/* ============================================================================
   SceneDeck — sections
   ========================================================================== */

/* ---- Tally spine --------------------------------------------------------- */
/* A rail down the left viewport edge, present from the first frame to the
   last. Its fill is a direct linear readout of scroll progress — telemetry,
   so it does not ease. */

.spine {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  z-index: var(--z-spine);
  background: color-mix(in oklab, var(--md-on-surface) 10%, transparent);
  pointer-events: none;
}

.spine__fill {
  display: block;
  width: 100%;
  height: calc(var(--sp, 0) * 100%);
  background: linear-gradient(180deg, var(--inst-rail), var(--md-primary));
}

@media (max-width: 599px) {
  .spine {
    display: none;
  }
}

/* ---- Rail (sticky header) ------------------------------------------------ */

.rail {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: color-mix(in oklab, var(--md-surface) 82%, transparent);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition:
    border-color var(--d-medium2) var(--ease-standard),
    box-shadow var(--d-medium2) var(--ease-standard);
}

.rail[data-scrolled] {
  border-bottom-color: var(--md-outline-variant);
  box-shadow: var(--shadow-2);
}

.rail__inner {
  max-width: var(--w-slab);
  margin-inline: auto;
  padding-inline: var(--page-margin);
  height: 68px;
  display: flex;
  align-items: center;
  gap: var(--s-5);
}

.rail__brand {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: -0.02em;
  color: var(--md-on-surface);
  text-decoration: none;
}

.rail__nav {
  display: flex;
  gap: var(--s-1);
  margin-inline-start: var(--s-5);
}

.rail__nav a {
  padding: var(--s-2) var(--s-3);
  border-radius: var(--r-full);
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition:
    background-color var(--d-short2) var(--ease-standard),
    color var(--d-short2) var(--ease-standard);
}

.rail__nav a:hover {
  background: color-mix(in oklab, var(--md-on-surface) 8%, transparent);
  color: var(--md-on-surface);
}

.rail__actions {
  margin-inline-start: auto;
  display: flex;
  align-items: center;
  gap: var(--s-2);
}

.icon--sun {
  display: none;
}

:root[data-theme="dark"] .icon--sun {
  display: block;
}

:root[data-theme="dark"] .icon--moon {
  display: none;
}

@media (max-width: 904px) {
  .rail__nav,
  .rail__version {
    display: none;
  }
}

@media (max-width: 480px) {
  .rail__cta {
    display: none;
  }
}

/* ---- Hero ---------------------------------------------------------------- */

.hero {
  position: relative;
  padding-block: clamp(56px, 8vw, 112px) var(--section-pad);
}

.hero__grid {
  display: grid;
  gap: var(--s-8);
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
}

@media (min-width: 1100px) {
  .hero__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: var(--s-9);
  }
}

.hero__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--s-5);
}

/* The hero headline shares its row with the device mock, so it is sized
   against the column it actually occupies rather than the viewport — the
   full poster scale is reserved for the full-bleed statements. */
.hero__title {
  margin-block: var(--s-2) 0;
  font-size: clamp(2.25rem, 5.4vw, 4.25rem);
  line-height: 0.9;
}

@media (min-width: 1100px) {
  .hero__title {
    font-size: clamp(3rem, 3.9vw, 4.5rem);
  }
}

.hero__lede {
  max-width: 46ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
}

.hero__code {
  width: min(100%, 460px);
}

.hero__deck {
  min-width: 0;
}

.hero__deck-note {
  margin-top: var(--s-4);
  text-align: center;
}

/* ---- The deck (app recreation) ------------------------------------------- */

.deck {
  border-radius: var(--r-xl);
  overflow: hidden;
  container-type: inline-size;
}

.deck__chrome {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-3) var(--s-4);
  background: var(--md-surface-container-high);
  border-bottom: 1px solid var(--md-outline-variant);
}

.deck__dots {
  display: flex;
  gap: 6px;
}

.deck__dots i {
  width: 10px;
  height: 10px;
  border-radius: var(--r-full);
  background: var(--md-outline-variant);
}

.deck__name {
  font-weight: 600;
  font-size: 0.875rem;
}

.deck__sel {
  margin-inline-start: auto;
  font-size: 0.625rem;
}

.deck__body {
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr);
  min-height: 340px;
}

.deck__rail {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--s-3);
  background: var(--md-surface-container);
  border-right: 1px solid var(--md-outline-variant);
}

.deck__page {
  text-align: left;
  padding: var(--s-2) var(--s-3);
  border-radius: var(--r-s);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  transition:
    background-color var(--d-short2) var(--ease-standard),
    color var(--d-short2) var(--ease-standard);
}

.deck__page:hover {
  background: color-mix(in oklab, var(--md-on-surface) 8%, transparent);
}

.deck__page.is-active {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.deck__rail-spacer {
  flex: 1;
  min-height: var(--s-4);
}

.deck__conn {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  font-size: 0.6875rem;
  color: var(--md-on-surface-variant);
  padding-inline: var(--s-2);
}

.deck__screen {
  padding: var(--s-4);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  min-width: 0;
}

.deck__status {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-4);
  padding: var(--s-2) var(--s-4);
  background: var(--md-surface-container-high);
  border-top: 1px solid var(--md-outline-variant);
  font-size: 0.6875rem;
  color: var(--md-on-surface-variant);
}

.deck__status-cell {
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.06em;
}

/* Screens inside the deck */
.screen-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--md-on-surface-variant);
}

.deck-scenes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-2);
}

@container (max-width: 520px) {
  .deck-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .deck__body {
    grid-template-columns: 96px minmax(0, 1fr);
  }
}

.deck-scene {
  position: relative;
  padding: var(--s-3);
  border-radius: var(--r-m);
  background: color-mix(in oklab, var(--scene-accent, var(--md-primary)) 26%, var(--md-surface-container-low));
  box-shadow: var(--bevel);
  font-size: 0.75rem;
  font-weight: 600;
  min-height: 54px;
  display: flex;
  align-items: flex-end;
  text-align: left;
  transition:
    outline-color var(--d-short3) var(--ease-standard),
    transform var(--d-short4) var(--ease-detent);
  outline: 2px solid transparent;
  outline-offset: -2px;
}

.deck-scene:hover {
  transform: translateY(-2px);
}

.deck-scene[data-program] {
  outline-color: var(--inst-live);
}

.deck-scene__pgm {
  position: absolute;
  top: 6px;
  right: 8px;
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.1em;
  color: var(--inst-live);
  opacity: 0;
  transition: opacity var(--d-short3) var(--ease-standard);
}

.deck-scene[data-program] .deck-scene__pgm {
  opacity: 1;
}

.deck-mixer {
  display: flex;
  gap: var(--s-2);
  align-items: flex-end;
  /* Five channels do not fit a phone-width device frame; the real app scrolls
     its mixer too. */
  overflow-x: auto;
  scrollbar-width: none;
}

.deck-strip {
  flex: 1 0 auto;
  min-width: 52px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-2);
  border-radius: var(--r-s);
  background: var(--md-surface-container-lowest);
  box-shadow: var(--bevel-recessed);
}

.deck-strip__meter {
  height: 56px;
  width: 8px;
}

.deck-strip__name {
  font-size: 0.5625rem;
  letter-spacing: 0.04em;
  color: var(--md-on-surface-variant);
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

/* ---- Faults -------------------------------------------------------------- */

.faults__title {
  margin-bottom: var(--s-8);
}

.faults {
  display: grid;
  gap: var(--s-6);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 700px) {
  .faults {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--s-7);
  }
}

@media (min-width: 1200px) {
  .faults {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.fault {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding-top: var(--s-4);
  border-top: 1px solid color-mix(in oklab, var(--inst-on-slab) 22%, transparent);
}

.fault__no {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--inst-signal);
}

/* ---- Live ---------------------------------------------------------------- */

.live__grid {
  display: grid;
  gap: var(--s-6);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 1000px) {
  .live__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: var(--s-7);
  }
}

.live__demo {
  padding: var(--s-5);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}

.live__demo-head {
  display: flex;
  justify-content: space-between;
  gap: var(--s-4);
  flex-wrap: wrap;
}

.live__pgm strong {
  color: var(--md-primary);
}

.live__cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--s-3);
}

.scene-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--s-1);
  min-height: 86px;
  padding: var(--s-3);
  border-radius: var(--r-m);
  background: color-mix(in oklab, var(--scene-accent) 30%, var(--md-surface-container-low));
  box-shadow: var(--shadow-1), var(--bevel);
  text-align: left;
  font-weight: 600;
  cursor: pointer;
  outline: 2px solid transparent;
  outline-offset: -2px;
  transition:
    transform var(--d-short4) var(--ease-detent),
    box-shadow var(--d-short4) var(--ease-standard),
    outline-color var(--d-short3) var(--ease-standard);
}

.scene-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-3), var(--bevel);
}

.scene-card[data-program] {
  outline-color: var(--inst-live);
}

.scene-card__tally {
  position: absolute;
  top: var(--s-3);
  right: var(--s-3);
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.12em;
  color: var(--inst-live);
  opacity: 0;
  transition: opacity var(--d-short3) var(--ease-standard);
}

.scene-card[data-program] .scene-card__tally {
  opacity: 1;
}

.scene-card__name {
  font-size: 0.9375rem;
}

.live__accents {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding-top: var(--s-4);
  border-top: 1px solid var(--md-outline-variant);
}

.live__chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}

.live__side {
  display: flex;
  flex-direction: column;
  gap: var(--s-5);
}

.live__note {
  padding: var(--s-5);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}

.role-list {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
}

.role-list li {
  display: flex;
  align-items: center;
  gap: var(--s-3);
}

.role-list .tag {
  flex: none;
  min-width: 76px;
  justify-content: center;
}

/* ---- Stats (showpiece) --------------------------------------------------- */

.stats__slab {
  padding-block: var(--showpiece-pad);
}

.meterwall {
  display: flex;
  flex-direction: column;
  gap: var(--s-6);
}

.gauges {
  display: grid;
  gap: var(--s-5);
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}

.gauge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-5);
  border-radius: var(--r-l);
  background: rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.gauge svg {
  width: 100%;
  max-width: 180px;
  height: auto;
}

.gauge__track {
  fill: none;
  stroke: rgba(255, 255, 255, 0.12);
  stroke-width: 10;
  stroke-linecap: round;
}

.gauge__value {
  fill: none;
  stroke: var(--md-primary);
  stroke-width: 10;
  stroke-linecap: round;
  transition: stroke-dashoffset var(--d-medium2) var(--ease-mechanical), stroke var(--d-medium2) var(--ease-mechanical);
}

.gauge[data-severity="warn"] .gauge__value {
  stroke: var(--inst-warn);
}

.gauge[data-severity="error"] .gauge__value {
  stroke: var(--inst-live);
}

.gauge__readout {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
  color: var(--inst-on-slab);
}

.gauge__unit {
  font-size: 0.875rem;
  color: color-mix(in oklab, var(--inst-on-slab) 60%, transparent);
}

.charts {
  display: grid;
  gap: var(--s-5);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.chart {
  position: relative;
  margin: 0;
  padding: var(--s-4);
  border-radius: var(--r-l);
  background: rgba(0, 0, 0, 0.32);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.07);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}

.chart svg {
  width: 100%;
  height: 96px;
  overflow: visible;
}

.chart__line {
  fill: none;
  stroke: var(--md-primary);
  stroke-width: 2;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.chart__area {
  fill: color-mix(in oklab, var(--md-primary) 22%, transparent);
  stroke: none;
}

.chart__now {
  position: absolute;
  top: var(--s-4);
  right: var(--s-4);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--inst-on-slab);
}

.counters {
  display: grid;
  gap: var(--s-3);
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.counter {
  padding: var(--s-4);
  border-radius: var(--r-m);
  background: rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.07);
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}

.counter__value {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1;
  color: var(--inst-on-slab);
}

.stats__notes {
  display: grid;
  gap: var(--s-5);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-top: var(--s-7);
}

.stats__notes strong {
  color: var(--inst-on-slab);
}

.stats__foot {
  margin-top: var(--s-5);
}

/* ---- Audio --------------------------------------------------------------- */

.audio__grid {
  display: grid;
  gap: var(--s-6);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 1000px) {
  .audio__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: var(--s-7);
  }
}

.mixer {
  padding: var(--s-5);
  display: flex;
  gap: var(--s-3);
  align-items: stretch;
  overflow-x: auto;
}

.strip {
  flex: 1 1 0;
  min-width: 96px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-4) var(--s-3);
  border-radius: var(--r-m);
  background: var(--md-surface-container-lowest);
  box-shadow: var(--bevel-recessed);
}

.strip__name {
  font-size: 0.75rem;
  font-weight: 600;
  text-align: center;
  color: var(--md-on-surface-variant);
}

.strip__stage {
  display: flex;
  gap: var(--s-3);
  align-items: stretch;
  height: 168px;
}

.strip__meter {
  width: 10px;
}

/* The fader. A real slider: pointer-draggable and keyboard operable. */
.fader {
  position: relative;
  width: 34px;
  border-radius: var(--r-full);
  background: var(--md-surface-container-high);
  box-shadow: var(--bevel-recessed);
  cursor: grab;
  touch-action: none;
}

.fader:active {
  cursor: grabbing;
}

.fader__cap {
  position: absolute;
  left: 50%;
  translate: -50% 50%;
  bottom: calc(var(--level, 0.7) * (100% - 26px) + 13px);
  width: 30px;
  height: 22px;
  border-radius: var(--r-xs);
  background: linear-gradient(180deg, var(--md-surface-container-highest), var(--md-surface-container));
  box-shadow: var(--shadow-2), var(--bevel);
  transition: bottom var(--d-short2) var(--ease-mechanical);
}

.fader__cap::after {
  content: "";
  position: absolute;
  inset-inline: 5px;
  top: 50%;
  height: 2px;
  translate: 0 -50%;
  background: var(--md-outline);
  border-radius: 1px;
}

.fader[data-locked="true"] {
  cursor: not-allowed;
  opacity: 0.72;
}

.fader[data-locked="true"] .fader__cap {
  background: var(--md-surface-container);
}

.strip__readout {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  color: var(--md-on-surface);
}

.strip__controls {
  display: flex;
  gap: var(--s-2);
}

.strip__btn {
  width: 34px;
  height: 30px;
  border-radius: var(--r-s);
  background: var(--md-surface-container);
  box-shadow: var(--bevel);
  color: var(--md-on-surface-variant);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition:
    background-color var(--d-short2) var(--ease-standard),
    color var(--d-short2) var(--ease-standard);
}

.strip__btn[aria-pressed="true"] {
  background: var(--inst-live);
  color: #fff;
}

.strip__btn.strip__lock[aria-pressed="true"] {
  background: var(--inst-armed);
  color: #241a00;
}

.audio__points {
  display: flex;
  flex-direction: column;
  gap: var(--s-5);
}

.audio__point {
  padding: var(--s-5);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}

.audio__point .body-md {
  color: var(--md-on-surface-variant);
}

/* ---- Structure ----------------------------------------------------------- */

.structure__grid {
  display: grid;
  gap: var(--s-6);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 900px) {
  .structure__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.structure__card {
  padding: var(--s-6);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}

.graphviz {
  border-radius: var(--r-m);
  background: var(--md-surface-container-lowest);
  box-shadow: var(--bevel-recessed);
  padding: var(--s-3);
}

.graphviz svg {
  width: 100%;
  height: auto;
}

.graphviz__edges path {
  fill: none;
  stroke: var(--md-outline);
  stroke-width: 1.5;
}

.graphviz__edges path[data-status="warn"] {
  stroke: var(--inst-warn);
  stroke-dasharray: 4 3;
}

.graphviz__nodes rect {
  fill: var(--md-surface-container-high);
  stroke: var(--md-outline-variant);
}

.graphviz__nodes rect[data-role="primary"] {
  fill: var(--md-primary-container);
  stroke: var(--md-primary);
}

.graphviz__nodes text {
  font-family: var(--font-mono);
  font-size: 9px;
  fill: var(--md-on-surface);
}

.doctor {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}

.doctor__row {
  display: flex;
  align-items: flex-start;
  gap: var(--s-3);
  padding: var(--s-3);
  border-radius: var(--r-s);
  background: var(--md-surface-container-lowest);
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
}

.doctor__mark {
  width: 8px;
  height: 8px;
  margin-top: 6px;
  flex: none;
  border-radius: var(--r-full);
  background: var(--inst-ok);
}

.doctor__row[data-state="warn"] .doctor__mark {
  background: var(--inst-warn);
}

.doctor__row[data-state="error"] .doctor__mark {
  background: var(--inst-live);
}

/* ---- Settings ------------------------------------------------------------ */

.settings__grid {
  display: grid;
  gap: var(--s-5);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.settings__card {
  padding: var(--s-6);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}

.settings__card code {
  font-size: 0.875em;
  padding: 1px 5px;
  border-radius: var(--r-xs);
  background: color-mix(in oklab, var(--md-on-surface) 8%, transparent);
}

.keyring {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  align-self: flex-start;
  padding: var(--s-2) var(--s-3);
  border-radius: var(--r-full);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.keyring .icon {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.swatches {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: var(--s-2);
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
}

.swatches li {
  display: flex;
  align-items: center;
  gap: var(--s-2);
}

.swatches span {
  width: 26px;
  height: 18px;
  flex: none;
  border-radius: var(--r-xs);
  background: linear-gradient(135deg, var(--a) 0 50%, var(--b) 50% 100%);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.25);
}

/* ---- Native -------------------------------------------------------------- */

.native__slab {
  padding-bottom: 0;
}

.native__title {
  margin-bottom: var(--s-6);
}

.native__lede {
  margin-bottom: var(--s-7);
}

.plates {
  display: grid;
  gap: var(--s-4);
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin-bottom: var(--s-6);
}

.plate {
  padding: var(--s-4);
  border-radius: var(--r-m);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.plate dd {
  margin: var(--s-2) 0 0;
  color: var(--inst-on-slab);
  font-size: 1.0625rem;
}

.native__arch {
  margin-bottom: var(--slab-pad);
}

.marquee {
  overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-block: var(--s-4);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 34s linear infinite;
}

.marquee__track span {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: color-mix(in oklab, var(--inst-on-slab) 44%, transparent);
  white-space: pre;
}

@keyframes marquee {
  to {
    transform: translateX(-50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .marquee__track {
    animation: none;
  }
}

/* ---- Install ------------------------------------------------------------- */

.patchbay {
  display: grid;
  gap: var(--s-5);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 900px) {
  .patchbay {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: var(--s-6);
  }
}

.patchbay__tabs {
  display: flex;
  flex-direction: row;
  gap: var(--s-2);
  overflow-x: auto;
  padding-bottom: var(--s-2);
}

@media (min-width: 900px) {
  .patchbay__tabs {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }
}

.jack {
  flex: none;
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-3) var(--s-4);
  border-radius: var(--r-m);
  background: var(--md-surface-container-low);
  box-shadow: var(--bevel);
  text-align: left;
  cursor: pointer;
  transition:
    background-color var(--d-short3) var(--ease-standard),
    box-shadow var(--d-short3) var(--ease-standard);
}

.jack:hover {
  background: var(--md-surface-container);
}

.jack[aria-selected="true"] {
  background: var(--md-primary-container);
  box-shadow: var(--shadow-2), var(--bevel);
}

/* The socket: a machined ring that lights when patched. */
.jack__socket {
  width: 20px;
  height: 20px;
  flex: none;
  border-radius: var(--r-full);
  background: radial-gradient(circle at 50% 40%, var(--md-surface-container-lowest) 38%, var(--md-surface-container-highest) 40%);
  box-shadow: var(--bevel-recessed);
  transition: background var(--d-short3) var(--ease-standard);
}

.jack[aria-selected="true"] .jack__socket {
  background: radial-gradient(circle at 50% 40%, var(--inst-ok) 38%, var(--md-surface-container-highest) 40%);
}

.jack__name {
  font-weight: 600;
  font-size: 0.9375rem;
}

.jack[aria-selected="true"] .jack__name {
  color: var(--md-on-primary-container);
}

.jack__hint {
  display: none;
  margin-inline-start: auto;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.06em;
  color: var(--md-on-surface-variant);
}

@media (min-width: 900px) {
  .jack {
    flex-wrap: wrap;
  }

  .jack__hint {
    display: block;
    flex-basis: 100%;
    margin-inline-start: 32px;
  }
}

/* `display: flex` would otherwise win over the hidden attribute's UA rule and
   every install pane would render at once. */
.pane[hidden] {
  display: none;
}

.pane {
  padding: var(--s-6);
  border-radius: var(--r-l);
  background: var(--md-surface-container-low);
  box-shadow: var(--shadow-1), var(--bevel);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  animation: pane-in var(--d-medium4) var(--ease-emphasized) both;
}

@keyframes pane-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}

.pane .prose {
  margin: 0;
}

.pane code {
  font-size: 0.875em;
}

.dl-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}

.snapbadge {
  align-self: flex-start;
  border-radius: var(--r-xs);
  transition: transform var(--d-short4) var(--ease-detent);
}

.snapbadge:hover {
  transform: translateY(-2px);
}

.install__verify {
  margin-top: var(--s-5);
}

/* ---- Spec ---------------------------------------------------------------- */

.spec__grid {
  display: grid;
  gap: var(--s-6);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 900px) {
  .spec__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }
}

.reqs {
  padding: var(--s-6);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  align-self: start;
}

.reqs div + div {
  padding-top: var(--s-4);
  border-top: 1px solid var(--md-outline-variant);
}

.reqs dd {
  margin: var(--s-2) 0 0;
  color: var(--md-on-surface-variant);
}

.faq {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}

.qa {
  border-radius: var(--r-m);
  background: var(--md-surface-container-low);
  box-shadow: var(--bevel);
  overflow: hidden;
}

.qa summary {
  padding: var(--s-4) var(--s-5);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--s-3);
}

.qa summary::-webkit-details-marker {
  display: none;
}

.qa summary::after {
  content: "";
  margin-inline-start: auto;
  width: 10px;
  height: 10px;
  flex: none;
  border-right: 2px solid var(--md-on-surface-variant);
  border-bottom: 2px solid var(--md-on-surface-variant);
  rotate: 45deg;
  transition: rotate var(--d-short3) var(--ease-standard);
}

.qa[open] summary::after {
  rotate: 225deg;
}

.qa p {
  padding: 0 var(--s-5) var(--s-5);
  color: var(--md-on-surface-variant);
}

/* ---- Footer -------------------------------------------------------------- */

.footer {
  padding-block: var(--s-9) var(--s-6);
  border-top: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container-low);
}

.footer__inner {
  display: grid;
  gap: var(--s-7);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 800px) {
  .footer__inner {
    grid-template-columns: minmax(0, 1.6fr) repeat(2, minmax(0, 1fr));
  }
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  max-width: 42ch;
}

.footer__brand .body-md {
  color: var(--md-on-surface-variant);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}

.footer__links a {
  color: var(--md-on-surface-variant);
  text-decoration: none;
  font-size: 0.9375rem;
}

.footer__links a:hover {
  color: var(--md-primary);
  text-decoration: underline;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-4);
  margin-top: var(--s-8);
  padding-top: var(--s-5);
  border-top: 1px solid var(--md-outline-variant);
}

/* On a narrow screen the chart's live readout sits on top of the end of its
   own caption, so the two stack instead. */
@media (max-width: 520px) {
  .chart__now {
    position: static;
    align-self: flex-start;
  }
}

@media (pointer: coarse) {
  .deck__page {
    padding-block: var(--s-3);
  }
}

/* ---- Terminal (the TUI siblings) ----------------------------------------- */

.tui-grid {
  display: grid;
  gap: var(--s-4);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
}

.tui {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  height: 100%;
  padding: var(--s-5);
  color: inherit;
  text-decoration: none;
  transition:
    transform var(--d-short4) var(--ease-detent),
    box-shadow var(--d-short4) var(--ease-standard),
    background-color var(--d-short4) var(--ease-standard);
}

.tui:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-3), var(--bevel);
}

.tui h3 {
  /* A terminal tool's name is a command you type, so it is set as one. */
  color: var(--md-primary);
}

.tui .body-md {
  color: var(--md-on-surface-variant);
  flex: 1;
}

.tui__go {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  font-size: 0.625rem;
  overflow-wrap: anywhere;
}

.tui__go::before {
  content: "→";
  flex: none;
  color: var(--md-primary);
}

.terminal__all {
  margin-top: var(--s-5);
}

/* ---- The link: two machines ---------------------------------------------- */
/* The premise of the whole product, drawn. Two computers with their screens
   showing what each is actually doing, and the WebSocket between them carrying
   commands one way and state the other. All CSS — a diagram this size does not
   need a canvas, and this way it themes and scales with the page. */

.rig {
  display: grid;
  gap: var(--s-5);
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

@media (min-width: 940px) {
  .rig {
    grid-template-columns: minmax(0, 1fr) minmax(180px, 0.72fr) minmax(0, 1fr);
    gap: var(--s-4);
    align-items: center;
  }
}

.box {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-3);
}

.box__tag {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  color: var(--md-on-surface-variant);
}

/* ---- The monitor --------------------------------------------------------- */

.screen {
  width: 100%;
  /* A diagram, not a device mock: capped so the two machines read as a pair
     at a glance rather than as two more panels. */
  max-width: 320px;
  border-radius: var(--r-l);
  overflow: hidden;
  background: var(--md-surface-container-low);
  box-shadow: var(--shadow-3), var(--bevel), 0 0 0 1px var(--md-outline-variant);
}

:root[data-theme="dark"] .screen {
  background: color-mix(in oklab, var(--md-primary) 6%, var(--md-surface-container-low));
}

.screen__bar {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  padding: 7px var(--s-3);
  background: var(--md-surface-container-high);
  border-bottom: 1px solid var(--md-outline-variant);
}

.screen__dots {
  display: flex;
  gap: 4px;
}

.screen__dots i {
  width: 6px;
  height: 6px;
  border-radius: var(--r-full);
  background: var(--md-outline-variant);
}

.screen__name {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
}

.screen__rec {
  margin-inline-start: auto;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.5625rem;
  color: var(--inst-live);
}

.screen__rec::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: var(--r-full);
  background: var(--inst-live);
  animation: rec-blink 1.8s var(--ease-mechanical) infinite;
}

@keyframes rec-blink {
  0%, 55% { opacity: 1; }
  75%, 100% { opacity: 0.25; }
}

.screen__body {
  aspect-ratio: 16 / 9;
  padding: var(--s-3);
  display: flex;
  gap: var(--s-2);
}

/* -- what SceneDeck is showing --------------------------------------------- */

.screen__body--deck {
  align-items: stretch;
}

.mini-rail {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 17%;
  flex: none;
}

.mini-rail i {
  height: 8px;
  border-radius: 2px;
  background: color-mix(in oklab, var(--md-on-surface) 14%, transparent);
}

.mini-rail i:first-child {
  background: var(--md-primary);
}

.mini-scenes {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 1fr;
  gap: 5px;
  min-width: 0;
}

.mini-tile {
  border-radius: 4px;
  background: color-mix(in oklab, var(--md-primary) 26%, var(--md-surface-container));
  box-shadow: var(--bevel);
}

/* The scene that is on program, outlined in tally red — the one thing you are
   reaching across the room to change. */
.mini-tile.is-pgm {
  outline: 2px solid var(--inst-live);
  outline-offset: -2px;
  animation: pgm-pulse 3.2s var(--ease-standard) infinite;
}

@keyframes pgm-pulse {
  0%, 70%, 100% { outline-color: var(--inst-live); }
  85% { outline-color: color-mix(in oklab, var(--inst-live) 45%, transparent); }
}

.mini-faders {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 4px;
  width: 13%;
  flex: none;
}

.mini-faders i {
  height: 5px;
  border-radius: 2px;
  background: color-mix(in oklab, var(--md-primary) 45%, transparent);
}

.mini-faders i:nth-child(2) { width: 74%; }
.mini-faders i:nth-child(3) { width: 88%; }
.mini-faders i:nth-child(4) { width: 60%; }

/* -- what OBS is showing --------------------------------------------------- */

.screen__body--obs {
  flex-direction: column;
}

.mini-preview {
  position: relative;
  flex: 1;
  border-radius: 5px;
  background:
    radial-gradient(120% 100% at 30% 20%, color-mix(in oklab, var(--feed-near) 55%, transparent), transparent 70%),
    color-mix(in oklab, var(--md-on-surface) 10%, var(--md-surface-container-lowest));
  box-shadow: var(--bevel-recessed);
  overflow: hidden;
}

/* A framed subject and a lower-third: enough to read as a composed scene. */
.mini-cam {
  position: absolute;
  left: 13%;
  top: 24%;
  width: 17%;
  aspect-ratio: 1;
  border-radius: var(--r-full);
  background: color-mix(in oklab, var(--inst-armed) 70%, transparent);
}

.mini-overlay {
  position: absolute;
  left: 10%;
  right: 34%;
  bottom: 14%;
  height: 12%;
  border-radius: 3px;
  background: color-mix(in oklab, var(--md-primary) 60%, transparent);
}

.mini-meters {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 13px;
  margin-top: var(--s-2);
}

.mini-meters i {
  flex: 1;
  border-radius: 1px;
  background: color-mix(in oklab, var(--inst-ok) 65%, transparent);
  animation: enc-bars 1.4s var(--ease-mechanical) infinite alternate;
}

.mini-meters i:nth-child(1) { height: 55%; animation-delay: 0s; }
.mini-meters i:nth-child(2) { height: 80%; animation-delay: 0.15s; }
.mini-meters i:nth-child(3) { height: 40%; animation-delay: 0.3s; }
.mini-meters i:nth-child(4) { height: 92%; animation-delay: 0.45s; }
.mini-meters i:nth-child(5) { height: 62%; animation-delay: 0.6s; }
.mini-meters i:nth-child(6) { height: 75%; animation-delay: 0.75s; }

@keyframes enc-bars {
  to { transform: scaleY(0.45); transform-origin: bottom; }
}

/* ---- The stand ----------------------------------------------------------- */

.box__stand {
  width: 84px;
  height: 10px;
  border-radius: 0 0 var(--r-s) var(--r-s);
  background: linear-gradient(180deg, var(--md-surface-container-highest), var(--md-surface-container));
  box-shadow: var(--shadow-1);
}

.box__note {
  text-align: center;
  line-height: 1.6;
}

/* ---- The wire ------------------------------------------------------------ */

.wire {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  text-align: center;
}

.wire__proto,
.wire__addr {
  color: var(--md-on-surface-variant);
  font-size: 0.625rem;
}

.wire__lane {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.wire__cap {
  font-size: 0.5625rem;
  color: var(--md-on-surface-variant);
}

.wire__line {
  position: relative;
  display: block;
  height: 3px;
  border-radius: var(--r-full);
  background: color-mix(in oklab, var(--md-outline) 38%, transparent);
  overflow: hidden;
}

.wire__line i {
  position: absolute;
  inset-block: 0;
  left: 0;
  width: 30%;
  border-radius: inherit;
  background: linear-gradient(90deg, transparent, var(--md-primary), transparent);
  animation: wire-out 2.6s var(--ease-mechanical) infinite;
}

.wire__line i:nth-child(2) { animation-delay: 0.85s; }
.wire__line i:nth-child(3) { animation-delay: 1.7s; }

/* State comes back the other way, in the healthy-signal green. */
.wire__line--back i {
  background: linear-gradient(90deg, transparent, var(--inst-ok), transparent);
  animation-name: wire-back;
}

@keyframes wire-out {
  from { transform: translateX(-110%); }
  to { transform: translateX(440%); }
}

@keyframes wire-back {
  from { transform: translateX(440%); }
  to { transform: translateX(-110%); }
}

/* On a narrow screen the machines stack, so the link runs vertically. */
@media (max-width: 939px) {
  .wire {
    flex-direction: row;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--s-3);
  }

  .wire__lane {
    flex: 1 1 160px;
  }
}

/* ---- The uplink ---------------------------------------------------------- */

.uplink {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  margin-top: var(--s-2);
}

.uplink__line {
  position: relative;
  display: block;
  width: 44px;
  height: 3px;
  flex: none;
  border-radius: var(--r-full);
  background: color-mix(in oklab, var(--inst-live) 30%, transparent);
  overflow: hidden;
}

.uplink__line i {
  position: absolute;
  inset-block: 0;
  left: 0;
  width: 40%;
  border-radius: inherit;
  background: var(--inst-live);
  animation: wire-out 1.9s var(--ease-mechanical) infinite;
}

.uplink__line i:nth-child(2) { animation-delay: 0.95s; }

.uplink .legend {
  font-size: 0.5625rem;
}

@media (prefers-reduced-motion: reduce) {
  .wire__line i,
  .uplink__line i,
  .mini-meters i,
  .screen__rec::before,
  .mini-tile.is-pgm {
    animation: none;
  }

  .wire__line i:first-child,
  .uplink__line i:first-child {
    transform: translateX(120%);
  }
}

.link__note {
  margin-top: var(--s-6);
}

/* ---- Screenshots --------------------------------------------------------- */

.shots__grid {
  display: grid;
  gap: var(--s-5);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
}

.shot {
  margin: 0;
  padding: var(--s-3);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  overflow: hidden;
}

/* The thumbnail is a button, so it has to stop looking like one. */
.shot__open {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border-radius: var(--r-m);
  overflow: hidden;
  cursor: zoom-in;
  transition:
    transform var(--d-short4) var(--ease-detent),
    box-shadow var(--d-short4) var(--ease-standard);
}

.shot__open:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-3);
}

.shot img {
  width: 100%;
  height: auto;
  border-radius: var(--r-m);
  box-shadow: var(--shadow-2);
}

/* An affordance that says "this opens", without covering the screenshot. */
.shot__zoom {
  position: absolute;
  right: var(--s-3);
  bottom: var(--s-3);
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: var(--r-s);
  background: color-mix(in oklab, var(--md-surface) 82%, transparent);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: inset 0 0 0 1px var(--md-outline-variant);
  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity var(--d-short3) var(--ease-standard),
    transform var(--d-short3) var(--ease-emphasized-decel);
}

.shot__zoom svg {
  width: 16px;
  height: 16px;
  fill: var(--md-on-surface);
}

.shot__open:hover .shot__zoom,
.shot__open:focus-visible .shot__zoom {
  opacity: 1;
  transform: none;
}

/* Touch has no hover, so the affordance is simply always there. */
@media (pointer: coarse) {
  .shot__zoom {
    opacity: 1;
    transform: none;
  }
}

/* ---- The viewer ---------------------------------------------------------- */

.lightbox {
  width: 100vw;
  max-width: 100vw;
  height: 100dvh;
  max-height: 100dvh;
  margin: 0;
  padding: clamp(16px, 4vw, 56px);
  border: 0;
  background: transparent;
  color: var(--md-on-surface);
  overscroll-behavior: contain;
}

.lightbox::backdrop {
  background: color-mix(in oklab, var(--md-scrim) 78%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.lightbox[open] {
  display: grid;
  place-items: center;
}

.lightbox__frame {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  align-items: center;
  max-width: min(1180px, 100%);
  animation: lightbox-in var(--d-medium3) var(--ease-emphasized-decel) both;
}

@keyframes lightbox-in {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
}

.lightbox img {
  max-width: 100%;
  /* Leave room for the caption and the counter rather than letting the image
     push them off a short viewport. */
  max-height: calc(100dvh - 190px);
  width: auto;
  height: auto;
  border-radius: var(--r-l);
  box-shadow: var(--shadow-4);
  background: var(--md-surface-container);
}

.lightbox figcaption {
  text-align: center;
  color: var(--md-on-surface-variant);
}

.lightbox__close,
.lightbox__nav {
  position: absolute;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: var(--r-full);
  cursor: pointer;
  color: var(--md-on-surface);
  background: color-mix(in oklab, var(--md-surface) 80%, transparent);
  box-shadow: inset 0 0 0 1px var(--md-outline-variant), var(--shadow-2);
  transition:
    background-color var(--d-short2) var(--ease-standard),
    transform var(--d-short2) var(--ease-detent);
}

.lightbox__close:hover,
.lightbox__nav:hover {
  background: var(--md-surface-container-high);
  transform: scale(1.06);
}

.lightbox__close svg,
.lightbox__nav svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.lightbox__close {
  top: clamp(12px, 3vw, 28px);
  right: clamp(12px, 3vw, 28px);
}

.lightbox__nav {
  top: 50%;
  translate: 0 -50%;
}

.lightbox__nav--prev {
  left: clamp(8px, 2vw, 24px);
}

.lightbox__nav--next {
  right: clamp(8px, 2vw, 24px);
}

.lightbox__count {
  position: absolute;
  bottom: clamp(12px, 3vw, 28px);
  left: 50%;
  translate: -50% 0;
  color: var(--md-on-surface-variant);
}

/* On a phone the side arrows would sit on top of the image, so they move to
   the bottom corners where thumbs already are. */
@media (max-width: 600px) {
  .lightbox__nav {
    top: auto;
    bottom: clamp(12px, 3vw, 28px);
    translate: none;
  }

  .lightbox img {
    max-height: calc(100dvh - 230px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .lightbox__frame {
    animation: none;
  }
}

.shot figcaption {
  padding-inline: var(--s-2);
}