/* SP Manufacturing — modern home page.
   Dark graphite, electric blue, small 3D motion. Everything animated is off under reduced motion. */

:root {
  --bg:       #0a0d0f;
  --bg-2:     #11161a;
  --bg-3:     #182026;
  --panel:    rgba(255,255,255,.035);
  --panel-2:  rgba(255,255,255,.06);
  --line:     rgba(255,255,255,.09);
  --line-2:   rgba(255,255,255,.16);
  --text:     #e8ecee;
  --text-2:   #a7b1b6;
  --text-3:   #6f7b81;
  --accent:   #2563eb;
  --accent-2: #4d8dff;
  --cyan:     #5fd4ff;
  --green:    #3ddc84;
  --amber:    #ffb547;
  --paper:    #f3f5f6;
  --ink:      #0f1315;

  --wrap: 1240px;
  --r: 18px;
  --sans: "Inter Tight", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --ease: cubic-bezier(.2,.7,.2,1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0; font-family: var(--sans); font-size: 17px; line-height: 1.65;
  color: var(--text-2); background: var(--bg); -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, video { max-width: 100%; display: block; }
a { color: var(--text); text-decoration-color: var(--accent); text-underline-offset: 3px; }
a:hover { color: #fff; }
h1, h2, h3, h4 { color: #fff; font-weight: 650; letter-spacing: -0.03em; line-height: 1.06; margin: 0 0 .55em; }
h1 { font-size: clamp(2.6rem, 6.4vw, 5.4rem); letter-spacing: -0.045em; }
h2 { font-size: clamp(2rem, 4.2vw, 3.4rem); }
h3 { font-size: 1.2rem; letter-spacing: -0.015em; line-height: 1.25; }
p { margin: 0 0 1.1em; }
strong { color: var(--text); font-weight: 600; }
::selection { background: var(--accent); color: #fff; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 clamp(16px, 4vw, 40px); }
.skip { position: absolute; left: -999px; top: 0; background: var(--accent); color: #fff; padding: .6rem 1rem; z-index: 100; }
.skip:focus { left: 1rem; top: 1rem; }

.eyebrow {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent-2); margin: 0 0 1.2rem; display: inline-flex; align-items: center; gap: .6rem;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: currentColor; }
.grad {
  background: linear-gradient(100deg, #fff 5%, #7cc4ff 40%, var(--accent-2) 75%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- buttons ---------- */
.btn {
  --b: var(--line-2);
  display: inline-flex; align-items: center; gap: .55rem; padding: .85rem 1.35rem;
  border-radius: 999px; border: 1px solid var(--b); color: #fff; text-decoration: none;
  font-weight: 600; font-size: .95rem; line-height: 1; white-space: nowrap;
  transition: transform .25s var(--ease), background .25s, border-color .25s, box-shadow .25s;
}
.btn:hover { transform: translateY(-2px); border-color: #fff; color: #fff; }
.btn .arr { transition: transform .25s var(--ease); }
.btn:hover .arr { transform: translateX(4px); }
.btn-accent { background: var(--accent); --b: var(--accent); box-shadow: 0 10px 30px -10px rgba(37,99,235,.7); }
.btn-accent:hover { background: var(--accent-2); border-color: var(--accent-2); box-shadow: 0 16px 40px -10px rgba(37,99,235,.85); }
.btn-glass { background: rgba(255,255,255,.05); backdrop-filter: blur(8px); }

/* ---------- header ---------- */
.m-header {
  position: fixed; inset: 0 0 auto; z-index: 50; transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.m-header.scrolled {
  background: rgba(10,13,15,.72); backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px); border-color: var(--line);
}
.m-header .wrap { display: flex; align-items: center; gap: 1.5rem; height: 72px; }
.brand { display: inline-flex; align-items: center; gap: .7rem; text-decoration: none; color: #fff; }
.brand svg { width: 34px; height: 34px; flex: none; }
.brand b { font-weight: 700; letter-spacing: .02em; font-size: 1.02rem; }
.brand small { display: block; font-family: var(--mono); font-size: .6rem; letter-spacing: .16em; color: var(--text-3); font-weight: 400; }
.nav { margin-left: auto; display: flex; align-items: center; gap: .3rem; }
.nav a { color: var(--text-2); text-decoration: none; font-size: .93rem; padding: .5rem .8rem; border-radius: 999px; transition: color .2s, background .2s; }
.nav a:hover, .nav a[aria-current] { color: #fff; background: var(--panel-2); }
.nav .tel { font-family: var(--mono); font-size: .82rem; }
.nav .btn { margin-left: .5rem; padding: .65rem 1.1rem; color: #fff; }
.nav .btn:hover { background: var(--accent-2); }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--line-2); color: #fff; border-radius: 999px; padding: .5rem 1rem; font: inherit; font-size: .9rem; }

@media (max-width: 960px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: rgba(10,13,15,.96); backdrop-filter: blur(14px); padding: 1rem clamp(16px,4vw,40px) 1.5rem;
    border-bottom: 1px solid var(--line); display: none;
  }
  .nav.open { display: flex; }
  .nav .btn { margin: .5rem 0 0; justify-content: center; }
  .m-header:has(.nav.open) { background: rgba(10,13,15,.96); }
}

/* ---------- hero ---------- */
.m-hero {
  position: relative; min-height: 100svh; display: flex; align-items: center; overflow: hidden;
  padding: 110px 0 70px; isolation: isolate;
}
.m-hero::before { /* machined floor grid */
  content: ""; position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(60% 55% at 72% 45%, rgba(37,99,235,.16), transparent 70%),
    radial-gradient(50% 60% at 20% 110%, rgba(90,120,140,.18), transparent 70%),
    var(--bg);
}
.m-hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(70% 60% at 65% 50%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(70% 60% at 65% 50%, #000 20%, transparent 75%);
}
.m-hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 2rem; align-items: center; width: 100%; }
.hero-copy { position: relative; z-index: 2; }
.hero-copy .lede { font-size: clamp(1.05rem, 1.5vw, 1.2rem); max-width: 36rem; color: var(--text-2); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.hero-note { margin-top: 2.2rem; display: flex; gap: 1.6rem; flex-wrap: wrap; font-family: var(--mono); font-size: .75rem; letter-spacing: .06em; color: var(--text-3); text-transform: uppercase; }
.hero-note span::before { content: "●"; color: var(--green); margin-right: .5rem; font-size: .6rem; vertical-align: 2px; }

.hero-stage { position: relative; aspect-ratio: 1 / 0.92; width: 100%; }
#hero3d { position: absolute; inset: -10% -6% -4% -8%; opacity: 0; transition: opacity 1.2s ease .2s; }
#hero3d.ready { opacity: 1; }
#hero3d canvas { width: 100% !important; height: 100% !important; display: block; }
#hero3d.no-webgl { opacity: 1; background: url(../photos/img-0057.jpg) center/cover; border-radius: var(--r); inset: 0; }
.hud {
  position: absolute; left: 4%; bottom: 2%; z-index: 3; display: flex; flex-direction: column; gap: .15rem;
  font-family: var(--mono); font-size: .72rem; color: var(--text-2); letter-spacing: .05em;
  padding: .85rem 1rem; border-radius: 12px; border: 1px solid var(--line-2);
  background: rgba(10,13,15,.55); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  min-width: 13.5rem;
}
.hud .hud-title { color: #fff; display: flex; justify-content: space-between; gap: 1rem; margin-bottom: .35rem; }
.hud .hud-title i { font-style: normal; color: var(--text-3); }
.hud #hud-readout { display: grid; grid-template-columns: 1fr 1fr; gap: .1rem 1rem; }
.hud .ok { color: var(--green); } .hud .warn { color: var(--amber); }
.hud .rec { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); display: inline-block; margin-right: .45rem; animation: blink 1.4s infinite; }
@keyframes blink { 50% { opacity: .2; } }

.scroll-cue { position: absolute; left: 50%; bottom: 22px; translate: -50% 0; width: 22px; height: 36px; border: 1px solid var(--line-2); border-radius: 12px; }
.scroll-cue::after { content: ""; position: absolute; left: 50%; top: 7px; width: 3px; height: 7px; margin-left: -1.5px; border-radius: 2px; background: #fff; animation: cue 1.8s var(--ease) infinite; }
@keyframes cue { 0% { transform: translateY(0); opacity: 1; } 80% { transform: translateY(12px); opacity: 0; } 100% { opacity: 0; } }

/* intro stagger */
.intro > * { opacity: 0; transform: translateY(24px); animation: rise .9s var(--ease) forwards; }
.intro > *:nth-child(2) { animation-delay: .08s; } .intro > *:nth-child(3) { animation-delay: .16s; }
.intro > *:nth-child(4) { animation-delay: .24s; } .intro > *:nth-child(5) { animation-delay: .32s; }
@keyframes rise { to { opacity: 1; transform: none; } }

@media (max-width: 960px) {
  .m-hero { min-height: auto; padding-top: 100px; }
  .m-hero .wrap { grid-template-columns: 1fr; }
  .hero-stage { order: -1; aspect-ratio: 1 / 0.75; margin: -10px 0 -10px; }
  #hero3d { inset: -6% -10%; }
  .hud { font-size: .64rem; min-width: 0; left: 0; bottom: -6%; padding: .6rem .8rem; }
  .scroll-cue { display: none; }
}

/* ---------- stat band + marquee ---------- */
.stats { border-block: 1px solid var(--line); background: var(--bg-2); }
.stats .wrap { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 2rem 1.2rem; border-left: 1px solid var(--line); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat .v { font-size: clamp(1.8rem, 3.6vw, 2.8rem); color: #fff; font-weight: 600; letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.stat .v small { font-size: .5em; color: var(--accent-2); margin-left: .1em; letter-spacing: 0; }
.stat .l { font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--text-3); margin-top: .6rem; }
@media (max-width: 760px) {
  .stats .wrap { grid-template-columns: 1fr 1fr; }
  .stat { padding: 1.4rem .9rem; }
  .stat:nth-child(3) { border-left: 0; padding-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
}

.marquee { overflow: hidden; border-bottom: 1px solid var(--line); padding: 1rem 0; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee ul { display: flex; gap: 3rem; width: max-content; margin: 0; padding: 0; list-style: none; animation: slide 40s linear infinite; }
.marquee li { font-family: var(--mono); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--text-2); white-space: nowrap; display: flex; align-items: center; gap: 3rem; }
.marquee li::after { content: "+"; color: var(--accent); font-weight: 700; }
@keyframes slide { to { transform: translateX(-50%); } }

/* ---------- sections ---------- */
.sec { padding: clamp(80px, 11vw, 150px) 0; position: relative; }
.sec-head { max-width: 46rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.sec-head p { font-size: 1.1rem; }
.sec-alt { background: var(--bg-2); }

/* reveal */
[data-reveal] { opacity: 0; transform: translateY(32px) scale(.98); transition: opacity .9s var(--ease), transform .9s var(--ease); transition-delay: var(--d, 0s); }
[data-reveal].in { opacity: 1; transform: none; }

/* ---------- differentiator cards (3D tilt) ---------- */
.cards { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1rem; perspective: 1200px; }
.cards > * { grid-column: span 2; }
.cards > *:nth-child(4), .cards > *:nth-child(5) { grid-column: span 3; }
.card {
  --rx: 0deg; --ry: 0deg; --mx: 50%; --my: 0%;
  position: relative; padding: 2rem 1.8rem 1.8rem; border-radius: var(--r);
  background: linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.015));
  border: 1px solid var(--line); transform-style: preserve-3d;
  transform: rotateX(var(--rx)) rotateY(var(--ry));
  transition: transform .5s var(--ease), border-color .3s, opacity .9s var(--ease);
  overflow: hidden;
}
.card:hover { transition: transform .12s linear, border-color .3s; border-color: var(--line-2); }
.card::before { /* moving glare */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .3s;
  background: radial-gradient(420px circle at var(--mx) var(--my), rgba(77,141,255,.16), transparent 45%);
}
.card:hover::before { opacity: 1; }
.card .num { font-family: var(--mono); font-size: .78rem; color: var(--accent-2); display: block; margin-bottom: 2.4rem; transform: translateZ(30px); }
.card h3 { transform: translateZ(40px); }
.card p { font-size: .96rem; margin: 0; transform: translateZ(20px); }
.card .ico { position: absolute; right: 1.4rem; top: 1.5rem; width: 38px; height: 38px; color: var(--text-3); transform: translateZ(50px); }
.card[data-reveal] { transform: translateY(32px) rotateX(8deg); }
.card[data-reveal].in { transform: rotateX(var(--rx)) rotateY(var(--ry)); }
@media (max-width: 960px) { .cards { grid-template-columns: 1fr 1fr; } .cards > *, .cards > *:nth-child(n) { grid-column: span 1; } .cards > *:last-child { grid-column: span 2; } }
@media (max-width: 620px) { .cards { grid-template-columns: 1fr; } .cards > *:last-child { grid-column: span 1; } }

/* ---------- split layout ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 6rem); align-items: center; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.ticks { list-style: none; padding: 0; margin: 1.6rem 0 2rem; display: grid; gap: .75rem; }
.ticks li { position: relative; padding-left: 2rem; font-size: .98rem; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: .45em; width: 16px; height: 16px; border-radius: 50%;
  background: rgba(37,99,235,.15) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.2l2.2 2.2 4.8-4.8' fill='none' stroke='%234d8dff' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/100% no-repeat;
}
.chips { list-style: none; padding: 0; margin: 1.5rem 0 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.chips li { border: 1px solid var(--line-2); border-radius: 999px; padding: .45rem .9rem; font-size: .88rem; color: var(--text); background: var(--panel); transition: border-color .2s, background .2s, transform .2s var(--ease); }
.chips li:hover { border-color: var(--accent); background: rgba(37,99,235,.1); transform: translateY(-2px); }

/* 3D photo frame that settles as it scrolls to centre */
.frame3d { perspective: 1400px; }
.frame3d .plate {
  --sp: 0;
  border-radius: var(--r); overflow: hidden; border: 1px solid var(--line-2);
  box-shadow: 0 50px 100px -40px rgba(0,0,0,.9), 0 0 0 1px rgba(255,255,255,.03);
  transform: rotateY(calc(var(--sp) * -14deg)) rotateX(calc(var(--sp) * 8deg)) translateZ(0);
  transition: transform .15s linear; position: relative;
}
.frame3d .plate img { width: 100%; height: auto; }
.frame3d .plate::after { content: ""; position: absolute; inset: 0; background: linear-gradient(130deg, rgba(255,255,255,.12), transparent 40%); pointer-events: none; }
.frame3d .tag {
  position: absolute; right: -12px; bottom: 24px; font-family: var(--mono); font-size: .72rem; letter-spacing: .08em;
  background: var(--accent); color: #fff; padding: .5rem .8rem; border-radius: 8px; box-shadow: 0 12px 30px -8px rgba(37,99,235,.7);
  animation: bob 5s ease-in-out infinite;
}
.frame3d-wrap { position: relative; }
@keyframes bob { 50% { transform: translateY(-8px); } }

/* ---------- videos ---------- */
.videos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.m-video { margin: 0; border-radius: var(--r); overflow: hidden; background: var(--bg-3); border: 1px solid var(--line); transition: transform .4s var(--ease), border-color .3s; }
.m-video:hover { transform: translateY(-6px); border-color: var(--line-2); }
.m-video video { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; background: #000; }
.m-video figcaption { padding: 1.2rem 1.3rem 1.4rem; font-size: .92rem; }
.m-video figcaption strong { display: block; color: #fff; margin-bottom: .3rem; font-size: 1rem; }
@media (max-width: 900px) { .videos { grid-template-columns: 1fr; } }

/* ---------- inspection (light section) ---------- */
.light { background: var(--paper); color: #3b464c; }
.light h2, .light h3, .light strong { color: var(--ink); }
.light .eyebrow { color: var(--accent); }
.light .btn { color: var(--ink); --b: rgba(15,19,21,.2); }
.light .btn:hover { border-color: var(--ink); color: var(--ink); }
.report-float { perspective: 1200px; display: flex; justify-content: center; }
.report-float .sheet {
  background: #fff; border-radius: 14px; padding: 14px; max-width: 500px;
  box-shadow: 0 60px 80px -40px rgba(15,19,21,.45), 0 0 0 1px rgba(15,19,21,.06);
  transform: rotateY(-12deg) rotateX(6deg); animation: floaty 9s ease-in-out infinite; transform-style: preserve-3d;
}
.report-float .sheet img { border-radius: 8px; }
@keyframes floaty { 0%,100% { transform: rotateY(-12deg) rotateX(6deg) translateY(0); } 50% { transform: rotateY(-6deg) rotateX(3deg) translateY(-12px); } }
.note-box { border-left: 3px solid var(--accent); padding: .2rem 0 .2rem 1.1rem; margin: 1.6rem 0 2rem; font-size: .96rem; }

/* ---------- gallery ---------- */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 240px; gap: 1rem; perspective: 1400px; }
.gallery figure { margin: 0; position: relative; border-radius: var(--r); overflow: hidden; background: var(--bg-3); --rx: 0deg; --ry: 0deg; transform: rotateX(var(--rx)) rotateY(var(--ry)); transition: transform .5s var(--ease), opacity .9s var(--ease); }
.gallery figure:hover { transition: transform .12s linear; }
.gallery figure.tall { grid-row: span 2; }
.gallery figure.wide { grid-column: span 2; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease), filter .5s; filter: saturate(.9); }
.gallery figure:hover img { transform: scale(1.06); filter: saturate(1.1); }
.gallery figcaption {
  position: absolute; inset: auto 0 0 0; padding: 2.2rem 1.2rem 1.1rem; font-size: .84rem; line-height: 1.45; color: var(--text-2);
  background: linear-gradient(transparent, rgba(5,7,8,.92)); transform: translateY(calc(100% - 4.3rem)); transition: transform .45s var(--ease);
}
.gallery figcaption strong { display: block; color: #fff; font-size: .98rem; margin-bottom: .5rem; }
.gallery figure:hover figcaption, .gallery figure:focus-within figcaption { transform: none; }
@media (max-width: 900px) { .gallery { grid-template-columns: 1fr 1fr; grid-auto-rows: 200px; } }
@media (max-width: 560px) {
  .gallery { grid-template-columns: 1fr; grid-auto-rows: 260px; }
  .gallery figure.tall, .gallery figure.wide { grid-row: auto; grid-column: auto; }
  .gallery figcaption { transform: none; }
}
@media (hover: none) { .gallery figcaption { transform: none; } }

/* ---------- process timeline ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; position: relative; counter-reset: s; }
.steps::before { content: ""; position: absolute; top: 22px; left: 22px; right: 22px; height: 1px; background: var(--line-2); }
.steps::after { content: ""; position: absolute; top: 22px; left: 22px; height: 1px; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width 1.8s var(--ease) .2s; box-shadow: 0 0 12px var(--accent); }
.steps.in::after { width: calc(100% - 44px); }
.step { position: relative; counter-increment: s; }
.step::before {
  content: "0" counter(s); display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--line-2); font-family: var(--mono); font-size: .8rem; color: #fff; margin-bottom: 1.5rem; position: relative; z-index: 1;
  transition: border-color .4s, background .4s; transition-delay: calc(var(--i) * .4s + .2s);
}
.steps.in .step::before { border-color: var(--accent); background: #0b1428; }
.step p { font-size: .95rem; }
@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr; gap: 0; }
  .steps::before, .steps::after { top: 22px; bottom: 22px; left: 22px; right: auto; width: 1px; height: auto; }
  .steps::after { height: 0; transition: height 1.8s var(--ease) .2s; }
  .steps.in::after { width: 1px; height: calc(100% - 44px); }
  .step { padding-left: 4.2rem; padding-bottom: 1.2rem; }
  .step::before { position: absolute; left: 0; top: 0; }
}
.callout { margin-top: 3rem; padding: 1.6rem 1.8rem; border-radius: var(--r); border: 1px solid var(--line); background: var(--panel); display: flex; gap: 1.2rem; align-items: flex-start; }
.callout svg { flex: none; width: 28px; height: 28px; color: var(--accent-2); margin-top: .1rem; }
.callout p:last-child { margin: 0; }

/* ---------- software stack ---------- */
.stack { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; perspective: 1200px; }
.stack .card { padding-top: 1.6rem; }
.stack .card .num { margin-bottom: 1.6rem; }
.chain { margin-top: 3rem; display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; font-family: var(--mono); font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; }
.chain span { padding: .55rem .9rem; border: 1px solid var(--line-2); border-radius: 999px; color: var(--text); background: var(--panel); }
.chain i { width: 34px; height: 1px; background: linear-gradient(90deg, var(--accent), transparent); position: relative; overflow: hidden; }
.chain i::after { content: ""; position: absolute; inset: 0; width: 40%; background: #fff; animation: flow 1.6s linear infinite; }
@keyframes flow { from { transform: translateX(-100%); } to { transform: translateX(250%); } }
@media (max-width: 960px) { .stack { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .stack { grid-template-columns: 1fr; } .chain i { width: 16px; } }

/* ---------- CTA ---------- */
.cta { padding: clamp(60px, 9vw, 110px) 0; }
.cta-box {
  position: relative; border-radius: 28px; padding: clamp(2.2rem, 6vw, 4.5rem); overflow: hidden; isolation: isolate;
  background: radial-gradient(80% 120% at 100% 0%, rgba(37,99,235,.45), transparent 60%), var(--bg-3);
  border: 1px solid var(--line-2); display: flex; justify-content: space-between; align-items: center; gap: 2rem; flex-wrap: wrap;
}
.cta-box::before { /* rotating light around the edge */
  content: ""; position: absolute; inset: -60%; z-index: -1;
  background: conic-gradient(from 0deg, transparent 0 70%, rgba(77,141,255,.5) 80%, transparent 90%);
  animation: spin 8s linear infinite;
}
.cta-box::after { content: ""; position: absolute; inset: 1px; border-radius: 27px; z-index: -1; background: radial-gradient(80% 120% at 100% 0%, rgba(37,99,235,.3), transparent 60%), var(--bg-2); }
@keyframes spin { to { transform: rotate(360deg); } }
.cta-box h2 { margin-bottom: .4em; }
.cta-box p { max-width: 34rem; margin: 0; font-size: 1.08rem; }

/* ---------- footer ---------- */
.m-footer { border-top: 1px solid var(--line); padding: 4rem 0 2rem; font-size: .92rem; }
.m-footer .grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 2rem; }
.m-footer h4 { font-family: var(--mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--text-3); font-weight: 400; margin-bottom: 1.1rem; }
.m-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.m-footer a { color: var(--text-2); text-decoration: none; }
.m-footer a:hover { color: #fff; }
.m-footer address { font-style: normal; line-height: 1.9; }
.m-footer .brand { margin-bottom: 1rem; }
.m-footer .bottom { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--line); display: flex; gap: 1.5rem; flex-wrap: wrap; justify-content: space-between; font-family: var(--mono); font-size: .72rem; letter-spacing: .06em; color: var(--text-3); }
@media (max-width: 760px) { .m-footer .grid { grid-template-columns: 1fr; } }

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .intro > *, [data-reveal] { opacity: 1 !important; transform: none !important; }
  .marquee ul { flex-wrap: wrap; width: auto; }
}
.callout + .callout { margin-top: 1rem; }

/* ---------- Multus simulation ---------- */
.sim-sec { background: radial-gradient(70% 60% at 50% 40%, rgba(37,99,235,.10), transparent 70%), var(--bg); }
.sim { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: 1rem; align-items: stretch; }
.sim-stage {
  position: relative; aspect-ratio: 16 / 9; border-radius: var(--r); overflow: hidden;
  border: 1px solid var(--line-2); background: linear-gradient(180deg, #0f151b, #080b0e);
  cursor: grab; touch-action: pan-y;
}
.sim-stage:active { cursor: grabbing; }
.sim-stage canvas { position: absolute; inset: 0; width: 100% !important; height: 100% !important; opacity: 0; transition: opacity 1s; }
.sim-stage.ready canvas { opacity: 1; }
.sim-stage.no-webgl { background: url(../photos/img-0056.jpg) center/cover; }
.sim-hud {
  position: absolute; z-index: 2; font-family: var(--mono); font-size: .74rem; letter-spacing: .04em; color: var(--text);
  background: rgba(8,11,14,.6); border: 1px solid var(--line-2); border-radius: 10px; padding: .55rem .8rem;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); pointer-events: none;
}
.sim-hud-op { left: 14px; top: 14px; display: flex; align-items: center; gap: .6rem; }
.sim-live { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); }
.sim-hud-axes { right: 14px; top: 14px; display: grid; grid-template-columns: auto auto; gap: .1rem .8rem; font-variant-numeric: tabular-nums; }
.sim-hud-axes span { color: var(--accent-2); }
.sim-hud-axes b { font-weight: 400; text-align: right; min-width: 6.5em; }
.sim-play {
  position: absolute; left: 14px; bottom: 14px; z-index: 2; display: inline-flex; align-items: center; gap: .45rem;
  font: 500 .8rem var(--sans); color: #fff; background: rgba(8,11,14,.6); border: 1px solid var(--line-2);
  border-radius: 999px; padding: .45rem .85rem; cursor: pointer; backdrop-filter: blur(8px);
}
.sim-play svg { width: 14px; height: 14px; fill: currentColor; }
.sim-note { position: absolute; right: 14px; bottom: 10px; margin: 0; z-index: 2; font-family: var(--mono); font-size: .66rem; color: var(--text-3); letter-spacing: .06em; text-transform: uppercase; pointer-events: none; }
.sim-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; align-content: start; }
.sim-steps button {
  width: 100%; text-align: left; display: grid; grid-template-columns: 2rem 1fr; column-gap: .4rem; align-items: baseline;
  font: 600 .95rem var(--sans); color: var(--text); background: var(--panel); border: 1px solid var(--line);
  border-radius: 12px; padding: .8rem .9rem; cursor: pointer; transition: border-color .2s, background .2s, transform .2s var(--ease);
}
.sim-steps b { font: 400 .72rem var(--mono); color: var(--text-3); }
.sim-steps small { grid-column: 2; font: 400 .78rem var(--sans); color: var(--text-3); margin-top: .15rem; }
.sim-steps button:hover { border-color: var(--line-2); transform: translateX(3px); }
.sim-steps button[aria-current="step"] { border-color: var(--accent); background: rgba(37,99,235,.14); }
.sim-steps button[aria-current="step"] b { color: var(--accent-2); }
.sim-specs { margin: 1.2rem 0 0; display: grid; grid-template-columns: repeat(6, 1fr); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.sim-specs div { padding: 1rem 1.1rem; border-left: 1px solid var(--line); }
.sim-specs div:first-child { border-left: 0; }
.sim-specs dt { font-family: var(--mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--text-3); }
.sim-specs dd { margin: .3rem 0 0; color: #fff; font-weight: 600; font-size: 1.02rem; }
@media (max-width: 960px) {
  .sim { grid-template-columns: 1fr; }
  .sim-steps { grid-template-columns: repeat(5, minmax(150px, 1fr)); overflow-x: auto; padding-bottom: .3rem; }
  .sim-specs { grid-template-columns: repeat(3, 1fr); }
  .sim-specs div:nth-child(4) { border-left: 0; }
  .sim-specs div:nth-child(n+4) { border-top: 1px solid var(--line); }
}
@media (max-width: 620px) {
  .sim-stage { aspect-ratio: 4 / 3.4; }
  .sim-hud { font-size: .64rem; padding: .4rem .55rem; }
  .sim-hud-axes b { min-width: 5.5em; }
  .sim-hud-op { max-width: 55%; }
  .sim-note { display: none; }
  .sim-specs { grid-template-columns: repeat(2, 1fr); }
  .sim-specs div:nth-child(n) { border-left: 0; border-top: 1px solid var(--line); }
  .sim-specs div:nth-child(even) { border-left: 1px solid var(--line); }
  .sim-specs div:nth-child(-n+2) { border-top: 0; }
}