:root {
  --bg: #000; --surface: #1d1d1f; --line: rgba(255,255,255,.12);
  --text: #f5f5f7; --text-2: #a1a1a6; --text-3: #6e6e73; --link: #2997ff;
  --radius: 28px; --nav-h: 48px; --gutter: 16px; --max: 1080px;
  --ease: cubic-bezier(.22,.61,.36,1);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", "Segoe UI", Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
.defs { position: absolute; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 17px; line-height: 1.47; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
body.menu-open { overflow: hidden; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
::selection { background: rgba(41,151,255,.35); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
@media (min-width: 735px) { :root { --gutter: 32px; } }

/* ---------- nav ---------- */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--nav-h); background: rgba(0,0,0,.72); -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid rgba(255,255,255,.08); }
.nav .wrap { display: flex; align-items: center; height: 100%; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; font-size: 17px; letter-spacing: -.01em; }
.brand:hover { text-decoration: none; }
.brand svg { width: 22px; height: 22px; display: block; fill: #fff; }
.nav-links { margin-left: auto; display: none; gap: 26px; }
.nav-links a { color: var(--text-2); font-size: 12px; padding: 4px 0; border-bottom: 1px solid transparent; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-links a.active { color: var(--text); border-color: var(--text); }
.nav-cta { margin-left: auto; }
.menu-btn { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; margin-right: -8px; background: none; border: 0; cursor: pointer; }
.menu-btn span { position: relative; width: 18px; height: 1.5px; background: #fff; transition: background .3s; }
.menu-btn span::before, .menu-btn span::after { content: ""; position: absolute; left: 0; width: 18px; height: 1.5px; background: #fff; transition: transform .3s var(--ease), top .3s var(--ease); }
.menu-btn span::before { top: -6px; } .menu-btn span::after { top: 6px; }
.menu-open .menu-btn span { background: transparent; }
.menu-open .menu-btn span::before { top: 0; transform: rotate(45deg); }
.menu-open .menu-btn span::after { top: 0; transform: rotate(-45deg); }
.menu { position: fixed; inset: var(--nav-h) 0 0 0; z-index: 49; background: rgba(0,0,0,.94); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px); padding: 24px var(--gutter) calc(24px + env(safe-area-inset-bottom)); display: none; flex-direction: column; }
.menu-open .menu { display: flex; }
.menu a { color: var(--text); font-size: 24px; font-weight: 600; letter-spacing: -.02em; padding: 12px 0; border-bottom: 1px solid var(--line); }
.menu a:hover { text-decoration: none; }
.menu .pill { margin-top: 20px; align-self: flex-start; border: 0; color: #000; }
@media (min-width: 900px) { .nav-links { display: flex; } .nav-links + .nav-cta { margin-left: 0; } .menu-btn, .menu { display: none !important; } }
.pill { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: #fff; color: #000; font-weight: 500; font-size: 12px; line-height: 1; padding: 8px 14px; border-radius: 980px; white-space: nowrap; transition: background .2s var(--ease); }
.pill:hover { background: #e8e8ed; text-decoration: none; }
.pill.lg { font-size: 17px; padding: 14px 24px; }
.pill.ghost { background: transparent; color: var(--text); border: 1px solid rgba(255,255,255,.35); }
.pill.ghost:hover { background: rgba(255,255,255,.08); }

/* ---------- hero (scroll-bound logo) ---------- */
.hero { position: relative; height: 220svh; }
.hero .stage { position: sticky; top: 0; height: 100svh; overflow: hidden; display: grid; place-items: center; --p1: 0; --p2: 0; --p3: 0; }
.mark { --s: min(64vw, 400px); --spread: min(22vw, 360px); position: relative; width: var(--s); height: var(--s); }
.mark svg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; overflow: visible; fill: #fff; }
.mark .bulb { opacity: calc(1 - var(--p2)); filter: drop-shadow(0 0 calc(var(--p1) * 22px) rgba(255,255,255,calc(.15 + var(--p1) * .55))); transform: translateY(calc(var(--p2) * -18%)) scale(calc(1 - var(--p2) * .45)); }
.mark .shield { opacity: calc(var(--p1) * (1 - var(--p2))); transform: translateY(calc(var(--p2) * -18%)) scale(calc(.82 + var(--p1) * .18 - var(--p2) * .45)); }
.mark .lb { transform: translateX(calc(var(--p2) * -1 * var(--spread) + (1 - var(--p1)) * 6%)); }
.mark .rb { transform: translateX(calc(var(--p2) * var(--spread) + (1 - var(--p1)) * -6%)); }
.mark .bulb, .mark .shield { transform-origin: 50% 47%; }
.mark .lb, .mark .rb { opacity: calc(1 - var(--p3)); }
.hero-copy { position: absolute; left: 50%; top: 50%; transform: translate(-50%, calc(-50% + (1 - var(--p3)) * 24px)); width: min(100% - 2 * var(--gutter), 860px); text-align: center; opacity: var(--p3); pointer-events: none; }
.hero-copy h1 { margin: 0; font-weight: 700; letter-spacing: -.03em; line-height: 1.04; font-size: clamp(30px, 6vw, 76px); }
.hero-copy h1 span { display: block; color: var(--text-2); font-size: .62em; font-weight: 600; margin-top: .25em; letter-spacing: -.02em; }
.hero-copy p { color: var(--text-2); font-size: clamp(15px, 1.8vw, 21px); line-height: 1.4; margin: 22px auto 0; max-width: 640px; }
.hero-copy p b { color: var(--text); font-weight: 600; }
.hero-copy .actions { display: flex; gap: 12px; justify-content: center; margin-top: 28px; flex-wrap: wrap; pointer-events: auto; }
.scroll-hint { position: absolute; bottom: max(24px, env(safe-area-inset-bottom)); left: 50%; transform: translateX(-50%); color: var(--text-3); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; opacity: calc(1 - var(--p1) * 3); display: flex; flex-direction: column; align-items: center; gap: 8px; }
.scroll-hint span { width: 1px; height: 28px; background: linear-gradient(to bottom, var(--text-3), transparent); }
@media (max-width: 600px) {
  .mark { --s: 60vw; --spread: 30vw; }
  .mark .lb { transform: translateX(calc(var(--p2) * -1 * var(--spread) + (1 - var(--p1)) * 6%)) scale(calc(1 - var(--p2) * .45)); }
  .mark .rb { transform: translateX(calc(var(--p2) * var(--spread) + (1 - var(--p1)) * -6%)) scale(calc(1 - var(--p2) * .45)); }
  .hero-copy h1 { font-size: clamp(25px, 7.6vw, 36px); }
  .hero-copy p { font-size: 15px; margin-top: 14px; }
  .hero-copy .actions { margin-top: 20px; }
  .hero-copy .actions .pill.lg { font-size: 15px; padding: 12px 18px; }
}
@media (max-height: 560px) { .hero { height: 180svh; } .hero-copy .actions { display: none; } }

/* ---------- sections ---------- */
section { padding: clamp(72px, 10vw, 130px) 0; }
.eyebrow { color: var(--text-2); font-size: 15px; font-weight: 600; margin: 0 0 12px; }
h2 { font-size: clamp(32px, 5vw, 60px); font-weight: 700; letter-spacing: -.025em; line-height: 1.06; margin: 0 0 22px; max-width: 900px; }
.center { text-align: center; } .center h2 { margin-left: auto; margin-right: auto; }
.lead { color: var(--text-2); font-size: clamp(18px, 2vw, 22px); line-height: 1.42; max-width: 720px; margin: 0; }
.lead b { color: var(--text); font-weight: 600; }
.center .lead { margin-left: auto; margin-right: auto; }
.band { background: var(--surface); }
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; } .reveal.d2 { transition-delay: .16s; } .reveal.d3 { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* diagram */
.diagram { margin-top: 44px; background: var(--surface); border-radius: var(--radius); padding: clamp(20px, 3.5vw, 40px); }
.flow { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 900px) { .flow { grid-template-columns: 1fr auto 1.1fr auto 1fr; } }
.node { background: var(--bg); border: 1px solid var(--line); border-radius: 20px; padding: 20px; }
.node h4 { margin: 0 0 6px; font-size: 15px; font-weight: 600; }
.node p { margin: 0; color: var(--text-2); font-size: 14px; line-height: 1.4; }
.node ul { margin: 12px 0 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 6px; }
.node li { font-size: 12px; color: var(--text-2); border: 1px solid var(--line); border-radius: 999px; padding: 4px 9px; white-space: nowrap; }
.node.core { border-color: rgba(255,255,255,.35); position: relative; }
.node.core .tag { position: absolute; top: -11px; left: 18px; background: #fff; color: #000; font-size: 11px; font-weight: 600; padding: 3px 9px; border-radius: 999px; }
.arrow { display: flex; align-items: center; justify-content: center; color: var(--text-3); }
.arrow svg { width: 26px; height: 26px; transform: rotate(90deg); }
@media (min-width: 900px) { .arrow svg { transform: none; } }
.arrow .pulse { stroke-dasharray: 4 6; animation: dash 1.6s linear infinite; }
@keyframes dash { to { stroke-dashoffset: -20; } }
@media (prefers-reduced-motion: reduce) { .arrow .pulse { animation: none; } }
.note { margin: 16px 0 0; color: var(--text-3); font-size: 13px; }
.ticker { margin-top: 22px; overflow: hidden; -webkit-mask-image: linear-gradient(to right, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(to right, transparent, #000 12%, #000 88%, transparent); }
.ticker .track { display: flex; width: max-content; animation: ticker 36s linear infinite; }
.ticker ul { margin: 0; padding: 0 4px 0 0; list-style: none; display: flex; gap: 8px; flex: 0 0 auto; }
.ticker li { font-size: 13px; color: var(--text-2); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; white-space: nowrap; }
@keyframes ticker { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .ticker { -webkit-mask-image: none; mask-image: none; }
  .ticker .track { animation: none; width: auto; }
  .ticker ul { flex-wrap: wrap; } .ticker ul[aria-hidden] { display: none; }
}

/* three columns */
.cols { display: grid; gap: 14px; grid-template-columns: 1fr; margin-top: 44px; }
@media (min-width: 600px) { .cols { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 800px) { .cols.three { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1000px) { .cols { grid-template-columns: repeat(4, 1fr); } .cols.three { grid-template-columns: repeat(3, 1fr); } }
.col { background: var(--surface); border-radius: 22px; padding: 24px; }
.band .col { background: var(--bg); border: 1px solid var(--line); }
.col h3 { margin: 0 0 8px; font-size: 21px; font-weight: 600; letter-spacing: -.015em; line-height: 1.15; }
.col p { margin: 0; color: var(--text-2); font-size: 15px; line-height: 1.45; }
.col p b { color: var(--text); font-weight: 600; }
.col .q { display: block; color: var(--text-3); font-size: 13px; margin-bottom: 10px; }

/* what it is not */
.nots { margin-top: 36px; max-width: 820px; }
.not { display: grid; grid-template-columns: 1fr; gap: 2px 24px; padding: 18px 0; border-top: 1px solid var(--line); }
.not:last-child { border-bottom: 1px solid var(--line); }
@media (min-width: 600px) { .not { grid-template-columns: 200px 1fr; } }
.not b { font-size: 19px; font-weight: 600; letter-spacing: -.01em; }
.not span { color: var(--text-2); font-size: 16px; }

/* enterprise */
.list { margin: 40px 0 0; padding: 0; list-style: none; display: grid; gap: 0 32px; grid-template-columns: 1fr; }
@media (min-width: 735px) { .list { grid-template-columns: 1fr 1fr; } }
.list li { padding: 14px 0; border-top: 1px solid var(--line); font-size: 15px; color: var(--text-2); line-height: 1.45; }
.list li b { color: var(--text); font-weight: 600; display: block; margin-bottom: 2px; }
.proof { margin: 0; color: var(--text); font-size: clamp(18px, 2vw, 22px); line-height: 1.4; max-width: 820px; }
.proof span { color: var(--text-2); }

/* pricing */
.price { display: grid; gap: 14px; grid-template-columns: 1fr; margin-top: 40px; }
@media (min-width: 900px) { .price { grid-template-columns: repeat(3, 1fr); } }
.tier { background: var(--surface); border-radius: var(--radius); padding: 26px; display: flex; flex-direction: column; gap: 8px; }
.tier.hi { border: 1px solid rgba(255,255,255,.35); }
.tier .n { font-size: 14px; color: var(--text-2); font-weight: 600; }
.tier .v { font-size: clamp(28px, 3vw, 34px); font-weight: 700; letter-spacing: -.03em; line-height: 1.05; }
.tier p { margin: 0; color: var(--text-2); font-size: 15px; line-height: 1.45; }
.tier .cta { margin-top: auto; padding-top: 16px; }

/* faq */
.faq { max-width: 820px; margin: 32px auto 0; border-top: 1px solid var(--line); text-align: left; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 0; font-size: clamp(17px, 2vw, 21px); font-weight: 600; letter-spacing: -.012em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .plus { flex: 0 0 auto; width: 26px; height: 26px; border-radius: 50%; border: 1px solid rgba(255,255,255,.3); position: relative; transition: transform .35s var(--ease); }
.faq summary .plus::before, .faq summary .plus::after { content: ""; position: absolute; left: 50%; top: 50%; background: #fff; transform: translate(-50%,-50%); }
.faq summary .plus::before { width: 11px; height: 1.5px; } .faq summary .plus::after { width: 1.5px; height: 11px; }
.faq details[open] summary .plus { transform: rotate(45deg); }
.faq .a { color: var(--text-2); font-size: 16px; line-height: 1.5; padding: 0 0 22px; max-width: 700px; }
.faq .a p { margin: 0; }

/* cta + footer */
.cta-final .actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 28px; }
.cta-final .small { color: var(--text-3); font-size: 13px; margin-top: 18px; }
footer { border-top: 1px solid var(--line); padding: 28px 0 calc(24px + env(safe-area-inset-bottom)); color: var(--text-3); font-size: 12px; }
footer .row { display: flex; flex-wrap: wrap; gap: 10px 22px; align-items: center; }
footer a { color: var(--text-2); }
footer .grow { flex: 1 1 100%; }
@media (min-width: 735px) { footer .grow { flex: 1 1 auto; } }

/* legal pages */
.legal { padding: calc(var(--nav-h) + clamp(48px, 8vw, 96px)) 0 clamp(64px, 8vw, 120px); }
.legal .wrap { max-width: 760px; }
.legal h1 { font-size: clamp(32px, 5vw, 56px); font-weight: 700; letter-spacing: -.025em; line-height: 1.06; margin: 0 0 18px; }
.legal h2 { font-size: 21px; font-weight: 600; letter-spacing: -.012em; line-height: 1.2; margin: 40px 0 10px; max-width: none; }
.legal p, .legal li { color: var(--text-2); font-size: 16px; line-height: 1.55; margin: 0 0 12px; }
.legal .lead { font-size: clamp(17px, 2vw, 20px); margin-bottom: 8px; }
.legal ul { margin: 0 0 12px; padding-left: 20px; }
.legal li { margin-bottom: 6px; }
.legal a { color: var(--link); }
.legal .dim { color: var(--text-3); font-size: 14px; margin-top: 28px; }