:root {
  --ink: #1a1a1a;
  --muted: #5c5c5c;
  --bg: #ffffff;
  --card: #f3f4f6;
  --pill: #eceff1;
  --line: #e6e6e6;
  --blue: #2f6fed;
  --header: 64px;
  --wrap: 1120px;
  --radius: 28px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

body.nav-lock { overflow: hidden; }

h1, h2, h3, h4, p, ul { margin: 0; }
ul { padding: 0; list-style: none; }
button, input { font: inherit; color: inherit; }
a { color: inherit; }

img, svg { display: block; }

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 80;
  background: #111;
  color: #fff;
  padding: 8px 12px;
  border-radius: 8px;
}

.skip:focus { top: 8px; }

.wrap {
  width: min(var(--wrap), calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header);
  background: #fff;
  border-bottom: 1px solid #efefef;
}

.bar {
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
  flex: 0 0 auto;
}

.mark { width: 22px; height: 22px; }

.primary-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  min-width: 0;
}

.nav-item { position: static; }

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  height: 36px;
  padding: 0 12px;
  border: 0;
  background: transparent;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  color: var(--ink);
  white-space: nowrap;
}

.nav-btn:hover,
.nav-btn:focus-visible { background: #f6f7f8; }

.nav-btn[aria-expanded="true"] { background: var(--pill); }

.chevron {
  width: 16px;
  height: 16px;
  transition: transform 160ms ease;
}

.nav-btn[aria-expanded="true"] .chevron { transform: rotate(180deg); }

.nav-toggle {
  display: none;
  margin-left: auto;
  height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid #dadada;
  background: #fff;
  cursor: pointer;
}

.nav-toggle .label-close { display: none; }
.site-header.is-open .nav-toggle .label-open { display: none; }
.site-header.is-open .nav-toggle .label-close { display: inline; }

.bar-cta { flex: 0 0 auto; margin-left: auto; }

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: transparent;
  text-decoration: none;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
}

.pill-primary {
  background: #111;
  color: #fff;
}

.pill-primary:hover { background: #000; }

.pill-on-dark { box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.28); }

.pill-secondary {
  background: #fff;
  color: var(--ink);
  border-color: #dadada;
}

.pill-secondary:hover { background: #f6f7f8; }

.pill-ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.42);
}

.pill-ghost:hover { background: rgba(255, 255, 255, 0.08); }

.pill-invert {
  background: #fff;
  color: #111;
}

.pill-invert:hover { background: #f2f2f2; }

.mega {
  position: absolute;
  top: calc(100% + 8px);
  left: max(16px, calc(50% - 480px));
  width: min(960px, calc(100vw - 32px));
  background: #fff;
  border-radius: 24px;
  border: 1px solid #eee;
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.1);
  padding: 28px;
  z-index: 60;
}

.mega::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -14px;
  height: 14px;
}

.mega[hidden] { display: none !important; }

.mega-grid {
  display: grid;
  grid-template-columns: minmax(200px, 280px) 1fr;
  gap: 28px;
  align-items: start;
}

.mega-title {
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.mega-copy {
  margin: 8px 0 16px;
  color: var(--muted);
  font-size: 0.95rem;
}

.mega-list { display: grid; gap: 4px; }

.mega-list a {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 14px;
}

.mega-list a:hover,
.mega-list a:focus-visible { background: var(--card); }

.mega-list strong {
  display: block;
  font-weight: 500;
}

.mega-list a span span {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
}

.mega-icon {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  margin-top: 2px;
  color: var(--ink);
}

.mega-icon svg { width: 28px; height: 28px; }

.hero {
  position: relative;
  min-height: calc(100svh - var(--header));
  background: #0e0e10;
  color: #fff;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 72px 24px;
}

.hero-canvas,
.hero-arc {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero-arc { z-index: 0; }

.hero-copy {
  position: relative;
  z-index: 1;
  width: min(820px, 100%);
  text-align: center;
}

.hero-copy::before {
  content: "";
  position: absolute;
  inset: -40% -10%;
  background: radial-gradient(ellipse at center, rgba(14, 14, 16, 0.78), rgba(14, 14, 16, 0) 70%);
  z-index: -1;
}

.eyebrow {
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2.6rem, 6.4vw, 4.75rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.hero-sub {
  margin: 18px auto 0;
  max-width: 38rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.hero :focus-visible { outline-color: #fff; }

.usecases { padding: 96px 0 40px; }

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 28px;
}

.section-head-left {
  text-align: left;
  margin-left: 0;
}

.section-head h2,
.product-copy h2,
.resources h2,
.contact h2,
.close-inner h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.section-head p,
.contact-lead {
  margin-top: 10px;
  color: var(--muted);
}

.tablist {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.tab {
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: #fff;
  cursor: pointer;
}

.tab:hover { background: #f6f7f8; }

.tab[aria-selected="true"] {
  border-color: #1a1a1a;
  background: #fff;
}

.cluster-frame {
  height: 340px;
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}

#cluster-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.panels { margin-top: 28px; }

.panel h3 {
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  text-align: center;
}

.panel > p {
  max-width: 680px;
  margin: 10px auto 0;
  text-align: center;
  color: var(--muted);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.cards li {
  background: var(--card);
  border-radius: 20px;
  padding: 22px 20px 24px;
}

.cards h4 {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 6px;
}

.cards p { color: var(--muted); font-size: 0.95rem; }

.products { padding: 40px 0 20px; }

.product { padding: 72px 0; }

.product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.product-flip .product-grid { direction: rtl; }
.product-flip .product-grid > * { direction: ltr; }

.kicker {
  color: var(--blue);
  font-weight: 500;
  font-size: 0.92rem;
  margin-bottom: 8px;
}

.product-copy p { margin-top: 12px; color: var(--muted); max-width: 42ch; }

.points { margin-top: 18px; display: grid; gap: 8px; }

.points li {
  padding-left: 16px;
  position: relative;
}

.points li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
  position: absolute;
  left: 0;
  top: 0.55em;
}

.stage {
  background: #111;
  color: #fff;
  border-radius: var(--radius);
  min-height: 420px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.stage-top {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.8);
}

.stage-tag {
  margin-left: auto;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 0.75rem;
}

.led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
}

.led-green { background: #3dbe78; }
.led-orange { background: #f08a3c; }

.sheet {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 14px 16px;
}

.sheet p,
.stage-note { color: rgba(255, 255, 255, 0.72); font-size: 0.92rem; }

.sheet-label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 6px;
}

.minis { display: flex; flex-wrap: wrap; gap: 8px; }

.minis span,
.providers li {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.85rem;
}

.mesh { width: 100%; height: auto; margin-top: 12px; }

.stage-note { margin-top: auto; }

.console {
  margin-top: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  overflow: hidden;
}

.console-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr 0.8fr;
  gap: 8px;
  padding: 12px 14px;
  font-size: 0.92rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.console-row.head {
  border-top: 0;
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ok { color: #8fd0a8; }

.wave {
  height: 140px;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 12px 8px 0;
}

.wave span {
  flex: 1;
  background: linear-gradient(#2f6fed, #3dbe78 60%, #f08a3c);
  border-radius: 999px 999px 4px 4px;
  opacity: 0.9;
}

.providers {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.resources { padding: 24px 0 80px; }

.resource-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 22px;
}

.resource-list a {
  display: block;
  text-decoration: none;
  background: var(--card);
  border-radius: 18px;
  padding: 18px 18px 20px;
}

.resource-list a:hover { background: #eceef1; }

.resource-list strong { display: block; font-weight: 500; }
.resource-list span { color: var(--muted); }

.close-band {
  position: relative;
  background: #0e0e10;
  color: #fff;
  min-height: 380px;
  display: grid;
  place-items: center;
  overflow: hidden;
  text-align: center;
  padding: 72px 24px;
}

#band-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.close-inner { position: relative; z-index: 1; max-width: 560px; }

.close-inner p {
  margin: 12px 0 22px;
  color: rgba(255, 255, 255, 0.75);
}

.close-band :focus-visible { outline-color: #fff; }

.contact { padding: 88px 0 96px; }

.contact-wrap { max-width: 480px; }

.contact-wrap h2,
.contact-lead { text-align: left; }

#contact-form { margin-top: 22px; display: grid; gap: 14px; }

.field { display: grid; gap: 6px; }

.field label { font-weight: 500; font-size: 0.92rem; }

.field input {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid #d9d9d9;
  background: #fff;
}

.field input:focus-visible { border-color: var(--blue); }

.thanks {
  margin-top: 18px;
  font-size: 1.25rem;
  font-weight: 500;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 36px;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-inner strong { color: var(--ink); font-weight: 500; }

.host-note {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--muted);
}

section[id],
article[id] { scroll-margin-top: calc(var(--header) + 16px); }

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; margin-left: 8px; }

  .bar-cta { min-height: 36px; padding: 0 12px; font-size: 0.92rem; }

  .primary-nav {
    display: none;
    position: absolute;
    top: var(--header);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 8px 16px 20px;
    max-height: calc(100dvh - var(--header));
    overflow: auto;
    border-bottom: 1px solid var(--line);
    z-index: 55;
  }

  .site-header.is-open .primary-nav { display: flex; }

  .nav-btn {
    width: 100%;
    justify-content: space-between;
    height: 44px;
  }

  .mega {
    position: static;
    width: auto;
    left: auto;
    margin: 4px 0 8px;
    box-shadow: none;
    padding: 8px 8px 12px;
    border-radius: 16px;
  }

  .mega::before { display: none; }

  .mega-grid { grid-template-columns: 1fr; gap: 12px; }

  .product-grid,
  .product-flip .product-grid {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 28px;
  }

  .cards,
  .resource-list { grid-template-columns: 1fr; }

  .wrap { width: min(var(--wrap), calc(100% - 32px)); }

  .hero { padding: 64px 20px; min-height: 78svh; }

  .usecases { padding-top: 64px; }

  .cluster-frame { height: 240px; }

  .product { padding: 48px 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .chevron { transition: none; }
}

.mesh .flows line { stroke-dasharray: 5 7; animation: gpt-flow 2.8s linear infinite; }
.mesh .flows line:nth-child(2) { animation-delay: .35s; }
.mesh .flows line:nth-child(3) { animation-delay: .7s; }
.mesh .flows line:nth-child(4) { animation-delay: 1.05s; }
.mesh .flows line:nth-child(5) { animation-delay: 1.4s; }
.mesh .hub { animation: gpt-hub 2.8s ease-in-out infinite; }
.mesh .nodes circle { transform-box: fill-box; transform-origin: center; animation: gpt-node 2.8s ease-in-out infinite; }
.mesh .nodes circle:nth-child(2) { animation-delay: .35s; }
.mesh .nodes circle:nth-child(3) { animation-delay: .7s; }
.mesh .nodes circle:nth-child(4) { animation-delay: 1.05s; }
.mesh .nodes circle:nth-child(5) { animation-delay: 1.4s; }
@keyframes gpt-flow { to { stroke-dashoffset: -48; } }
@keyframes gpt-hub { 50% { stroke-width: 3.5; filter: drop-shadow(0 0 10px rgba(47, 111, 237, 0.85)); } }
@keyframes gpt-node { 50% { transform: scale(1.08); stroke-opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .mesh .flows line, .mesh .hub, .mesh .nodes circle { animation: none; }
}