:root {
  --bg: #07090c;
  --bg-2: #0c1015;
  --surface: #11161d;
  --surface-2: #161c25;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --text: #f2f5f7;
  --muted: #9aa6b2;
  --dim: #6b7682;
  --accent: #34f5a4;
  --accent-2: #16b8f3;
  --grad: linear-gradient(120deg, var(--accent), var(--accent-2));
  --radius: 18px;
  --wrap: 1180px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Space Grotesk", var(--font);
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--display); font-weight: 600; letter-spacing: -0.02em; margin: 0; line-height: 1.12; }
h2 { font-size: clamp(30px, 4vw, 46px); }
h3 { font-size: 20px; letter-spacing: -0.01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.wrap { width: min(var(--wrap), 100% - 40px); margin-inline: auto; }
.muted { color: var(--muted); }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: #000; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 22px; border-radius: 999px;
  font: 600 15px/1 var(--font);
  border: 1px solid transparent; cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn--sm { padding: 10px 16px; font-size: 14px; }
.btn--primary { background: var(--grad); color: #04130d; box-shadow: 0 8px 30px -10px rgba(52, 245, 164, .6); }
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 12px 34px -8px rgba(52, 245, 164, .7); }
.btn--ghost { border-color: var(--line-2); color: var(--text); }
.btn--ghost:hover { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.28); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font: 500 13px/1 var(--mono); text-transform: uppercase; letter-spacing: .12em;
  color: var(--accent); margin-bottom: 18px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); animation: pulse 2.4s infinite; }
@keyframes pulse { 50% { opacity: .35; } }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(7, 9, 12, .7);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s;
}
.nav.is-scrolled { border-bottom-color: var(--line); }
.nav__inner { display: flex; align-items: center; gap: 32px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand__name { font: 700 20px/1 var(--display); letter-spacing: -0.03em; }
.brand__name span { color: var(--accent); }
.nav__links { display: flex; gap: 28px; margin-left: auto; }
.nav__links a { color: var(--muted); font-size: 15px; font-weight: 500; transition: color .2s; }
.nav__links a:hover { color: var(--text); }
.nav__toggle { display: none; margin-left: auto; width: 42px; height: 42px; border: 1px solid var(--line-2); background: transparent; border-radius: 12px; cursor: pointer; position: relative; }
.nav__toggle span { position: absolute; left: 11px; right: 11px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .25s; }
.nav__toggle span:first-child { top: 15px; }
.nav__toggle span:last-child { top: 23px; }
.nav__toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
.mobile-menu { display: grid; gap: 4px; padding: 8px 20px 20px; border-bottom: 1px solid var(--line); }
.mobile-menu[hidden] { display: none; }
.mobile-menu a:not(.btn) { padding: 12px 4px; font-size: 18px; border-bottom: 1px solid var(--line); }
.mobile-menu .btn { justify-content: center; margin-top: 12px; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 96px 0 110px; overflow: hidden; }
.hero__glow {
  position: absolute; inset: -30% -10% auto; height: 900px; pointer-events: none;
  background:
    radial-gradient(40% 45% at 72% 30%, rgba(22, 184, 243, .18), transparent 70%),
    radial-gradient(35% 40% at 30% 20%, rgba(52, 245, 164, .14), transparent 70%);
}
.hero__grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(70% 60% at 50% 30%, #000 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(70% 60% at 50% 30%, #000 20%, transparent 80%);
  opacity: .6;
}
.hero__inner { position: relative; display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(38px, 5.4vw, 66px); letter-spacing: -0.035em; line-height: 1.04; }
.lead { margin-top: 24px; font-size: 19px; color: var(--muted); max-width: 540px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.hero__facts { display: flex; flex-wrap: wrap; gap: 14px 36px; margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--line); }
.hero__facts li { display: grid; gap: 2px; }
.hero__facts strong { font: 600 18px/1.2 var(--display); }
.hero__facts span { color: var(--dim); font-size: 14px; }

/* Hero visual */
.hero__visual { position: relative; min-height: 460px; }
.window {
  position: absolute; top: 0; left: 0; width: 88%;
  background: linear-gradient(180deg, rgba(22, 28, 37, .92), rgba(12, 16, 21, .92));
  border: 1px solid var(--line-2); border-radius: var(--radius);
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .8);
  overflow: hidden;
}
.window__bar { display: flex; align-items: center; gap: 7px; padding: 13px 16px; border-bottom: 1px solid var(--line); }
.window__bar i { width: 11px; height: 11px; border-radius: 50%; background: #2a323d; }
.window__bar span { margin-left: 10px; font: 500 12px var(--mono); color: var(--dim); }
.code { margin: 0; padding: 20px 22px 26px; font: 400 13.5px/1.7 var(--mono); color: #c9d3dc; overflow-x: auto; }
.code .k { color: #c792ea; }
.code .t { color: var(--accent); }
.code .p { color: #7fc8ff; }
.code .s { color: #f5c97a; }
.code .n { color: #ff9e7a; }

.device {
  position: absolute; right: 0; bottom: 0; width: 56%;
  padding: 12px; border-radius: 26px;
  background: linear-gradient(160deg, #232a34, #0d1117);
  border: 1px solid var(--line-2);
  box-shadow: 0 50px 90px -30px rgba(0, 0, 0, .9), 0 0 0 1px rgba(0,0,0,.6) inset;
  animation: float 7s ease-in-out infinite;
}
@keyframes float { 50% { transform: translateY(-10px); } }
.device__screen { border-radius: 16px; background: radial-gradient(120% 80% at 50% 0%, #0f2a2a, #070b0f 70%); padding: 16px 18px 18px; }
.hmi__top { display: flex; justify-content: space-between; font: 500 11px var(--mono); color: var(--dim); letter-spacing: .08em; }
.hmi__top .ok { color: var(--accent); }
.hmi__gauge { position: relative; margin: 12px auto 4px; width: 82%; }
.gauge-arc { stroke-dasharray: 100; stroke-dashoffset: 100; animation: gauge 2.2s .4s cubic-bezier(.2,.8,.2,1) forwards; }
@keyframes gauge { to { stroke-dashoffset: 30; } }
.hmi__val { position: absolute; left: 0; right: 0; bottom: 2px; text-align: center; }
.hmi__val b { font: 700 30px/1 var(--display); }
.hmi__val small { margin-left: 4px; color: var(--dim); font-size: 12px; }
.hmi__bars { display: flex; align-items: flex-end; gap: 6px; height: 54px; margin-top: 12px; }
.hmi__bars i { flex: 1; height: var(--h); border-radius: 4px 4px 2px 2px; background: linear-gradient(180deg, rgba(52,245,164,.9), rgba(22,184,243,.25)); transform-origin: bottom; animation: bar 1.2s cubic-bezier(.2,.8,.2,1) both; }
.hmi__bars i:nth-child(2n) { animation-delay: .1s; }
.hmi__bars i:nth-child(3n) { animation-delay: .2s; }
@keyframes bar { from { transform: scaleY(0); } }

.chip {
  position: absolute; padding: 9px 14px; border-radius: 999px;
  font: 500 12px var(--mono); color: var(--text);
  background: rgba(17, 22, 29, .85); border: 1px solid var(--line-2);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 10px 30px -10px rgba(0,0,0,.7);
}
.chip::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); margin-right: 8px; vertical-align: middle; }
.chip--a { left: 4%; bottom: 58px; }
.chip--b { right: 2%; top: -18px; }
.chip--b::before { background: var(--accent-2); }

/* ---------- Platforms ---------- */
.platforms { border-block: 1px solid var(--line); background: var(--bg-2); padding: 30px 0; }
.platforms .wrap { display: flex; align-items: center; gap: 32px; }
.platforms p { color: var(--dim); font-size: 14px; white-space: nowrap; }
.platforms ul { display: flex; flex-wrap: wrap; gap: 10px 28px; }
.platforms li { font: 500 15px var(--display); color: #c3ccd5; }

/* ---------- Sections ---------- */
.section { padding: 120px 0; }
.section--alt { background: var(--bg-2); border-block: 1px solid var(--line); }
.section__head { max-width: 760px; margin-bottom: 56px; }

/* Services cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  position: relative; display: flex; flex-direction: column; gap: 14px;
  padding: 30px 28px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
  transition: border-color .3s, transform .3s, background .3s;
  overflow: hidden;
}
.card::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .3s;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), rgba(52,245,164,.09), transparent 45%);
}
.card:hover { border-color: rgba(52,245,164,.35); transform: translateY(-3px); }
.card:hover::after { opacity: 1; }
.card__icon { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: rgba(52,245,164,.1); border: 1px solid rgba(52,245,164,.25); margin-bottom: 6px; }
.card__icon svg { width: 24px; height: 24px; fill: none; stroke: var(--accent); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.card p { color: var(--muted); font-size: 15.5px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 8px; }
.tags li { font: 500 12px var(--mono); color: var(--muted); padding: 5px 10px; border-radius: 999px; border: 1px solid var(--line-2); }

/* Why split */
.split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 72px; align-items: start; }
.split__copy { position: sticky; top: 120px; }
.split__copy .muted { margin-top: 22px; font-size: 18px; }
.link-arrow { display: inline-block; margin-top: 28px; color: var(--accent); font-weight: 600; }
.link-arrow:hover { text-decoration: underline; text-underline-offset: 4px; }
.features { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.features li { padding: 28px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.features h3 { margin-bottom: 10px; }
.features h3::before { content: ""; display: block; width: 28px; height: 3px; border-radius: 3px; background: var(--grad); margin-bottom: 18px; }
.features p { color: var(--muted); font-size: 15.5px; }

/* Industries */
.industries { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.ind { padding: 34px 30px 38px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .3s; }
.ind:hover { background: var(--surface); }
.ind span { font: 500 13px var(--mono); color: var(--accent); }
.ind h3 { margin: 18px 0 10px; }
.ind p { color: var(--muted); font-size: 15.5px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; position: relative; }
.steps::before { content: ""; position: absolute; top: 23px; left: 24px; right: 24px; height: 1px; background: linear-gradient(90deg, var(--accent), var(--accent-2), transparent); opacity: .5; }
.steps li { position: relative; }
.steps__n { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; background: var(--bg-2); border: 1px solid rgba(52,245,164,.45); color: var(--accent); font: 600 18px var(--display); margin-bottom: 26px; position: relative; }
.steps h3 { margin-bottom: 10px; }
.steps p { color: var(--muted); font-size: 15.5px; padding-right: 12px; }

/* Stack */
.stack { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.stack__group { padding: 26px 28px; border-radius: var(--radius); border: 1px solid var(--line); background: linear-gradient(180deg, var(--surface), transparent); }
.stack__group h3 { font: 500 13px var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--accent); margin-bottom: 14px; }
.stack__group p { color: #c3ccd5; font-size: 15.5px; line-height: 1.8; }

/* Plans */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.plan { position: relative; padding: 34px 30px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.plan h3 { font-size: 22px; margin-bottom: 12px; }
.plan p { color: var(--muted); font-size: 15.5px; margin-bottom: 22px; }
.plan ul { display: grid; gap: 10px; padding-top: 22px; border-top: 1px solid var(--line); }
.plan li { position: relative; padding-left: 26px; font-size: 15px; }
.plan li::before { content: ""; position: absolute; left: 0; top: 5px; width: 14px; height: 8px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }
.plan--featured { background: linear-gradient(var(--surface-2), var(--surface-2)) padding-box, var(--grad) border-box; border: 1px solid transparent; }
.plan__badge { position: absolute; top: -12px; right: 24px; padding: 6px 12px; border-radius: 999px; background: var(--grad); color: #04130d; font: 600 12px var(--font); }

/* FAQ */
.faq { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 72px; }
.faq__list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 24px; padding: 24px 0; font: 500 18px/1.4 var(--display); }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; flex: none; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--line-2); color: var(--accent); font: 400 18px/1 var(--font); transition: transform .25s; }
details[open] summary::after { transform: rotate(45deg); }
details p { color: var(--muted); padding: 0 48px 26px 0; }

/* Contact */
.contact { padding: 40px 0 120px; }
.contact__card {
  display: block; text-align: center;
  padding: 72px 56px; border-radius: 28px; position: relative; overflow: hidden;
  background:
    radial-gradient(60% 80% at 0% 0%, rgba(52,245,164,.14), transparent 60%),
    radial-gradient(60% 80% at 100% 100%, rgba(22,184,243,.14), transparent 60%),
    var(--surface);
  border: 1px solid var(--line-2);
}
.contact__copy { max-width: 720px; margin-inline: auto; }
.contact__copy .muted { margin-top: 20px; font-size: 18px; }
.contact__mail { display: inline-block; margin-top: 32px; font: 600 clamp(24px, 4vw, 40px) var(--display); background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; border-bottom: 1px solid rgba(52,245,164,.4); padding-bottom: 4px; }

/* Footer */
.footer { border-top: 1px solid var(--line); padding: 34px 0; }
.footer__inner { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.footer p { color: var(--dim); font-size: 13px; margin-right: auto; }
.footer a:last-child { color: var(--muted); font-size: 14px; }
.footer a:last-child:hover { color: var(--accent); }

/* Reveal */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.8,.2,1); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { min-height: 440px; max-width: 620px; }
  .cards, .industries, .stack, .plans { grid-template-columns: 1fr 1fr; }
  .split, .faq { grid-template-columns: 1fr; gap: 40px; }
  .split__copy { position: static; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 44px; }
  .steps::before { display: none; }
  .contact__card { padding: 48px 32px; }
  .platforms .wrap { flex-direction: column; align-items: flex-start; gap: 14px; }
}
@media (max-width: 820px) {
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: block; }
}
@media (max-width: 640px) {
  .wrap { width: calc(100% - 32px); }
  .hero { padding: 56px 0 72px; }
  .lead { font-size: 17px; }
  .hero__visual { min-height: 380px; }
  .window { width: 100%; }
  .code { font-size: 11.5px; padding: 16px; }
  .device { width: 70%; }
  .chip--b { display: none; }
  .section { padding: 80px 0; }
  .section__head { margin-bottom: 40px; }
  .cards, .industries, .stack, .plans, .features, .steps { grid-template-columns: 1fr; }
  .plans { gap: 28px; }
  .contact__card { padding: 28px 22px; border-radius: 22px; }
  .hide-sm { display: none; }
  details p { padding-right: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; }
  .gauge-arc { stroke-dashoffset: 30; }
}