/* ==========================================================================
   Thunderstack AI · shared design system
   Cold observatory palette. No warm hues anywhere in this file by design.
   ========================================================================== */

:root{
  /* ground */
  --void:#04060A;
  --abyss:#070B12;
  --deep:#0B111B;
  --panel:#101827;
  --panel-2:#151F31;
  --raised:#1B2739;

  /* ink */
  --text:#E7EEF7;
  --muted:#93A5BB;
  --dim:#5A6C84;
  --faint:#3A4759;

  /* lines */
  --line:rgba(231,238,247,.11);
  --line-soft:rgba(231,238,247,.055);
  --line-hard:rgba(231,238,247,.22);

  /* signal */
  --cyan:#4FE3E8;
  --blue:#5B9DFF;
  --violet:#9B8CFF;
  --mint:#63E6A8;
  --arc:linear-gradient(115deg,#4FE3E8 0%,#5B9DFF 46%,#9B8CFF 100%);

  /* type */
  --display:"Archivo",system-ui,sans-serif;
  --sans:"Instrument Sans",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,monospace;

  /* metrics */
  --shell:1280px;
  --gut:34px;
  --nav-h:66px;
  --ease:cubic-bezier(.22,1,.36,1);
  --ease-io:cubic-bezier(.65,.05,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:clip}
body{
  margin:0;background:var(--void);color:var(--text);
  font-family:var(--sans);font-size:16.5px;line-height:1.6;font-weight:400;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--display);letter-spacing:-.035em;line-height:.98}
p{margin:0}
::selection{background:var(--cyan);color:var(--void)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:4px;border-radius:2px}

/* scrollbar */
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-track{background:var(--void)}
::-webkit-scrollbar-thumb{background:#1D2A3C;border:3px solid var(--void);border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:#2A3A50}

.shell{width:100%;max-width:var(--shell);margin:0 auto;padding-inline:var(--gut);position:relative;z-index:2}

/* ---------- atmosphere ---------------------------------------------------- */
.sky{position:fixed;inset:0;z-index:0;pointer-events:none}
#storm{position:absolute;inset:0;width:100%;height:100%;display:block;opacity:.9;
  -webkit-mask-image:radial-gradient(128% 104% at 52% 6%,#000 18%,rgba(0,0,0,.42) 58%,transparent 90%);
  mask-image:radial-gradient(128% 104% at 52% 6%,#000 18%,rgba(0,0,0,.42) 58%,transparent 90%)}
.sky::after{ /* graticule, etched instrument glass */
  content:"";position:absolute;inset:0;opacity:.42;
  background-image:linear-gradient(rgba(231,238,247,.022) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(231,238,247,.022) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(120% 90% at 50% 0%,#000 25%,transparent 78%);
}
.grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.055;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/></filter><rect width='180' height='180' filter='url(%23n)'/></svg>")}

/* ---------- type utilities ------------------------------------------------ */
.mono{font-family:var(--mono);font-size:10.5px;font-weight:500;letter-spacing:.24em;
  text-transform:uppercase;color:var(--dim)}
.mono-cy{color:var(--cyan)}
.mono-vi{color:var(--violet)}
.mono-bl{color:var(--blue)}
.mono-mi{color:var(--mint)}

.eyebrow{display:inline-flex;align-items:center;gap:11px}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor;opacity:.55}

.h-xl{font-variation-settings:"wdth" 118,"wght" 800;font-size:clamp(46px,7.6vw,104px);
  letter-spacing:-.045em;line-height:.9}
.h-lg{font-variation-settings:"wdth" 106,"wght" 700;font-size:clamp(34px,5vw,62px);letter-spacing:-.038em}
.h-md{font-variation-settings:"wdth" 102,"wght" 700;font-size:clamp(25px,3vw,36px);letter-spacing:-.03em}
.h-sm{font-variation-settings:"wdth" 100,"wght" 650;font-size:20px;letter-spacing:-.022em;line-height:1.16}

.lede{color:var(--muted);font-size:clamp(17px,1.5vw,20px);line-height:1.52;font-weight:400}
.dim{color:var(--muted)}
.gradient-text{background:var(--arc);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- nav ----------------------------------------------------------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:90;height:var(--nav-h);
  transition:background .4s var(--ease),border-color .4s var(--ease),backdrop-filter .4s var(--ease);
  border-bottom:1px solid transparent}
.nav.stuck{background:rgba(4,6,10,.72);backdrop-filter:blur(16px) saturate(140%);border-bottom-color:var(--line)}
.nav-in{max-width:var(--shell);margin:0 auto;padding-inline:var(--gut);height:100%;
  display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:11px}
.brand-glyph{width:22px;height:22px;flex:none;position:relative}
.brand-glyph svg{width:100%;height:100%;display:block}
.brand-txt{font-family:var(--display);font-variation-settings:"wdth" 112,"wght" 750;
  font-size:14.5px;letter-spacing:.01em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:5px}
.nav-links a{font-family:var(--mono);font-size:10.5px;font-weight:500;letter-spacing:.2em;
  text-transform:uppercase;color:var(--muted);padding:9px 13px;position:relative;
  transition:color .28s var(--ease)}
.nav-links a::after{content:"";position:absolute;left:13px;right:13px;bottom:4px;height:1px;
  background:var(--cyan);transform:scaleX(0);transform-origin:0 50%;transition:transform .4s var(--ease)}
.nav-links a:hover,.nav-links a[aria-current]{color:var(--text)}
.nav-links a:hover::after,.nav-links a[aria-current]::after{transform:scaleX(1)}
.nav-cta{margin-left:8px}

/* ---------- buttons ------------------------------------------------------- */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--mono);font-size:10.5px;font-weight:500;letter-spacing:.2em;text-transform:uppercase;
  padding:14px 22px;border:1px solid transparent;cursor:pointer;overflow:hidden;isolation:isolate;
  transition:transform .5s var(--ease),color .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease);
  will-change:transform}
.btn-primary{color:var(--void);background:var(--arc);background-size:180% 180%;
  animation:drift 9s ease-in-out infinite alternate}
.btn-primary:hover{background-position:100% 0}
@keyframes drift{to{background-position:100% 50%}}
.btn-ghost{color:var(--text);border-color:var(--line-hard);background:rgba(231,238,247,.02)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(79,227,232,.06)}
.btn-quiet{color:var(--muted);border-color:var(--line);padding:12px 18px}
.btn-quiet:hover{color:var(--text);border-color:var(--muted)}
.btn-sm{padding:10px 16px;font-size:10px}
.btn-arrow{transition:transform .45s var(--ease)}
.btn:hover .btn-arrow{transform:translateX(4px)}
.btn-row{display:flex;flex-wrap:wrap;gap:11px}

/* ---------- reveal -------------------------------------------------------- */
.rv{opacity:0;transform:translateY(26px);
  transition:opacity 1s var(--ease),transform 1s var(--ease);
  transition-delay:var(--d,0ms)}
.rv.in{opacity:1;transform:none}
.rv-line{clip-path:inset(0 0 110% 0);transform:translateY(.24em);
  transition:clip-path 1.15s var(--ease),transform 1.15s var(--ease);transition-delay:var(--d,0ms)}
.rv-line.in{clip-path:inset(-30% -20% -30% -20%);transform:none}
.rv-rule{transform:scaleX(0);transform-origin:0 50%;
  transition:transform 1.2s var(--ease);transition-delay:var(--d,0ms)}
.rv-rule.in{transform:scaleX(1)}

/* ---------- section furniture --------------------------------------------- */
.sec{position:relative;padding-block:clamp(80px,10vw,140px)}
.sec-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;
  gap:26px;padding-bottom:28px;margin-bottom:46px;border-bottom:1px solid var(--line)}
.sec-head .h-lg{max-width:18ch}
.rule{height:1px;background:var(--line);width:100%}

/* ---------- hero ---------------------------------------------------------- */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;
  padding-top:calc(var(--nav-h) + 40px);padding-bottom:40px}
.hero-word{font-family:var(--display);font-variation-settings:"wdth" 125,"wght" 800;
  text-transform:uppercase;font-size:clamp(52px,13.4vw,196px);line-height:.82;letter-spacing:-.05em;
  margin-bottom:clamp(28px,3.4vw,44px)}
/* the mask needs room below the baseline or the tight line-height clips the glyphs */
.hero-word span{display:block;overflow:hidden;padding-bottom:.1em;margin-bottom:-.1em}
.hero-word b{display:block;font-weight:inherit;transform:translateY(105%);
  transition:transform 1.25s var(--ease);transition-delay:var(--d,0ms)}
.hero-word.in b{transform:none}
.hero-word .stroke{color:transparent;-webkit-text-stroke:2px rgba(231,238,247,.62)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.82fr);gap:clamp(30px,5vw,74px);
  align-items:end}
.hero-grid>*{min-width:0}
.hero-lede{max-width:34ch}
.hero-lede strong{font-weight:600;color:var(--text)}
.hero-actions{margin-top:30px}

/* readout rail */
.readout{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-soft);
  border:1px solid var(--line);backdrop-filter:blur(7px)}
.readout-cell{background:rgba(11,17,27,.62);padding:20px 20px 18px;position:relative;overflow:hidden;
  display:flex;flex-direction:column}
.readout-cell .n{font-family:var(--display);font-variation-settings:"wdth" 104,"wght" 700;
  font-size:clamp(30px,3.4vw,44px);letter-spacing:-.04em;line-height:1;
  margin-top:auto;padding-top:9px;display:block}
.readout-cell .n.cy{color:var(--cyan)}
.readout-cell .n.vi{color:var(--violet)}
.readout-cell::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--arc);transform:scaleX(0);transform-origin:0 50%;transition:transform 1.1s var(--ease) var(--d,0ms)}
.readout.in .readout-cell::after{transform:scaleX(1)}

/* scroll hint */
.scroll-hint{position:absolute;left:var(--gut);bottom:24px;display:flex;align-items:center;gap:12px}
.scroll-hint i{display:block;width:1px;height:38px;background:linear-gradient(var(--cyan),transparent);
  animation:drop 2.4s var(--ease-io) infinite}
@keyframes drop{0%{transform:scaleY(0);transform-origin:0 0}
  45%{transform:scaleY(1);transform-origin:0 0}
  46%{transform:scaleY(1);transform-origin:0 100%}
  100%{transform:scaleY(0);transform-origin:0 100%}}

/* ---------- ticker -------------------------------------------------------- */
.ticker{border-block:1px solid var(--line);overflow:hidden;padding-block:15px;
  background:rgba(11,17,27,.5);position:relative;z-index:2}
.ticker-track{display:flex;gap:0;width:max-content;animation:slide 46s linear infinite}
.ticker:hover .ticker-track{animation-play-state:paused}
.ticker-item{display:flex;align-items:center;gap:15px;padding-inline:28px;white-space:nowrap}
.ticker-item i{width:4px;height:4px;background:var(--cyan);display:block;flex:none;transform:rotate(45deg)}
@keyframes slide{to{transform:translateX(-50%)}}

/* ---------- principles ---------------------------------------------------- */
.checks{border-top:0}
.check{display:grid;grid-template-columns:88px minmax(0,1.05fr) minmax(0,1.25fr);gap:clamp(18px,3vw,44px);
  align-items:baseline;padding-block:clamp(24px,2.6vw,34px);border-bottom:1px solid var(--line);
  position:relative;transition:padding-left .55s var(--ease)}
.check::before{content:"";position:absolute;left:0;top:-1px;height:1px;width:100%;background:var(--arc);
  transform:scaleX(0);transform-origin:0 50%;transition:transform .7s var(--ease)}
.check:hover{padding-left:14px}
.check:hover::before{transform:scaleX(1)}
.check-n{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.2em;color:var(--dim);
  transition:color .4s var(--ease)}
.check:hover .check-n{color:var(--cyan)}
.check p{color:var(--muted);font-size:16px}

/* ---------- layer stack --------------------------------------------------- */
.stack{position:relative}
.layer{position:sticky;min-height:100svh;display:flex;align-items:center;
  border-top:1px solid var(--line);will-change:transform,filter}
.layer-bg{position:absolute;inset:0;overflow:hidden;z-index:0}
.layer-bg::before{content:"";position:absolute;inset:0;background:var(--l-base,#080D16)}
.layer-bg::after{content:"";position:absolute;inset:-30%;
  background:radial-gradient(46% 42% at 78% 16%,var(--l-glow,rgba(79,227,232,.20)),transparent 68%);
  animation:breathe 13s var(--ease-io) infinite alternate}
@keyframes breathe{to{transform:translate3d(-4%,3%,0) scale(1.12)}}
.layer-in{position:relative;z-index:2;width:100%;max-width:var(--shell);margin:0 auto;
  padding:clamp(70px,8vw,104px) var(--gut);
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:clamp(34px,5vw,72px);
  align-items:center}
.layer h3{font-variation-settings:"wdth" 122,"wght" 800;text-transform:uppercase;
  font-size:clamp(42px,8.2vw,116px);letter-spacing:-.048em;line-height:.84;margin:16px 0 20px}
.layer .sub{font-size:clamp(19px,2.1vw,25px);line-height:1.24;max-width:24ch;margin-bottom:22px;
  color:var(--text);font-weight:400}
.layer .body{color:var(--muted);max-width:40ch;margin-bottom:28px}
.spec-row{display:flex;flex-wrap:wrap;gap:1px;background:var(--line-soft);width:fit-content;
  border:1px solid var(--line);margin-bottom:30px}
.spec-row div{background:rgba(4,6,10,.5);padding:11px 18px 12px}
.spec-row .v{display:block;font-family:var(--mono);font-size:12.5px;color:var(--text);margin-top:3px;letter-spacing:.02em}
.layer-art{display:flex;justify-content:center}

/* ---------- device -------------------------------------------------------- */
.device{width:clamp(230px,26vw,286px);aspect-ratio:393/852;position:relative;flex:none;
  border-radius:42px;padding:9px;background:linear-gradient(160deg,#26344A,#0C1320 55%,#1A2436);
  box-shadow:0 44px 90px -30px rgba(0,0,0,.85),0 0 0 1px rgba(231,238,247,.09),
             inset 0 1px 1px rgba(231,238,247,.16);
  transform:translateY(var(--float,0));transition:transform 1.1s var(--ease)}
.device-screen{position:absolute;inset:9px;border-radius:34px;overflow:hidden;
  background:linear-gradient(180deg,#0A0F19,#070B12);display:flex;flex-direction:column}
.device-notch{position:absolute;top:12px;left:50%;transform:translateX(-50%);width:88px;height:24px;
  background:#04060A;border-radius:99px;z-index:6}
.scr{flex:1;display:flex;flex-direction:column;padding:0 15px;min-height:0}
.scr-status{display:flex;justify-content:space-between;align-items:center;padding:13px 4px 0;
  font-family:var(--mono);font-size:9px;color:var(--muted);letter-spacing:.06em}
.scr-status .bars{display:flex;gap:2px;align-items:flex-end}
.scr-status .bars i{width:2.5px;background:var(--muted);display:block}
.scr-head{padding:26px 2px 14px}
.scr-title{font-family:var(--display);font-variation-settings:"wdth" 104,"wght" 700;
  font-size:23px;letter-spacing:-.03em;line-height:1}
.scr-sub{font-family:var(--mono);font-size:8.5px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--dim);margin-top:7px}
.scr-hero{border:1px solid var(--line);background:rgba(231,238,247,.035);padding:13px 14px;margin-bottom:11px;
  display:flex;justify-content:space-between;align-items:flex-end}
.scr-hero .k{font-family:var(--mono);font-size:8px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim)}
.scr-hero .val{font-family:var(--display);font-variation-settings:"wdth" 102,"wght" 700;
  font-size:27px;letter-spacing:-.04em;line-height:1;margin-top:5px;color:var(--cyan)}
.scr-hero .unit{font-size:11px;color:var(--muted);margin-left:3px;font-family:var(--sans)}
.spark{display:flex;align-items:flex-end;gap:2.5px;height:30px}
.spark i{width:4px;background:linear-gradient(var(--cyan),rgba(79,227,232,.16));display:block;opacity:.85}
.ex{border:1px solid var(--line);background:rgba(231,238,247,.022);padding:11px 13px 9px;margin-bottom:9px}
.ex-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:9px}
.ex-name{font-size:12.5px;font-weight:600;letter-spacing:-.01em}
.ex-tag{font-family:var(--mono);font-size:7.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--violet);border:1px solid rgba(155,140,255,.34);padding:2px 6px}
.set{display:grid;grid-template-columns:16px 1fr 1fr 20px;gap:8px;align-items:center;
  padding:5px 0;border-top:1px solid var(--line-soft);font-family:var(--mono);font-size:10px;color:var(--muted)}
.set .w{color:var(--text)}
.set .tick{color:var(--mint);font-size:9px;text-align:right}
.set.pending .tick{color:var(--faint)}
.scr-timer{margin-top:auto;border:1px solid rgba(79,227,232,.3);background:rgba(79,227,232,.08);
  padding:9px 13px;display:flex;justify-content:space-between;align-items:center;margin-bottom:11px}
.scr-timer .t{font-family:var(--display);font-variation-settings:"wght" 700;font-size:17px;
  letter-spacing:-.02em;color:var(--cyan)}
.scr-tabs{display:flex;justify-content:space-around;padding:11px 0 20px;border-top:1px solid var(--line)}
.scr-tabs i{width:17px;height:17px;border:1.4px solid var(--faint);display:block}
.scr-tabs i.on{border-color:var(--cyan);background:rgba(79,227,232,.16)}

/* ---------- cards --------------------------------------------------------- */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.card{position:relative;border:1px solid var(--line);background:rgba(16,24,39,.5);
  padding:30px 28px 26px;overflow:hidden;transition:border-color .45s var(--ease),transform .6s var(--ease)}
.card::before{content:"";position:absolute;inset:0;opacity:0;transition:opacity .5s var(--ease);
  background:radial-gradient(340px circle at var(--mx,50%) var(--my,0%),rgba(79,227,232,.13),transparent 62%)}
.card:hover{border-color:rgba(231,238,247,.24);transform:translateY(-3px)}
.card:hover::before{opacity:1}
.card>*{position:relative;z-index:1}
.card h3{margin:14px 0 10px}
.card p{color:var(--muted);font-size:15.5px;margin-bottom:22px}
.card-hatch{background-image:repeating-linear-gradient(-45deg,transparent 0 11px,rgba(231,238,247,.026) 11px 12px)}

/* ---------- cta panel ----------------------------------------------------- */
.cta{position:relative;z-index:2;border:1px solid var(--line);overflow:hidden;
  background:linear-gradient(160deg,rgba(21,31,49,.9),rgba(7,11,18,.9))}
.cta::after{content:"";position:absolute;inset:-40%;
  background:radial-gradient(38% 44% at 82% 12%,rgba(155,140,255,.2),transparent 66%),
             radial-gradient(34% 40% at 12% 88%,rgba(79,227,232,.16),transparent 66%);
  animation:breathe 15s var(--ease-io) infinite alternate}
.cta-in{position:relative;z-index:2;padding:clamp(44px,6vw,76px) clamp(28px,5vw,64px);
  display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(28px,4vw,56px);align-items:end}
.cta h2{max-width:13ch}

/* ---------- forms --------------------------------------------------------- */
.field{display:block;margin-bottom:18px}
.field .lab{display:block;margin-bottom:9px}
.field input,.field textarea,.field select{
  width:100%;background:rgba(7,11,18,.75);border:1px solid var(--line);color:var(--text);
  font-family:var(--sans);font-size:15.5px;padding:13px 15px;transition:border-color .3s var(--ease),background .3s var(--ease)}
.field textarea{min-height:132px;resize:vertical;line-height:1.55}
.field input:hover,.field textarea:hover,.field select:hover{border-color:var(--line-hard)}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--cyan);
  background:rgba(79,227,232,.05)}
.field input::placeholder,.field textarea::placeholder{color:var(--faint)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  border:1px solid var(--line);padding:9px 14px;color:var(--muted);cursor:pointer;
  transition:all .3s var(--ease);background:transparent}
.chip:hover{border-color:var(--line-hard);color:var(--text)}
.chip[aria-pressed="true"]{border-color:var(--cyan);color:var(--cyan);background:rgba(79,227,232,.09)}

/* ---------- footer -------------------------------------------------------- */
.foot{position:relative;z-index:2;border-top:1px solid var(--line);background:var(--abyss);
  padding-top:clamp(52px,6vw,78px);padding-bottom:44px;margin-top:clamp(80px,9vw,130px)}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(2,minmax(0,1fr));
  gap:clamp(26px,4vw,54px);padding-bottom:46px;border-bottom:1px solid var(--line)}
.foot-col h4{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.24em;
  text-transform:uppercase;color:var(--dim);margin-bottom:16px}
.foot-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.foot-col a{color:var(--muted);font-size:15px;transition:color .3s var(--ease)}
.foot-col a:hover{color:var(--cyan)}
.foot-bottom{padding-top:26px;display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between}
.foot-word{font-family:var(--display);font-variation-settings:"wdth" 125,"wght" 800;
  text-transform:uppercase;font-size:clamp(46px,12vw,168px);line-height:.8;letter-spacing:-.05em;
  color:transparent;-webkit-text-stroke:1px rgba(231,238,247,.12);
  margin-top:44px;pointer-events:none;user-select:none}


/* ---------- responsive ---------------------------------------------------- */
@media (max-width:1000px){
  :root{--gut:22px}
  .hero-grid{grid-template-columns:1fr;align-items:start;gap:36px}
  .readout{max-width:520px}
  .layer{position:relative;min-height:auto}
  .layer-in{grid-template-columns:1fr;gap:38px}
  .layer-art{justify-content:flex-start}
  .check{grid-template-columns:52px 1fr;gap:14px}
  .check p{grid-column:2}
  .cta-in{grid-template-columns:1fr;align-items:start}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
  /* keep the two controls that matter, drop the text links */
  .nav-links a:not(.nav-cta){display:none}
  .nav-links{gap:7px}
  .mtoggle span{display:none}
  .mtoggle{padding:9px}
  .readout{grid-template-columns:repeat(3,1fr);max-width:none}
  .readout-cell{padding:14px 12px 13px}
  .readout-cell .n{font-size:25px;margin-top:7px}
  .foot-grid{grid-template-columns:1fr}
  .device{width:min(258px,74vw)}

  /* narrow screens cannot carry the expanded display width without clipping */
  .mono{letter-spacing:.15em}
  .eyebrow{flex-wrap:wrap}
  .eyebrow::before{width:18px}
  .hero-word{font-size:clamp(42px,11.4vw,66px);letter-spacing:-.038em;
    font-variation-settings:"wdth" 106,"wght" 800}
  .hero-word .stroke{-webkit-text-stroke-width:1.4px}
  .h-xl{font-size:clamp(40px,10.6vw,66px);font-variation-settings:"wdth" 106,"wght" 800}
  .layer h3{font-size:clamp(38px,10.8vw,74px);font-variation-settings:"wdth" 110,"wght" 800;
    letter-spacing:-.04em}
  .foot-word{font-size:clamp(34px,10vw,110px);font-variation-settings:"wdth" 106,"wght" 800}
  .spec-row{width:100%}
  .spec-row div{flex:1}
}

/* ==========================================================================
   MOTION LAYER
   Motion state lives on html[data-motion]. An inline script in <head> resolves
   it before first paint from localStorage, falling back to the OS preference,
   so reduced motion is still the default for anyone who asked for it.
   ========================================================================== */

/* suppress transitions during the first paint so nothing flickers on load */
html.booting *,html.booting *::before,html.booting *::after{transition:none!important}

/* scroll progress */
.progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:100;background:var(--arc);
  transform:scaleX(0);transform-origin:0 50%;will-change:transform}

/* lightning bloom over the whole page */
.flash{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:0;
  background:radial-gradient(76% 54% at var(--fx,50%) 0%,rgba(150,214,255,.42),transparent 68%);
  will-change:opacity}

/* cursor instrument */
.cur{position:fixed;top:0;left:0;z-index:120;pointer-events:none;width:28px;height:28px;
  margin:-14px 0 0 -14px;border:1px solid rgba(231,238,247,.42);border-radius:50%;opacity:0;
  transition:width .35s var(--ease),height .35s var(--ease),margin .35s var(--ease),
             border-color .35s var(--ease),background .35s var(--ease),opacity .3s linear;
  will-change:transform}
.cur.live{opacity:1}
.cur.hot{width:58px;height:58px;margin:-29px 0 0 -29px;border-color:var(--cyan);
  background:rgba(79,227,232,.1)}
.cur-dot{position:fixed;top:0;left:0;z-index:121;pointer-events:none;width:4px;height:4px;
  margin:-2px 0 0 -2px;border-radius:50%;background:var(--cyan);opacity:0;
  transition:opacity .3s linear;will-change:transform}
.cur-dot.live{opacity:.9}

/* word split reveal */
.sp{display:inline-block;overflow:hidden;vertical-align:top;
  padding-bottom:.14em;margin-bottom:-.14em}
.sp>i{display:inline-block;font-style:inherit;transform:translateY(114%);
  transition:transform 1.05s var(--ease);transition-delay:var(--d,0ms)}
.sp.in>i{transform:none}

/* button fill wipe */
.btn::after{content:"";position:absolute;inset:0;z-index:-1;background:var(--arc);
  transform:translateY(101%);transition:transform .55s var(--ease)}
.btn-ghost:hover::after,.btn-quiet:hover::after{transform:none}
.btn-ghost:hover,.btn-quiet:hover{color:var(--void);border-color:transparent}

/* depth for the stack and the devices */
.stack{perspective:1600px;perspective-origin:50% 38%}
.layer{transform-origin:50% 6%;backface-visibility:hidden}
.layer-art{perspective:1200px}
.device{transform-style:preserve-3d}
.device-screen{transform:translateZ(1px)}

/* motion toggle */
.mtoggle{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);
  padding:9px 12px;font-family:var(--mono);font-size:9.5px;font-weight:500;letter-spacing:.18em;
  text-transform:uppercase;color:var(--muted);background:transparent;cursor:pointer;
  transition:color .3s var(--ease),border-color .3s var(--ease)}
.mtoggle:hover{color:var(--text);border-color:var(--line-hard)}
.mtoggle i{width:6px;height:6px;border-radius:50%;display:block;background:var(--cyan);
  box-shadow:0 0 0 3px rgba(79,227,232,.2);transition:background .3s var(--ease),box-shadow .3s var(--ease)}
html[data-motion="reduced"] .mtoggle i{background:var(--faint);box-shadow:none}

/* one time nudge when the OS asked for reduced motion */
.mnudge{position:fixed;left:18px;bottom:18px;z-index:98;max-width:330px;
  border:1px solid var(--line);background:rgba(11,17,27,.94);backdrop-filter:blur(12px);
  padding:18px 20px 16px;display:none}
.mnudge.show{display:block}
.mnudge p{color:var(--muted);font-size:14px;margin:10px 0 14px}
.mnudge .row{display:flex;gap:8px}

/* --------------------------------------------------------------------------
   Reduced motion contract: content still fades in, but nothing travels,
   scales, parallaxes, loops or follows the pointer.
   -------------------------------------------------------------------------- */
html[data-motion="reduced"]{scroll-behavior:auto}
html[data-motion="reduced"] #storm,
html[data-motion="reduced"] .flash,
html[data-motion="reduced"] .cur,
html[data-motion="reduced"] .cur-dot,
html[data-motion="reduced"] .progress,
html[data-motion="reduced"] .scroll-hint i{display:none}
html[data-motion="reduced"] .rv{transform:none}
html[data-motion="reduced"] .rv-line{clip-path:none;transform:none}
html[data-motion="reduced"] .rv-rule{transform:none}
html[data-motion="reduced"] .sp>i,
html[data-motion="reduced"] .hero-word b{transform:none}
html[data-motion="reduced"] .ticker-track,
html[data-motion="reduced"] .layer-bg::after,
html[data-motion="reduced"] .btn-primary{animation:none}
html[data-motion="reduced"] .btn::after{display:none}
html[data-motion="reduced"] .btn-ghost:hover,
html[data-motion="reduced"] .btn-quiet:hover{color:var(--cyan);border-color:var(--cyan)}
html[data-motion="reduced"] .layer{transform:none!important;filter:none!important}
html[data-motion="reduced"] .check:hover{padding-left:0}
html[data-motion="reduced"] .card:hover{transform:none}

/* ---------- form submission state ---------------------------------------- */
.trap{position:absolute!important;left:-9999px;width:1px;height:1px;opacity:0;pointer-events:none}
.form-status{width:100%;margin-top:14px;min-height:1.2em;font-family:var(--mono);font-size:10.5px;
  font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--faint)}
.form-status.is-ok{color:var(--mint)}
.form-status.is-busy{color:var(--cyan)}
.form-status.is-warn{color:var(--muted)}
.form-status.is-err{color:#FF8FA3}
.form-notice{width:100%;margin:4px 0 0;color:var(--muted);font-size:12.5px;line-height:1.55}
.form-notice a{color:var(--text);text-decoration:underline;text-decoration-color:var(--line-strong);text-underline-offset:3px}
.form-notice a:hover{color:var(--cyan);text-decoration-color:var(--cyan)}
.btn[disabled]{opacity:.5;pointer-events:none}

/* working title note, sits directly under a product name */
.wt{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:10.5px;
  font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
  border:1px solid var(--line);padding:7px 12px}
.wt::before{content:"";width:5px;height:5px;flex:none;background:var(--violet);
  box-shadow:0 0 0 3px rgba(155,140,255,.2);border-radius:50%}

/* skip link, first focusable element on every page */
.skip{position:fixed;top:10px;left:10px;z-index:200;transform:translateY(-160%);
  background:var(--cyan);color:var(--void);font-family:var(--mono);font-size:11px;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;padding:12px 18px;
  transition:transform .3s var(--ease)}
.skip:focus{transform:none}
main:focus{outline:none}