/* Kavent: dark glass, violet-to-cyan accents, the same look as the product. */
:root {
  --bg: #070914; --bg-2: #0b0e1f; --ink: #e6e8f5; --ink-2: #9aa1c4; --ink-3: #6b7299;
  --violet: #a78bfa; --cyan: #22d3ee; --emerald: #34d399;
  --glass: rgba(17, 20, 42, 0.62); --edge: rgba(167, 139, 250, 0.18);
  --grad: linear-gradient(92deg, var(--violet), var(--cyan));
  --sans: "Inter", -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0; font: 16px/1.6 var(--sans); color: var(--ink); background: var(--bg);
  background-image:
    radial-gradient(900px 520px at 8% -8%, rgba(139, 92, 246, 0.22), transparent 60%),
    radial-gradient(800px 480px at 100% 0%, rgba(34, 211, 238, 0.12), transparent 60%);
  background-repeat: no-repeat; -webkit-font-smoothing: antialiased;
}
::selection { background: rgba(167, 139, 250, 0.35); }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; letter-spacing: -0.025em; line-height: 1.12; }
h2 { font-size: clamp(30px, 4vw, 44px); font-weight: 750; margin-bottom: 14px; }
p { margin: 0 0 14px; }
em { color: #fff; font-style: normal; font-weight: 600; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.section { padding: 110px 24px; }
.band { padding: 110px 0; background: linear-gradient(180deg, transparent, rgba(17, 20, 42, 0.55) 20%, rgba(17, 20, 42, 0.55) 80%, transparent); border-top: 1px solid rgba(167,139,250,.08); border-bottom: 1px solid rgba(167,139,250,.08); }
.eyebrow { font: 600 12px var(--mono); letter-spacing: 0.2em; text-transform: uppercase; color: var(--cyan); margin-bottom: 14px; }
.sub { color: var(--ink-2); font-size: 18px; max-width: 760px; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.code { font: 0.88em var(--mono); color: var(--cyan); background: rgba(34, 211, 238, 0.08); padding: 1px 6px; border-radius: 6px; }

/* nav */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(7, 9, 20, 0.72); backdrop-filter: blur(14px);
  border-bottom: 1px solid; border-image: linear-gradient(90deg, transparent, var(--violet), var(--cyan), transparent) 1; }
.nav-in { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; letter-spacing: -0.03em; }
.brand i { width: 15px; height: 15px; border-radius: 3px; transform: rotate(45deg); background: var(--grad); box-shadow: 0 0 16px rgba(167, 139, 250, 0.7); }
.links { display: flex; gap: 24px; margin-left: auto; font-size: 14.5px; color: var(--ink-2); }
.links a:hover { color: var(--ink); }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; border-radius: 999px; border: 0; cursor: pointer;
  font: 600 15px var(--sans); color: #0a0b18; background: var(--grad); box-shadow: 0 10px 36px -12px rgba(139, 92, 246, 0.8);
  transition: transform 0.2s, box-shadow 0.2s; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 14px 40px -10px rgba(34, 211, 238, 0.7); }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn-ghost { color: var(--ink); background: transparent; border: 1px solid var(--edge); box-shadow: none; }
.btn-ghost:hover { border-color: var(--cyan); background: rgba(34, 211, 238, 0.06); box-shadow: none; }

/* hero */
.hero { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: center; padding-top: 90px; padding-bottom: 90px; }
h1 { font-size: clamp(38px, 4.4vw, 56px); font-weight: 800; letter-spacing: -0.04em; margin-bottom: 22px; }
.lead { font-size: 18.5px; color: var(--ink-2); max-width: 560px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin: 30px 0 0; }
.pillars { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 12px; }
.pillars li { display: grid; grid-template-columns: 38px 1fr; align-items: center; gap: 0 14px; font-size: 14px; line-height: 1.35; color: var(--ink-2); }
.pillars span { grid-row: span 2; display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; font-weight: 700;
  color: var(--cyan); background: rgba(34, 211, 238, 0.08); border: 1px solid rgba(34, 211, 238, 0.3); }
.pillars b { display: block; color: var(--ink); font-size: 16.5px; }
.hybrid-line { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin: 22px 0 0; font-size: 15px; color: var(--ink); }
.chip { font: 600 11px var(--mono); letter-spacing: 0.14em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px;
  color: var(--violet); border: 1px solid rgba(167, 139, 250, 0.5); background: rgba(167, 139, 250, 0.12); }
.frame { margin: 0; border-radius: 16px; overflow: hidden; border: 1px solid var(--edge); background: var(--bg-2);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.06), 0 40px 100px -40px rgba(139, 92, 246, 0.7); }
.frame video { display: block; width: 100%; aspect-ratio: 16 / 9; }

/* pilot */
.shift { display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: stretch; margin: 46px 0 28px; }
.shift > div:not(.arrow) { padding: 26px 28px; border-radius: 16px; border: 1px solid var(--edge); background: var(--glass); }
.shift h3 { font: 600 12px var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 12px; }
.shift ul { margin: 0; padding-left: 18px; }
.shift li { margin: 6px 0; }
.then li { color: var(--ink-3); }
.now { border-color: rgba(34, 211, 238, 0.4) !important; background: linear-gradient(150deg, rgba(139, 92, 246, 0.16), rgba(34, 211, 238, 0.06)), var(--glass) !important; }
.now h3 { color: var(--cyan) !important; }
.arrow { align-self: center; font-size: 30px; color: var(--violet); }
.dials { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.dial { padding: 22px; border-radius: 14px; border: 1px solid var(--edge); background: var(--glass); }
.dial .ico { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; margin-bottom: 14px; font-weight: 700;
  color: var(--cyan); background: rgba(34, 211, 238, 0.08); border: 1px solid rgba(34, 211, 238, 0.3); }
.dial h4 { font-size: 17px; margin-bottom: 6px; }
.dial p { color: var(--ink-2); font-size: 14.5px; margin: 0; }

/* demo */
.demos { display: grid; grid-template-columns: 320px 1fr; gap: 26px; margin-top: 40px; align-items: start; }
.demo-tabs { display: flex; flex-direction: column; gap: 10px; }
.demo-tabs button { text-align: left; cursor: pointer; padding: 16px 18px; border-radius: 14px; color: var(--ink);
  font: 600 16px var(--sans); background: transparent; border: 1px solid var(--edge); transition: all 0.2s; }
.demo-tabs button span { font: 600 12px var(--mono); color: var(--ink-3); margin-right: 8px; }
.demo-tabs button small { display: block; font-weight: 400; font-size: 13.5px; color: var(--ink-2); margin-top: 4px; }
.demo-tabs button:hover { border-color: rgba(34, 211, 238, 0.4); }
.demo-tabs button.on { border-color: rgba(34, 211, 238, 0.55); background: linear-gradient(150deg, rgba(139, 92, 246, 0.16), rgba(34, 211, 238, 0.06)); }
.demo-tabs button.on span { color: var(--cyan); }

/* features */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 44px; }
.features article { padding: 24px; border-radius: 14px; border: 1px solid var(--edge); background: var(--glass); transition: border-color 0.2s, transform 0.2s; }
.features article:hover { border-color: rgba(34, 211, 238, 0.45); transform: translateY(-2px); }
.features h4 { font-size: 17px; margin-bottom: 8px; display: flex; gap: 10px; align-items: center; }
.features h4::before { content: ""; flex: none; width: 8px; height: 8px; border-radius: 2px; background: var(--grad); box-shadow: 0 0 10px rgba(167, 139, 250, 0.7); }
.features p { color: var(--ink-2); font-size: 14.5px; margin: 0; }

/* flow */
.flow { list-style: none; padding: 0; margin: 44px 0 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; counter-reset: s; }
.flow li { position: relative; padding: 22px 18px; border-radius: 14px; border: 1px solid var(--edge); background: var(--glass); counter-increment: s; }
.flow li::before { content: "0" counter(s); display: block; font: 600 12px var(--mono); color: var(--cyan); margin-bottom: 10px; }
.flow li:not(:last-child)::after { content: "→"; position: absolute; right: -11px; top: 50%; transform: translateY(-50%); color: var(--violet); z-index: 1; }
.flow b { display: block; font-size: 17px; margin-bottom: 4px; }
.flow span { color: var(--ink-2); font-size: 14px; }

/* name */
.name { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; align-items: center; }
.name p { color: var(--ink-2); font-size: 17px; }
.name b { color: var(--ink); }
.name-word { text-align: center; padding: 48px 24px; border-radius: 20px; border: 1px solid var(--edge);
  background: radial-gradient(circle at 50% 40%, rgba(139, 92, 246, 0.22), transparent 70%), var(--glass); }
.name-word .he { display: block; font: 700 clamp(80px, 11vw, 130px)/1.4 "Heebo", var(--sans); padding-bottom: 6px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.name-word .tr { font: 500 13px var(--mono); color: var(--ink-2); letter-spacing: 0.04em; }

/* trust */
.trust { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.checks li { padding: 14px 16px 14px 42px; position: relative; border-radius: 12px; border: 1px solid var(--edge); background: var(--glass); font-size: 14.5px; }
.checks li::before { content: "✓"; position: absolute; left: 16px; color: var(--emerald); font-weight: 700; }

/* cta */
.cta { text-align: center; padding: 100px 24px 120px; }
.cta h2 { font-size: clamp(36px, 5vw, 56px); }
.cta p { color: var(--ink-2); font-size: 18px; }
.signup { display: flex; gap: 10px; justify-content: center; margin-top: 28px; flex-wrap: wrap; }
.signup input { width: min(340px, 100%); padding: 13px 18px; border-radius: 999px; border: 1px solid var(--edge); background: var(--glass);
  color: var(--ink); font: 15px var(--sans); outline: none; }
.signup input:focus { border-color: var(--cyan); }
.thanks { color: var(--emerald) !important; font-weight: 600; }

.foot { border-top: 1px solid rgba(167, 139, 250, 0.12); padding: 28px 0; color: var(--ink-3); font-size: 14px; }
.foot-in { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }

/* narrower screens */
@media (max-width: 960px) {
  .hero, .demos, .name, .trust { grid-template-columns: 1fr; }
  .hero { padding-top: 56px; gap: 40px; }
  .features { grid-template-columns: 1fr 1fr; }
  .dials { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: 1fr; }
  .flow li:not(:last-child)::after { content: "↓"; right: auto; left: 50%; top: auto; bottom: -15px; transform: translateX(-50%); }
  .demo-tabs { flex-direction: row; overflow-x: auto; }
  .demo-tabs button { flex: 1 0 200px; }
  .name { gap: 32px; }
}
@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .section { padding: 72px 16px; }
  .band { padding: 72px 0; }
  .links { display: none; }
  .nav-in .btn { margin-left: auto; }
  .features, .dials, .checks { grid-template-columns: 1fr; }
  .shift { grid-template-columns: 1fr; }
  .arrow { transform: rotate(90deg); justify-self: center; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }

/* hybrid: the agent of choice and the local GPUs, with Kavent between them */
.hybrid { display: grid; grid-template-columns: 1fr 220px 1fr; gap: 20px; align-items: center; margin-top: 44px; }
.hy-side { padding: 26px 28px; border-radius: 16px; border: 1px solid var(--edge); background: var(--glass); }
.hy-side h3 { font-size: 21px; margin: 14px 0 8px; }
.hy-side p { color: var(--ink-2); font-size: 14.5px; margin-bottom: 8px; }
.hy-side ul { margin: 0; padding-left: 18px; font-size: 14.5px; }
.hy-side li { margin: 4px 0; }
.hy-tag { font: 600 11px var(--mono); letter-spacing: 0.12em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; border: 1px solid; }
.t-agent { color: var(--cyan); border-color: rgba(34, 211, 238, 0.45); background: rgba(34, 211, 238, 0.08); }
.t-gpu { color: var(--violet); border-color: rgba(167, 139, 250, 0.45); background: rgba(167, 139, 250, 0.1); }
.hy-core { position: relative; text-align: center; padding: 30px 18px; border-radius: 18px; border: 1px solid rgba(34, 211, 238, 0.5);
  background: radial-gradient(circle at 50% 30%, rgba(139, 92, 246, 0.3), transparent 75%), var(--glass);
  box-shadow: 0 0 60px -12px rgba(139, 92, 246, 0.6); }
.hy-core::before, .hy-core::after { content: ""; position: absolute; top: 50%; width: 20px; height: 2px; background: var(--grad); }
.hy-core::before { left: -21px; } .hy-core::after { right: -21px; }
.hy-core i { display: block; width: 26px; height: 26px; margin: 0 auto 14px; border-radius: 5px; transform: rotate(45deg);
  background: var(--grad); box-shadow: 0 0 22px rgba(167, 139, 250, 0.8); }
.hy-core h3 { font-size: 22px; margin-bottom: 6px; }
.hy-core p { color: var(--ink-2); font-size: 13.5px; margin: 0; }
.split { display: flex; height: 46px; margin-top: 34px; border-radius: 12px; overflow: hidden; border: 1px solid var(--edge); font-size: 14px; }
.split > div { display: flex; align-items: center; padding: 0 16px; white-space: nowrap; overflow: hidden; }
.sp-gpu { background: linear-gradient(90deg, rgba(167, 139, 250, 0.45), rgba(167, 139, 250, 0.25)); }
.sp-agent { background: rgba(34, 211, 238, 0.3); justify-content: center; }
.split b { margin-right: 6px; }
.split-note { color: var(--ink-3); font-size: 13.5px; margin-top: 10px; }
@media (max-width: 960px) {
  .hybrid { grid-template-columns: 1fr; }
  .hy-core::before, .hy-core::after { display: none; }
  .sp-agent b { margin: 0; } .sp-agent { font-size: 0; } .sp-agent b { font-size: 14px; }
}