:root {
  --bg: #090d15;
  --panel: #111827;
  --panel-soft: #151f32;
  --line: #283650;
  --text: #f3f6ff;
  --muted: #9aa8c3;
  --lime: #b9ff66;
  --mint: #7ef2c9;
  --blue: #73b8ff;
  --orange: #ff9b54;
  --shadow: 0 28px 80px rgba(0, 0, 0, .42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 8%, rgba(68, 109, 255, .16), transparent 27%),
    radial-gradient(circle at 88% 20%, rgba(126, 242, 201, .10), transparent 25%),
    var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

button,
input,
select {
  font: inherit;
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .13;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 155, 84, .55) 0 1px, transparent 2px),
    radial-gradient(circle at 70% 18%, rgba(185, 255, 102, .4) 0 1px, transparent 2px);
  background-size: 37px 41px, 53px 47px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  max-width: 1240px;
  margin: 0 auto;
  padding: 18px 26px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  align-items: center;
  background: rgba(9, 13, 21, .78);
  border-bottom: 1px solid rgba(40, 54, 80, .58);
  backdrop-filter: blur(18px);
}

.brand {
  text-decoration: none;
  font-size: 29px;
  font-weight: 950;
  letter-spacing: -.06em;
}

.brand span {
  color: var(--lime);
}

nav {
  display: flex;
  justify-content: center;
  gap: 28px;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

nav a:hover {
  color: var(--text);
}

.section {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 105px 0;
}

.hero {
  min-height: 770px;
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 66px;
  align-items: center;
  padding-top: 74px;
}

.eyebrow {
  color: var(--lime);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: 11px;
  font-weight: 900;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  font-size: clamp(52px, 7vw, 88px);
  line-height: .96;
  letter-spacing: -.065em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.02;
  letter-spacing: -.05em;
}

h3 {
  font-size: 23px;
  margin-bottom: 9px;
}

.hero-lede,
.section-heading p {
  max-width: 670px;
  color: var(--muted);
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 32px 0;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 19px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  background: rgba(21, 31, 50, .82);
  text-decoration: none;
  font-weight: 800;
  cursor: pointer;
}

.button:hover {
  transform: translateY(-1px);
  border-color: #526786;
}

.button-primary {
  border: 0;
  color: #07110b;
  background: linear-gradient(135deg, var(--lime), var(--mint));
}

.button-small {
  min-height: 40px;
  padding-inline: 15px;
  font-size: 13px;
}

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

.hero-proof span,
.mode-tag,
.pricing-label {
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 11px;
}

.phone-shell {
  max-width: 520px;
  justify-self: end;
  overflow: hidden;
  border: 1px solid #32405e;
  border-radius: 29px;
  background: #0b101a;
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
}

.phone-top {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 17px;
  border-bottom: 1px solid var(--line);
  background: #141d2e;
}

.phone-top strong,
.phone-top small {
  display: block;
}

.phone-top small {
  color: var(--muted);
}

.avatar-stack {
  display: flex;
}

.avatar-stack span {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  margin-left: -8px;
  border: 2px solid #141d2e;
  border-radius: 50%;
  background: linear-gradient(135deg, #33466f, #222f4b);
  font-size: 9px;
  font-weight: 900;
}

.avatar-stack span:first-child {
  margin-left: 0;
}

.chat {
  min-height: 470px;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 13px;
  background:
    radial-gradient(circle at 32% 13%, rgba(255, 155, 84, .10), transparent 20%),
    #0b101a;
}

.message {
  max-width: 85%;
  padding: 11px 14px;
  border-radius: 18px;
  background: #192338;
}

.message b {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 11px;
}

.message p {
  margin-bottom: 0;
}

.incoming {
  align-self: flex-start;
  border-bottom-left-radius: 5px;
}

.outgoing {
  align-self: flex-end;
  color: #08100a;
  background: linear-gradient(135deg, var(--lime), var(--mint));
  border-bottom-right-radius: 5px;
}

.accent-message {
  border: 1px solid rgba(185, 255, 102, .38);
  background: rgba(185, 255, 102, .09);
}

.composer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 9px;
  align-items: center;
  padding: 13px;
  border-top: 1px solid var(--line);
  background: #141d2e;
}

.composer span {
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: #0b101a;
}

.composer button {
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 50%;
  color: #07110b;
  background: var(--lime);
  font-size: 23px;
  font-weight: 900;
}

.section-heading {
  margin-bottom: 50px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 17px;
}

.feature-card,
.mode-card,
.pricing-card,
.beta-card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(21, 31, 50, .92), rgba(14, 21, 34, .92));
  box-shadow: var(--shadow);
}

.feature-card {
  min-height: 270px;
  padding: 26px;
  border-radius: 20px;
}

.feature-card p,
.mode-card p,
.pricing-card p,
.beta-card p {
  color: var(--muted);
}

.feature-number {
  margin-bottom: 64px;
  color: var(--lime);
  font-weight: 900;
}

.split-section {
  display: grid;
  grid-template-columns: .75fr 1.25fr;
  gap: 72px;
  align-items: start;
}

.sticky-heading {
  position: sticky;
  top: 120px;
}

.mode-list {
  display: grid;
  gap: 15px;
}

.mode-card {
  padding: 28px;
  border-radius: 20px;
}

.mode-tag {
  display: inline-block;
  margin-bottom: 26px;
  color: var(--lime);
}

.manifesto {
  padding-block: 70px;
}

.manifesto > div {
  padding: 60px;
  border-radius: 28px;
  background:
    radial-gradient(circle at 85% 20%, rgba(185, 255, 102, .14), transparent 28%),
    linear-gradient(135deg, #151e31, #0d141f);
  border: 1px solid var(--line);
}

blockquote {
  max-width: 920px;
  margin: 20px 0 0;
  font-size: clamp(31px, 5vw, 57px);
  line-height: 1.08;
  letter-spacing: -.045em;
}

.pricing-section {
  display: grid;
  grid-template-columns: 1fr 480px;
  gap: 65px;
  align-items: center;
}

.pricing-card {
  padding: 31px;
  border-radius: 24px;
}

.price {
  margin: 13px 0 10px;
  display: flex;
  align-items: end;
  gap: 8px;
}

.price strong {
  font-size: 62px;
  line-height: 1;
  letter-spacing: -.06em;
}

.price span {
  margin-bottom: 7px;
  color: var(--muted);
}

.pricing-card ul {
  margin: 25px 0;
  padding: 0;
  display: grid;
  gap: 12px;
  list-style: none;
}

.pricing-card li::before {
  content: "✓";
  margin-right: 10px;
  color: var(--lime);
  font-weight: 900;
}

.full-button {
  width: 100%;
}

.pricing-card small {
  display: block;
  margin-top: 17px;
  color: var(--muted);
}

.beta-card {
  display: grid;
  grid-template-columns: 1fr .95fr;
  gap: 55px;
  align-items: center;
  padding: 50px;
  border-radius: 28px;
}

.waitlist-form {
  display: grid;
  gap: 14px;
}

.waitlist-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

.waitlist-form input,
.waitlist-form select {
  min-height: 48px;
  width: 100%;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 11px;
  color: var(--text);
  background: #0a101a;
}

.form-message {
  min-height: 22px;
  color: var(--lime);
  font-size: 13px;
}

footer {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 40px 0 55px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 20px;
  align-items: center;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

footer p {
  margin: 0;
}

.footer-note {
  text-align: right;
}

@media (max-width: 900px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  nav {
    display: none;
  }

  .hero,
  .split-section,
  .pricing-section,
  .beta-card {
    grid-template-columns: 1fr;
  }

  .phone-shell {
    justify-self: center;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .sticky-heading {
    position: static;
  }
}

@media (max-width: 600px) {
  .site-header {
    padding-inline: 16px;
  }

  .site-header .button-small {
    display: none;
  }

  .section {
    width: min(100% - 24px, 1180px);
    padding: 72px 0;
  }

  .hero {
    min-height: auto;
    padding-top: 48px;
    gap: 42px;
  }

  h1 {
    font-size: 53px;
  }

  .phone-shell {
    width: 100%;
    transform: none;
  }

  .chat {
    min-height: 430px;
  }

  .manifesto > div,
  .beta-card {
    padding: 29px;
  }

  footer {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .footer-note {
    text-align: left;
  }
}


/* Constitutional governance section */
.governance-section {
  display: grid;
  gap: 34px;
}

.governance-intro {
  max-width: 940px;
}

.governance-intro p {
  max-width: 850px;
  color: var(--muted);
  font-size: 18px;
}

.powers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.power-card {
  min-height: 245px;
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: 19px;
  background: linear-gradient(180deg, rgba(21, 31, 50, .94), rgba(12, 18, 30, .94));
}

.power-card span {
  display: inline-block;
  margin-bottom: 60px;
  color: var(--lime);
  font-size: 12px;
  font-weight: 900;
}

.power-card p {
  color: var(--muted);
}

.governance-callout {
  padding: 27px 31px;
  border: 1px solid rgba(185, 255, 102, .35);
  border-radius: 19px;
  background:
    linear-gradient(135deg, rgba(185, 255, 102, .10), rgba(126, 242, 201, .035));
}

.governance-callout p {
  max-width: 940px;
  margin: 0;
  font-size: clamp(22px, 3vw, 36px);
  line-height: 1.18;
  letter-spacing: -.025em;
}

.governance-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.governance-details > div {
  padding: 27px;
  border: 1px solid var(--line);
  border-radius: 19px;
  background: rgba(15, 23, 38, .76);
}

.governance-details p {
  color: var(--muted);
  margin-bottom: 0;
}

/* Open model ecosystem section */
.open-ecosystem-section {
  border-top: 1px solid rgba(40, 54, 80, .65);
  border-bottom: 1px solid rgba(40, 54, 80, .65);
}

.ecosystem-layout {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 55px;
  align-items: center;
}

.provider-cloud {
  min-height: 430px;
  display: flex;
  flex-wrap: wrap;
  align-content: center;
  justify-content: center;
  gap: 11px;
  padding: 38px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    radial-gradient(circle at 50% 45%, rgba(185, 255, 102, .12), transparent 38%),
    linear-gradient(180deg, rgba(21, 31, 50, .94), rgba(11, 17, 28, .94));
  box-shadow: var(--shadow);
}

.provider-cloud span {
  padding: 11px 15px;
  border: 1px solid #394967;
  border-radius: 999px;
  background: rgba(10, 16, 26, .82);
  color: var(--text);
  font-size: 13px;
}

.provider-cloud span:nth-child(3n + 1) {
  color: var(--lime);
}

.provider-cloud span:nth-child(3n + 2) {
  color: var(--mint);
}

.provider-cloud span:nth-child(3n) {
  color: var(--blue);
}

.ecosystem-copy {
  display: grid;
  gap: 14px;
}

.ecosystem-copy article {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(14, 21, 34, .78);
}

.ecosystem-copy p {
  margin-bottom: 0;
  color: var(--muted);
}

.architecture-strip {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  align-items: center;
  justify-content: center;
  padding: 23px;
  border-radius: 18px;
  background: #0c121e;
  border: 1px solid var(--line);
}

.architecture-strip span,
.architecture-strip strong {
  padding: 8px 12px;
  border-radius: 999px;
  background: #172136;
}

.architecture-strip b {
  color: var(--lime);
}

.architecture-strip strong {
  color: #07110b;
  background: linear-gradient(135deg, var(--lime), var(--mint));
}

@media (max-width: 900px) {
  .powers-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .governance-details,
  .ecosystem-layout {
    grid-template-columns: 1fr;
  }

  .provider-cloud {
    min-height: 300px;
  }
}

@media (max-width: 600px) {
  .powers-grid {
    grid-template-columns: 1fr;
  }

  .power-card {
    min-height: auto;
  }

  .power-card span {
    margin-bottom: 28px;
  }

  .governance-callout {
    padding: 23px;
  }

  .provider-cloud {
    padding: 25px;
  }
}