/* ============================================================
   Brent Panels · coming soon
   ============================================================ */

:root {
  --bg: #0b0d10;
  --ink: #eef0f2;
  --ink-2: #c3cad2;
  --ink-dim: #8793a0;
  --cad: rgba(150, 190, 235, .22);
  --cad-text: rgba(160, 196, 235, .55);
  --dim-blue: rgba(110, 185, 255, .8);

  --yellow: #ffc928;
  --amber: #ffae1a;
  --green: #29e07a;
  --red: #ff3b30;
  --blue: #3a9bff;

  --font-display: "Barlow Condensed", "Arial Narrow", system-ui, sans-serif;
  --font-body: "Barlow", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;

  --fi: 12px;   /* frame inset */
  --fb: 16px;   /* frame band  */

  --chrome: conic-gradient(from 210deg, #7f878e, #f1f4f6 12%, #8f979e 25%, #e4e8eb 38%, #737b82 52%, #f4f6f8 66%, #8a9299 80%, #dfe3e6 92%, #7f878e);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
  overflow-x: clip;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  overflow-x: clip;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

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

p { margin: 0; }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

/* ---------- background: drafting grid ---------- */

.bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(70rem 46rem at 74% 26%, rgba(58, 155, 255, .11), transparent 62%),
    radial-gradient(52rem 40rem at 6% 96%, rgba(255, 201, 40, .07), transparent 60%),
    linear-gradient(rgba(140, 180, 255, .045) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, rgba(140, 180, 255, .045) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(rgba(140, 180, 255, .085) 1px, transparent 1px) 0 0 / 120px 120px,
    linear-gradient(90deg, rgba(140, 180, 255, .085) 1px, transparent 1px) 0 0 / 120px 120px,
    var(--bg);
}

.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .5;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
}

/* ---------- drawing frame ---------- */

.frame {
  position: fixed;
  inset: var(--fi);
  z-index: 50;
  pointer-events: none;
  border: 1px solid var(--cad);
  transition: border-color .3s;
}

.frame::before {
  content: "";
  position: absolute;
  inset: var(--fb);
  border: 1px solid rgba(150, 190, 235, .12);
}

.zones {
  position: absolute;
  display: flex;
  font: 500 10px/1 var(--font-mono);
  color: var(--cad-text);
}

.zones span {
  flex: 1;
  display: grid;
  place-items: center;
}

.zones-top, .zones-bottom { left: var(--fb); right: var(--fb); height: var(--fb); }
.zones-top { top: 0; }
.zones-bottom { bottom: 0; }
.zones-top span + span, .zones-bottom span + span { border-left: 1px solid rgba(150, 190, 235, .12); }

.zones-left, .zones-right { top: var(--fb); bottom: var(--fb); width: var(--fb); flex-direction: column; }
.zones-left { left: 0; }
.zones-right { right: 0; }
.zones-left span + span, .zones-right span + span { border-top: 1px solid rgba(150, 190, 235, .12); }

/* ---------- crosshair (desktop) ---------- */

.crosshair { display: none; }

@media (pointer: fine) {
  .crosshair { display: block; position: fixed; inset: 0; z-index: 45; pointer-events: none; opacity: 0; transition: opacity .4s; }
  .crosshair.is-on { opacity: 1; }
  .crosshair i { position: absolute; background: rgba(255, 201, 40, .11); }
  .ch-x { left: 0; right: 0; top: 0; height: 1px; }
  .ch-y { top: 0; bottom: 0; left: 0; width: 1px; }
}

/* ---------- full-page effects ---------- */

.surge {
  position: fixed;
  inset: 0;
  z-index: 30;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(circle at var(--sx, 70%) var(--sy, 50%), rgba(90, 255, 160, .22), transparent 38%),
    radial-gradient(circle at var(--sx, 70%) var(--sy, 50%), transparent 30%, rgba(90, 255, 160, .10) 34%, transparent 42%);
}
.surge.go { animation: surge 1s ease-out; }

@keyframes surge {
  0% { opacity: 0; }
  12% { opacity: 1; }
  100% { opacity: 0; }
}

.alarm {
  position: fixed;
  inset: 0;
  z-index: 31;
  pointer-events: none;
  opacity: 0;
  box-shadow: inset 0 0 14vmax rgba(255, 30, 20, .55);
}

body.alarming .alarm { animation: alarm 1s ease-in-out infinite; }
body.alarming .frame { border-color: rgba(255, 80, 70, .55); }

@keyframes alarm {
  0%, 100% { opacity: .2; }
  50% { opacity: 1; }
}

/* ---------- top bar ---------- */

.topbar {
  position: absolute;
  z-index: 20;
  top: calc(var(--fi) + var(--fb) + 14px);
  left: calc(var(--fi) + var(--fb) + 22px);
  right: calc(var(--fi) + var(--fb) + 22px);
  display: flex;
  align-items: center;
  gap: 24px;
  font: 500 12px/1 var(--font-mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font: 800 18px/1 var(--font-display);
  letter-spacing: .14em;
}

.mark-led {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 10px var(--amber), 0 0 22px rgba(255, 174, 26, .5);
  animation: blink 1.4s steps(1, end) infinite;
}

.topbar-meta { display: flex; gap: 18px; flex: 1; }
.topbar-meta span + span::before { content: "·"; margin-right: 18px; color: rgba(160, 196, 235, .35); }

.topbar-right { display: flex; align-items: center; gap: 18px; margin-left: auto; }
.coords { min-width: 20ch; text-align: right; color: var(--cad-text); }

.snd {
  padding: 7px 10px;
  border: 1px solid rgba(160, 196, 235, .28);
  border-radius: 4px;
  background: rgba(10, 14, 19, .6);
  font: 500 11px/1 var(--font-mono);
  letter-spacing: .14em;
  color: var(--ink-dim);
}
.snd b { color: var(--green); font-weight: 600; }
.snd[aria-pressed="false"] b { color: var(--ink-dim); }
.snd:hover { border-color: rgba(255, 201, 40, .6); color: var(--ink); }

/* ============================================================
   HERO / SHEET 01
   ============================================================ */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(40px, 6vw, 120px);
  padding: 120px clamp(48px, 7vw, 130px) 80px;
}

.hero-copy { position: relative; z-index: 2; max-width: 680px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font: 500 13px/1 var(--font-mono);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.tick { width: 26px; height: 2px; background: var(--yellow); }

.title {
  margin: .22em 0 .2em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(4.4rem, 10.4vw, 11.6rem);
  line-height: .82;
  letter-spacing: -.005em;
  text-transform: uppercase;
}

.title span { display: block; }
.t1 { color: #f4f2ec; }

.t2 {
  position: relative;
  color: transparent;
  -webkit-text-stroke: 2px rgba(255, 201, 40, .5);
}

.t2::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  color: var(--yellow);
  -webkit-text-stroke: 0;
  text-shadow: 0 0 .35em rgba(255, 190, 40, .35);
  clip-path: inset(0 100% 0 0);
  animation: charge 2.6s cubic-bezier(.65, 0, .35, 1) .5s forwards, flicker 4.5s linear 3.4s 1;
}

.t2::before {
  content: "";
  position: absolute;
  top: 6%;
  bottom: 10%;
  left: 0;
  width: 3px;
  background: #fff7d6;
  box-shadow: 0 0 12px 4px rgba(255, 220, 120, .8), 0 0 40px 10px rgba(255, 190, 40, .4);
  border-radius: 2px;
  opacity: 0;
  animation: spark 2.6s cubic-bezier(.65, 0, .35, 1) .5s forwards;
}

@keyframes charge { to { clip-path: inset(0 0 0 0); } }

@keyframes spark {
  0% { left: 0; opacity: 1; }
  92% { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

@keyframes flicker {
  0%, 4%, 7%, 100% { opacity: 1; }
  5%, 6.5% { opacity: .35; }
}

.soon {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: .4rem 0 1.6rem;
  padding: 10px 18px 10px 14px;
  border: 1px solid rgba(255, 174, 26, .45);
  border-radius: 999px;
  background: rgba(255, 174, 26, .08);
  font: 600 14px/1 var(--font-mono);
  letter-spacing: .24em;
  text-transform: uppercase;
  color: #ffd27f;
}

.soon-led {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 10px var(--amber);
  animation: blink 1.1s steps(1, end) infinite;
}

@keyframes blink { 50% { opacity: .2; } }

.lede {
  max-width: 34em;
  font-size: clamp(1.05rem, 1.25vw, 1.22rem);
  color: var(--ink-2);
}

.lede strong { color: var(--ink); font-weight: 600; }

.plate-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px 30px;
  margin-top: 2rem;
}

/* brushed aluminum cert plate */
.ul-plate {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 14px 24px 14px 18px;
  border-radius: 6px;
  color: #1a1e23;
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, .07) 0 1px, transparent 1px 3px),
    linear-gradient(180deg, #eef1f3, #bfc5ca 55%, #dadee1);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, .9),
    inset 0 -1px 0 rgba(0, 0, 0, .25),
    0 14px 34px rgba(0, 0, 0, .45);
}

.ul-plate .screw { width: 7px; height: 7px; }
.ul-plate .screw:nth-of-type(1) { top: 6px; left: 6px; }
.ul-plate .screw:nth-of-type(2) { top: 6px; right: 6px; }
.ul-plate .screw:nth-of-type(3) { bottom: 6px; left: 6px; }
.ul-plate .screw:nth-of-type(4) { bottom: 6px; right: 6px; }

.ul-check {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #1a1e23;
  color: var(--green);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, .6), 0 1px 0 rgba(255, 255, 255, .7);
}
.ul-check svg { width: 20px; height: 20px; }

.ul-big {
  font: 800 38px/1 var(--font-display);
  letter-spacing: .02em;
  text-shadow: 0 1px 0 rgba(255, 255, 255, .7);
}

.ul-small {
  font: 600 11px/1.25 var(--font-mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #3a4048;
}

.hint {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font: 500 13px/1.5 var(--font-mono);
  letter-spacing: .06em;
  color: var(--ink-dim);
}
.hint em { color: var(--yellow); font-style: normal; }
.hint-arrow { display: inline-block; color: var(--yellow); animation: nudge 1.6s ease-in-out infinite; }

@keyframes nudge {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(6px); }
}

/* ============================================================
   THE ENCLOSURE  (1em = 1/44 of the enclosure width)
   ============================================================ */

.hero-panel {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 4.5em 0 0;
  font-size: calc(min(470px, 84vw) / 44);
  font-size: calc(min(470px, 84vw, (100svh - 240px) * .6667) / 44);
}

.enclosure {
  position: relative;
  width: 44em;
  height: 66em;
  margin-top: 4.2em;
}

/* dimension lines */
.dim {
  position: absolute;
  color: var(--dim-blue);
  pointer-events: none;
}

.dim span {
  position: absolute;
  padding: 0 .6em;
  background: var(--bg);
  font: 500 1.15em/1 var(--font-mono);
  letter-spacing: .06em;
  white-space: nowrap;
}

.dim .ar {
  position: absolute;
  background: currentColor;
}

.dim-h {
  left: 0;
  right: 0;
  top: -4.4em;
  height: 3.8em;
  border-left: 1px solid rgba(110, 185, 255, .45);
  border-right: 1px solid rgba(110, 185, 255, .45);
}
.dim-h::before { content: ""; position: absolute; left: 0; right: 0; top: 1.2em; border-top: 1px solid currentColor; }
.dim-h span { left: 50%; top: 1.2em; transform: translate(-50%, -50%); }
.dim-h .ar { top: calc(1.2em - .35em); width: 1.1em; height: .7em; }
.dim-h .ar-a { left: 0; clip-path: polygon(0 50%, 100% 0, 100% 100%); }
.dim-h .ar-b { right: 0; clip-path: polygon(100% 50%, 0 0, 0 100%); }

.dim-v {
  top: 0;
  bottom: 0;
  right: -4.6em;
  width: 3.8em;
  border-top: 1px solid rgba(110, 185, 255, .45);
  border-bottom: 1px solid rgba(110, 185, 255, .45);
}
.dim-v::before { content: ""; position: absolute; top: 0; bottom: 0; right: 1.2em; border-left: 1px solid currentColor; }
.dim-v span { right: 1.2em; top: 50%; transform: translate(50%, -50%) rotate(-90deg); }
.dim-v .ar { right: calc(1.2em - .35em); width: .7em; height: 1.1em; }
.dim-v .ar-a { top: 0; clip-path: polygon(50% 0, 100% 100%, 0 100%); }
.dim-v .ar-b { bottom: 0; clip-path: polygon(50% 100%, 100% 0, 0 0); }

/* wall-mount feet */
.mount {
  position: absolute;
  z-index: 0;
  width: 3.4em;
  height: 2.8em;
  border-radius: .5em;
  background:
    radial-gradient(circle at 50% 50%, #0b0d10 0 .45em, transparent .5em),
    linear-gradient(180deg, #c7cbce, #8e959a);
  box-shadow: 0 .3em .6em rgba(0, 0, 0, .5);
}
.mount-tl, .mount-tr { top: -1.9em; }
.mount-bl, .mount-br { bottom: -1.9em; }
.mount-tl, .mount-bl { left: 4em; }
.mount-tr, .mount-br { right: 4em; }

/* body */
.body {
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: .8em;
  background: linear-gradient(145deg, #dcdfe1, #b7bcc0 45%, #9aa0a5);
  box-shadow:
    0 0 0 .12em #80878c,
    inset 0 .12em .1em rgba(255, 255, 255, .7),
    0 2.6em 5em -1em rgba(0, 0, 0, .7),
    0 1em 2em rgba(0, 0, 0, .4);
  perspective: 230em;
  perspective-origin: 0% 50%;
}

.interior {
  position: absolute;
  inset: .5em;
  padding: 1.1em;
  border-radius: .45em;
  background: linear-gradient(90deg, #6f767b, #a2a8ac 7%, #a2a8ac 93%, #6f767b);
  box-shadow: inset 0 0 1.6em rgba(0, 0, 0, .6);
}

.backpanel {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: .25em;
  box-shadow: 0 .35em .9em rgba(0, 0, 0, .4);
}

/* flashlight */
.interior::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(circle 17em at var(--fx, 50%) var(--fy, 42%), transparent 0 35%, rgba(4, 7, 11, .5) 100%);
}

.close-door {
  position: absolute;
  z-index: 2;
  top: 1.8em;
  right: 1.8em;
  padding: .7em 1em;
  border: 0;
  border-radius: .4em;
  background: var(--yellow);
  color: #111;
  font: 700 1.2em/1 var(--font-display);
  letter-spacing: .1em;
  text-transform: uppercase;
  box-shadow: 0 .3em .8em rgba(0, 0, 0, .5);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
}
.is-open .close-door { opacity: 1; pointer-events: auto; transition-delay: .6s; }

/* wires inside */
.backpanel .wire {
  fill: none;
  stroke-width: 3.2;
  stroke-linecap: round;
  stroke-dasharray: 1 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 0s 1.3s;
}
.is-open .backpanel .wire {
  stroke-dashoffset: 0;
  transition: stroke-dashoffset .45s cubic-bezier(.3, .6, .3, 1) var(--d, 0s);
}
.backpanel .wires { filter: drop-shadow(0 .8px .5px rgba(0, 0, 0, .45)); }

.backpanel .io-led { fill: #3a2a12; }
.backpanel .io-led.lit { fill: #ffb21a; }
.backpanel .io-led.g.lit { fill: #4dff8f; }
.backpanel .k-ind { fill: #4a4a46; transition: fill .15s; }
.backpanel .rly-led { fill: #3a1512; }
.backpanel .cpu-run { fill: #4dff8f; animation: blink 1s steps(1, end) infinite; }
.backpanel .cpu-err { fill: #3a1512; }
.is-running .backpanel .k-ind { fill: #2bd96b; }
.is-running .backpanel .rly-led { fill: #ff5040; }
.is-estop .backpanel .cpu-err { fill: #ff3b30; animation: blink .5s steps(1, end) infinite; }
.is-estop .backpanel .cpu-run { fill: #1d3a26; animation: none; }

/* hinges */
.hinge {
  position: absolute;
  z-index: 3;
  left: -.4em;
  width: 1em;
  height: 5.4em;
  border-radius: .35em;
  background: linear-gradient(90deg, #7b8287, #e1e5e7 45%, #858c91);
  box-shadow: 0 .2em .3em rgba(0, 0, 0, .4);
}
.hinge-top { top: 8em; }
.hinge-bottom { bottom: 8em; }

/* door */
.door {
  position: absolute;
  inset: .5em;
  z-index: 2;
  transform-origin: 0 50%;
  transform-style: preserve-3d;
  transition: transform 1.25s cubic-bezier(.3, .75, .25, 1);
}
.is-open .door { transform: rotateY(-100deg); }

.door-front, .door-back {
  position: absolute;
  inset: 0;
  border-radius: .5em;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.door-front {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 2.6em 5.4em 2.6em;
  background:
    radial-gradient(120% 70% at 20% 0%, rgba(255, 255, 255, .35), transparent 60%),
    linear-gradient(165deg, #d6d9db, #c3c7ca 45%, #aeb3b7);
  box-shadow:
    inset 0 0 0 .1em rgba(255, 255, 255, .4),
    inset 0 -.25em .5em rgba(0, 0, 0, .18),
    .15em .15em .3em rgba(0, 0, 0, .25);
}

/* orange-peel powder coat */
.door-front::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: .22;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.1' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.is-open .door-front { pointer-events: none; }

.door-back {
  transform: rotateY(180deg);
  background: linear-gradient(90deg, #a3a9ad, #c9cdd0);
  cursor: pointer;
}

.gasket {
  position: absolute;
  inset: .9em;
  border: .55em solid #1c1f22;
  border-radius: .5em;
}

.pocket {
  position: absolute;
  left: 7em;
  right: 7em;
  top: 14em;
  height: 20em;
  border-radius: .4em;
  background: linear-gradient(180deg, #2a2e32, #1a1d20);
  box-shadow: 0 .3em .6em rgba(0, 0, 0, .4);
}

.print {
  position: absolute;
  left: 2em;
  right: 2em;
  top: -5em;
  height: 14em;
  padding: 1.2em;
  background: #f5f3ea;
  color: #1c3d6e;
  font: 600 1.1em/1.4 var(--font-mono);
  transform: rotate(-2deg);
  box-shadow: 0 .2em .4em rgba(0, 0, 0, .3);
}
.print b { display: block; font-size: 1.3em; }

.pocket-label {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 1.4em;
  text-align: center;
  font: 700 1.4em/1 var(--font-display);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #8a9096;
}

/* screws */
.screw {
  position: absolute;
  width: 1em;
  height: 1em;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #f6f8f9, #a1a8ae 55%, #5b6166);
  box-shadow: 0 .06em .12em rgba(0, 0, 0, .55);
}
.screw::after {
  content: "";
  position: absolute;
  left: 14%;
  right: 14%;
  top: 44%;
  height: 12%;
  border-radius: 1px;
  background: #474c51;
  transform: rotate(var(--r, 35deg));
}

/* nameplate */
.nameplate {
  position: relative;
  width: 30em;
  padding: 1.15em 1.6em 1.05em;
  border-radius: .35em;
  text-align: center;
  background: linear-gradient(180deg, #2a2d31, #111316);
  box-shadow: 0 .18em .35em rgba(0, 0, 0, .45), inset 0 .08em 0 rgba(255, 255, 255, .14);
}
.nameplate .screw:nth-of-type(1) { top: .5em; left: .5em; }
.nameplate .screw:nth-of-type(2) { top: .5em; right: .5em; }
.nameplate .screw:nth-of-type(3) { bottom: .5em; left: .5em; }
.nameplate .screw:nth-of-type(4) { bottom: .5em; right: .5em; }

.np-1 {
  display: block;
  font: 800 3.3em/1 var(--font-display);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #f3f2ee;
  text-shadow: 0 -.03em 0 rgba(0, 0, 0, .7);
}

.np-2 {
  display: block;
  margin-top: .6em;
  font: 600 .95em/1 var(--font-mono);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #a9b0b7;
}

/* ---------- HMI ---------- */

.hmi {
  position: relative;
  width: 32em;
  height: 20.6em;
  padding: 1.1em 1.1em 2.4em;
  border-radius: .9em;
  background: linear-gradient(180deg, #2e3338, #1a1d21);
  box-shadow:
    0 0 0 .14em #15181b,
    0 .3em .6em rgba(0, 0, 0, .45),
    inset 0 .1em 0 rgba(255, 255, 255, .14);
}

.hmi-screen {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: .3em;
  background: #04080c;
  box-shadow: inset 0 0 0 .1em #000;
}

.hmi-screen::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  opacity: .45;
  background: repeating-linear-gradient(0deg, rgba(0, 0, 0, .22) 0 1px, transparent 1px 3px);
}

.hmi-screen::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  background: linear-gradient(118deg, rgba(255, 255, 255, .11), rgba(255, 255, 255, .02) 34%, transparent 35%);
}

.hmi-brand {
  position: absolute;
  left: 1.3em;
  bottom: .75em;
  font: 700 .9em/1 var(--font-mono);
  letter-spacing: .22em;
  color: #7c848c;
}

.hmi-led {
  position: absolute;
  right: 1.5em;
  bottom: .9em;
  width: .65em;
  height: .65em;
  border-radius: 50%;
  background: #29e07a;
  box-shadow: 0 0 .6em #29e07a;
}

.scr { position: absolute; inset: 0; display: none; }
.hmi[data-screen="boot"] .scr-boot { display: block; }
.hmi[data-screen="main"] .scr-main { display: flex; }
.hmi[data-screen="off"] .scr-off { display: grid; }
.hmi[data-screen="estop"] .scr-estop { display: grid; }

.boot-log {
  margin: 0;
  padding: 1em 1.2em;
  font: 500 1.02em/1.48 var(--font-mono);
  color: #7dffa6;
  white-space: pre-wrap;
  text-shadow: 0 0 .5em rgba(80, 255, 140, .45);
}
.boot-log .ok { color: #b8ffcd; }
.boot-log .warn { color: #ffc04d; text-shadow: 0 0 .5em rgba(255, 180, 60, .5); }
.boot-log .cur { animation: blink .6s steps(1, end) infinite; }

.scr-main {
  flex-direction: column;
  background: radial-gradient(130% 90% at 50% 0%, #12293b, #061019 72%);
  color: #dff4ff;
  font-family: var(--font-mono);
}

.hmi-head {
  display: flex;
  align-items: center;
  gap: .8em;
  height: 2.4em;
  padding: 0 1em;
  flex: none;
  background: linear-gradient(#183449, #10263a);
  border-bottom: .08em solid rgba(110, 200, 255, .25);
  font-size: 1em;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hmi-title { flex: 1; color: #8fd8ff; }

.hmi-mode {
  padding: .22em .6em;
  border-radius: .25em;
  background: #1c6b40;
  color: #d4ffe2;
  font-weight: 600;
}
[data-mode="hand"] .hmi-mode { background: #1e4f8c; color: #dbeaff; }
[data-mode="off"] .hmi-mode { background: #3a4048; color: #c9d0d6; }

.hmi-clock { color: #9fb6c8; }

.hmi-body {
  position: relative;
  flex: 1;
  min-height: 0;
  padding: 1em 1.3em .4em;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hmi-big {
  font: 800 4.3em/.9 var(--font-display);
  letter-spacing: .02em;
  text-transform: uppercase;
  color: #fff;
  text-shadow: 0 0 .3em rgba(80, 200, 255, .55);
}

.hmi-sub {
  margin-top: .5em;
  font-size: 1em;
  letter-spacing: .02em;
  color: #86a9c0;
}

.hmi-status {
  display: flex;
  align-items: center;
  gap: .9em;
  margin-top: 1.1em;
}

.fan { width: 2.8em; height: 2.8em; flex: none; color: #4fd1ff; }
.fan-blades { transform-origin: 20px 20px; }

.hmi-progress { flex: 1; min-width: 0; }

.hmi-job {
  display: flex;
  justify-content: space-between;
  gap: .8em;
  margin-bottom: .4em;
  font-size: .95em;
  color: #bfe6ff;
}
.job-text { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.job-pct { flex: none; color: #4fd1ff; font-weight: 600; }

.bar {
  height: .8em;
  overflow: hidden;
  border-radius: .2em;
  background: #0b1d2b;
  box-shadow: inset 0 0 0 .08em rgba(110, 200, 255, .3);
}

.bar i {
  display: block;
  height: 100%;
  width: var(--p, 37%);
  background: repeating-linear-gradient(-45deg, #4fd1ff 0 .5em, #2a9fd0 .5em 1em);
  background-size: 1.414em 1.414em;
}
.is-running .bar i { animation: stripes .6s linear infinite; }

@keyframes stripes { to { background-position: 1.414em 0; } }

.rpm { flex: none; min-width: 4.8em; text-align: right; font-size: .95em; color: #9fb6c8; }
.rpm b { color: #fff; font-weight: 600; }

.hmi-msg { gap: .6em; }
.hmi-msg[hidden] { display: none; }
.hmi-home[hidden] { display: none; }

.msg-title {
  font: 800 2.4em/1 var(--font-display);
  letter-spacing: .04em;
  text-transform: uppercase;
  color: #4fd1ff;
}
.msg-body { font-size: 1.15em; line-height: 1.45; color: #e6f6ff; }
.msg-foot { font-size: .85em; color: #6d8ba0; letter-spacing: .08em; text-transform: uppercase; }

.hmi-keys {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .5em;
  padding: .5em .6em .6em;
  flex: none;
}

.fkey {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .55em;
  height: 2.4em;
  border: 0;
  border-radius: .3em;
  background: linear-gradient(#21425b, #152c40);
  color: #cfeeff;
  font: 600 .9em/1 var(--font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  box-shadow: inset 0 .08em 0 rgba(255, 255, 255, .14), 0 .12em 0 #06111a;
}
.fkey b { color: #4fd1ff; }
.fkey:hover { background: linear-gradient(#28506e, #1a3650); }
.fkey:active, .fkey.is-on { background: #2f6487; transform: translateY(.08em); box-shadow: inset 0 .08em .2em rgba(0, 0, 0, .4); }

.scr-off {
  place-content: center;
  text-align: center;
  background: #05080b;
  font-family: var(--font-mono);
}
.off-big { font: 800 3em/1 var(--font-display); text-transform: uppercase; color: #5b6670; letter-spacing: .04em; }
.off-sub { margin-top: .6em; color: #46515b; letter-spacing: .12em; text-transform: uppercase; font-size: .95em; }

.scr-estop {
  place-content: center;
  text-align: center;
  font-family: var(--font-mono);
  background: #3d0603;
  animation: es-flash 1s steps(1, end) infinite;
}
.es-tri { font-size: 3.2em; line-height: 1; color: #ffd21f; }
.es-big { margin-top: .1em; font: 800 4em/1 var(--font-display); text-transform: uppercase; color: #fff; letter-spacing: .03em; }
.es-sub { margin-top: .5em; color: #ffc9c4; letter-spacing: .1em; text-transform: uppercase; font-size: .95em; }

@keyframes es-flash { 50% { background: #8f0d06; } }

/* ---------- legend plates ---------- */

.legend {
  display: inline-block;
  min-width: 7em;
  padding: .45em .6em .4em;
  border-radius: .22em;
  background: linear-gradient(180deg, #282b2f, #121417);
  color: #eceae4;
  font: 700 .98em/1 var(--font-display);
  letter-spacing: .14em;
  text-align: center;
  text-transform: uppercase;
  white-space: nowrap;
  box-shadow: 0 .08em .16em rgba(0, 0, 0, .45);
}

/* ---------- pilot lights ---------- */

.lights {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  justify-items: center;
  width: 33em;
}

.pilot { display: flex; flex-direction: column; align-items: center; gap: .65em; }

.lens {
  position: relative;
  display: grid;
  place-items: center;
  width: 4.6em;
  height: 4.6em;
  border-radius: 50%;
  background: var(--chrome);
  box-shadow: 0 .22em .4em rgba(0, 0, 0, .45), inset 0 0 0 .1em rgba(0, 0, 0, .25);
}

.lens::before {
  content: "";
  width: 3.2em;
  height: 3.2em;
  border-radius: 50%;
  background: radial-gradient(circle at 38% 32%, rgba(255, 255, 255, .35) 0, var(--off) 30%, var(--off-d) 100%);
  box-shadow: inset 0 .18em .35em rgba(0, 0, 0, .65);
  transition: background .12s, box-shadow .12s;
}

.lens.on::before {
  background: radial-gradient(circle at 38% 32%, #fff 0, var(--on) 32%, var(--on-d) 100%);
  box-shadow:
    inset 0 0 .5em rgba(255, 255, 255, .55),
    0 0 1.1em .25em var(--glow),
    0 0 3.2em .8em var(--glow-2);
}

.lens.on.blink::before { animation: lamp 1.1s steps(1, end) infinite; }

@keyframes lamp {
  50% {
    background: radial-gradient(circle at 38% 32%, rgba(255, 255, 255, .35) 0, var(--off) 30%, var(--off-d) 100%);
    box-shadow: inset 0 .18em .35em rgba(0, 0, 0, .65);
  }
}

.c-white { --on: #fff3cf; --on-d: #d9b766; --off: #6e695c; --off-d: #2e2b24; --glow: rgba(255, 240, 200, .75); --glow-2: rgba(255, 230, 170, .25); }
.c-green { --on: #63ff9f; --on-d: #0ea54a; --off: #23503a; --off-d: #0a2316; --glow: rgba(70, 255, 150, .8); --glow-2: rgba(60, 255, 140, .28); }
.c-amber { --on: #ffc75a; --on-d: #dd7400; --off: #5c3e12; --off-d: #2a1b06; --glow: rgba(255, 175, 40, .85); --glow-2: rgba(255, 160, 30, .3); }
.c-red   { --on: #ff6a5c; --on-d: #c0140b; --off: #5a1b17; --off-d: #280807; --glow: rgba(255, 60, 40, .85); --glow-2: rgba(255, 40, 30, .32); }

/* ---------- operators ---------- */

.operators {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1.25fr;
  align-items: end;
  justify-items: center;
  width: 34em;
}

.op { display: flex; flex-direction: column; align-items: center; gap: .65em; }

.pb, .selector {
  position: relative;
  display: grid;
  place-items: center;
  width: 5.4em;
  height: 5.4em;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--chrome);
  box-shadow: 0 .26em .45em rgba(0, 0, 0, .5), inset 0 0 0 .1em rgba(0, 0, 0, .25);
}

.pb-cap {
  display: grid;
  place-items: center;
  width: 3.9em;
  height: 3.9em;
  border-radius: 50%;
  box-shadow: inset 0 -.25em .4em rgba(0, 0, 0, .35), inset 0 .15em .2em rgba(255, 255, 255, .45), 0 .12em .2em rgba(0, 0, 0, .5);
  transition: transform .08s, box-shadow .08s, filter .08s;
}

.pb-cap span {
  font: 700 1.9em/1 var(--font-body);
  color: rgba(255, 255, 255, .92);
  text-shadow: 0 -.04em 0 rgba(0, 0, 0, .3);
}

.pb-start .pb-cap { background: radial-gradient(circle at 40% 30%, #8dffbd, #1dbb5d 50%, #0b6b33); }
.pb-stop .pb-cap { background: radial-gradient(circle at 40% 30%, #ff9d93, #e0281c 50%, #7d0a04); }

.pb:active .pb-cap, .pb.pressed .pb-cap {
  transform: scale(.92);
  filter: brightness(.9);
  box-shadow: inset 0 .2em .45em rgba(0, 0, 0, .5);
}

/* selector switch */
.op-sel { gap: .4em; }

.sel-marks {
  display: flex;
  gap: .55em;
  font: 700 .82em/1 var(--font-display);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #6c7379;
}
.sel-marks b { font-weight: 700; transition: color .15s; }
[data-mode="hand"] .sel-marks [data-pos="hand"],
[data-mode="off"] .sel-marks [data-pos="off"],
[data-mode="auto"] .sel-marks [data-pos="auto"] { color: #111; }

.sel-knob {
  position: relative;
  width: 4.1em;
  height: 4.1em;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 30%, #454b52, #121417 70%);
  transform: rotate(var(--a, 45deg));
  transition: transform .28s cubic-bezier(.3, 1.6, .5, 1);
}
[data-mode="hand"] .sel-knob { --a: -45deg; }
[data-mode="off"] .sel-knob { --a: 0deg; }

.sel-knob::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -.25em;
  bottom: -.25em;
  width: 1.35em;
  margin-left: -.675em;
  border-radius: .65em;
  background: linear-gradient(90deg, #15181b, #474e55 50%, #15181b);
  box-shadow: 0 .18em .3em rgba(0, 0, 0, .55);
}

.sel-knob::after {
  content: "";
  position: absolute;
  left: 50%;
  top: .05em;
  width: .28em;
  height: 1.5em;
  margin-left: -.14em;
  border-radius: .1em;
  background: #f4f3ee;
}

/* e-stop */
.op-estop { align-self: end; }

.estop {
  position: relative;
  width: 8.4em;
  height: 8.4em;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: none;
  filter: drop-shadow(0 .3em .4em rgba(0, 0, 0, .45));
}
.estop svg { display: block; width: 100%; height: 100%; overflow: visible; }

.es-text {
  font: 700 9.5px var(--font-display);
  letter-spacing: 1.6px;
  fill: #16130a;
}

.es-head {
  transform-box: fill-box;
  transform-origin: center;
  transition: transform .12s;
}
.estop:active .es-head { transform: scale(.93); }
.estop[aria-pressed="true"] .es-head { transform: scale(.88); }
.estop.twist .es-head { animation: twist .5s cubic-bezier(.3, .7, .3, 1); }

@keyframes twist {
  0% { transform: scale(.88) rotate(0); }
  55% { transform: scale(.88) rotate(48deg); }
  100% { transform: scale(1) rotate(0); }
}

/* ---------- door labels ---------- */

.labels { display: flex; gap: 1.3em; width: 32em; }

.dataplate {
  flex: 1.5;
  padding: .75em 1em .8em;
  border-radius: .3em;
  color: #23282d;
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, .08) 0 1px, transparent 1px 3px),
    linear-gradient(180deg, #e9ecee, #b8bec3 60%, #d3d7da);
  box-shadow: inset 0 .06em 0 rgba(255, 255, 255, .85), 0 .1em .2em rgba(0, 0, 0, .3);
  font-family: var(--font-mono);
}

.dp-head {
  margin-bottom: .45em;
  padding-bottom: .35em;
  border-bottom: .08em solid rgba(0, 0, 0, .3);
  font: 700 .95em/1 var(--font-display);
  letter-spacing: .16em;
  text-transform: uppercase;
}

.dataplate dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .18em .9em;
  margin: 0;
  font-size: .78em;
  line-height: 1.15;
  text-transform: uppercase;
}
.dataplate dt { color: #59616a; }
.dataplate dd { margin: 0; font-weight: 600; }

.notice {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: .25em;
  background: #f7f6f1;
  box-shadow: 0 .1em .2em rgba(0, 0, 0, .3);
}

.notice-head {
  padding: .4em .7em;
  background: #1d5fb4;
  color: #fff;
  font: italic 800 1.25em/1 var(--font-display);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.notice-body {
  flex: 1;
  display: flex;
  align-items: center;
  padding: .5em .75em;
  color: #111;
  font: 700 1.05em/1.15 var(--font-display);
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* latch */
.latch {
  position: absolute;
  right: 1.05em;
  top: 50%;
  width: 3em;
  height: 10.5em;
  margin-top: -5.25em;
  padding: 0;
  border: 0;
  border-radius: .55em;
  background: linear-gradient(90deg, #191c1f, #3c4247 50%, #191c1f);
  box-shadow: 0 .22em .45em rgba(0, 0, 0, .5), inset 0 .08em 0 rgba(255, 255, 255, .12);
}

.latch::after {
  content: "";
  position: absolute;
  inset: -.7em;
  border: .18em solid rgba(255, 201, 40, .85);
  border-radius: .9em;
  animation: ping 2.2s ease-out infinite;
  pointer-events: none;
}
.door-used .latch::after { display: none; }

@keyframes ping {
  0% { opacity: .9; transform: scale(.92); }
  70%, 100% { opacity: 0; transform: scale(1.18); }
}

.latch-lever {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 1.7em;
  height: 7.8em;
  margin: -3.9em 0 0 -.85em;
  border-radius: .85em;
  background: linear-gradient(90deg, #22262a, #5f666d 45%, #22262a);
  box-shadow: 0 .3em .5em rgba(0, 0, 0, .55);
  transition: transform .35s cubic-bezier(.3, 1.4, .5, 1);
}
.latch-lever::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: .9em;
  height: .9em;
  margin: -.45em 0 0 -.45em;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #c9ced2, #5d646a);
}
.is-unlatched .latch-lever { transform: rotate(90deg); }

/* conduit at the bottom */
.conduits {
  position: absolute;
  z-index: 0;
  left: 0;
  right: 0;
  top: 100%;
  height: 8em;
  display: flex;
  justify-content: center;
  gap: 7em;
  pointer-events: none;
}

.conduits i {
  position: relative;
  width: 2.8em;
  height: 100%;
  background: repeating-linear-gradient(180deg, #30353a 0 .45em, #16191c .45em .85em);
  -webkit-mask-image: linear-gradient(#000 35%, transparent);
  mask-image: linear-gradient(#000 35%, transparent);
}
.conduits i:nth-child(2) { width: 3.6em; }
.conduits i::before {
  content: "";
  position: absolute;
  left: -.55em;
  right: -.55em;
  top: 0;
  height: 1.6em;
  border-radius: 0 0 .25em .25em;
  background: linear-gradient(90deg, #6e757b, #d6dadd 45%, #6e757b);
}

/* drawing view title */
.view-title {
  display: flex;
  align-items: center;
  gap: 1.1em;
  margin-top: 6.4em;
  font-family: var(--font-mono);
  color: var(--cad-text);
}

.vt-num {
  display: grid;
  place-items: center;
  width: 3.4em;
  height: 3.4em;
  border: 1px solid var(--dim-blue);
  border-radius: 50%;
  color: var(--dim-blue);
  font: 600 1.3em/1 var(--font-mono);
}

.vt-text {
  padding-bottom: .35em;
  border-bottom: 2px solid var(--dim-blue);
  font: 700 1.9em/1 var(--font-display);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #d6e6f7;
}

.vt-text small {
  display: block;
  margin-top: .45em;
  font: 500 .55em/1 var(--font-mono);
  letter-spacing: .16em;
  color: var(--cad-text);
}

/* panel-wide states */
.enclosure.shake { animation: shake .45s cubic-bezier(.36, .07, .19, .97); }

@keyframes shake {
  10%, 90% { transform: translateX(-.15em); }
  20%, 80% { transform: translateX(.3em); }
  30%, 50%, 70% { transform: translateX(-.5em); }
  40%, 60% { transform: translateX(.5em); }
}

/* ============================================================
   MARKER TAPES
   ============================================================ */

.tapes {
  position: relative;
  height: clamp(170px, 19vw, 250px);
  overflow: hidden;
}

.tape {
  position: absolute;
  left: -6%;
  right: -6%;
  top: 50%;
  display: flex;
  align-items: center;
  height: clamp(46px, 4.6vw, 64px);
  overflow: hidden;
  box-shadow: 0 14px 34px rgba(0, 0, 0, .5);
}

.tape-a {
  z-index: 2;
  background: var(--yellow);
  color: #111;
  transform: translateY(-50%) rotate(-3deg);
}

.tape-a::before, .tape-a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 6px;
  background: repeating-linear-gradient(-45deg, #111 0 9px, transparent 9px 18px);
}
.tape-a::before { top: 0; }
.tape-a::after { bottom: 0; }

.tape-b {
  z-index: 1;
  background: #15181c;
  color: var(--yellow);
  border-top: 1px solid #2c3238;
  border-bottom: 1px solid #2c3238;
  transform: translateY(-50%) rotate(2.6deg);
}

.tape-track {
  display: flex;
  flex: none;
  align-items: center;
  white-space: nowrap;
  font: 800 clamp(1.15rem, 1.9vw, 1.65rem)/1 var(--font-display);
  letter-spacing: .08em;
  text-transform: uppercase;
  animation: marquee 42s linear infinite;
}
.tape-b .tape-track { animation-duration: 52s; animation-direction: reverse; }
.tape-track span, .tape-track b { margin-right: 1.4em; }
.tape-track .dup { display: contents; }
.tape-track b { font-size: .7em; opacity: .8; }

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

/* ============================================================
   LADDER LOGIC / SHEET 02
   ============================================================ */

.logic { position: relative; padding: clamp(80px, 11vw, 150px) clamp(48px, 7vw, 130px) clamp(70px, 9vw, 120px); }
.logic-inner { max-width: 1080px; margin: 0 auto; }

.sheet-tag {
  font: 500 13px/1 var(--font-mono);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--yellow);
}

.logic h2 {
  max-width: 13em;
  margin: .35em 0 .3em;
  font: 800 clamp(2.6rem, 6vw, 5.4rem)/.9 var(--font-display);
  text-transform: uppercase;
  letter-spacing: .005em;
}

.logic-lede { max-width: 36em; font-size: clamp(1.05rem, 1.25vw, 1.2rem); color: var(--ink-2); }

.plc-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 2.8rem;
  padding: 12px 18px;
  border: 1px solid rgba(160, 196, 235, .2);
  border-bottom: 0;
  border-radius: 8px 8px 0 0;
  background: rgba(16, 23, 32, .85);
  font: 500 12px/1 var(--font-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #8fa3b7;
}

.plc-run { display: inline-flex; align-items: center; gap: 8px; color: var(--green); font-weight: 600; }
.plc-run i { width: 9px; height: 9px; background: var(--green); box-shadow: 0 0 8px var(--green); animation: blink 1s steps(1, end) infinite; }
.plc-bar em { font-style: normal; color: var(--amber); }
.plc-scan { margin-left: auto; color: #6f8396; }

.ladder {
  --rl: 74px;
  --rr: 28px;
  --tag-h: 34px;
  --el-w: 132px;
  position: relative;
  padding: 26px 0 18px;
  border: 1px solid rgba(160, 196, 235, .2);
  border-radius: 0 0 8px 8px;
  background: rgba(7, 11, 16, .82);
}

.rail {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 3px;
  background: #2b3644;
  transition: background .3s, box-shadow .3s;
}
.rail-l { left: var(--rl); }
.rail-r { right: var(--rr); }
.rail-l span { right: calc(100% + 8px); }
.rail-r span { left: calc(100% + 6px); }
.ladder.live .rail { background: var(--green); box-shadow: 0 0 12px rgba(41, 224, 122, .55); }

.rail span {
  position: absolute;
  top: 8px;
  font: 600 11px/1 var(--font-mono);
  letter-spacing: .1em;
  color: #6f8396;
}

.rung { position: relative; padding: 16px 0 18px; }
.rung + .rung { border-top: 1px dashed rgba(160, 196, 235, .08); }

.rung-cmt {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin: 0 calc(var(--rr) + 14px) 6px calc(var(--rl) + 18px);
  font: italic 400 13px/1.4 var(--font-mono);
  color: #58b98a;
}
.rung-cmt span { flex: 1; }

.rung-badge {
  flex: none;
  padding: 3px 8px;
  border-radius: 3px;
  font: normal 600 11px/1 var(--font-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity .3s;
}
.rung-true .rung-badge { opacity: 1; background: rgba(41, 224, 122, .14); color: var(--green); }
.rung-true .rung-badge::after { content: "True"; }
.rung-pending .rung-badge { opacity: 1; background: rgba(255, 174, 26, .14); color: var(--amber); animation: blink 1.2s steps(1, end) infinite; }
.rung-pending .rung-badge::after { content: "Pending"; }

.rung-line {
  position: relative;
  display: flex;
  align-items: flex-start;
  margin: 0 var(--rr) 0 var(--rl);
}

.rung-no {
  position: absolute;
  right: 100%;
  top: calc(var(--tag-h) + 10px);
  width: var(--rl);
  text-align: center;
  font: 500 12px/1 var(--font-mono);
  color: #6f8396;
}

.w {
  position: relative;
  flex: 0 0 18px;
  height: 2px;
  margin-top: calc(var(--tag-h) + 17px);
  background: #34404e;
}
.w.grow { flex: 1 1 auto; min-width: 18px; }
.w.end { flex-basis: 14px; }

.w::after {
  content: "";
  position: absolute;
  inset: -1px 0;
  background: var(--green);
  box-shadow: 0 0 8px rgba(41, 224, 122, .7);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .22s linear;
}
.w.on::after { transform: scaleX(1); }

.flowing .w.on::after, .flowing .el.on .lead {
  background: repeating-linear-gradient(90deg, var(--green) 0 10px, #b8ffd4 10px 14px, var(--green) 14px 24px);
  background-size: 24px 100%;
  animation: flow .7s linear infinite;
}

@keyframes flow { to { background-position: 24px 0; } }

.el {
  flex: 0 0 var(--el-w);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.tag {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  height: var(--tag-h);
  padding: 0 6px 4px;
  text-align: center;
  font: 700 14px/1.1 var(--font-display);
  letter-spacing: .06em;
  text-transform: uppercase;
  color: #b9c6d2;
  transition: color .2s;
}

.sym-row { display: flex; align-items: center; width: 100%; height: 36px; }
.lead { flex: 1; height: 2px; background: #34404e; transition: background .2s; }
.sym { width: 44px; height: 36px; flex: none; color: #5d6d7e; transition: color .2s; }

.addr {
  margin-top: 4px;
  font: 500 11px/1 var(--font-mono);
  letter-spacing: .06em;
  color: #5f7184;
}

.el.on .tag { color: #fff; }
.el.on .lead { background: var(--green); box-shadow: 0 0 8px rgba(41, 224, 122, .7); }
.el.on .sym { --hl: rgba(41, 224, 122, .22); color: var(--green); filter: drop-shadow(0 0 4px rgba(41, 224, 122, .7)); }

.el.blocked .lead:first-child { background: var(--green); box-shadow: 0 0 8px rgba(41, 224, 122, .7); }
.el.blocked .sym { color: var(--amber); animation: blink 1.2s steps(1, end) infinite; }
.el.blocked .tag { color: var(--amber); }

.rung-pending .coil .sym { color: rgba(255, 174, 26, .55); }

.rung-end .rung-line { align-items: center; }
.rung-end .rung-no { top: 50%; transform: translateY(-50%); }
.rung-end .w { margin-top: 0; }
.end-tag {
  padding: 0 14px;
  font: 600 12px/1 var(--font-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #6f8396;
}

/* ============================================================
   FOOTER / TITLE BLOCK
   ============================================================ */

.footer { padding: 0 clamp(48px, 7vw, 130px) clamp(56px, 7vw, 90px); }
.footer-inner { max-width: 1080px; margin: 0 auto; }

.revs {
  width: min(100%, 560px);
  margin-left: auto;
  border-collapse: collapse;
  font: 500 12px/1.2 var(--font-mono);
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.revs th, .revs td { padding: 8px 10px; border: 1px solid rgba(160, 196, 235, .28); text-align: left; }
.revs th { color: var(--cad-text); font-weight: 500; font-size: 10px; letter-spacing: .16em; }
.revs td:first-child, .revs th:first-child { width: 48px; text-align: center; }
.rev-next td { color: var(--ink-dim); }
.rev-next td:nth-child(3) { color: var(--amber); }

.titleblock {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border: 1px solid rgba(160, 196, 235, .4);
  border-top: 0;
  background: rgba(7, 11, 16, .7);
}

.tb {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  min-height: 62px;
  padding: 10px 14px;
  border-right: 1px solid rgba(160, 196, 235, .22);
  border-top: 1px solid rgba(160, 196, 235, .22);
}

.tb label {
  font: 500 10px/1 var(--font-mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cad-text);
}

.tb span {
  font: 700 18px/1.1 var(--font-display);
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink);
}

.tb-logo { grid-column: 1 / 3; grid-row: 1 / 3; align-items: flex-start; }
.tb-logo .tb-mark { font: 800 34px/1 var(--font-display); letter-spacing: .1em; color: var(--yellow); }
.tb-logo small { font: 500 11px/1.3 var(--font-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--ink-dim); }
.tb-title { grid-column: 3 / 7; }
.tb-title span { font-size: 24px; }
.tb-status { grid-column: 3 / 5; }
.tb-status span { color: var(--amber); }
.tb-drawn { grid-column: 1 / 3; }
.tb:nth-child(6n) { border-right: 0; }
.tb-title, .tb-dwg { border-right: 0; }

.copyright {
  margin-top: 22px;
  font: 500 12px/1.4 var(--font-mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1100px) {
  .topbar-meta .hide-sm { display: none; }
}

@media (max-width: 980px) {
  :root { --fi: 6px; --fb: 10px; }
  .zones { font-size: 8px; }
  .zones-top span:nth-child(n+5), .zones-bottom span:nth-child(n+5) { display: none; }
  .zones-left span:nth-child(n+4), .zones-right span:nth-child(n+4) { display: none; }

  .topbar { top: calc(var(--fi) + var(--fb) + 12px); left: calc(var(--fi) + var(--fb) + 12px); right: calc(var(--fi) + var(--fb) + 12px); }
  .topbar-meta, .coords { display: none; }
  .mark { font-size: 16px; }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
    gap: 48px;
    min-height: 0;
    padding: 96px 28px 56px;
  }
  .hero-copy { width: 100%; max-width: 620px; }
  .title { font-size: clamp(4.4rem, 23vw, 9rem); }
  .hint-arrow { transform: rotate(90deg); animation-name: nudge-down; }

  .hero-panel {
    padding: 0;
    font-size: calc(min(440px, 100vw - 56px) / 44);
  }
  .dim-v { display: none; }

  .tapes { height: 150px; }

  .logic { padding: 80px 26px 64px; }
  .footer { padding: 0 26px 56px; }

  .ladder { --rl: 46px; --rr: 12px; --el-w: 96px; --tag-h: 32px; }
  .tag { font-size: 12.5px; padding: 0 3px 4px; }
  .rung-cmt { font-size: 12px; margin-left: calc(var(--rl) + 10px); flex-wrap: wrap; gap: 6px 12px; }
  .rung-no { font-size: 10px; }
  .plc-scan { margin-left: 0; }

  .titleblock { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tb, .tb-logo, .tb-title, .tb-status, .tb-drawn { grid-column: auto; grid-row: auto; border-right: 1px solid rgba(160, 196, 235, .22); }
  .tb-logo, .tb-title, .tb-status { grid-column: 1 / -1; border-right: 0; }
  .tb:nth-child(6n) { border-right: 1px solid rgba(160, 196, 235, .22); }
  .tb-cert, .tb-dwg { border-right: 1px solid rgba(160, 196, 235, .22); }
  .tb-dwg, .tb-drawn ~ .tb:nth-child(odd) { border-right: 0; }
}

@keyframes nudge-down {
  0%, 100% { transform: rotate(90deg) translateX(0); }
  50% { transform: rotate(90deg) translateX(5px); }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  .hero { padding: 88px 20px 48px; }
  .logic { padding: 72px 18px 56px; }
  .footer { padding: 0 18px 48px; }
  .ladder { --rl: 38px; --rr: 8px; --el-w: 82px; }
  .tag { font-size: 11.5px; }
  .sym { width: 38px; }
  .addr { font-size: 10px; }
  .rung-cmt { font-size: 11px; }
  .plc-bar { gap: 8px 14px; padding: 10px 12px; font-size: 10.5px; }
  .ul-big { font-size: 32px; }
  .revs { font-size: 10.5px; }
  .revs th, .revs td { padding: 7px 6px; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
  .t2::after { clip-path: none; }
  .t2::before { display: none; }
  .tape-track { animation: none !important; }
  .door { transition-duration: .35s; }
  .lens.on.blink::before { animation: none !important; }
}