/* nexverto.com — tokens read off the live site (docs/platform/BRAND.md). Dark by default; light by the toggle. */
:root{
  --surface-100:#05070C;--surface-200:#0B1730;--surface-300:#111E3A;
  --ink:#F2F5F9;--ink-muted:#98A4B5;--ink-dim:#5C6878;
  --border:rgba(255,255,255,.08);--border-strong:rgba(255,255,255,.16);
  --primary:#104FB6;--primary-strong:#2D6FD9;--primary-ink:#F2F5F9;--primary-glow:rgba(16,79,182,.40);
  --glass:rgba(11,23,48,.55);--glass-border:rgba(255,255,255,.1);
  --sans:'IBM Plex Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,Consolas,monospace;
  --ease:cubic-bezier(.16,1,.3,1);--gx:50%;--gy:20%;--rail-h:128px;
}
html[data-theme="light"]{
  --surface-100:#F5F7FB;--surface-200:#FFFFFF;--surface-300:#EDF1F7;--ink:#0B1220;--ink-muted:#4B5769;--ink-dim:#6B7A90;
  --border:rgba(11,18,32,.08);--border-strong:rgba(11,18,32,.16);--primary-glow:rgba(16,79,182,.22);
  --glass:rgba(255,255,255,.6);--glass-border:rgba(11,18,32,.1)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;min-height:100%}
body{background:var(--surface-100);color:var(--ink);font:400 17px/1.6 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;padding-bottom:var(--rail-h)}
/* the atmosphere: a glow that follows the pointer, a faint grain, hairline vignette */
body::before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:radial-gradient(52rem 36rem at var(--gx) var(--gy),rgba(45,111,217,.20),transparent 62%),radial-gradient(40rem 30rem at 100% 110%,rgba(16,79,182,.14),transparent 60%);
  transition:background-position .2s}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
html[data-theme="light"] body::after{opacity:.035}
a{color:var(--primary-strong);text-decoration:none;transition:color .3s var(--ease)}
a:hover{color:var(--ink)}
:is(a,button,input,textarea,select):focus-visible{outline:2px solid var(--primary-strong);outline-offset:3px}
.wrap{max-width:1120px;margin:0 auto;padding:0 clamp(18px,4vw,40px)}
header.top{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 0;
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%)}
header.top::before{content:"";position:absolute;inset:0 -40vw;background:rgba(5,7,12,.72);z-index:-1;pointer-events:none}
html[data-theme="light"] header.top::before{background:rgba(245,247,251,.78)}
header.top::after{content:"";position:absolute;left:-40vw;right:-40vw;bottom:0;border-top:1px solid var(--border);pointer-events:none}
.mark{font:700 20px/1 var(--sans);letter-spacing:-.02em;color:var(--ink)}
.mark b{color:var(--primary-strong);font-weight:700}
nav{display:flex;align-items:center;gap:22px;font:500 14px/1 var(--sans)}
nav a{color:var(--ink-muted);position:relative;padding:8px 0}
nav a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:var(--primary-strong);transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease)}
nav a:hover::after,nav a[aria-current]::after{transform:scaleX(1)}
nav a[aria-current]{color:var(--ink)}
nav .theme{padding:7px 12px;border-radius:999px;border:1px solid var(--border-strong);background:transparent;color:var(--ink-muted);font:600 12px/1 var(--mono);cursor:pointer;transition:color .3s,border-color .3s}
nav .theme:hover{color:var(--ink);border-color:var(--primary-strong)}
main{padding:0}
/* while the page plays, the document itself never scrolls; the footer's facts live in the last beat */
html.motion body{overflow:hidden;height:100vh}
html.motion footer{display:none}
h1{margin:0 0 22px;font:600 clamp(40px,7.6vw,92px)/.98 var(--sans);letter-spacing:-.035em}
h2{margin:0 0 14px;font:600 clamp(30px,4.6vw,52px)/1.05 var(--sans);letter-spacing:-.03em}
h3{margin:0 0 6px;font:600 20px/1.3 var(--sans);letter-spacing:-.012em}
p{margin:0 0 16px;color:var(--ink-muted)}
.lede{font-size:clamp(18px,2vw,22px);line-height:1.5;max-width:52ch;color:var(--ink)}
.eyebrow{margin:0 0 18px;color:var(--primary-strong);font:600 12px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase}
.quiet{color:var(--ink-dim);font-size:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:10px 24px;border-radius:999px;font:600 16px/1 var(--sans);
  color:var(--ink);background:var(--glass);border:1px solid var(--glass-border);backdrop-filter:blur(10px);cursor:pointer;
  transition:transform .35s var(--ease),background .3s,border-color .3s,box-shadow .35s var(--ease),color .3s;will-change:transform}
.btn:hover{border-color:var(--primary-strong);color:var(--ink)}
.btn.primary{background:var(--primary);color:var(--primary-ink);border-color:transparent;box-shadow:0 12px 34px var(--primary-glow)}
.btn.primary:hover{background:var(--primary-strong);box-shadow:0 18px 44px var(--primary-glow)}
.row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
/* the rail: the pipeline at half size, fixed at the foot of every page like a bar, lit left to right in seven sections as the page plays */
.rail{position:fixed;left:0;right:0;bottom:0;z-index:9;height:var(--rail-h);display:grid;place-items:end center;pointer-events:none;
  background:linear-gradient(180deg,rgba(5,7,12,0),rgba(5,7,12,.94) 28%,rgba(5,7,12,1));-webkit-mask-image:linear-gradient(180deg,transparent,#000 22%);mask-image:linear-gradient(180deg,transparent,#000 22%);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
html[data-theme="light"] .rail{background:linear-gradient(180deg,rgba(245,247,251,0),rgba(245,247,251,.94) 28%,rgba(245,247,251,1))}
.rail-in{position:relative;height:calc(var(--rail-h) - 14px);margin-bottom:6px;
  -webkit-mask-image:linear-gradient(90deg,#000 0 47%,transparent 50%);mask-image:linear-gradient(90deg,#000 0 47%,transparent 50%);
  -webkit-mask-size:200% 100%;mask-size:200% 100%;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;
  -webkit-mask-position:calc(100% - var(--rail,0) * 104%) 0;mask-position:calc(100% - var(--rail,0) * 104%) 0;
  transition:mask-position .9s var(--ease),-webkit-mask-position .9s var(--ease)}
.rail-in img{display:block;height:100%;width:auto}
.rail-in i{position:absolute;top:50%;left:calc(var(--rail,0) * 100%);width:80px;height:80px;margin:-40px 0 0 -40px;border-radius:50%;opacity:var(--spark,0);
  background:radial-gradient(closest-side,rgba(45,111,217,.6),rgba(45,111,217,.2) 45%,transparent 70%);filter:blur(5px);transition:left .9s var(--ease),opacity .6s}
html[data-theme="light"] .rail-in img{filter:invert(1) hue-rotate(180deg) contrast(1.05)}
html.still .rail-in{-webkit-mask-image:none;mask-image:none}html.still .rail-in i{display:none}
h1 .w{display:inline-block;opacity:0;transform:translate3d(0,.6em,0) rotate(2deg);transform-origin:left bottom;transition:opacity .9s var(--ease),transform 1.1s var(--ease)}
h1.in .w{opacity:1;transform:none}
html.still h1 .w{opacity:1;transform:none}
.split{display:grid;gap:clamp(14px,2vw,22px);grid-template-columns:1fr 1fr;align-items:start}
.split .big{font:600 clamp(28px,3.6vw,44px)/1.08 var(--sans);letter-spacing:-.03em;color:var(--ink);margin:0}
.glass{padding:clamp(22px,3vw,36px);border-radius:22px;background:var(--glass);border:1px solid var(--glass-border);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:0 30px 80px rgba(0,0,0,.35);position:relative;overflow:hidden}
.glass::before{content:"";position:absolute;inset:-40%;background:radial-gradient(40% 40% at 30% 20%,rgba(45,111,217,.25),transparent 60%);pointer-events:none}
html[data-theme="light"] .glass{box-shadow:0 30px 80px rgba(11,18,32,.12)}
.lines{margin:0;padding:0;list-style:none}
.lines li{display:grid;grid-template-columns:64px 1fr;gap:18px;align-items:baseline;padding:26px 0;border-top:1px solid var(--border);
  font:600 clamp(22px,3vw,38px)/1.15 var(--sans);letter-spacing:-.025em;color:var(--ink);transition:transform .5s var(--ease),color .3s}
.lines li:last-child{border-bottom:1px solid var(--border)}
.lines li span{font:600 12px/1 var(--mono);color:var(--primary-strong);letter-spacing:.18em}
.lines li:hover{transform:translate3d(10px,0,0)}
.steps{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));padding:0;margin:0;list-style:none;counter-reset:s}
.steps li{padding:26px;border-radius:18px;background:var(--glass);border:1px solid var(--glass-border);backdrop-filter:blur(12px);transition:transform .5s var(--ease),border-color .3s}
.steps li:hover{transform:translate3d(0,-6px,0);border-color:var(--primary-strong)}
.steps li::before{counter-increment:s;content:counter(s,decimal-leading-zero);display:block;margin-bottom:14px;color:var(--primary-strong);font:600 12px/1 var(--mono);letter-spacing:.18em}
.steps p{margin:0;font-size:16px}
.arc{display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;padding:22px 26px;border-radius:18px;border:1px solid var(--glass-border);background:var(--glass);backdrop-filter:blur(12px)}
.arc .mono{font:600 12px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--primary-strong)}
.arc b{font:600 clamp(18px,2.2vw,24px)/1.2 var(--sans);letter-spacing:-.02em;color:var(--ink)}
/* forms */
form{display:grid;gap:14px;margin-top:26px}
label{display:grid;gap:6px;font:600 13px/1.2 var(--sans);color:var(--ink-muted)}
input,textarea,select{width:100%;padding:13px 14px;border-radius:12px;border:1px solid var(--border-strong);background:var(--surface-200);color:var(--ink);font:400 16px/1.4 var(--sans);transition:border-color .3s,box-shadow .3s}
input:focus,textarea:focus,select:focus{border-color:var(--primary-strong);box-shadow:0 0 0 4px var(--primary-glow);outline:none}
textarea{min-height:140px;resize:vertical}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
footer{margin-top:clamp(64px,10vh,120px);padding:26px 0 40px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;gap:9px 26px;align-items:baseline;color:var(--ink-dim);font-size:14px}
footer .mono{font:600 12px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--primary-strong)}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
@media (max-width:720px){:root{--rail-h:76px}.split{grid-template-columns:1fr}nav{gap:14px}.lines li{grid-template-columns:44px 1fr;padding:18px 0}}