/* ════════════════════════════════════════════════════════════════════
   OMNILOOP — "THE CONTROL PLANE" DESIGN SYSTEM
   Register: brand · Strategy: committed→drenched safety orange
   References: KUKA industrial equipment · Festo datasheets · scope UIs
   Type: Big Shoulders (display) · Archivo (body) · Martian Mono (data)
   ════════════════════════════════════════════════════════════════════ */

:root {
  /* Brand core */
  --safety:        oklch(0.6584 0.2178 36.5);   /* ~#ff4d00 machine orange */
  --safety-press:  oklch(0.58 0.21 36.5);
  --safety-soft:   oklch(0.6584 0.2178 36.5 / 0.12);
  --safety-text:   oklch(0.5 0.185 36.5);        /* darkened for text on paper (≥4.5:1) */
  --ink:           oklch(0.205 0.008 60);        /* warm near-black */
  --ink-2:         oklch(0.26 0.009 60);
  --paper:         oklch(0.9634 0.0025 90);      /* neutral technical white */
  --paper-2:       oklch(0.9269 0.004 80);

  /* Semantic states */
  --estop-red:     oklch(0.55 0.21 27);          /* ~#d92d20 */
  --estop-red-dk:  oklch(0.44 0.18 27);
  --run-green:     oklch(0.62 0.16 155);
  --warn-amber:    oklch(0.72 0.16 75);

  /* Per-surface semantics (day shift defaults) */
  --bg:        var(--paper);
  --bg-elev:   oklch(0.99 0.001 90);
  --tx:        var(--ink);
  --tx-2:      oklch(0.41 0.012 60);
  --line:      oklch(0.205 0.008 60 / 0.18);
  --line-hard: var(--ink);

  /* Type */
  --font-display: "Big Shoulders", "Arial Narrow", sans-serif;
  --font-body:    "Archivo", "Segoe UI", system-ui, sans-serif;
  --font-mono:    "Martian Mono", "Consolas", monospace;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --t-fast: 160ms var(--ease-out);
  --t-med:  320ms var(--ease-out);

  /* Z scale */
  --z-scope: 1;
  --z-sticky: 40;
  --z-banner: 50;

  --max-w: 1200px;
  --statusbar-h: 58px;
  color-scheme: light;
}

/* Night shift */
body.night {
  --safety-text: var(--safety);
  --bg:        oklch(0.185 0.008 55);
  --bg-elev:   oklch(0.235 0.01 55);
  --tx:        oklch(0.945 0.004 80);
  --tx-2:      oklch(0.72 0.012 70);
  --line:      oklch(0.945 0.004 80 / 0.16);
  --line-hard: oklch(0.945 0.004 80);
  color-scheme: dark;
}

/* ── Reset & base ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--statusbar-h) + 16px); }

body {
  background: var(--bg);
  color: var(--tx);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--safety); color: var(--ink); }

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; }
b, strong { font-weight: 700; }
.font-mono { font-family: var(--font-mono); }

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

.container { max-width: var(--max-w); margin-inline: auto; padding-inline: clamp(20px, 4vw, 48px); }

/* ── Cycle progress (scroll) ──────────────────────────────────────── */
.cycle-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px;
  background: transparent; z-index: calc(var(--z-sticky) + 1);
  pointer-events: none;
}
.cycle-progress-fill {
  height: 100%; width: 0%;
  background: var(--safety);
}

/* ── Status bar ───────────────────────────────────────────────────── */
.statusbar {
  position: sticky; top: 0; z-index: var(--z-sticky);
  background: var(--bg);
  border-bottom: 2px solid var(--line-hard);
}
.statusbar-inner {
  max-width: var(--max-w); margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 48px);
  height: var(--statusbar-h);
  display: flex; align-items: center; gap: 24px;
}
.wordmark {
  display: flex; align-items: baseline; gap: 10px;
  text-decoration: none; flex-shrink: 0;
}
.wordmark-glyph { width: 22px; height: 22px; align-self: center; color: var(--safety); }
.wordmark-text {
  font-family: var(--font-display);
  font-weight: 800; font-size: 1.45rem; letter-spacing: 0.02em;
}
.wordmark-doc {
  font-family: var(--font-mono); font-size: 0.6rem; color: var(--tx-2);
  letter-spacing: 0.04em;
}
.nav-links { display: flex; gap: 4px; margin-inline: auto; }
.nav-links a {
  text-decoration: none; font-weight: 600; font-size: 0.9rem;
  padding: 6px 12px; color: var(--tx-2); white-space: nowrap;
  transition: color var(--t-fast), background var(--t-fast);
}
.nav-links a:hover { color: var(--tx); background: var(--safety-soft); }

.statusbar-right { display: flex; align-items: center; gap: 14px; margin-left: auto; }

.live-readout { display: flex; align-items: center; gap: 8px; }
.readout-led {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--run-green);
  box-shadow: 0 0 0 0 var(--run-green);
  animation: led-pulse 2s infinite;
}
body[data-halted="true"] .readout-led { background: var(--estop-red); animation: none; }
@keyframes led-pulse {
  0%   { box-shadow: 0 0 0 0 oklch(0.62 0.16 155 / 0.5); }
  70%  { box-shadow: 0 0 0 7px oklch(0.62 0.16 155 / 0); }
  100% { box-shadow: 0 0 0 0 oklch(0.62 0.16 155 / 0); }
}
.readout-text { font-size: 0.66rem; color: var(--tx-2); min-width: 11ch; }

/* Day/Night shift switch */
.theme-toggle {
  display: flex; border: 2px solid var(--line-hard);
  background: transparent; cursor: pointer; padding: 0;
}
.shift-label {
  font-size: 0.62rem; padding: 5px 9px; color: var(--tx-2);
  letter-spacing: 0.06em;
}
body:not(.night) .shift-label[data-shift="day"],
body.night .shift-label[data-shift="night"] {
  background: var(--ink); color: var(--paper);
}
body.night .shift-label[data-shift="night"] { background: var(--paper); color: var(--ink); }

/* ── Buttons ──────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-body); font-weight: 700; font-size: 0.95rem;
  white-space: nowrap;
  padding: 13px 26px; border: 2px solid var(--line-hard);
  text-decoration: none; cursor: pointer;
  transition: transform var(--t-fast), background var(--t-fast), color var(--t-fast), box-shadow var(--t-fast);
  background: transparent; color: var(--tx);
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--line-hard); }
.btn:active { transform: translate(0, 0); box-shadow: 0 0 0 var(--line-hard); }

.btn-ink { background: var(--ink); color: var(--paper); border-color: var(--ink); }
body.night .btn-ink { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.btn-ink:hover { box-shadow: 4px 4px 0 var(--safety); }

.btn-safety { background: var(--safety); color: var(--ink); border-color: var(--ink); }
.btn-safety:hover { box-shadow: 4px 4px 0 var(--line-hard); }

.btn-ghost-ink { background: transparent; }

.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-full { width: 100%; }

/* Mobile nav toggle */
.mobile-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 8px;
}
.mobile-toggle span { width: 22px; height: 2px; background: var(--tx); transition: var(--t-fast); }
.mobile-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.open span:nth-child(2) { opacity: 0; }
.mobile-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── HERO ─────────────────────────────────────────────────────────── */
.hero {
  background: var(--safety);
  color: var(--ink);
  position: relative;
}
body.night .hero { background: var(--bg); color: var(--tx); }

.hero-inner {
  max-width: var(--max-w); margin-inline: auto;
  padding: clamp(48px, 8vh, 96px) clamp(20px, 4vw, 48px) clamp(24px, 4vh, 48px);
  display: grid; grid-template-columns: 1fr auto; gap: clamp(32px, 6vw, 96px);
  align-items: center;
}

.hero-spec {
  font-size: clamp(0.58rem, 1.2vw, 0.72rem);
  border-top: 2px solid currentColor; border-bottom: 2px solid currentColor;
  padding: 8px 0; margin-bottom: clamp(24px, 4vh, 44px);
  letter-spacing: 0.02em;
}
body.night .hero-spec { color: var(--safety); border-color: var(--safety); }

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3.4rem, 8.5vw, 6rem);
  line-height: 0.92;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  text-wrap: balance;
}
.hero-title .line { display: block; }
.hero-title em { font-style: normal; color: var(--paper); }
body.night .hero-title em { color: var(--safety); }

.hero-lead {
  max-width: 54ch; margin-top: clamp(20px, 3vh, 32px);
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  line-height: 1.55;
  text-wrap: pretty;
}
.hero-actions { display: flex; gap: 14px; margin-top: clamp(26px, 4vh, 40px); flex-wrap: wrap; }
.hero .btn-ghost-ink { border-color: var(--ink); }
body.night .hero .btn-ghost-ink { border-color: var(--line-hard); }

/* E-STOP — the signature control */
.hero-control { display: flex; justify-content: center; }
.estop-plate {
  display: flex; flex-direction: column; align-items: center; justify-content: space-between;
  background: var(--paper);
  border: 2px solid var(--ink);
  padding: 24px;
  box-shadow: 8px 8px 0 oklch(0 0 0 / 0.25);
  width: 250px;
  height: 250px;
}
body.night .estop-plate { background: var(--bg-elev); border-color: var(--line-hard); box-shadow: 8px 8px 0 oklch(0 0 0 / 0.45); }
.estop-plate-label {
  font-size: 0.62rem; letter-spacing: 0.14em; color: var(--ink);
  border-bottom: 2px solid var(--safety); padding-bottom: 6px;
}
body.night .estop-plate-label { color: var(--tx); }

.estop {
  position: relative; width: 132px; height: 132px;
  border: none; background: none; cursor: pointer;
  border-radius: 50%;
}
.estop-ring {
  position: absolute; inset: 0; border-radius: 50%;
  background: repeating-conic-gradient(var(--warn-amber) 0deg 18deg, var(--ink) 18deg 36deg);
  border: 3px solid var(--ink);
}
.estop-cap {
  position: absolute; inset: 16px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle at 34% 30%, oklch(0.68 0.21 27), var(--estop-red) 55%, var(--estop-red-dk));
  border: 3px solid var(--estop-red-dk);
  box-shadow:
    0 8px 0 var(--estop-red-dk),
    0 14px 22px oklch(0 0 0 / 0.35);
  transform: translateY(-6px);
  transition: transform 90ms ease-out, box-shadow 90ms ease-out;
}
.estop:hover .estop-cap { filter: brightness(1.06); }
.estop:active .estop-cap,
body[data-halted="true"] .estop-cap {
  transform: translateY(2px);
  box-shadow: 0 1px 0 var(--estop-red-dk), 0 3px 8px oklch(0 0 0 / 0.3);
}
.estop-cap-text {
  color: oklch(0.97 0.01 27); font-weight: 700; font-size: 0.9rem;
  letter-spacing: 0.1em; text-shadow: 0 1px 2px oklch(0 0 0 / 0.4);
}
body[data-halted="true"] .estop-cap-text::after { content: ""; }
.estop-hint {
  font-size: 0.56rem; text-align: center; line-height: 1.7;
  color: var(--tx-2); letter-spacing: 0.05em;
}
.estop-plate .estop-hint { color: oklch(0.41 0.012 60); }
body.night .estop-plate .estop-hint { color: var(--tx-2); }

/* Hero scope strip */
.hero-scope {
  border-top: 2px solid var(--ink);
  background: oklch(0.205 0.008 60 / 0.08);
  position: relative; z-index: var(--z-scope);
}
body.night .hero-scope { border-color: var(--safety); background: oklch(0 0 0 / 0.25); }
.scope-meta {
  display: flex; justify-content: space-between;
  max-width: var(--max-w); margin-inline: auto;
  padding: 8px clamp(20px, 4vw, 48px) 0;
  font-size: 0.6rem; letter-spacing: 0.08em;
}
#hero-scope { width: 100%; height: 110px; }

/* Halt banner */
.halt-banner {
  display: none;
  position: sticky; top: var(--statusbar-h); z-index: var(--z-banner);
  background: var(--estop-red); color: oklch(0.97 0.01 27);
  font-size: 0.68rem; letter-spacing: 0.04em;
  padding: 9px clamp(20px, 4vw, 48px);
  text-align: center;
}
body[data-halted="true"] .halt-banner { display: block; }

/* Hazard rule divider */
.hazard-rule {
  height: 12px;
  background: repeating-linear-gradient(
    -45deg,
    var(--safety) 0 14px,
    var(--ink) 14px 28px
  );
  border-block: 2px solid var(--ink);
}
body.night .hazard-rule { border-color: oklch(0 0 0); }

/* ── Sections ─────────────────────────────────────────────────────── */
.section { padding-block: clamp(64px, 11vh, 128px); }

.section-paper { background: var(--bg); color: var(--tx); }
.section-tinted { background: var(--paper-2); }
body.night .section-tinted { background: oklch(0.165 0.008 55); }

.section-ink {
  --safety-text: var(--safety);
  --bg: var(--ink);
  --bg-elev: var(--ink-2);
  --tx: oklch(0.945 0.004 80);
  --tx-2: oklch(0.72 0.012 70);
  --line: oklch(0.945 0.004 80 / 0.16);
  --line-hard: oklch(0.945 0.004 80);
  background: var(--bg); color: var(--tx);
  color-scheme: dark;
}
body.night .section-ink { --bg: oklch(0.14 0.008 55); --bg-elev: oklch(0.19 0.009 55); }

.section-head {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: end;
  margin-bottom: clamp(40px, 7vh, 80px);
}
.section-title {
  font-family: var(--font-display);
  font-weight: 800; text-transform: uppercase;
  font-size: clamp(2.5rem, 5.4vw, 4.1rem);
  line-height: 0.94; letter-spacing: -0.005em;
  text-wrap: balance;
}
.section-sub {
  color: var(--tx-2); font-size: 1.08rem; max-width: 58ch;
  text-wrap: pretty;
  border-left: 2px solid var(--safety); padding-left: 20px;
}

/* ── Read/Write ledger ────────────────────────────────────────────── */
.rw-ledger {
  display: grid; grid-template-columns: 1fr 1fr;
  border: 2px solid var(--line-hard);
  margin-bottom: clamp(48px, 8vh, 88px);
}
.rw-col { padding: clamp(20px, 3vw, 36px); }
.rw-read { border-right: 2px solid var(--line-hard); background: var(--bg-elev); }
.rw-write { background: var(--safety); color: var(--ink); }
.rw-col-head {
  font-size: 0.62rem; letter-spacing: 0.1em;
  padding-bottom: 12px; margin-bottom: 18px;
  border-bottom: 2px solid currentColor;
}
.rw-col ul { list-style: none; display: grid; gap: 12px; }
.rw-col li { padding-left: 22px; position: relative; font-weight: 500; }
.rw-col li::before {
  content: "—"; position: absolute; left: 0; font-family: var(--font-mono);
}
.rw-write li::before { content: "+"; font-weight: 700; }
.rw-dead { opacity: 0.65; text-decoration: line-through; text-decoration-thickness: 1px; }

/* ── Spec table (capabilities) ────────────────────────────────────── */
.spec-table { border-top: 2px solid var(--line-hard); }
.spec-row {
  display: grid; grid-template-columns: 110px 1fr 120px;
  gap: clamp(18px, 3vw, 48px);
  align-items: center;
  padding: clamp(24px, 4vh, 40px) 0;
  border-bottom: 2px solid var(--line-hard);
  transition: background var(--t-fast), padding-left var(--t-med);
}
.spec-row:hover { background: var(--safety-soft); padding-left: 12px; }
.spec-code {
  font-size: 0.78rem; font-weight: 700; color: var(--safety-text);
  align-self: start; padding-top: 6px;
}
.spec-body h3 {
  font-family: var(--font-display); font-weight: 700; text-transform: uppercase;
  font-size: 1.6rem; letter-spacing: 0.01em; margin-bottom: 8px;
}
.spec-body p { color: var(--tx-2); max-width: 62ch; }
.spec-body code {
  font-family: var(--font-mono); font-size: 0.8em;
  background: var(--safety-soft); padding: 1px 5px;
}
.spec-glyph { width: 100%; color: var(--tx); opacity: 0.85; }
.spec-row:hover .spec-glyph { color: var(--safety); opacity: 1; }

/* ── Data plane schematic ─────────────────────────────────────────── */
.dataplane { margin-bottom: clamp(48px, 8vh, 80px); }
.dataplane-svg { width: 100%; height: auto; color: var(--tx); }
.dataplane figcaption {
  font-size: 0.62rem; letter-spacing: 0.08em; color: var(--tx-2);
  margin-top: 14px; text-align: center;
}
.dp-node rect { fill: var(--bg-elev); stroke: var(--line-hard); stroke-width: 2; }
.dp-node-hot rect { stroke: var(--safety); }
.dp-slot { fill: oklch(0 0 0 / 0.25) !important; stroke: var(--line) !important; }
.dp-title {
  font-family: var(--font-display); font-weight: 700; font-size: 19px;
  fill: var(--tx); text-anchor: middle; letter-spacing: 0.5px;
}
.dp-node-hot .dp-title { fill: var(--safety); }
.dp-sub { font-family: var(--font-mono); font-size: 10px; fill: var(--tx-2); text-anchor: middle; }
.dp-mono { font-family: var(--font-mono); font-size: 11px; fill: var(--tx-2); text-anchor: middle; }
.dp-flow path { fill: none; stroke-width: 2.5; stroke-dasharray: 7 5; }
.dp-flow-tx path { stroke: var(--run-green); color: var(--run-green); animation: flow-tx 1.1s linear infinite; }
.dp-flow-rx path { stroke: var(--safety); color: var(--safety); animation: flow-rx 1.1s linear infinite; }
.dp-flow-label { font-family: var(--font-mono); font-size: 10px; fill: var(--tx-2); text-anchor: middle; }
@keyframes flow-tx { to { stroke-dashoffset: -12; } }
@keyframes flow-rx { to { stroke-dashoffset: -12; } }

/* ── Code showcase ────────────────────────────────────────────────── */
.code-showcase { border: 2px solid var(--line-hard); background: var(--bg-elev); }
.code-header { display: flex; border-bottom: 2px solid var(--line-hard); flex-wrap: wrap; }
.code-tab {
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.04em;
  padding: 12px 18px; background: none; border: none; cursor: pointer;
  color: var(--tx-2); border-right: 2px solid var(--line-hard);
  transition: background var(--t-fast), color var(--t-fast);
}
.code-tab:hover { color: var(--tx); background: var(--safety-soft); }
.code-tab.active { background: var(--safety); color: var(--ink); font-weight: 700; }
.code-body { position: relative; }
.code-content {
  display: none; padding: clamp(18px, 3vw, 32px); overflow-x: auto;
  font-family: var(--font-mono); font-size: 0.78rem; line-height: 1.75;
  tab-size: 4;
}
.code-content.active { display: block; }
.code-content .keyword   { color: var(--safety); }
.code-content .string    { color: var(--run-green); }
.code-content .comment   { color: var(--tx-2); opacity: 0.75; }
.code-content .function  { color: oklch(0.75 0.12 230); }
.code-content .type      { color: oklch(0.78 0.12 85); }
.code-content .number    { color: oklch(0.75 0.15 320); }
.code-content .decorator { color: oklch(0.78 0.12 85); }

/* ── Test bench ───────────────────────────────────────────────────── */
.bench {
  display: grid; grid-template-columns: minmax(280px, 2fr) 3fr;
  border: 2px solid var(--line-hard);
  background: var(--bg-elev);
}
.bench-controls {
  padding: clamp(20px, 3vw, 32px);
  border-right: 2px solid var(--line-hard);
  display: flex; flex-direction: column; gap: 26px;
}
.bench-panel-head {
  font-size: 0.62rem; letter-spacing: 0.1em; color: var(--tx-2);
  border-bottom: 2px solid var(--safety); padding-bottom: 10px;
}

.fader-group { display: grid; gap: 10px; }
.fader-head { display: flex; justify-content: space-between; align-items: baseline; }
.fader-head label { font-weight: 600; font-size: 0.92rem; font-family: var(--font-mono); font-size: 0.72rem; }
.fader-head output { font-size: 0.72rem; color: var(--safety-text); font-weight: 700; }

input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 26px; background: transparent; cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 4px; background: var(--line);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 26px; margin-top: -11px;
  background: var(--safety); border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 oklch(0 0 0 / 0.3);
  transition: transform var(--t-fast);
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scaleY(1.12); }
input[type="range"]::-moz-range-track { height: 4px; background: var(--line); }
input[type="range"]::-moz-range-thumb {
  width: 14px; height: 26px; border-radius: 0;
  background: var(--safety); border: 2px solid var(--ink);
}

.switch-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.switch-caption { font-family: var(--font-mono); font-size: 0.72rem; }
.toggle-buttons { display: flex; }
.btn-switch {
  font-family: var(--font-mono); font-size: 0.66rem; font-weight: 700;
  letter-spacing: 0.06em; padding: 8px 14px;
  background: transparent; color: var(--tx-2);
  border: 2px solid var(--line-hard); cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
}
.btn-switch + .btn-switch { border-left: none; }
.btn-switch:hover { background: var(--safety-soft); color: var(--tx); }
.btn-switch.active { background: var(--ink); color: var(--paper); }
body.night .btn-switch.active { background: var(--paper); color: var(--ink); }
#btn-halt-sim.active, #btn-block-obs.active { background: var(--estop-red); color: oklch(0.97 0.01 27); border-color: var(--estop-red-dk); }

.mutation-log {
  margin-top: auto; font-size: 0.6rem; line-height: 2;
  color: var(--tx-2); border-top: 2px solid var(--line); padding-top: 12px;
  min-height: 96px; max-height: 96px; overflow: hidden;
}
.mutation-line.fresh { color: var(--safety-text); }

.bench-viz { display: flex; flex-direction: column; min-width: 0; }
.bench-viz-head {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.62rem; letter-spacing: 0.08em;
  padding: 12px clamp(14px, 2vw, 24px);
  border-bottom: 2px solid var(--line-hard);
  color: var(--tx-2);
}
.bench-status { display: flex; align-items: center; gap: 8px; color: var(--tx); }
.bench-led { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.led-green { background: var(--run-green); }
.led-amber { background: var(--warn-amber); }
.led-red   { background: var(--estop-red); }

.canvas-wrapper { position: relative; height: 340px; background: oklch(0.16 0.008 60); }
body.night .canvas-wrapper { background: oklch(0.12 0.008 55); }
#sandbox-canvas { width: 100%; height: 100%; }

.bench-strip { height: 64px; border-top: 2px solid var(--line-hard); background: oklch(0.19 0.008 60); }
body.night .bench-strip { background: oklch(0.145 0.008 55); }
#bench-strip-canvas { width: 100%; height: 100%; }

.telemetry-footer {
  display: flex; gap: clamp(14px, 3vw, 36px); flex-wrap: wrap;
  padding: 12px clamp(14px, 2vw, 24px);
  border-top: 2px solid var(--line-hard);
  font-size: 0.62rem; letter-spacing: 0.04em; color: var(--tx-2);
}
.telemetry-footer b { color: var(--tx); font-weight: 500; }
.tel-latency { color: var(--safety-text) !important; }

/* ── Ordering table (pricing) ─────────────────────────────────────── */
.billing-toggle-wrapper {
  grid-column: 2; display: flex; align-items: center; gap: 14px;
  margin-top: 18px; font-size: 0.66rem; letter-spacing: 0.06em;
}
.period-switch {
  width: 52px; height: 26px; border: 2px solid var(--line-hard);
  background: var(--bg-elev); cursor: pointer; position: relative;
  transition: background var(--t-fast);
}
.period-switch .period-knob {
  position: absolute; top: 1px; left: 1px;
  width: 20px; height: 18px; background: var(--ink);
  transition: transform var(--t-fast);
}
body.night .period-switch .period-knob { background: var(--paper); }
.period-switch[aria-checked="true"] { background: var(--safety); }
.period-switch[aria-checked="true"] .period-knob { transform: translateX(26px); }

.order-table { border: 2px solid var(--line-hard); background: var(--bg-elev); }
.order-row {
  display: grid;
  grid-template-columns: 170px 1fr 150px 150px;
  gap: clamp(16px, 3vw, 40px);
  align-items: center;
  padding: clamp(20px, 3vh, 32px) clamp(16px, 2.5vw, 32px);
  border-bottom: 2px solid var(--line-hard);
  transition: background var(--t-fast);
}
.order-row:last-child { border-bottom: none; }
.order-row:not(.order-row-head):hover { background: var(--safety-soft); }
.order-row-head {
  padding-block: 10px; font-size: 0.6rem; letter-spacing: 0.1em;
  color: var(--tx-2); background: oklch(0.205 0.008 60 / 0.04);
}
body.night .order-row-head { background: oklch(0 0 0 / 0.2); }
.order-featured {
  background: var(--safety); color: var(--ink);
  border-block: 2px solid var(--ink);
  margin-inline: -2px; border-inline: 2px solid var(--ink);
}
.order-featured:not(.order-row-head):hover { background: var(--safety); }
.order-code { display: grid; gap: 4px; }
.code-id { font-size: 0.72rem; font-weight: 700; color: var(--safety-text); }
.order-featured .code-id { color: var(--ink); }
.order-name { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; text-transform: uppercase; }
.order-flag {
  font-size: 0.54rem; letter-spacing: 0.1em; margin-top: 4px;
  background: var(--ink); color: var(--safety); padding: 3px 7px; justify-self: start;
}
.order-spec { list-style: none; display: grid; gap: 5px; font-size: 0.9rem; }
.order-spec li { padding-left: 16px; position: relative; }
.order-spec li::before { content: "·"; position: absolute; left: 2px; font-weight: 700; }
.order-price { display: flex; align-items: baseline; gap: 5px; }
.price-val { font-size: 1.7rem; font-weight: 700; }
.price-period { font-size: 0.62rem; color: var(--tx-2); }
.order-featured .price-period { color: var(--ink); opacity: 0.7; }
.order-featured .btn-safety { background: var(--ink); color: var(--safety); border-color: var(--ink); }
.order-featured .btn-safety:hover { box-shadow: 4px 4px 0 oklch(0 0 0 / 0.35); }

/* ── Contact ──────────────────────────────────────────────────────── */
.contact-layout {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(32px, 6vw, 88px); align-items: start;
}
.contact-info .section-sub { margin-top: 24px; }
.contact-details { margin-top: 36px; display: grid; gap: 16px; font-size: 0.72rem; }
.contact-details div { display: flex; gap: 18px; align-items: baseline; }
.contact-details dt { color: var(--tx-2); letter-spacing: 0.08em; min-width: 8ch; }
.contact-details a { color: var(--safety); text-decoration: none; border-bottom: 1px solid transparent; }
.contact-details a:hover { border-bottom-color: var(--safety); }

.contact-form {
  border: 2px solid var(--line-hard); background: var(--bg-elev);
  padding: clamp(22px, 3.5vw, 40px);
  display: grid; gap: 20px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: grid; gap: 8px; }
.form-group label {
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--tx-2);
}
.form-group input, .form-group select, .form-group textarea {
  font-family: var(--font-body); font-size: 0.95rem;
  padding: 12px 14px; color: var(--tx);
  background: var(--bg); border: 2px solid var(--line);
  transition: border-color var(--t-fast);
  border-radius: 0;
}
.form-group textarea { resize: vertical; min-height: 96px; }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--tx-2); opacity: 0.8; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--safety);
}
.form-status { display: none; font-size: 0.66rem; line-height: 1.8; padding: 12px 14px; border: 2px dashed var(--line); }
.form-status.visible { display: block; }
.form-status.success { border-color: var(--run-green); color: var(--run-green); }

/* ── Footer ───────────────────────────────────────────────────────── */
.footer { background: var(--ink); color: oklch(0.72 0.012 70); }
body.night .footer { background: oklch(0.12 0.008 55); }
.footer .hazard-rule { border-top: none; }
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  gap: 20px; flex-wrap: wrap;
  padding-block: 28px;
  font-size: 0.6rem; letter-spacing: 0.05em;
}
.footer-links { display: flex; gap: 22px; }
.footer-links a { text-decoration: none; transition: color var(--t-fast); }
.footer-links a:hover { color: var(--safety); }

/* ── Reveal on scroll ─────────────────────────────────────────────── */
.reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(18px); transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out); }
  .reveal.in { opacity: 1; transform: none; }
}

/* ── Global halt: E-STOP freezes every CSS animation ──────────────── */
body[data-halted="true"] *,
body[data-halted="true"] *::before,
body[data-halted="true"] *::after {
  animation-play-state: paused !important;
}

/* ── Reduced motion ───────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 1020px) {
  .order-row { grid-template-columns: 140px 1fr 120px; }
  .order-row .btn { grid-column: 2 / -1; justify-self: start; }
  .order-row-head span:last-child { display: none; }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-control { justify-content: flex-start; }
  .section-head { grid-template-columns: 1fr; align-items: start; }
  .billing-toggle-wrapper { grid-column: 1; }
  .rw-ledger { grid-template-columns: 1fr; }
  .rw-read { border-right: none; border-bottom: 2px solid var(--line-hard); }
  .contact-layout { grid-template-columns: 1fr; }
  .bench { grid-template-columns: 1fr; }
  .bench-controls { border-right: none; border-bottom: 2px solid var(--line-hard); }
  .spec-row { grid-template-columns: 80px 1fr; }
  .spec-glyph { display: none; }
}

@media (max-width: 1100px) {
  .live-readout { display: none; }
}

@media (max-width: 940px) {
  .nav-links {
    display: none;
    position: absolute; top: var(--statusbar-h); left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--bg); border-bottom: 2px solid var(--line-hard);
    padding: 8px 0;
  }
  .nav-links.active { display: flex; }
  .nav-links a { padding: 14px clamp(20px, 4vw, 48px); }
  .mobile-toggle { display: flex; }
  .wordmark-doc { display: none; }
}

@media (max-width: 760px) {
  .live-readout { display: none; }
  .statusbar-right .btn { display: none; }

  .order-row { grid-template-columns: 1fr; gap: 14px; }
  .order-row-head { display: none; }
  .order-price { border-top: 2px dashed var(--line); padding-top: 12px; }
  .form-row { grid-template-columns: 1fr; }
  .canvas-wrapper { height: 260px; }
}

/* ── Overhaul Overrides & Additions ───────────────────────────────── */

/* Hero actions and waitlist */
.hero-actions-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: clamp(26px, 4vh, 40px);
  width: 100%;
  max-width: 500px;
}
.waitlist-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.waitlist-input-group {
  display: flex;
  border: 2px solid var(--line-hard);
  background: var(--bg-elev);
}
.waitlist-form input[type="email"] {
  flex: 1;
  background: transparent;
  border: none;
  padding: 12px 18px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--tx);
  outline: none;
}
.waitlist-form input[type="email"]::placeholder {
  color: var(--tx-2);
}
.waitlist-form .btn {
  border: none;
  border-left: 2px solid var(--line-hard);
}
.waitlist-form .btn:hover {
  transform: none;
  box-shadow: none;
  background: var(--safety);
  color: var(--ink);
}
.hero-sub-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
.github-star-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.github-badge {
  background: var(--line-hard);
  color: var(--bg);
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 2px;
  font-weight: 700;
}
.github-icon {
  flex-shrink: 0;
}

/* Integrations strip */
.integrations-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  margin-top: 36px;
  padding-top: 18px;
  border-top: 2px dashed var(--line);
  font-size: 0.72rem;
  color: var(--tx-2);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.integrations-strip .strip-label {
  font-weight: 700;
  color: var(--tx);
}
.integrations-strip .strip-items {
  opacity: 0.85;
}

/* Story blocks */
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 32px;
  margin-bottom: 48px;
}
.story-block {
  border: 2px solid var(--line-hard);
  padding: 28px;
  background: var(--bg-elev);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--t-med), box-shadow var(--t-med);
}
.story-block:hover {
  transform: translate(-3px, -3px);
  box-shadow: 6px 6px 0 var(--safety);
}
.story-block-title {
  font-size: 0.85rem;
  color: var(--safety-text);
  letter-spacing: 0.08em;
}
.story-block-body {
  font-size: 1.02rem;
  line-height: 1.6;
}

/* Product Section */
.section-tinted {
  background: var(--bg-elev);
  border-top: 2px solid var(--line-hard);
  border-bottom: 2px solid var(--line-hard);
}
.product-showcase {
  display: flex;
  flex-direction: column;
  gap: 60px;
  margin-top: 48px;
}
.product-media-container {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.product-image {
  border: 2px solid var(--line-hard);
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
  width: 100%;
  height: auto;
  transition: transform var(--t-med), box-shadow var(--t-med);
}
.product-image:hover {
  box-shadow: 0 16px 40px rgba(0,0,0,0.1);
}
.product-walkthrough {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  border-top: 2px solid var(--line-hard);
  padding-top: 24px;
}
.walkthrough-step {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.walkthrough-step .step-num {
  font-size: 0.72rem;
  color: var(--safety-text);
  font-weight: 700;
}
.walkthrough-step h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.walkthrough-step p {
  font-family: var(--font-body);
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--tx-2);
}

/* Video Placeholder */
.demo-video-container {
  width: 100%;
}
.video-placeholder {
  background: var(--ink);
  color: var(--paper);
  border: 2px solid var(--line-hard);
  padding: clamp(48px, 8vw, 96px) 24px;
  text-align: center;
  position: relative;
  cursor: pointer;
  transition: transform var(--t-med), box-shadow var(--t-med), background-color var(--t-med);
}
body.night .video-placeholder {
  background: oklch(0.12 0.005 60);
  color: var(--tx);
}
.video-placeholder:hover {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0 var(--safety);
  background: oklch(0.24 0.01 60);
}
body.night .video-placeholder:hover {
  background: oklch(0.15 0.005 60);
}
.video-placeholder-inner {
  max-width: 480px;
  margin-inline: auto;
}
.video-placeholder .play-icon {
  transition: transform var(--t-fast);
}
.video-placeholder:hover .play-icon {
  transform: scale(1.15);
}
.video-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

/* Architecture Spec Line */
.arch-spec {
  font-size: clamp(0.58rem, 1.2vw, 0.72rem);
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
  padding: 8px 0;
  margin-top: 20px;
  letter-spacing: 0.02em;
  width: fit-content;
  align-self: center;
}
body.night .arch-spec {
  color: var(--safety);
  border-color: var(--safety-soft);
}

/* Responsive Overrides */
@media (max-width: 900px) {
  .story-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .product-walkthrough {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
}
@media (max-width: 600px) {
  .product-walkthrough {
    grid-template-columns: 1fr;
  }
  .waitlist-input-group {
    flex-direction: column;
    border: none;
    background: transparent;
    gap: 8px;
  }
  .waitlist-form input[type="email"] {
    border: 2px solid var(--line-hard);
    background: var(--bg-elev);
    width: 100%;
    padding: 12px;
  }
  .waitlist-form .btn {
    border: 2px solid var(--line-hard);
    width: 100%;
  }
}