/* d3vices.com — "Instrument" design system.
   The product is a rack of instruments, so the interface is the bench:
   hairline grid, mono readouts, sharp corners, one signal colour.
   Dark by default; a stored preference wins over the system setting. */

:root {
  --bg: #08090c;
  --panel: #0b0e13;
  --raised: #0e1319;
  --grid: #10151c;
  --line: #1c222b;
  --line-strong: #2a323d;
  --text: #e8edf2;
  --text-mid: #a9b3c1;
  --text-dim: #8a94a3;
  --text-faint: #6d7887;
  --accent: #5ad2f4;
  --accent-deep: #2ea8cd;
  --accent-ink: #04131a;
  --signal: #ffb020;
  --danger: #ff5c5c;

  --sans: "Instrument Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --radius: 3px;
  --radius-sm: 2px;
  --key: 42px;
  --key-gap: 5px;
  --rule: 1px solid var(--line);
  --paper:
    repeating-linear-gradient(0deg, var(--grid) 0 1px, transparent 1px 29px),
    repeating-linear-gradient(90deg, var(--grid) 0 1px, transparent 1px 36px);
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #f7f8fa;
  --panel: #ffffff;
  --raised: #ffffff;
  --grid: #e8edf2;
  --line: #dbe2e9;
  --line-strong: #bcc7d3;
  --text: #0c1116;
  --text-mid: #414d5a;
  --text-dim: #55606c;
  --text-faint: #7a8593;
  --accent: #0f7091;
  --accent-deep: #0a566f;
  --accent-ink: #ffffff;
  --signal: #9a5b06;
  --danger: #c92a2a;
  color-scheme: light;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f7f8fa;
    --panel: #ffffff;
    --raised: #ffffff;
    --grid: #e8edf2;
    --line: #dbe2e9;
    --line-strong: #bcc7d3;
    --text: #0c1116;
    --text-mid: #414d5a;
    --text-dim: #55606c;
    --text-faint: #7a8593;
    --accent: #0f7091;
    --accent-deep: #0a566f;
    --accent-ink: #ffffff;
    --signal: #9a5b06;
    --danger: #c92a2a;
    color-scheme: light;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  line-height: 1.06;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-wrap: balance;
}
h1 {
  font-size: clamp(2.2rem, 5.4vw, 4.25rem);
}
h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.7rem);
}
h3 {
  font-size: 1.1rem;
}
h4 {
  font-size: 1.02rem;
  letter-spacing: -0.01em;
}
p {
  margin: 0 0 1em;
}
a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.6rem 1rem;
}
.skip-link:focus {
  left: 0;
}

/* A monospace label in small caps — the recurring device of the whole system. */
.eyebrow,
.stat-label,
.group-title,
.nav-group-label,
.card-apis,
.footer-col h3,
.progress-label,
.capability,
.badge {
  font-family: var(--mono);
}

/* ------------------------------------------------------------------ chrome */

.offline-banner {
  background: var(--signal);
  color: #1a1200;
  text-align: center;
  padding: 0.5rem 1rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg);
  border-bottom: var(--rule);
}
.header-inner {
  max-width: 1340px;
  margin: 0 auto;
  padding: 0.85rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.6rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.03em;
}
.brand:hover {
  text-decoration: none;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  flex: none;
  border: 1.5px solid var(--accent);
  border-radius: 6px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
}
.brand-name {
  font-size: 1.06rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  margin-left: auto;
  flex-wrap: wrap;
}
.nav-group {
  position: relative;
}
.nav-group-label {
  background: none;
  border: 0;
  color: var(--text-dim);
  font-family: var(--sans);
  font-size: 0.88rem;
  padding: 0.45rem 0.6rem;
  cursor: pointer;
  letter-spacing: 0;
}
.nav-group:hover .nav-group-label,
.nav-group:focus-within .nav-group-label {
  color: var(--text);
}
.nav-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  display: none;
  z-index: 50;
  background: var(--panel);
  border: var(--rule);
  padding: 0.3rem;
}
.nav-group:hover .nav-menu,
.nav-group:focus-within .nav-menu {
  display: block;
}
.nav-menu .nav-link {
  display: block;
  padding: 0.42rem 0.6rem;
  color: var(--text-mid);
  font-size: 0.9rem;
}
.nav-menu .nav-link:hover {
  background: var(--raised);
  color: var(--text);
  text-decoration: none;
}
.nav-link-plain {
  color: var(--text-dim);
  font-size: 0.88rem;
  padding: 0.45rem 0.6rem;
}
.nav-link-plain:hover {
  color: var(--text);
  text-decoration: none;
}

.theme-toggle {
  width: 30px;
  height: 30px;
  border: 1px solid var(--line-strong);
  background: none;
  cursor: pointer;
  display: grid;
  place-items: center;
  padding: 0;
  border-radius: var(--radius-sm);
}
.theme-toggle-icon {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-faint);
  box-shadow: inset -4px -3px 0 0 var(--bg);
}
:root[data-theme="light"] .theme-toggle-icon {
  box-shadow: none;
  background: var(--signal);
}
.btn-install {
  padding: 0.45rem 0.9rem;
  font-size: 0.84rem;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 36px;
  height: 32px;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px 8px;
  flex-direction: column;
  justify-content: space-between;
}
.nav-toggle span {
  display: block;
  height: 1.5px;
  background: var(--text);
}

@media (max-width: 1000px) {
  .nav-toggle {
    display: flex;
  }
  .nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-top: 0.6rem;
  }
  .nav.is-open {
    display: flex;
  }
  .header-inner {
    flex-wrap: wrap;
    padding: 0.85rem 1.1rem;
  }
  .nav-menu {
    position: static;
    display: block;
    border: 0;
    padding: 0 0 0 0.7rem;
    background: none;
  }
  .nav-group-label {
    width: 100%;
    text-align: left;
    color: var(--text);
    font-weight: 600;
  }
}

.main {
  width: 100%;
  max-width: 1340px;
  margin: 0 auto;
  padding: 0 2rem 5rem;
  flex: 1;
}
.main-wide {
  max-width: 1340px;
  padding-left: 0;
  padding-right: 0;
}

@media (max-width: 720px) {
  .main {
    padding: 0 1.1rem 3.5rem;
  }
}

.footer {
  border-top: var(--rule);
  margin-top: auto;
}
.footer-inner {
  max-width: 1340px;
  margin: 0 auto;
  padding: 3rem 2rem 1.6rem;
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}
.footer-brand {
  grid-column: span 2;
  max-width: 300px;
}
.footer-brand p {
  color: var(--text-dim);
  font-size: 0.88rem;
}
.footer-oss {
  font-size: 0.84rem;
}
.footer-col h3 {
  font-size: 0.63rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.8rem;
  font-weight: 500;
}
.footer-col a {
  display: block;
  color: var(--text-dim);
  font-size: 0.88rem;
  padding: 0.16rem 0;
}
.footer-col a:hover {
  color: var(--text);
  text-decoration: none;
}
.footer-bottom {
  max-width: 1340px;
  margin: 0 auto;
  padding: 1rem 2rem 2.5rem;
  border-top: var(--rule);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--text-faint);
}
@media (max-width: 640px) {
  .footer-inner,
  .footer-bottom {
    padding-left: 1.1rem;
    padding-right: 1.1rem;
  }
}

/* -------------------------------------------------------------------- home */

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.2rem;
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
  gap: 3.5rem;
  align-items: center;
  padding: 4.5rem 0 4rem;
}
.hero-compact {
  display: block;
  padding: 3rem 0 2rem;
}
.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.hero h1 {
  margin-bottom: 1.1rem;
}
.hero-sub {
  font-size: 1.08rem;
  line-height: 1.62;
  color: var(--text-mid);
  max-width: 48ch;
  margin-bottom: 1.7rem;
}
.hero-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

@media (max-width: 940px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding: 3rem 0 2.5rem;
  }
}

/* The scope: the hero image is a reading, not a stock illustration. */
.scope {
  border: var(--rule);
  background: var(--panel);
  overflow: hidden;
}
.scope-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1rem;
  border-bottom: var(--rule);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}
.scope-live {
  color: var(--signal);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.scope-live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
}
.scope-screen {
  background: var(--paper), var(--panel);
}
.scope-screen svg {
  display: block;
  width: 100%;
  height: auto;
}
.scope-foot {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: var(--rule);
}
.scope-foot > div {
  padding: 0.8rem 1rem;
  border-right: var(--rule);
}
.scope-foot > div:last-child {
  border-right: 0;
}

/* Measurement strip */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  border-top: var(--rule);
  border-bottom: var(--rule);
  margin: 0;
}
.hero-stats > div {
  padding: 1.5rem 1.4rem;
  border-right: var(--rule);
  margin: 0;
}
.hero-stats > div:last-child {
  border-right: 0;
}
.hero-stats dt {
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.hero-stats dd {
  margin: 0.5rem 0 0;
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.section {
  padding: 3.5rem 0 0;
}
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.4rem;
}
.section-count {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--text-faint);
}
.section-split {
  display: grid;
  gap: 3rem;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  padding-top: 3.5rem;
}

.group {
  margin-bottom: 2.2rem;
}
.group-title {
  font-size: 0.63rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.9rem;
  font-weight: 500;
}

/* A rack of instruments: hairline-separated cells, not floating cards. */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1px;
}
.card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  background: var(--panel);
  box-shadow: 0 0 0 1px var(--line);
  padding: 1.25rem 1.25rem 1.4rem;
  color: var(--text);
  transition: background 0.12s;
}
.card:hover {
  background: var(--raised);
  text-decoration: none;
}
.card h4 {
  margin: 0;
}
.card p {
  color: var(--text-dim);
  font-size: 0.88rem;
  margin: 0;
  line-height: 1.55;
}
.card-apis {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.63rem;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  text-transform: uppercase;
}
.card-static:hover {
  background: var(--panel);
}

.tick-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.85rem;
}
.tick-list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--text-dim);
  font-size: 0.95rem;
}
.tick-list li strong {
  color: var(--text);
  font-weight: 600;
}
.tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 1.5px;
  background: var(--accent);
}

.badge {
  display: inline-block;
  margin-top: 0.9rem;
  padding: 0.35rem 0.7rem;
  border: var(--rule);
  color: var(--text-faint);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.prose {
  max-width: 68ch;
  padding-top: 3rem;
}
.prose .lede {
  font-size: 1.1rem;
  color: var(--text-mid);
}
.prose h2 {
  margin-top: 2.2rem;
}

/* --------------------------------------------------------------- test page */

/* Test pages run as a rack: the instrument list stays put, the bench changes. */
.test-layout {
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr);
  align-items: start;
}
.rack-nav {
  position: sticky;
  top: 61px;
  border-right: var(--rule);
  padding: 1.6rem 0 3rem;
  align-self: start;
  max-height: calc(100dvh - 61px);
  overflow-y: auto;
}
.rack-group {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.17em;
  color: var(--text-faint);
  padding: 0 1.4rem 0.6rem;
}
.rack-nav > div + div .rack-group {
  padding-top: 1.5rem;
}
.rack-link {
  display: block;
  padding: 0.42rem 1.4rem;
  font-size: 0.9rem;
  color: var(--text-dim);
  border-left: 2px solid transparent;
}
.rack-link:hover {
  color: var(--text);
  text-decoration: none;
  background: var(--panel);
}
.rack-link.is-current {
  color: var(--text);
  font-weight: 600;
  background: var(--raised);
  border-left-color: var(--accent);
}

.test-page {
  padding: 2rem 2rem 0;
  min-width: 0;
}
.test-header {
  margin-bottom: 1.6rem;
}
.test-code {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.7rem;
}
.test-code b {
  color: var(--accent);
  font-weight: 500;
}
.test-code span {
  color: var(--text-faint);
}
.test-header h1 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  margin-bottom: 0.6rem;
}
.test-blurb {
  color: var(--text-mid);
  max-width: 66ch;
  font-size: 1rem;
}
.test-host {
  min-height: 200px;
}
.test-meta {
  margin-top: 2.5rem;
  border: var(--rule);
  border-left: 2px solid var(--accent);
  background: var(--panel);
  padding: 1.1rem 1.2rem;
}
.test-meta h2 {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 500;
  margin-bottom: 0.45rem;
}
.test-meta p {
  color: var(--text-dim);
  margin: 0;
  font-size: 0.9rem;
}
.related {
  margin-top: 2.8rem;
  padding-bottom: 1rem;
}
.related h2 {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 500;
}

@media (max-width: 1000px) {
  .test-layout {
    grid-template-columns: 1fr;
  }
  .rack-nav {
    display: none;
  }
  .test-page {
    padding: 2rem 1.1rem 0;
  }
}

/* -------------------------------------------------------------- components */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.3rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  transition:
    background 0.12s,
    border-color 0.12s,
    color 0.12s;
  white-space: nowrap;
}
.btn:hover {
  text-decoration: none;
}
.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-deep);
  color: var(--accent-ink);
}
.btn-secondary {
  background: none;
  color: var(--text);
  border-color: var(--line-strong);
}
.btn-secondary:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--text);
}
.btn-ghost {
  background: none;
  color: var(--text-dim);
  border-color: transparent;
}
.btn-ghost:hover:not(:disabled) {
  color: var(--text);
  border-color: var(--line);
}
.btn-lg {
  padding: 0.85rem 1.6rem;
  font-size: 0.98rem;
}
.btn.is-active {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  margin-bottom: 1rem;
}
.select {
  padding: 0.62rem 0.85rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--panel);
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.9rem;
  max-width: 100%;
}
.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--text-dim);
  font-size: 0.88rem;
  cursor: pointer;
}
.field {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.range {
  flex: 1;
  max-width: 460px;
  accent-color: var(--accent);
}

.status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1rem;
  margin-bottom: 1rem;
  border: var(--rule);
  background: var(--panel);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-faint);
  flex: none;
}
.status[data-state="running"] .status-dot {
  background: var(--accent);
  animation: pulse 1.1s infinite;
}
.status[data-state="ready"] .status-dot {
  background: var(--signal);
}
.status[data-state="error"] .status-dot {
  background: var(--danger);
}
.status[data-state="warn"] .status-dot,
.status[data-state="unsupported"] .status-dot {
  background: var(--signal);
}
.status[data-state="error"] {
  color: var(--danger);
  border-color: color-mix(in srgb, var(--danger) 45%, var(--line));
}
@keyframes pulse {
  50% {
    opacity: 0.3;
  }
}

.note {
  color: var(--text-dim);
  font-size: 0.86rem;
  line-height: 1.6;
  margin: 1.2rem 0 0;
  max-width: 78ch;
}
.note-error {
  color: var(--danger);
}
.note-warn {
  color: var(--signal);
}

.panel {
  border: var(--rule);
  background: var(--paper), var(--panel);
  padding: 1rem;
  margin-bottom: 1rem;
  overflow: hidden;
}
.panel-centre {
  display: grid;
  place-items: center;
  min-height: 230px;
}
.panel-video {
  padding: 0;
  background: #000;
}
.canvas {
  display: block;
  width: 100%;
}
.preview {
  display: block;
  width: 100%;
  max-height: 62vh;
  background: #000;
  object-fit: contain;
}

/* Readouts: mono, tabular, hairline-separated — one row of instruments. */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(158px, 1fr));
  gap: 1px;
  margin-bottom: 1rem;
}
.stat {
  background: var(--panel);
  box-shadow: 0 0 0 1px var(--line);
  padding: 0.75rem 0.9rem;
  min-width: 0;
}
.stat-label {
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.stat-value {
  font-family: var(--mono);
  font-size: 1.02rem;
  margin-top: 0.3rem;
  word-break: break-word;
  font-variant-numeric: tabular-nums;
}

.meter {
  position: relative;
  height: 8px;
  background: var(--grid);
  border-radius: 100px;
  overflow: hidden;
  margin-top: 0.85rem;
}
.meter-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--signal) 82%, var(--danger));
  transition: width 0.05s linear;
}
.meter-peak {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--text);
  left: 0;
}

.progress {
  height: 6px;
  background: var(--grid);
  border: var(--rule);
  overflow: hidden;
  margin-bottom: 0.5rem;
}
.progress-fill {
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width 0.25s;
}
.progress-label {
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 1rem;
}

.shots {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.shot img {
  width: 128px;
  border: var(--rule);
  display: block;
}
.playback {
  width: 100%;
  margin-bottom: 1rem;
}

/* ----------------------------------------------------------------- display */

.pattern-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(108px, 1fr));
  gap: 1px;
  background: var(--line);
  border: var(--rule);
  margin-bottom: 1rem;
}
.pattern-swatch {
  aspect-ratio: 16 / 10;
  border: 0;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  padding: 0;
}
.pattern-name {
  position: absolute;
  inset: auto 0 0 0;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  padding: 0.22rem 0.35rem;
}
.display-surface {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  cursor: none;
}
.display-surface.is-active {
  display: block;
}
.display-hint {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--mono);
  font-size: 0.85rem;
  text-align: center;
  padding: 0.8rem 1.2rem;
  transition: opacity 0.4s;
  pointer-events: none;
}

.display-list {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--rule);
  margin-bottom: 1rem;
}
.display-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.7rem 0.9rem;
  background: var(--panel);
  font-size: 0.88rem;
}
.display-row span {
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.76rem;
}

/* ---------------------------------------------------------------- keyboard */

.keyboard-wrap {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  width: max-content;
  max-width: 100%;
  overflow-x: auto;
  padding-bottom: 0.6rem;
  margin-bottom: 1rem;
}
.keyboard,
.keyboard-cluster {
  display: flex;
  flex-direction: column;
  gap: var(--key-gap);
  flex: none;
}
.keyboard-side {
  display: flex;
  gap: 1rem;
  flex: none;
}
.key-row {
  display: flex;
  gap: var(--key-gap);
  flex-wrap: nowrap;
}
.key-gap {
  height: calc(var(--key) / 2);
}
.key {
  height: var(--key);
  flex: none;
  display: grid;
  place-items: center;
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font-family: var(--mono);
  font-size: 0.66rem;
  color: var(--text-faint);
  user-select: none;
  padding: 0 2px;
  text-align: center;
  overflow: hidden;
}
.key-spacer {
  flex: none;
}
.key.is-seen {
  color: var(--text);
  border-color: var(--accent-deep);
}
.key.is-down {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.key.is-locked {
  border-color: var(--signal);
  color: var(--signal);
}
@media (max-width: 900px) {
  :root {
    --key: 34px;
  }
  .key {
    font-size: 0.58rem;
  }
}

/* ------------------------------------------------------------------- mouse */

.mouse-pad {
  position: relative;
  height: 340px;
  border: var(--rule);
  background: var(--paper), var(--panel);
  display: grid;
  place-items: center;
  margin-bottom: 1rem;
  touch-action: none;
  overflow: hidden;
}
.mouse-hint {
  position: absolute;
  bottom: 0.9rem;
  color: var(--text-faint);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}
.mouse-body {
  position: relative;
  width: 130px;
  height: 198px;
  border: 1.5px solid var(--line-strong);
  border-radius: 65px 65px 44px 44px;
  background: var(--bg);
}
.mouse-btn {
  position: absolute;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 0.56rem;
  color: var(--text-faint);
  border: 1px solid var(--line-strong);
  background: var(--panel);
}
.mouse-btn.is-seen {
  border-color: var(--accent-deep);
  color: var(--text);
}
.mouse-btn.is-down {
  background: var(--accent);
  color: var(--accent-ink);
}
.mouse-btn-left {
  top: -1px;
  left: -1px;
  width: 51px;
  height: 91px;
  border-radius: 63px 0 0 0;
}
.mouse-btn-right {
  top: -1px;
  right: -1px;
  width: 51px;
  height: 91px;
  border-radius: 0 63px 0 0;
}
.mouse-btn-middle {
  top: 26px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 40px;
  border-radius: 12px;
  z-index: 2;
}
.mouse-btn-back {
  top: 96px;
  left: -30px;
  width: 28px;
  height: 38px;
}
.mouse-btn-forward {
  top: 50px;
  left: -30px;
  width: 28px;
  height: 38px;
}
.mouse-wheel {
  position: absolute;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 32px;
  border-radius: 9px;
  background: var(--grid);
  overflow: hidden;
  z-index: 3;
  pointer-events: none;
}
.mouse-wheel-inner {
  width: 100%;
  height: 200%;
  background: repeating-linear-gradient(0deg, var(--accent) 0 3px, transparent 3px 8px);
}
.spin-up .mouse-wheel-inner {
  animation: spin-up 0.3s linear;
}
.spin-down .mouse-wheel-inner {
  animation: spin-down 0.3s linear;
}
@keyframes spin-up {
  to {
    transform: translateY(8px);
  }
}
@keyframes spin-down {
  to {
    transform: translateY(-8px);
  }
}

/* ------------------------------------------------------------------- touch */

.touch-canvas {
  background: var(--paper), var(--panel);
  cursor: crosshair;
  touch-action: none;
}

/* ----------------------------------------------------------------- gamepad */

.gamepad-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(94px, 1fr));
  gap: 1px;
  margin-bottom: 1rem;
}
.gp-btn {
  position: relative;
  height: 52px;
  background: var(--panel);
  box-shadow: 0 0 0 1px var(--line);
  overflow: hidden;
  display: grid;
  place-items: center;
}
.gp-btn.is-seen {
  box-shadow: inset 0 0 0 1px var(--accent-deep);
}
.gp-btn.is-pressed {
  box-shadow: inset 0 0 0 1px var(--accent);
}
.gp-btn-fill {
  position: absolute;
  inset: auto 0 0 0;
  height: 0;
  background: color-mix(in srgb, var(--accent) 30%, transparent);
  transition: height 0.05s;
}
.gp-btn-label {
  position: relative;
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--text-faint);
  text-align: center;
  padding: 0 4px;
  letter-spacing: 0.04em;
}
.gp-btn.is-pressed .gp-btn-label {
  color: var(--text);
}
.gamepad-axes {
  display: flex;
  gap: 1.4rem;
  flex-wrap: wrap;
}
.gp-axis-group {
  text-align: center;
}
.gp-stick {
  position: relative;
  width: 104px;
  height: 104px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--panel);
  margin: 0.4rem 0;
}
.gp-stick-cross {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(var(--line), var(--line)) center / 1px 100% no-repeat,
    linear-gradient(var(--line), var(--line)) center / 100% 1px no-repeat;
  border-radius: 50%;
}
.gp-stick-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 14px;
  margin: -7px 0 0 -7px;
  border-radius: 50%;
  background: var(--accent);
  transition: transform 0.03s linear;
}
.gp-axis-readout {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

/* -------------------------------------------------------------------- midi */

.piano {
  display: flex;
  position: relative;
  height: 128px;
  overflow-x: auto;
  background: var(--bg);
  border: var(--rule);
  padding: 0 2px;
}
.piano-key {
  flex: 0 0 auto;
}
.piano-key.is-white {
  width: 22px;
  height: 122px;
  background: #eef1f5;
  border: 1px solid #aeb8c4;
  margin-right: -1px;
}
.piano-key.is-black {
  width: 14px;
  height: 78px;
  background: #10151c;
  border: 1px solid #000;
  margin: 0 -7px;
  z-index: 2;
}
.piano-key.is-on {
  background: var(--accent);
  border-color: var(--accent-deep);
}
.midi-devices {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--rule);
  margin-bottom: 1rem;
}
.midi-device {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 0.9rem;
  background: var(--panel);
  font-size: 0.9rem;
}
.midi-device span {
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.74rem;
}
.midi-log {
  max-height: 260px;
  overflow-y: auto;
  border: var(--rule);
  background: var(--panel);
  font-family: var(--mono);
  font-size: 0.74rem;
}
.midi-row {
  display: flex;
  gap: 0.8rem;
  padding: 0.28rem 0.8rem;
  border-bottom: 1px solid var(--line);
}
.midi-kind {
  color: var(--accent);
  min-width: 84px;
}

/* --------------------------------------------------------------- lab tests */

.click-pad,
.scroll-pad,
.reaction-pad {
  position: relative;
  height: 320px;
  border: var(--rule);
  background: var(--paper), var(--panel);
  display: grid;
  place-items: center;
  cursor: pointer;
  user-select: none;
  overflow: hidden;
  margin-bottom: 1rem;
}
.click-pad::after,
.scroll-pad::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  width: var(--progress, 0%);
  background: var(--accent);
  transition: width 0.06s linear;
}
.click-pad:active {
  border-color: var(--accent);
}
.click-big {
  font-family: var(--mono);
  font-size: clamp(3rem, 12vw, 5.5rem);
  font-weight: 500;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.click-sub {
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  margin-top: 0.5rem;
  text-align: center;
}
.click-ripple {
  position: absolute;
  width: 14px;
  height: 14px;
  margin: -7px 0 0 -7px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
  animation: ripple 0.5s ease-out forwards;
  pointer-events: none;
}
@keyframes ripple {
  to {
    transform: scale(5);
    opacity: 0;
  }
}

.scroll-pad {
  flex-direction: column;
}
.scroll-arrow {
  font-size: 1.3rem;
  color: var(--text-faint);
  transition: color 0.1s;
}
.scroll-arrow.is-hit {
  color: var(--accent);
}
.scroll-readout {
  text-align: center;
}

.reaction-pad {
  transition: background 0.05s;
}
.reaction-pad[data-state="waiting"] {
  background: #8f2626;
  color: #fff;
  border-color: #8f2626;
}
.reaction-pad[data-state="signal"] {
  background: #1f9c56;
  color: #04140d;
  border-color: #1f9c56;
}
.reaction-pad.is-highcontrast[data-state="waiting"] {
  background: #1b2632;
  color: #fff;
  border-color: #1b2632;
}
.reaction-pad.is-highcontrast[data-state="signal"] {
  background: #eef1f5;
  color: #0c1116;
  border-color: #eef1f5;
}
.reaction-headline {
  font-size: clamp(1.8rem, 7vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}
.reaction-sub {
  opacity: 0.85;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}
.reaction-rounds {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: var(--rule);
  margin-bottom: 1rem;
}
.reaction-round {
  text-align: center;
  padding: 0.6rem 0.3rem;
  background: var(--panel);
  color: var(--text-faint);
  font-family: var(--mono);
  font-size: 0.86rem;
  font-variant-numeric: tabular-nums;
}
.reaction-round.is-done {
  color: var(--text);
}

.history-wrap {
  margin-top: 1.6rem;
}
.history-wrap h3 {
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 500;
}
.history {
  list-style: none;
  padding: 0;
  margin: 0 0 0.8rem;
  border: var(--rule);
}
.history-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  background: var(--panel);
}
.history-row:last-child {
  border-bottom: 0;
}
.history-cps {
  color: var(--accent);
}
.history-empty {
  padding: 0.6rem 0.85rem;
  color: var(--text-faint);
  font-family: var(--mono);
  font-size: 0.8rem;
  background: var(--panel);
}

/* ----------------------------------------------------------------- sensors */

.battery {
  position: relative;
  width: 220px;
  height: 102px;
  border: 2px solid var(--line-strong);
  background: var(--bg);
}
.battery-cap {
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 9px;
  height: 34px;
  background: var(--line-strong);
}
.battery-fill {
  position: absolute;
  inset: 5px auto 5px 5px;
  width: 0;
  background: var(--accent);
  transition: width 0.4s;
}
.battery-fill.is-low {
  background: var(--danger);
}
.battery-fill.is-charging {
  background: linear-gradient(90deg, var(--accent), var(--signal));
}
.battery-pct {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 1.4rem;
  mix-blend-mode: difference;
  color: #fff;
  font-variant-numeric: tabular-nums;
}

.light-gauge {
  position: relative;
  width: 70px;
  height: 220px;
  border: 1px solid var(--line-strong);
  background: var(--bg);
  overflow: hidden;
}
.light-gauge-fill {
  position: absolute;
  inset: auto 0 0 0;
  height: 0;
  background: linear-gradient(0deg, var(--accent), var(--signal));
  transition: height 0.3s;
}

.maplink {
  display: inline-block;
  margin-bottom: 1rem;
  font-family: var(--mono);
  font-size: 0.8rem;
}

.cube-scene {
  width: 170px;
  height: 170px;
  perspective: 620px;
}
.cube {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.06s linear;
}
.cube-face {
  position: absolute;
  width: 170px;
  height: 170px;
  border: 1px solid var(--accent-deep);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.cube-front {
  transform: translateZ(85px);
}
.cube-back {
  transform: rotateY(180deg) translateZ(85px);
}
.cube-right {
  transform: rotateY(90deg) translateZ(85px);
}
.cube-left {
  transform: rotateY(-90deg) translateZ(85px);
}
.cube-top {
  transform: rotateX(90deg) translateZ(85px);
}
.cube-bottom {
  transform: rotateX(-90deg) translateZ(85px);
}

.bt-services {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--rule);
}
.bt-service {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0.85rem;
  background: var(--panel);
  font-family: var(--mono);
  font-size: 0.76rem;
}
.bt-service span {
  color: var(--text-dim);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(238px, 1fr));
  gap: 1px;
}
.capability {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.8rem;
  background: var(--panel);
  box-shadow: 0 0 0 1px var(--line);
  font-family: var(--sans);
  font-size: 0.85rem;
}
.capability-mark {
  font-family: var(--mono);
  font-weight: 700;
  width: 1em;
  flex: none;
}
.capability.is-yes .capability-mark {
  color: var(--accent);
}
.capability.is-no {
  color: var(--text-faint);
}
.capability.is-no .capability-mark {
  color: var(--danger);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    /* biome-ignore lint/complexity/noImportantStyles: must beat the animation it cancels */
    animation-duration: 0.01ms !important;
    /* biome-ignore lint/complexity/noImportantStyles: must beat the animation it cancels */
    animation-iteration-count: 1 !important;
    /* biome-ignore lint/complexity/noImportantStyles: must beat the transition it cancels */
    transition-duration: 0.01ms !important;
  }
}

/* Declared after .btn: a more specific rule placed earlier reads as dead. */
.card-static .btn {
  margin-top: 0.9rem;
  align-self: flex-start;
}

/* ------------------------------------------------------- machine / desktop */

.machine-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.8rem;
  margin-bottom: 1rem;
}

.machine-cols h3.rack-group {
  padding: 0 0 0.7rem;
  font-size: 0.6rem;
  font-weight: 500;
}

/* Displays drawn to relative scale: the one reading a browser tab cannot take. */
.display-stage {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  border: var(--rule);
  background: var(--paper), var(--panel);
  padding: 1.2rem;
  margin-bottom: 0.7rem;
  min-height: 150px;
}

.display-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  border: 1.5px solid var(--line-strong);
  background: color-mix(in srgb, var(--text) 3%, transparent);
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--text-dim);
  text-align: center;
  min-width: 76px;
  min-height: 48px;
  padding: 0.3rem;
}

.display-box.is-primary {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  color: var(--accent);
}

.disk-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.disk-row {
  background: var(--panel);
  box-shadow: 0 0 0 1px var(--line);
  padding: 0.7rem 0.85rem;
}

.disk-head {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 0.45rem;
  font-family: var(--mono);
  font-size: 0.74rem;
}

.disk-mount {
  color: var(--text);
}
.disk-free {
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}
.disk-bar {
  height: 5px;
  background: var(--grid);
  overflow: hidden;
}
.disk-fill {
  height: 100%;
  background: var(--accent);
}
.disk-fill.is-full {
  background: var(--danger);
}

/* The app shell. Present in every page's markup; only the desktop build shows it. */
.app-body {
  display: block;
}
.app-rack {
  display: none;
}
.nav-desktop-only {
  display: none;
}

.status-bar {
  position: sticky;
  bottom: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  padding: 0.5rem 1rem;
  border-top: var(--rule);
  background: var(--panel);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  color: var(--text-faint);
}

.status-bar[hidden] {
  display: none;
}
.status-bar-note {
  margin-left: auto;
  color: var(--signal);
}

[data-desktop] .app-body {
  display: grid;
  grid-template-columns: 208px minmax(0, 1fr);
  align-items: start;
}

[data-desktop] .app-rack {
  display: block;
  position: sticky;
  top: 53px;
  max-height: calc(100dvh - 53px);
  overflow-y: auto;
}

[data-desktop] .nav-desktop-only {
  display: inline-flex;
}
[data-desktop] .nav-web-only {
  display: none;
}
[data-desktop] .footer {
  display: none;
}
[data-desktop] .offline-banner {
  display: none;
}

/* The per-page rack would double the app-level one. */
[data-desktop] .test-layout {
  grid-template-columns: minmax(0, 1fr);
}
[data-desktop] .test-layout > .rack-nav {
  display: none;
}

[data-desktop] .header-inner {
  padding: 0.55rem 1rem;
}
[data-desktop] .main {
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  padding-bottom: 2.5rem;
}
[data-desktop] .test-page {
  padding-left: 0;
  padding-right: 0;
}
[data-desktop] .hero {
  padding-top: 2.5rem;
}

/* An app window is narrower than a marketing page; keep the rack usable. */
@media (max-width: 860px) {
  [data-desktop] .app-body {
    grid-template-columns: minmax(0, 1fr);
  }
  [data-desktop] .app-rack {
    display: none;
  }
  [data-desktop] .test-layout > .rack-nav {
    display: block;
  }
  [data-desktop] .test-layout {
    grid-template-columns: 232px minmax(0, 1fr);
  }
}

[data-desktop] .nav-desktop-only {
  padding: 0.35rem 0.75rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 0.86rem;
}

[data-desktop] .nav-desktop-only:hover {
  color: var(--text);
  border-color: var(--line);
  text-decoration: none;
}

[data-desktop] .nav {
  gap: 0.3rem;
}