}
.segmented {
  display: flex;
  border: 1px solid var(--grid);
  border-radius: 3px;
  overflow: hidden;
}
.segmented span {
  flex: 1;
  padding: 11px 6px;
  text-align: center;
  color: var(--dust);
  font: 12px var(--mono);
  text-transform: uppercase;
  border-right: 1px solid var(--grid);
}
.segmented span:last-child {
  border-right: 0;
}
.segmented span.active {
  color: var(--orbit);
  background: var(--teal);
}
.slider-demo {
  margin-top: 22px;
}
.slider-track {
  position: relative;
  height: 2px;
  background: var(--grid);
}
.slider-track i {
  position: absolute;
  inset: 0 36% 0 0;
  background: var(--teal);
}
.slider-track b {
  position: absolute;
  left: 64%;
  top: 50%;
  width: 14px;
  height: 14px;
  margin: -7px 0 0 -7px;
  border: 1px solid var(--teal);
  border-radius: 50%;
  background: var(--orbit);
  box-shadow: 0 0 14px color-mix(in srgb, var(--teal), transparent 55%);
}
.slider-demo .val {
  display: block;
  margin-top: 16px;
  color: var(--teal);
  font: 12px var(--mono);
  text-transform: uppercase;
}
.tabs-demo {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--grid);
}
.tabs-demo span {
  padding: 11px 10px;
  color: var(--dust);
  font: 12px var(--mono);
  text-transform: uppercase;
}
.tabs-demo span.active {
  color: var(--teal);
  box-shadow: inset 0 -2px var(--teal);
}
.readout {
  display: grid;
  gap: 7px;
  color: var(--dust);
  font: 12px/1.5 var(--mono);
  text-transform: uppercase;
}
.readout div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.readout b {
  color: var(--teal);
  font-weight: 400;
}
.readout .nominal {
  color: var(--signal);
}
.asset-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 20px;
}
.schematic {
  min-height: 430px;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--orbit);
  border: 1px solid var(--grid);
}
.schematic::before,
.schematic::after {
  content: "";
  position: absolute;
  border: 1px solid var(--grid);
  border-radius: 50%;
}
.schematic::before {
  width: 310px;
  height: 310px;
}
.schematic::after {
  width: 190px;
  height: 190px;
}
.schematic svg {
  width: 86px;
  height: 86px;
  color: var(--teal);
}
.asset-notes {
  display: grid;
  gap: 12px;
}
.note {
  padding: 18px;
  background: var(--slate);
  border-left: 3px solid var(--gold);
}
.note strong {
  font: 700 20px var(--display);
  text-transform: uppercase;
}
.note p {
  margin: 5px 0 0;
  color: var(--dust);
  font-size: 13px;
}
.icon-tools {
  position: sticky;
  top: 64px;
  z-index: 100;
  display: grid;
  grid-template-columns: 1fr 220px auto;
  gap: 10px;
  padding: 12px;
  margin-bottom: 14px;
  background: color-mix(in srgb, var(--graphite), transparent 5%);
  border: 1px solid var(--grid);
  backdrop-filter: blur(12px);
}
.icon-tools input,
.icon-tools select {
  min-height: 42px;
  padding: 0 12px;
  color: var(--bone);
  background: var(--alloy);
  border: 1px solid var(--grid);
  border-radius: 3px;
}
.icon-count {
  align-self: center;
  color: var(--dust);
  font: 12px var(--mono);
  text-transform: uppercase;
  white-space: nowrap;
}
.icons {
  grid-template-columns: repeat(8, 1fr);
}
.icon-card {
  min-height: 145px;
  padding: 14px;
  background: var(--slate);
}
.icon-card[hidden] {
  display: none;
}
.icon-graphic {
  display: grid;
  place-items: center;
  min-height: 58px;
  color: var(--bone);
}
.icon-card code {
  display: block;
  color: var(--teal);
  font: 12px var(--mono);
}
.icon-card span {
  display: block;
  margin-top: 5px;
  color: var(--dust);
  font-size: 12px;
  line-height: 1.4;
}
.table-wrap {
  overflow: auto;
  border: 1px solid var(--grid);
}
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--slate);
  font-size: 12px;
}
th,
td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--grid);
  vertical-align: top;
}
th {
  color: var(--bone);
}
td {
  color: var(--dust);
}
td code {
  color: var(--teal);
  font: 12px var(--mono);
}
.pill {
  min-height: 22px;
  margin: 2px 2px 2px 0;
  color: var(--dust);
}
footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 30px clamp(20px, 5vw, 72px);
  color: var(--dust);
  background: var(--orbit);
  font: 12px var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.btn.danger,
.chip.bad {
  color: color-mix(in srgb, var(--fault), var(--bone) 20%);
}
.chip.warn {
  color: color-mix(in srgb, var(--rust), var(--bone) 25%);
}
:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}
/* v1.8.0 application atlas */
.application-atlas {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px;
}
.application-card {
  position: relative;
  isolation: isolate;
  grid-column: span 6;
  min-height: 390px;
  overflow: hidden;
  border: 1px solid var(--grid);
  border-top: 2px solid var(--teal);
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--slate), transparent 2%),
    color-mix(in srgb, var(--graphite), var(--teal) 4%)
  );
  box-shadow: 0 22px 60px color-mix(in srgb, var(--orbit), transparent 54%);
  color: inherit;
  text-decoration: none;
  transition:
    transform 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}
.application-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.2;
  background:
    repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.28) 0 1px, transparent 1px 3px),
    radial-gradient(
      circle,
      color-mix(in srgb, var(--bone), transparent 90%) 0 1px,
      transparent 1.4px
    );
  background-size:
    auto,
    9px 9px;
  background-blend-mode: multiply, normal;
}
.application-card::after {
  content: "";
  position: absolute;
  inset: 9px;
  z-index: 3;
  pointer-events: none;
  opacity: 0.5;
  background:
    linear-gradient(var(--teal), var(--teal)) 0 0/22px 1px no-repeat,
    linear-gradient(var(--teal), var(--teal)) 0 0/1px 22px no-repeat,
    linear-gradient(var(--teal), var(--teal)) 100% 0/22px 1px no-repeat,
    linear-gradient(var(--teal), var(--teal)) 100% 0/1px 22px no-repeat;
}
.application-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--teal), var(--bone) 12%);
  box-shadow: 0 30px 78px color-mix(in srgb, var(--orbit), transparent 38%);
}
.application-card:focus-visible {
  outline: 2px solid var(--bone);
  outline-offset: 3px;
}
.application-card.span-4 {
  grid-column: span 4;
}
.application-card.span-5 {
  grid-column: span 5;
}
.application-card.span-7 {
  grid-column: span 7;
}
.application-card.span-8 {
  grid-column: span 8;
}
.application-card.span-12 {
  grid-column: span 12;
}
.application-card.signal {
  border-top-color: var(--orange);
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--orbit), transparent 1%),
    color-mix(in srgb, var(--orbit), var(--orange) 4%)
  );
}
.application-card.systems {
  border-top-color: var(--signal);
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--orbit), transparent 1%),
    color-mix(in srgb, var(--orbit), var(--signal) 3%)
  );
}
.application-card__head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 20px 22px 17px;
  border-bottom: 1px solid color-mix(in srgb, var(--grid), transparent 12%);
  background: linear-gradient(
    120deg,
    color-mix(in srgb, var(--teal), transparent 91%),
    transparent 62%
  );
}
.application-card.signal .application-card__head {
  background: linear-gradient(
    120deg,
    color-mix(in srgb, var(--orange), transparent 92%),
    transparent 62%
  );
}
.application-card__head h3 {
  margin: 0;
  font: 700 27px/1 var(--display);
  text-transform: uppercase;
}
.application-card__head code {
  color: var(--teal);
  font: 12px var(--mono);
}
.application-card.signal .application-card__head code {
  color: var(--orange);
}
.application-card__head p {
  grid-column: 1/-1;
  max-width: 680px;
  margin: 0;
  color: var(--dust);
  font-size: 12px;
}
.application-preview {
  position: relative;
  height: 278px;
  padding: 12px;
  background:
    radial-gradient(
      circle at 82% 18%,
      color-mix(in srgb, var(--teal), transparent 86%),
      transparent 16rem
    ),
    linear-gradient(color-mix(in srgb, var(--teal), transparent 95%) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--teal), transparent 95%) 1px, transparent 1px),
    var(--orbit);
  background-size:
    auto,
    24px 24px,
    24px 24px,
    auto;
}
.application-card.signal .application-preview {
  background:
    radial-gradient(
      circle at 82% 18%,
      color-mix(in srgb, var(--orange), transparent 90%),
      transparent 18rem
    ),
    linear-gradient(color-mix(in srgb, var(--teal), transparent 95%) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--teal), transparent 95%) 1px, transparent 1px),
    var(--orbit);
  background-size:
    auto,
    24px 24px,
    24px 24px,
    auto;
}
.application-preview svg {
  width: 100%;
  height: 100%;
}
.application-card.span-12 .application-preview {
  height: 320px;
}
.atlas-launch {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 18px;
  padding: 19px 21px;
  border: 1px solid color-mix(in srgb, var(--gold), transparent 42%);
  background: linear-gradient(
    100deg,
    color-mix(in srgb, var(--gold), transparent 93%),
    transparent
  );
  text-decoration: none;
}
.atlas-launch strong {
  font: 700 22px var(--display);
  text-transform: uppercase;
}
.atlas-launch span {
  color: var(--gold);
  font: 12px var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
@media (max-width: 1100px) {
  .icons {
    grid-template-columns: repeat(6, 1fr);
  }
  .palette {
    grid-template-columns: repeat(3, 1fr);
  }
  .controls {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 800px) {
  .topbar {
    flex-wrap: wrap;
    gap: 6px;
  }
  .topbar nav {
    width: 100%;
    margin-left: 0;
    scrollbar-width: none;
    overscroll-behavior-inline: contain;
    mask-image: linear-gradient(
      to right,
      var(--orbit) 0,
      var(--orbit) calc(100% - 24px),
      transparent
    );
  }
  .topbar nav::-webkit-scrollbar {
    display: none;
  }
  .asset-grid,
  .type-grid {
    grid-template-columns: 1fr;
  }
  .principles,
  .depths,
  .anatomy,
  .palette,
  .examples {
    grid-template-columns: repeat(2, 1fr);
  }
  .icons {
    grid-template-columns: repeat(4, 1fr);
  }
  .icon-tools {
    grid-template-columns: 1fr 1fr;
  }
  .icon-count {
    grid-column: 1/-1;
  }
}
@media (max-width: 520px) {
  html,
  body {
    max-width: 100%;
    overflow-x: hidden;
  }
  .principles,
  .depths,
  .anatomy,
  .palette,
  .severity,
  .controls,
  .examples {
    grid-template-columns: 1fr;
  }
  .section-head {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 8px;
  }
  .section-head h2 {
    font-size: 27px;
  }
  .icons {
    grid-template-columns: repeat(2, 1fr);
  }
  .frame {
    inset: 6px;
  }
  .metrics {
    grid-template-columns: 1fr;
  }
  .workgrid,
  .deep-grid,
  .mockhero {
    grid-template-columns: 1fr;
  }
  .type-card {
    min-width: 0;
    overflow: hidden;
  }
  .display-sample {
    font-size: clamp(44px, 15vw, 62px);
  }
  .icon-tools > * {
    min-width: 0;
  }
  footer {
    flex-direction: column;
  }
}
@media (max-width: 900px) {
  .application-card,
  .application-card.span-4,
  .application-card.span-5,
  .application-card.span-7,
  .application-card.span-8 {
    grid-column: span 6;
  }
  .application-card.span-12 {
    grid-column: span 12;
  }
}
@media (max-width: 620px) {
  .application-card,
  .application-card.span-4,
  .application-card.span-5,
  .application-card.span-7,
  .application-card.span-8,
  .application-card.span-12 {
    grid-column: 1/-1;
    min-height: 0;
  }
  .application-preview,
  .application-card.span-12 .application-preview {
    height: 240px;
  }
  .application-card__head {
    padding: 18px;
  }
  .atlas-launch {
    align-items: flex-start;
    flex-direction: column;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ======== LATE TREATMENTS (folded in from former post-</html> blocks) ======== */
.section-head h2 {
  text-shadow: 0 0 26px color-mix(in srgb, var(--teal), transparent 85%);
}
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .section-head h2 {
    background-image: repeating-linear-gradient(
      0deg,
      var(--bone) 0 2px,
      color-mix(in srgb, var(--bone), transparent 52%) 2px 4px
    );
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}

.btn {
  font-size: 14px;
}
.btn:not(.secondary):not(.danger)::after {
  animation: oa-scan 2.4s linear infinite;
  opacity: 0.18;
}

.btn:not(.secondary):not(.danger)::after {
  animation: none;
  opacity: 0;
}
.btn:not(.secondary):not(.danger):hover::after {
  animation: oa-scan 0.5s linear infinite;
  opacity: 0.28;
}

/* ======== SIGNAL HERO — demonstrative, namespaced under .oa-signal ======== */
.oa-signal {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 44px;
  align-items: center;
  padding: clamp(40px, 6vw, 92px) clamp(22px, 5vw, 72px);
  border-bottom: 1px solid var(--grid);
  background:
    linear-gradient(color-mix(in srgb, var(--teal), transparent 93%) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--teal), transparent 93%) 1px, transparent 1px),
    var(--orbit);
  background-size:
    28px 28px,
    28px 28px,
    auto;
}
.oa-signal .oa-arcs {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.oa-signal::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.28;
  background: repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.22) 0 1px, transparent 1px 3px);
  mix-blend-mode: multiply;
}
.oa-signal .eyebrow {
  display: flex;
  align-items: center;
  margin: 0 0 18px;
  color: var(--teal);
  font: 12px var(--mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.oa-signal .eyebrow .cur {
  display: inline-block;
  width: 0.5em;
  height: 1em;
  margin-left: 0.35em;
  background: var(--teal);
  animation: oa-blink 1.05s steps(1) infinite;
}
@keyframes oa-blink {
  50% {
    opacity: 0;
  }
}
.oa-signal h1 {
  max-width: none;
  margin: 0 0 20px;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(46px, 7vw, 92px);
  line-height: 0.9;
  letter-spacing: 0.005em;
  text-transform: uppercase;
  text-wrap: balance;
}
.oa-signal h1 .px {
  color: var(--orange);
}
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .oa-signal h1 .px {
    color: transparent;
    background-image: repeating-linear-gradient(
      0deg,
      var(--orange) 0 2px,
      color-mix(in srgb, var(--orange), transparent 55%) 2px 4px
    );
    -webkit-background-clip: text;
    background-clip: text;
  }
}
.oa-signal .lede {
  max-width: 54ch;
  margin: 0 0 28px;
  color: var(--dust);
  font-size: 16px;
}
.oa-signal .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}
.oa-signal .badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.oa-signal .badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  border: 1px solid var(--c);
  color: var(--c);
  font-family: var(--pix);
  font-size: 12px;
  letter-spacing: 0.02em;
}
.oa-signal .badge.t {
  --c: var(--teal);
}
.oa-signal .badge.o {
  --c: var(--orange);
}
.oa-signal .badge.g {
  --c: var(--gold);
}
.oa-signal .badge.s {
  --c: var(--signal);
}
.oa-signal .figure {
  position: relative;
  width: 100%;
  max-width: 420px;
  margin-inline: auto;
}
.oa-signal .figure svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}
.oa-signal .readnote {
  position: relative;
  max-width: 236px;
  margin: 16px 0 0 auto;
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--grid), transparent 30%);
  background: color-mix(in srgb, var(--orbit), transparent 6%);
  color: var(--dust);
  font: 12px/1.85 var(--mono);
  text-transform: uppercase;
}
.oa-signal .readnote div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
}
.oa-signal .readnote b {
  color: var(--gold);
}
.oa-signal .btn {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  background: var(--alloy);
  color: var(--bone);
  font: 700 14px var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
}
.oa-signal .btn.pri {
  background: var(--orange);
  color: var(--ink);
  box-shadow: 0 0 26px color-mix(in srgb, var(--orange), transparent 60%);
}
.oa-signal .btn.pri::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, transparent 0 2px, rgba(0, 0, 0, 0.5) 2px 3px);
}
.oa-signal .btn.pri:hover::after {
  opacity: 0.28;
  animation: oa-scan 0.5s linear infinite;
}
.oa-signal .btn.gho {
  background: none;
  border-color: color-mix(in srgb, var(--teal), transparent 55%);
  color: var(--teal);
}
.oa-signal .btn.gho:hover {
  background: color-mix(in srgb, var(--teal), transparent 88%);
}
@media (max-width: 860px) {
  .oa-signal {
    grid-template-columns: 1fr;
  }
  .oa-signal .figure {
    max-width: 300px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .oa-signal .eyebrow .cur,
  .oa-signal .btn.pri:hover::after {
    animation: none;
  }
}

/* ======== SYSTEM IN USE — application surface, namespaced under .oa-surface ======== */
.oa-surface {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--grid);
  background: var(--slate);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.7);
}
.oa-surface::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.32;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.26) 0 1px, transparent 1px 3px);
  mix-blend-mode: multiply;
}
.oa-surface .appbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--grid);
  background: var(--orbit);
}
.oa-surface .appbar strong {
  font-family: var(--display);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.oa-surface .appbar .tab {
  padding: 4px 2px;
  color: var(--dust);
  font: 11px var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}
.oa-surface .appbar .tab.on {
  color: var(--teal);
  box-shadow: inset 0 -2px var(--teal);
}
.oa-surface .appbar .btn {
  display: inline-flex;
  flex: none;
  align-items: center;
  justify-content: center;
  width: max-content;
  margin-left: auto;
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid transparent;
  background: var(--orange);
  color: var(--ink);
  font: 700 12px var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}
.oa-surface .work {
  padding: 20px;
}
.oa-surface .tiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}
.oa-surface .tile {
  position: relative;
  padding: 18px;
  border: 1px solid color-mix(in srgb, var(--grid), transparent 40%);
  background: color-mix(in srgb, var(--slate), var(--orbit) 14%);
  --ac: var(--teal);
}
.oa-surface .tile:nth-child(2) {
  --ac: var(--gold);
}
.oa-surface .tile:nth-child(3) {
  --ac: var(--signal);
}
.oa-surface .tile::before,
.oa-surface .tile::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid var(--ac);
}
.oa-surface .tile::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}
.oa-surface .tile::after {
  bottom: -1px;
  right: -1px;
  border-left: 0;
  border-top: 0;
}
.oa-surface .tile .v {
  font-family: var(--display);
  font-weight: 700;
  font-size: 40px;
  line-height: 1;
  color: var(--bone);
  text-shadow: 0 0 14px color-mix(in srgb, var(--ac), transparent 60%);
}
.oa-surface .tile .k {
  margin-top: 8px;
  color: var(--dust);
  font: 11px var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.oa-surface .tile .s {
  margin-top: 6px;
  color: var(--ac);
  font-size: 12px;
}
.oa-surface .tbl-wrap {
  overflow-x: auto;
  border: 1px solid color-mix(in srgb, var(--grid), transparent 40%);
}
.oa-surface table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.oa-surface table.data th,
.oa-surface table.data td {
  padding: 11px 12px;
  text-align: left;
  border-bottom: 1px solid color-mix(in srgb, var(--grid), transparent 40%);
}
.oa-surface table.data th {
  color: var(--dust);
  background: var(--orbit);
  font: 10px var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.oa-surface table.data tr[aria-selected="true"] {
  box-shadow: inset 3px 0 var(--teal);
  background: color-mix(in srgb, var(--teal), transparent 90%);
}
.oa-surface table.data td code {
  color: var(--teal);
  font: 11px var(--mono);
}
.oa-surface .status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 9px;
  border: 1px solid var(--c);
  color: var(--c);
  font: 11px var(--pix);
  letter-spacing: 0.02em;
}
.oa-surface .status.ok {
  --c: var(--signal);
}
.oa-surface .status.pr {
  --c: var(--gold);
}
.oa-surface .status.at {
  --c: var(--orange);
}
@media (max-width: 860px) {
  .oa-surface .tiles {
    grid-template-columns: 1fr;
  }
}

/* ======== COLOR & SEVERITY — reference-grade, namespaced under .oa-color ======== */
.oa-color .palette {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.oa-color .swatch-card {
  border: 1px solid color-mix(in srgb, var(--grid), transparent 40%);
  background: var(--slate);
}
.oa-color .swatch {
  position: relative;
  height: 96px;
  overflow: hidden;
  background: var(--sw);
}
.oa-color .swatch::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background:
    linear-gradient(color-mix(in srgb, var(--orbit), transparent 45%) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--orbit), transparent 45%) 1px, transparent 1px);
  background-size:
    16px 16px,
    16px 16px;
  mix-blend-mode: soft-light;
}
.oa-color .swatch-copy {
  padding: 14px;
}
.oa-color .swatch-copy .top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
}
.oa-color .swatch-copy strong {
  font: 700 18px var(--display);
  text-transform: uppercase;
}
.oa-color .swatch-copy code {
  color: var(--dust);
  font: 12px var(--mono);
}
.oa-color .swatch-copy .tok {
  display: block;
  margin-top: 6px;
  color: var(--teal);
  font: 10px var(--mono);
  letter-spacing: 0.02em;
  word-break: break-all;
}
.oa-color .swatch-copy .role {
  display: block;
  margin-top: 6px;
  color: var(--dust);
  font-size: 12px;
  line-height: 1.45;
}
.oa-color .sev-head {
  margin: 26px 0 12px;
  color: var(--dust);
  font: 11px var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.oa-color .severity {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.oa-color .severity div {
  padding: 15px;
  color: var(--ink);
}
.oa-color .severity strong {
  display: block;
  font: 700 13px var(--sans);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.oa-color .severity span {
  display: block;
  margin-top: 5px;
  font: 10px var(--mono);
  letter-spacing: 0.02em;
  opacity: 0.85;
}
.oa-color .severity .info {
  background: var(--teal);
}
.oa-color .severity .success {
  background: var(--signal);
}
.oa-color .severity .warning {
  background: var(--rust);
}
.oa-color .severity .error {
  background: var(--fault);
}
@media (max-width: 860px) {
  .oa-color .palette {
    grid-template-columns: repeat(2, 1fr);
  }
  .oa-color .severity {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ======== COMPONENT DOC — reference-grade, namespaced under .oa-comp ======== */
.oa-comp .comp {
  border: 1px solid color-mix(in srgb, var(--grid), transparent 40%);
  background: color-mix(in srgb, var(--slate), var(--orbit) 22%);
}
.oa-comp .comp-head {
  padding: 20px 22px;
  border-bottom: 1px solid color-mix(in srgb, var(--grid), transparent 40%);
}
.oa-comp .comp-head h3 {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  font-size: 26px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.oa-comp .comp-head p {
  max-width: 64ch;
  margin: 8px 0 0;
  color: var(--dust);
}
.oa-comp .comp-cap {
  margin-top: 12px;
  color: var(--dust);
  font: 11px var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.oa-comp .comp-cap code {
  color: var(--teal);
}
.oa-comp .comp-block {
  padding: 22px;
}
.oa-comp .comp-block + .comp-block {
  border-top: 1px solid color-mix(in srgb, var(--grid), transparent 40%);
}
.oa-comp .blk-label {
  display: block;
  margin-bottom: 16px;
  color: var(--dust);
  font: 10px var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.oa-comp .state-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 22px;
}
.oa-comp .state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.oa-comp .state .cap {
  color: var(--dust);
  font: 10px var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.oa-comp .btn {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: max-content;
  gap: 8px;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  background: var(--alloy);
  color: var(--bone);
  font: 700 14px var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}
.oa-comp .btn.pri,
.oa-comp .btn.hoverlook {
  background: var(--orange);
  color: var(--ink);
  box-shadow: 0 0 26px color-mix(in srgb, var(--orange), transparent 55%);
}
.oa-comp .btn.hoverlook::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.28;
  background: repeating-linear-gradient(0deg, transparent 0 2px, rgba(0, 0, 0, 0.5) 2px 3px);
}
.oa-comp .btn.sec {
  background: var(--alloy);
  border-color: var(--grid);
  color: var(--bone);
}
.oa-comp .btn.gho {
  background: none;
  border-color: color-mix(in srgb, var(--teal), transparent 55%);
  color: var(--teal);
}
.oa-comp .btn.dis {
  background: var(--slate);
  border-color: color-mix(in srgb, var(--grid), transparent 40%);
  color: var(--grid);
  box-shadow: none;
  cursor: not-allowed;
}
.oa-comp .usage {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
  align-items: start;
}
.oa-comp .code {
  margin: 0;
  overflow-x: auto;
  border: 1px solid color-mix(in srgb, var(--grid), transparent 40%);
  background: color-mix(in srgb, var(--orbit), #000 40%);
}
.oa-comp .code-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-bottom: 1px solid color-mix(in srgb, var(--grid), transparent 55%);
  background: var(--orbit);
  color: var(--dust);
  font: 10px var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.oa-comp .code-bar .dot {
  width: 9px;
  height: 9px;
  border: 1px solid var(--grid);
}
.oa-comp .code-bar .dot.o {
  border-color: var(--orange);
  background: var(--orange);
}
.oa-comp .code pre {
  margin: 0;
  padding: 16px 18px;
  color: var(--bone);
  font: 13px/1.7 var(--mono);
  white-space: pre;
}
.oa-comp .code .p {
  color: var(--teal);
}
.oa-comp .code .a {
  color: var(--gold);
}
.oa-comp .code .s {
  color: var(--signal);
}
.oa-comp .code .c {
  color: var(--dust);
  opacity: 0.75;
}
.oa-comp .code .tk {
  color: var(--orange);
}
.oa-comp .consumes {
  padding: 16px 18px;
  border: 1px solid color-mix(in srgb, var(--grid), transparent 40%);
  background: var(--orbit);
}
.oa-comp .consumes h4 {
  margin: 0 0 12px;
  color: var(--dust);
  font: 10px var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.oa-comp .consumes ul {
  margin: 0;
  padding: 0;
  list-style: none;
  font: 12px/1.5 var(--mono);
}
.oa-comp .consumes li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px solid color-mix(in srgb, var(--grid), transparent 55%);
}
.oa-comp .consumes li:last-child {
  border-bottom: 0;
}
.oa-comp .consumes .tok {
  color: var(--teal);
}
.oa-comp .consumes .role {
  color: var(--dust);
  text-align: right;
}
.oa-comp .dodont {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.oa-comp .guide-panel {
  padding: 16px 18px;
  border: 1px solid var(--c);
  border-left-width: 3px;
  background: color-mix(in srgb, var(--c), transparent 93%);
}
.oa-comp .guide-panel.do {
  --c: var(--signal);
}
.oa-comp .guide-panel.dont {
  --c: var(--fault);
}
.oa-comp .guide-panel h4 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  color: var(--c);
  font: 700 12px var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.oa-comp .guide-panel p {
  margin: 0;
  color: var(--bone);
  font-size: 14px;
}
.oa-comp .guide-panel .demo {
  margin-bottom: 12px;
}
.oa-comp .comp {
  margin-bottom: 26px;
}
@media (max-width: 960px) {
  .oa-comp .usage {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 860px) {
  .oa-comp .dodont {
    grid-template-columns: 1fr;
  }
}

/* ==== COMPONENT DOC — form + status control demos (namespaced under .oa-comp) ==== */
/* Input / text field */
.oa-comp .fld {
  width: 172px;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--grid);
  background: var(--slate);
  color: var(--bone);
  font: 13px var(--mono);
}
.oa-comp .fld::placeholder {
  color: var(--dust);
  opacity: 0.7;
}
.oa-comp .fld:hover:not(:disabled):not([readonly]),
.oa-comp .fld.is-hover {
  border-color: var(--dust);
}
.oa-comp .fld:focus,
.oa-comp .fld.is-focus {
  border-color: var(--teal);
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--teal), transparent 72%);
}
.oa-comp .fld.is-invalid {
  border-color: var(--fault);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--fault), transparent 78%);
}
.oa-comp .fld:disabled {
  border-color: color-mix(in srgb, var(--grid), transparent 45%);
  color: var(--grid);
  cursor: not-allowed;
}
.oa-comp .fld[readonly] {
  border-style: dashed;
  background: color-mix(in srgb, var(--slate), var(--orbit) 45%);
  color: var(--dust);
}
/* Select */
.oa-comp .sel-wrap {
  position: relative;
  display: inline-block;
}
.oa-comp .sel-wrap::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 13px;
  width: 7px;
  height: 7px;
  margin-top: -5px;
  border-right: 1.5px solid var(--dust);
  border-bottom: 1.5px solid var(--dust);
  transform: rotate(45deg);
  pointer-events: none;
}
.oa-comp .sel {
  appearance: none;
  width: 172px;
  min-height: 44px;
  padding: 0 34px 0 12px;
  border: 1px solid var(--grid);
  background: var(--slate);
  color: var(--bone);
  font: 13px var(--mono);
}
.oa-comp .sel:hover,
.oa-comp .sel.is-hover {
  border-color: var(--dust);
}
.oa-comp .sel:focus,
.oa-comp .sel.is-focus {
  border-color: var(--teal);
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--teal), transparent 72%);
}
.oa-comp .sel.is-selected {
  border-color: color-mix(in srgb, var(--teal), transparent 42%);
}
.oa-comp .sel.is-invalid {
  border-color: var(--fault);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--fault), transparent 78%);
}
.oa-comp .sel:disabled {
  border-color: color-mix(in srgb, var(--grid), transparent 45%);
  color: var(--grid);
  cursor: not-allowed;
}
/* Toggle — static state replicas (interactive on/off reuse .oa-toggle) */
.oa-comp .tgl {
  display: inline-block;
  width: 50px;
  height: 28px;
  padding: 3px;
  border-radius: 20px;
  background: var(--grid);
}
.oa-comp .tgl > i {
  display: block;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bone);
}
.oa-comp .tgl.on {
  background: var(--teal);
}
.oa-comp .tgl.on > i {
  margin-left: 22px;
}
.oa-comp .tgl.is-hover {
  background: color-mix(in srgb, var(--grid), var(--bone) 16%);
}
.oa-comp .tgl.is-focus {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--teal), transparent 70%);
}
.oa-comp .tgl.is-disabled {
  opacity: 0.4;
}
/* Status chip severities */
.oa-comp .chip.neutral,
.oa-comp .chip.info,
.oa-comp .chip.success,
.oa-comp .chip.warning,
.oa-comp .chip.error,
.oa-comp .chip.standby {
  background: none;
}
.oa-comp .chip.neutral {
  color: var(--dust);
}
.oa-comp .chip.info {
  color: var(--teal);
}
.oa-comp .chip.success {
  color: var(--signal);
}
.oa-comp .chip.warning {
  color: var(--rust);
}
.oa-comp .chip.error {
  color: var(--fault);
}
.oa-comp .chip.standby {
  color: var(--gold);
}
/* Segmented + tabs live demos inside comp blocks */
.oa-comp .segmented {
  width: min(360px, 100%);
}
.oa-comp .tabs-demo span:hover:not(.active):not(.dis) {
  color: var(--bone);
}
.oa-comp .tabs-demo span.dis {
  color: var(--grid);
  cursor: not-allowed;
  pointer-events: none;
}