/* ============================================================
   Quarkpad : visual system
   Foundation : warm graphite neutrals on near black
   Accent     : a single signal ember, used sparingly
   Type       : Bricolage Grotesque (display) + Inter (text)
                + IBM Plex Mono (spec tags and readouts)
   Principle  : composition and restraint over motion
   ============================================================ */

:root {
  /* neutral foundation */
  --ink:        #0b0c0e;   /* page base */
  --ink-2:      #101113;   /* raised base */
  --surface:    #15171a;   /* cards, panels */
  --surface-2:  #1b1e22;   /* hover / nested */
  --plate:      #e9e6df;   /* warm off white plate for product imagery */
  --plate-edge: #d8d4ca;

  --hair:       rgba(255,255,255,0.07);   /* hairline divider */
  --hair-2:     rgba(255,255,255,0.12);   /* stronger divider */
  --hair-warm:  rgba(214,124,58,0.22);

  /* single accent: signal ember */
  --ember:      #e0712f;
  --ember-soft: #ef8b4c;
  --ember-deep: #c25c20;

  /* restrained secondary, used only on the inspection viewer chrome */
  --steel:      #7f93a6;

  /* type colors */
  --text:       #f3f1ec;
  --text-soft:  #b3b2ac;
  --text-dim:   #7d7d78;
  --text-faint: #565651;

  /* metrics */
  --radius:     14px;
  --radius-sm:  8px;
  --radius-lg:  22px;
  --maxw:       1200px;
  --gutter:     32px;
  --ease:       cubic-bezier(0.22, 1, 0.36, 1);

  --display:    "Bricolage Grotesque", Georgia, serif;
  --sans:       "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono:       "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* modular type scale (1.250, base 18px) */
  --t-50:  0.78rem;   /* 14 micro / tags  */
  --t-60:  0.875rem;  /* 15.75 small      */
  --t-100: 1.125rem;  /* 18 body          */
  --t-200: 1.4rem;    /* 22.5             */
  --t-300: 1.75rem;   /* 28               */
  --t-400: 2.19rem;   /* 35               */
  --t-500: 2.74rem;   /* 44               */

  --section-y: clamp(88px, 12vw, 168px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--sans);
  font-size: var(--t-100);
  background: var(--ink);
  color: var(--text);
  line-height: 1.62;
  letter-spacing: -0.005em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* a single, very quiet ambient wash. No competing neon fields. */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(1100px 620px at 78% -8%, rgba(224,113,47,0.06), transparent 62%);
}

h1, h2, h3, h4 { font-family: var(--display); font-weight: 700; letter-spacing: -0.02em; }
.display { font-family: var(--display); }

a { color: var(--text); text-decoration: none; }
img { max-width: 100%; display: block; }

::selection { background: var(--ember); color: #160c04; }

:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); position: relative; z-index: 2; }

.skip {
  position: absolute; left: -999px; top: 0; z-index: 999;
  background: var(--ember); color: #160c04; padding: 12px 18px; border-radius: 0 0 10px 0; font-weight: 600;
}
.skip:focus { left: 0; }

/* ---------------------------------------------------------- shared kicker / eyebrow */
.kicker {
  font-family: var(--mono);
  font-size: var(--t-50);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ember);
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 22px;
}
.kicker::before {
  content: ""; width: 22px; height: 1px; background: var(--ember); opacity: 0.7; flex: none;
}

/* ---------------------------------------------------------- buttons */
.btn {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-family: var(--sans); font-weight: 600; font-size: var(--t-60);
  letter-spacing: 0.005em;
  padding: 0.85em 1.45em; border-radius: 10px;
  border: 1px solid transparent; cursor: pointer; text-decoration: none;
  transition: transform 0.3s var(--ease), background 0.25s, border-color 0.25s, color 0.25s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--ember);
  color: #160c04;
}
.btn-primary:hover { background: var(--ember-soft); transform: translateY(-2px); }
.btn-ghost {
  background: transparent;
  border-color: var(--hair-2);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--text-soft); background: rgba(255,255,255,0.03); }
.btn .arr { transition: transform 0.3s var(--ease); }
.btn:hover .arr { transform: translateX(3px); }

/* ---------------------------------------------------------- nav */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px var(--gutter);
  transition: background 0.35s, backdrop-filter 0.35s, border-color 0.35s, padding 0.35s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(11,12,14,0.82);
  backdrop-filter: blur(16px) saturate(130%);
  border-bottom: 1px solid var(--hair);
  padding-top: 13px; padding-bottom: 13px;
}
.nav .brand { display: flex; align-items: center; gap: 11px; font-family: var(--display); font-weight: 700; font-size: 1.2rem; letter-spacing: -0.01em; color: var(--text); }
.nav .glyph { width: 24px; height: 24px; flex: none; }
.nav .glyph svg { width: 100%; height: 100%; display: block; }
.nav .links { display: flex; gap: 30px; align-items: center; }
.nav .links a.navlink { color: var(--text-soft); font-size: var(--t-60); font-weight: 500; transition: color 0.25s; }
.nav .links a.navlink:hover { color: var(--text); }
.nav .btn { font-size: var(--t-60); padding: 0.7em 1.2em; }
@media (max-width: 880px) {
  .nav .links a.navlink { display: none; }
}

/* ---------------------------------------------------------- hero */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: flex-end;
  overflow: hidden;
  background:
    radial-gradient(135% 105% at 70% 8%, #1b1e24 0%, #101216 46%, #0a0b0d 100%);
}
.hero .wrap {
  z-index: 3;
  padding-top: 124px;
  padding-bottom: clamp(54px, 9vh, 116px);
}
.hero-copy { max-width: 760px; }
/* full-bleed cinematic canvas */
.hero-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 1; display: block;
}
.scene-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 1; display: block;
}
.hero .fallback-img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain;
  padding: 6% 6% 16%; display: none; z-index: 1;
}
.no-webgl .hero .fallback-img, .no-js .hero .fallback-img { display: block; }
.no-webgl .hero-canvas, .no-js .hero-canvas { display: none; }
/* readability scrim over the 3D so the headline stays crisp */
.hero-scrim {
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background:
    linear-gradient(180deg, rgba(10,11,13,0.45) 0%, transparent 26%, transparent 44%, rgba(10,11,13,0.86) 100%),
    radial-gradient(95% 80% at 20% 82%, rgba(10,11,13,0.55), transparent 62%);
}

/* a single quiet specimen tag in the hero corner */
.hero-tag {
  position: absolute; right: 26px; bottom: 24px; z-index: 4;
  font-family: var(--mono); font-size: var(--t-50); letter-spacing: 0.08em;
  color: var(--text-dim); pointer-events: none;
  display: flex; align-items: center; gap: 8px;
  opacity: 0; transition: opacity 1s var(--ease) 0.4s;
}
.hero-tag.live { opacity: 1; }
.hero-tag .pip { width: 6px; height: 6px; border-radius: 50%; background: var(--ember); flex: none; }
.no-js .hero-tag { display: none; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: var(--t-50); letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ember); margin-bottom: 26px;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ember); flex: none; }

.hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.9rem, 6.4vw, 5.2rem);
  line-height: 0.98; letter-spacing: -0.035em;
  color: var(--text);
  margin-bottom: 24px;
}
.hero h1 .accent { color: var(--ember); }
.hero .lede { font-size: clamp(1.12rem, 1.7vw, 1.35rem); color: var(--text-soft); max-width: 42ch; margin-bottom: 32px; line-height: 1.55; }
.hero .cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero .parent { margin-top: 34px; font-size: var(--t-60); color: var(--text-dim); letter-spacing: 0.01em; }
.hero .parent a { color: var(--text-soft); border-bottom: 1px solid var(--hair-2); }
.hero .parent a:hover { color: var(--text); }

@media (max-width: 920px) {
  .hero .wrap { padding-top: 112px; }
  .hero-copy { max-width: 100%; }
}

/* loader inside scene panels */
.loader {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 14px; z-index: 4; color: var(--text-dim); font-family: var(--mono); font-size: var(--t-50); letter-spacing: 0.2em; text-transform: uppercase;
  transition: opacity 0.6s; pointer-events: none;
}
.loader.hide { opacity: 0; }
.loader .ring { width: 30px; height: 30px; border-radius: 50%; border: 2px solid var(--hair-2); border-top-color: var(--ember); animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.no-webgl .loader, .no-js .loader { display: none; }
@media (prefers-reduced-motion: reduce) {
  .loader .ring { animation: none; border-top-color: var(--hair-2); }
}

/* ---------------------------------------------------------- section scaffolding */
section { position: relative; z-index: 2; }
.band { padding: var(--section-y) 0; }
.section-head { max-width: 60ch; margin-bottom: clamp(44px, 6vw, 72px); }
.h2 { font-family: var(--display); font-weight: 700; font-size: clamp(2rem, 4.4vw, var(--t-500)); line-height: 1.04; letter-spacing: -0.03em; margin-bottom: 20px; }
.h2 em { font-style: normal; color: var(--ember); }
.lead { font-size: var(--t-200); color: var(--text-soft); max-width: 54ch; line-height: 1.45; }

/* reveal animation : quiet, single fade-up */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.07s; }
.reveal.d2 { transition-delay: 0.14s; }
.reveal.d3 { transition-delay: 0.21s; }
.reveal.d4 { transition-delay: 0.28s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------------------------------------------------------- value / manifesto */
.value { border-top: 1px solid var(--hair); }
.value .wrap { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: clamp(40px, 7vw, 110px); align-items: start; }
.value .statement { font-family: var(--display); font-size: clamp(1.6rem, 3vw, var(--t-400)); line-height: 1.22; letter-spacing: -0.02em; color: var(--text); font-weight: 500; }
.value .statement strong { color: var(--ember); font-weight: 700; }
.value .side p { color: var(--text-soft); margin-bottom: 18px; max-width: 50ch; }
.value .side p:last-child { margin-bottom: 0; }
.who { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.who span {
  font-family: var(--mono); font-size: var(--t-50); letter-spacing: 0.04em;
  padding: 8px 14px; border: 1px solid var(--hair-2); border-radius: 999px; color: var(--text-soft);
}
@media (max-width: 880px) { .value .wrap { grid-template-columns: 1fr; gap: 40px; } }

/* ---------------------------------------------------------- editorial feature rows */
.feature {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(36px, 6vw, 92px); align-items: center;
  max-width: var(--maxw); margin-inline: auto;
  padding: clamp(56px, 8vw, 120px) var(--gutter);
  border-top: 1px solid var(--hair);
}
.feature.flip .feature-media { order: 2; }
.feature-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--plate);
  border: 1px solid var(--plate-edge);
  aspect-ratio: 4 / 3.2;
  display: flex; align-items: center; justify-content: center;
}
.feature-media img {
  width: 100%; height: 100%; object-fit: contain; padding: 9%;
  mix-blend-mode: multiply;
}
.feature-media .frame {
  position: absolute; inset: 16px; z-index: 2; pointer-events: none;
  border: 1px solid rgba(11,12,14,0.10); border-radius: 8px;
}
.feature-media .plate-tag {
  position: absolute; left: 18px; top: 16px; z-index: 3;
  font-family: var(--mono); font-size: var(--t-50); letter-spacing: 0.08em; color: #6c6960;
}
.feature-num { font-family: var(--mono); font-size: var(--t-50); letter-spacing: 0.18em; color: var(--ember); margin-bottom: 16px; display: block; }
.feature h3 { font-size: clamp(1.7rem, 3.4vw, var(--t-400)); line-height: 1.08; letter-spacing: -0.025em; margin-bottom: 18px; }
.feature h3 span { color: var(--text-soft); }
.feature p { color: var(--text-soft); max-width: 46ch; margin-bottom: 14px; }
.feature .spec-line {
  margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--hair);
  font-family: var(--mono); font-size: var(--t-60); color: var(--text-dim); letter-spacing: 0.01em;
}
.feature .spec-line b { color: var(--text); font-weight: 500; }
@media (max-width: 880px) {
  .feature { grid-template-columns: 1fr; gap: 32px; }
  .feature.flip .feature-media { order: -1; }
  .feature-media { order: -1; }
}

/* ---------------------------------------------------------- how it works */
.how { border-top: 1px solid var(--hair); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--hair); border: 1px solid var(--hair); border-radius: var(--radius); overflow: hidden; }
.step { background: var(--ink); padding: clamp(28px, 3vw, 40px); }
.step .idx { font-family: var(--mono); font-size: var(--t-50); letter-spacing: 0.1em; color: var(--ember); margin-bottom: 22px; display: block; }
.step h3 { font-size: var(--t-200); line-height: 1.12; margin-bottom: 12px; letter-spacing: -0.02em; }
.step p { color: var(--text-soft); font-size: var(--t-60); line-height: 1.6; }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------- bench (inspection viewer) */
.bench { border-top: 1px solid var(--hair); background: var(--ink-2); }
.bench .wrap { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(40px, 5vw, 80px); align-items: center; }
.bench-stage {
  position: relative; aspect-ratio: 4 / 3.4; border-radius: var(--radius);
  background:
    radial-gradient(110% 90% at 50% 30%, #1d2126 0%, #131519 55%, #0d0e11 100%);
  border: 1px solid var(--hair-2); overflow: hidden;
}
/* one calm corner-bracket inspection frame, steel, no glow grid */
.bench-stage .frame {
  content: ""; position: absolute; inset: 16px; z-index: 5; pointer-events: none;
  border-radius: 8px;
  background:
    linear-gradient(var(--steel),var(--steel)) left top / 16px 1px no-repeat,
    linear-gradient(var(--steel),var(--steel)) left top / 1px 16px no-repeat,
    linear-gradient(var(--steel),var(--steel)) right top / 16px 1px no-repeat,
    linear-gradient(var(--steel),var(--steel)) right top / 1px 16px no-repeat,
    linear-gradient(var(--steel),var(--steel)) left bottom / 16px 1px no-repeat,
    linear-gradient(var(--steel),var(--steel)) left bottom / 1px 16px no-repeat,
    linear-gradient(var(--steel),var(--steel)) right bottom / 16px 1px no-repeat,
    linear-gradient(var(--steel),var(--steel)) right bottom / 1px 16px no-repeat;
  opacity: 0.34;
}
.bench-stage .scene-canvas { cursor: grab; }
.bench-stage .scene-canvas:active { cursor: grabbing; }
.bench-stage .fallback-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; padding: 12%; display: none; }
.no-webgl .bench-stage .fallback-img, .no-js .bench-stage .fallback-img { display: block; }
.no-webgl .bench-stage .scene-canvas, .no-webgl .bench-stage .frame { display: none; }
.no-js .bench-stage .frame { display: none; }
.bench-stage .readout {
  position: absolute; top: 14px; left: 16px; z-index: 6; pointer-events: none;
  font-family: var(--mono); font-size: var(--t-50); letter-spacing: 0.08em;
  color: var(--text-dim); line-height: 1.9;
}
.bench-stage .readout b { color: var(--text-soft); font-weight: 500; }
.bench-stage .readout .live-azim { color: var(--ember); }
.no-js .bench-stage .readout { display: none; }
.bench-stage .hint {
  position: absolute; bottom: 14px; left: 0; right: 0; text-align: center;
  font-family: var(--mono); font-size: var(--t-50); letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-faint); z-index: 5; pointer-events: none;
}
.no-js .bench-stage .hint { display: none; }
.bench .selector { display: flex; flex-wrap: wrap; gap: 8px; margin: 26px 0 6px; }
.bench .chip {
  font-family: var(--mono); font-size: var(--t-50); font-weight: 500; letter-spacing: 0.02em;
  padding: 8px 13px; border-radius: 8px; border: 1px solid var(--hair-2);
  background: transparent; color: var(--text-soft); cursor: pointer; transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.bench .chip:hover { border-color: var(--text-dim); color: var(--text); }
.bench .chip.active { background: var(--ember); border-color: var(--ember); color: #160c04; }
.bench .caption { margin-top: 22px; min-height: 4.5em; }
.bench .caption h4 { font-family: var(--display); font-size: var(--t-200); margin-bottom: 8px; letter-spacing: -0.01em; }
.bench .caption p { color: var(--text-soft); font-size: var(--t-60); max-width: 46ch; }
.bench .caption .meta { margin-top: 12px; font-family: var(--mono); font-size: var(--t-50); color: var(--ember); letter-spacing: 0.04em; }
@media (max-width: 880px) { .bench .wrap { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------- products */
.products { border-top: 1px solid var(--hair); }
.products .head { display: flex; justify-content: space-between; align-items: end; gap: 28px; flex-wrap: wrap; margin-bottom: clamp(40px, 5vw, 60px); }
.products .head .lead { max-width: 40ch; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 980px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }
.card {
  position: relative; border-radius: var(--radius); overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--hair);
  display: flex; flex-direction: column;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.card:hover { border-color: var(--hair-2); transform: translateY(-3px); }
.card .imgwrap {
  position: relative; aspect-ratio: 4 / 3; overflow: hidden;
  background: var(--plate);
  display: flex; align-items: center; justify-content: center;
  border-bottom: 1px solid var(--hair);
}
.card .imgwrap img { width: 100%; height: 100%; object-fit: contain; padding: 13%; mix-blend-mode: multiply; transition: transform 0.5s var(--ease); }
.card:hover .imgwrap img { transform: scale(1.04); }
.card .body { padding: 24px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.card h3 { font-family: var(--display); font-size: 1.28rem; line-height: 1.16; margin-bottom: 8px; letter-spacing: -0.015em; }
.card .benefit { color: var(--text-soft); font-size: var(--t-60); flex: 1; }
.card .specs { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--hair); font-family: var(--mono); font-size: var(--t-50); color: var(--text-dim); line-height: 1.55; }
.card .pricerow { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin: 18px 0 16px; flex-wrap: wrap; }
.card .price { font-family: var(--display); font-weight: 700; font-size: 1.3rem; color: var(--text); }
.card .price small { display: block; font-family: var(--sans); font-size: var(--t-50); color: var(--text-dim); font-weight: 400; margin-top: 3px; letter-spacing: 0; }
.card .order {
  display: flex; align-items: center; justify-content: space-between; border-radius: var(--radius-sm); padding: 12px 16px;
  background: transparent; border: 1px solid var(--hair-2); color: var(--text);
  font-family: var(--sans); font-weight: 600; font-size: var(--t-60); transition: border-color 0.25s, background 0.25s, color 0.25s;
}
.card .order .arr { transition: transform 0.25s var(--ease); color: var(--ember); }
.card .order:hover { border-color: var(--ember); background: rgba(224,113,47,0.08); }
.card .order:hover .arr { transform: translateX(3px); }

/* ---------------------------------------------------------- trust strip */
.trust { border-top: 1px solid var(--hair); background: var(--ink-2); }
.trust .wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(24px, 3vw, 48px); }
.trust .cell { padding: 8px 0; }
.trust .cell .n { font-family: var(--display); font-weight: 700; font-size: 1.6rem; color: var(--text); margin-bottom: 8px; letter-spacing: -0.02em; }
.trust .cell .n span { color: var(--ember); }
.trust .cell p { font-size: var(--t-60); color: var(--text-soft); line-height: 1.55; }
@media (max-width: 760px) { .trust .wrap { grid-template-columns: 1fr 1fr; gap: 32px; } }

/* ---------------------------------------------------------- labs / demo */
.labs { border-top: 1px solid var(--hair); }
.labs .wrap { display: grid; grid-template-columns: 1.08fr 0.92fr; gap: clamp(40px, 6vw, 88px); align-items: center; }
.labs .kit-list { list-style: none; margin: 8px 0 0; }
.labs .kit-list li { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--hair); }
.labs .kit-list li:first-child { border-top: 1px solid var(--hair); }
.labs .kit-list li .ic { color: var(--ember); flex: none; margin-top: 4px; font-size: 0.7rem; }
.labs .kit-list li b { font-family: var(--display); color: var(--text); font-weight: 600; font-size: var(--t-100); }
.labs .kit-list li span.sub { color: var(--text-soft); font-size: var(--t-60); display: block; margin-top: 3px; }
.labs .demo-card {
  background: var(--surface); border: 1px solid var(--hair-2);
  border-radius: var(--radius); padding: clamp(28px, 4vw, 42px);
}
.labs .demo-card h3 { font-family: var(--display); font-size: var(--t-300); margin-bottom: 14px; letter-spacing: -0.02em; line-height: 1.1; }
.labs .demo-card p { color: var(--text-soft); margin-bottom: 24px; font-size: var(--t-60); }
.labs .demo-card .btn { width: 100%; justify-content: center; margin-bottom: 10px; }
.labs .demo-card .fine { font-family: var(--mono); font-size: var(--t-50); color: var(--text-dim); margin-top: 12px; text-align: center; }
@media (max-width: 880px) { .labs .wrap { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------- faq */
.faq { border-top: 1px solid var(--hair); background: var(--ink-2); }
.faq .wrap { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(40px, 6vw, 90px); align-items: start; }
.faq-list { border-top: 1px solid var(--hair); }
.faq-item { border-bottom: 1px solid var(--hair); }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 22px 0;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  font-family: var(--display); font-weight: 600; font-size: var(--t-200); letter-spacing: -0.01em; color: var(--text);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .mk { flex: none; width: 18px; height: 18px; position: relative; transition: transform 0.3s var(--ease); }
.faq-item summary .mk::before, .faq-item summary .mk::after { content: ""; position: absolute; background: var(--ember); }
.faq-item summary .mk::before { left: 0; right: 0; top: 50%; height: 1.5px; margin-top: -0.75px; }
.faq-item summary .mk::after { top: 0; bottom: 0; left: 50%; width: 1.5px; margin-left: -0.75px; transition: opacity 0.3s var(--ease); }
.faq-item[open] summary .mk::after { opacity: 0; }
.faq-item .ans { padding: 0 44px 24px 0; color: var(--text-soft); font-size: var(--t-60); max-width: 60ch; }
.faq-item .ans a { color: var(--ember); border-bottom: 1px solid var(--hair-warm); }
@media (max-width: 880px) { .faq .wrap { grid-template-columns: 1fr; gap: 32px; } }

/* ---------------------------------------------------------- custom / final CTA */
.custom { border-top: 1px solid var(--hair); text-align: center; }
.custom .wrap { max-width: 720px; }
.custom .h2 { margin-bottom: 18px; }
.custom .lead { margin: 0 auto 32px; }

/* ---------------------------------------------------------- footer */
footer.site {
  padding: 80px 0 48px; border-top: 1px solid var(--hair);
  background: var(--ink);
}
footer.site .top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 36px; margin-bottom: 48px; }
footer.site .brandblock { max-width: 360px; }
footer.site .brandblock .wm { font-family: var(--display); font-weight: 700; font-size: 1.4rem; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
footer.site .brandblock .wm .glyph { width: 22px; height: 22px; flex: none; }
footer.site .brandblock p { color: var(--text-soft); font-size: var(--t-60); }
footer.site .cols { display: flex; gap: clamp(40px, 8vw, 96px); flex-wrap: wrap; }
footer.site .col h5 { font-family: var(--mono); font-size: var(--t-50); letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 16px; font-weight: 500; }
footer.site .col a, footer.site .col p { display: block; color: var(--text-soft); font-size: var(--t-60); margin-bottom: 9px; }
footer.site .col a:hover { color: var(--text); }
footer.site .disclaimer { font-size: var(--t-50); color: var(--text-faint); line-height: 1.7; border-top: 1px solid var(--hair); padding-top: 26px; max-width: 92ch; }
footer.site .copy { margin-top: 22px; font-size: var(--t-50); color: var(--text-faint); }

/* ---------------------------------------------------------- exploded view */
.explode { border-top: 1px solid var(--hair); background: var(--ink-2); }
.explode-wrap { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(40px, 5vw, 80px); align-items: center; }
.explode-specs { list-style: none; margin-top: 28px; display: grid; gap: 0; }
.explode-specs li { display: flex; align-items: baseline; gap: 16px; border-top: 1px solid var(--hair); padding: 14px 0; }
.explode-specs b { font-family: var(--display); color: var(--text); font-size: var(--t-200); min-width: 8ch; letter-spacing: -0.01em; }
.explode-specs span { color: var(--text-soft); font-size: var(--t-60); }
.explode-stage {
  position: relative; aspect-ratio: 4 / 3.4; border-radius: var(--radius); overflow: hidden;
  background: radial-gradient(110% 90% at 50% 30%, #1d2126 0%, #131519 55%, #0d0e11 100%);
  border: 1px solid var(--hair-2);
}
.explode-stage .fallback-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; padding: 12%; display: none; }
.no-webgl .explode-stage .fallback-img, .no-js .explode-stage .fallback-img { display: block; }
.no-webgl .explode-stage .scene-canvas, .no-webgl .explode-stage .frame, .no-webgl .explode-stage .ex-label { display: none; }
.no-js .explode-stage .frame, .no-js .explode-stage .ex-label { display: none; }
.explode-stage .frame { position: absolute; inset: 16px; border: 1px solid rgba(127,147,166,0.20); border-radius: 8px; pointer-events: none; z-index: 4; }
.explode-stage .ex-label {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  font-family: var(--mono); font-size: var(--t-50); letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--text-dim); opacity: 0; transition: opacity 0.4s var(--ease); pointer-events: none;
}
.explode-stage .ex-tube { left: 12%; }
.explode-stage .ex-rod { right: 12%; }
.explode-stage.apart .ex-label { opacity: 1; }
@media (max-width: 880px) { .explode-wrap { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------- request a demo */
.demo { border-top: 1px solid var(--hair); background: var(--ink-2); }
.demo-wrap { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(40px, 6vw, 90px); align-items: start; }
.demo-intro .lead { margin-bottom: 16px; }
.demo-alt { font-size: var(--t-60); color: var(--text-dim); }
.demo-alt a { color: var(--ember); border-bottom: 1px solid var(--hair-warm); }
.demo-form { display: grid; gap: 16px; background: var(--surface); border: 1px solid var(--hair-2); border-radius: var(--radius); padding: clamp(24px, 3vw, 36px); }
.demo-form .field { display: grid; gap: 7px; }
.demo-form label { font-family: var(--mono); font-size: var(--t-50); letter-spacing: 0.06em; color: var(--text-dim); text-transform: uppercase; }
.demo-form input, .demo-form textarea, .demo-form select {
  font-family: var(--sans); font-size: var(--t-60); color: var(--text);
  background: var(--ink); border: 1px solid var(--hair-2); border-radius: var(--radius-sm);
  padding: 12px 14px; width: 100%; resize: vertical;
  transition: border-color 0.2s;
}
.demo-form select { appearance: none; cursor: pointer; }
.demo-form input:focus, .demo-form textarea:focus, .demo-form select:focus { outline: none; border-color: var(--ember); }
.demo-form .btn { margin-top: 6px; justify-content: center; }
.demo-form .hp { position: absolute; left: -9999px; }
@media (max-width: 880px) { .demo-wrap { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------- scroll progress */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 60;
  background: linear-gradient(90deg, var(--ember-deep), var(--ember-soft));
  transform: scaleX(0); transform-origin: 0 50%;
  will-change: transform;
}

/* ---------------------------------------------------------- custom cursor (desktop, fine pointer only) */
.cursor {
  position: fixed; top: 0; left: 0; z-index: 95;
  width: 30px; height: 30px; margin: -15px 0 0 -15px;
  border: 1px solid var(--ember); border-radius: 50%;
  pointer-events: none; opacity: 0;
  transition: width 0.22s var(--ease), height 0.22s var(--ease),
              margin 0.22s var(--ease), background 0.22s, opacity 0.3s;
  mix-blend-mode: difference;
}
.cursor.show { opacity: 0.9; }
.cursor.grow { width: 54px; height: 54px; margin: -27px 0 0 -27px; background: rgba(224,113,47,0.10); }
@media (hover: none), (pointer: coarse) { .cursor { display: none !important; } }
@media (prefers-reduced-motion: reduce) { .cursor { display: none !important; } }

/* magnetic buttons keep a smooth return */
.btn[data-magnetic] { will-change: transform; }

/* utility */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ---- Polish layer: tasteful hover interactions (additive, layout-safe) ---- */
.card { transition: transform .45s cubic-bezier(.23,1,.32,1), box-shadow .45s cubic-bezier(.23,1,.32,1), border-color .45s; }
.card:hover { transform: translateY(-6px); box-shadow: 0 30px 80px -34px rgba(224,113,47,.45), 0 12px 34px -20px rgba(0,0,0,.6); border-color: rgba(224,113,47,.4); }
.btn-primary { transition: transform .18s cubic-bezier(.23,1,.32,1), box-shadow .25s, filter .25s; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px -12px rgba(224,113,47,.7); filter: saturate(1.05); }
.btn-ghost { transition: transform .18s cubic-bezier(.23,1,.32,1), border-color .25s, color .25s, background .25s; }
.btn-ghost:hover { transform: translateY(-2px); border-color: rgba(239,139,76,.6); }
.order { transition: gap .25s, color .25s, transform .2s; }
.order:hover { color: var(--ember-soft); transform: translateX(2px); }
.order .arr { transition: transform .25s; }
.order:hover .arr { transform: translateX(4px); }
@media (prefers-reduced-motion: reduce) {
  .card, .btn-primary, .btn-ghost, .order, .order .arr { transition: none; }
}