:root {
  color-scheme: dark;
  --night: #0b111b;
  --panel: #141d2a;
  --panel-light: #1b2737;
  --white: #eaf1f7;
  --cyan: #64e4ff;
  --amber: #ffb36b;
  --muted: #8393a8;
  --line: rgba(172, 196, 218, 0.18);
  --display: 'Space Grotesk', 'Arial', sans-serif;
  --mono: 'IBM Plex Mono', 'Consolas', monospace;
  --content: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 94px; }
body {
  margin: 0;
  background: var(--night);
  color: var(--white);
  font-family: var(--display);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--cyan); outline-offset: 5px; }
.skip-link {
  position: absolute;
  z-index: 20;
  top: 10px;
  left: 10px;
  padding: 12px 16px;
  transform: translateY(-150%);
  background: var(--cyan);
  color: var(--night);
  font-weight: 700;
}
.skip-link:focus { transform: translateY(0); }
.site-header {
  width: min(var(--content), calc(100% - 64px));
  min-height: 88px;
  margin: auto;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--line);
  gap: 54px;
}
.wordmark {
  color: var(--white);
  font-weight: 700;
  font-size: 27px;
  letter-spacing: -1.9px;
  text-decoration: none;
}
.wordmark-dot { color: var(--cyan); }
.main-nav, .header-actions { display: flex; align-items: center; }
.main-nav { gap: 32px; }
.main-nav a, .login-link, .site-footer > a:not(.wordmark) {
  color: #bdc8d4;
  font-size: 14px;
  text-decoration: none;
  transition: color 160ms ease;
}
.main-nav a:hover, .login-link:hover, .site-footer > a:not(.wordmark):hover { color: var(--cyan); }
.header-actions { gap: 25px; margin-left: auto; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  min-height: 54px;
  padding: 0 21px;
  background: var(--cyan);
  color: #09121c;
  border: 1px solid var(--cyan);
  text-decoration: none;
  font-weight: 700;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}
.button:hover { transform: translateY(-2px); background: #a2f1ff; }
.button-small { min-height: 42px; padding: 0 16px; font-size: 14px; }

.hero {
  position: relative;
  width: min(var(--content), calc(100% - 64px));
  min-height: 570px;
  margin: auto;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.hero::before {
  position: absolute;
  content: '';
  top: 0;
  left: 48%;
  bottom: 0;
  width: 1px;
  background: linear-gradient(transparent, var(--line) 20%, var(--line) 80%, transparent);
}
.hero-copy { position: relative; z-index: 2; padding: 62px 0 84px; }
.availability, .section-kicker {
  margin: 0 0 20px;
  color: var(--cyan);
  font: 500 12px/1.4 var(--mono);
  letter-spacing: .01em;
}
.availability { display: flex; align-items: center; gap: 10px; color: #b2c2d1; }
.signal-dot, .console-status i {
  width: 7px;
  height: 7px;
  display: inline-block;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 12px rgba(255, 179, 107, .65);
}
h1, h2, h3, h4, p { margin-top: 0; }
h1 {
  margin-bottom: 22px;
  font-size: clamp(46px, 6.3vw, 76px);
  line-height: .99;
  letter-spacing: -.075em;
  font-weight: 600;
}
h1 span { color: var(--cyan); white-space: nowrap; }
.hero-description { max-width: 430px; margin-bottom: 29px; color: #a8b6c6; font-size: 17px; line-height: 1.65; }
.hero-actions { display: flex; align-items: center; gap: 25px; }
.text-link { color: var(--white); font-size: 14px; text-decoration: none; }
.text-link span { color: var(--cyan); margin-left: 6px; }
.text-link:hover { color: var(--cyan); }
.claim-note { max-width: 400px; margin: 25px 0 0; color: var(--muted); font-size: 11px; line-height: 1.5; }
.hero-art {
  position: relative;
  align-self: stretch;
  min-height: 475px;
  display: grid;
  place-items: center;
  isolation: isolate;
  background-image: radial-gradient(rgba(130, 158, 189, .18) .8px, transparent .8px);
  background-size: 21px 21px;
  background-position: center;
}
.hero-art::before {
  position: absolute;
  z-index: -1;
  content: '';
  width: min(420px, 90%);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 93, 121, .31) 0, rgba(20, 29, 42, .12) 54%, transparent 70%);
}
.rocket { position: relative; z-index: 1; width: min(365px, 82%); height: 390px; object-fit: contain; filter: drop-shadow(0 0 28px rgba(100, 228, 255, .13)); }
.orbit { position: absolute; z-index: -1; width: 410px; height: 160px; border: 1px solid rgba(100, 228, 255, .3); border-radius: 50%; transform: rotate(-32deg); }
.orbit-two { width: 480px; height: 220px; border-color: rgba(255, 179, 107, .17); transform: rotate(55deg); }
.art-coordinate { position: absolute; color: #9eafc2; font: 10px var(--mono); letter-spacing: .08em; }
.coordinate-top { top: 73px; right: 25px; }
.coordinate-bottom { left: 18px; bottom: 63px; display: flex; align-items: center; gap: 9px; color: var(--cyan); }
.coordinate-bottom i { width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); }
.star { position: absolute; color: var(--amber); }
.star-one { top: 24%; left: 18%; font-size: 15px; }
.star-two { right: 13%; bottom: 24%; color: var(--cyan); font-size: 17px; }
.hero-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 15px;
  color: var(--muted);
  font: 9px var(--mono);
  letter-spacing: .045em;
}
.bottom-line { flex: 1; height: 1px; background: var(--line); }

.section-wrap { width: min(var(--content), calc(100% - 64px)); margin-inline: auto; }
.model-section { padding-top: 108px; padding-bottom: 108px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 35px; margin-bottom: 38px; }
.section-kicker { margin-bottom: 13px; }
h2 { margin-bottom: 0; font-size: clamp(32px, 4vw, 45px); line-height: 1.08; letter-spacing: -.055em; font-weight: 500; }
.section-intro { max-width: 385px; margin: 0 0 3px; color: #9fadc0; font-size: 14px; line-height: 1.65; }
.model-console { border: 1px solid var(--line); background: #0e1723; }
.model-family { padding: 27px 30px 28px; }
.family-claude { border-bottom: 1px solid var(--line); }
.family-heading { display: flex; align-items: center; gap: 13px; margin-bottom: 24px; }
.provider-mark {
  width: 36px;
  height: 36px;
  display: block;
  flex: 0 0 36px;
  object-fit: contain;
  border: 1px solid rgba(100, 228, 255, .32);
}
.gpt-mark {
  padding: 6px;
  border-color: rgba(255, 179, 107, .35);
  background: #f7f9fb;
}
.family-heading h3 { margin: 0 0 2px; font-size: 18px; font-weight: 600; }
.family-heading p { margin: 0; color: var(--muted); font-size: 12px; }
.family-count { margin-left: auto; color: var(--muted); font: 11px var(--mono); }
.model-groups { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; padding-left: 49px; }
.model-group h4 { margin-bottom: 12px; color: #8fa2b8; font: 500 11px var(--mono); }
.model-group ul { display: flex; flex-wrap: wrap; gap: 7px; margin: 0; padding: 0; list-style: none; }
.model-group li { padding: 7px 9px; border: 1px solid rgba(172, 196, 218, .12); color: #d5dfe9; font-size: 11px; line-height: 1.25; }
.console-status { min-height: 48px; padding: 0 30px; display: flex; align-items: center; gap: 10px; border-top: 1px solid var(--line); color: var(--muted); font: 10px var(--mono); }
.console-status > span:first-child { display: flex; align-items: center; gap: 8px; color: var(--white); }
.console-status i { width: 5px; height: 5px; background: var(--cyan); box-shadow: 0 0 8px rgba(100,228,255,.5); }
.console-status a { margin-left: auto; color: var(--cyan); text-decoration: none; }

.pricing-section { padding: 100px 0 87px; background: #0e1723; border-block: 1px solid var(--line); }
.pricing-heading { margin-bottom: 37px; }
.pricing-table { border-top: 1px solid var(--line); }
.plan-row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(140px, 1.08fr) minmax(120px, .75fr) minmax(150px, 1fr) minmax(110px, .7fr) 90px;
  align-items: center;
  gap: 20px;
  min-height: 110px;
  padding: 19px 19px;
  border-bottom: 1px solid var(--line);
  background: transparent;
  transition: background 160ms ease;
}
.plan-row:hover { background: rgba(128, 159, 193, .045); }
.plan-featured { background: rgba(100, 228, 255, .055); border-left: 2px solid var(--cyan); }
.plan-featured:hover { background: rgba(100, 228, 255, .09); }
.plan-name { position: relative; }
.plan-name h3 { margin: 0 0 5px; font-size: 20px; letter-spacing: -.04em; }
.plan-name p { margin: 0; color: var(--muted); font-size: 12px; }
.popular-label { display: inline-block; margin-bottom: 7px; color: var(--cyan); font: 9px var(--mono); }
.plan-featured .plan-name h3 { color: var(--cyan); }
.plan-price strong, .plan-value strong { display: block; font-size: 19px; font-weight: 600; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.plan-price span, .plan-value span { display: block; margin-top: 4px; color: var(--muted); font-size: 11px; }
.plan-value strong { font-family: var(--mono); font-size: 16px; }
.plan-access details { position: relative; }
.plan-access summary { width: fit-content; color: #d6e1ed; cursor: pointer; font-size: 12px; list-style-position: inside; }
.plan-access summary::marker { color: var(--cyan); }
.plan-access details[open] summary { margin-bottom: 8px; color: var(--cyan); }
.plan-access ul { position: relative; margin: 0; padding: 0; list-style: none; color: #b5c3d2; font-size: 11px; line-height: 1.7; }
.catalog-link { color: #d6e1ed; font-size: 12px; text-decoration-color: rgba(100, 228, 255, .45); text-underline-offset: 4px; }
.catalog-link span { color: var(--cyan); }
.catalog-link:hover { color: var(--cyan); }
.plan-cta { justify-self: end; min-width: 78px; padding: 10px 12px; border: 1px solid var(--line); color: var(--white); text-align: center; font-size: 12px; text-decoration: none; transition: border-color 160ms ease, color 160ms ease; }
.plan-cta:hover { border-color: var(--cyan); color: var(--cyan); }
.plan-cta span { margin-left: 4px; color: var(--cyan); }
.pricing-footnote { margin: 19px 0 0; color: var(--muted); font-size: 11px; line-height: 1.6; }

.closing-cta { min-height: 220px; display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.closing-cta .section-kicker { margin-bottom: 12px; }
.closing-cta h2 { font-size: clamp(35px, 4vw, 47px); }
.site-footer {
  width: min(var(--content), calc(100% - 64px));
  min-height: 79px;
  margin: auto;
  display: flex;
  align-items: center;
  gap: 24px;
  border-top: 1px solid var(--line);
}
.site-footer .wordmark { font-size: 21px; }
.site-footer p { margin: 0; color: var(--muted); font-size: 12px; }
.site-footer > span { margin-left: auto; color: var(--muted); font: 10px var(--mono); }

.login-page { min-height: 100svh; display: grid; place-items: center; padding: 28px; background: var(--night); }
.login-panel { width: min(550px, 100%); padding: clamp(30px, 7vw, 64px); border: 1px solid var(--line); background: #0e1723; text-align: center; }
.login-panel .wordmark { display: inline-block; margin-bottom: 48px; }
.login-panel .section-kicker { margin-bottom: 14px; }
.login-panel h1 { margin-bottom: 17px; font-size: clamp(39px, 8vw, 58px); }
.login-panel > p:not(.section-kicker) { margin: 0 auto 28px; max-width: 330px; color: #a8b6c6; line-height: 1.7; }
.login-panel .button { margin-bottom: 25px; }
.login-back { display: block; color: var(--muted); font-size: 13px; text-decoration: none; }
.login-back:hover { color: var(--cyan); }

@media (max-width: 900px) {
  .site-header, .hero, .section-wrap, .site-footer { width: min(100% - 44px, var(--content)); }
  .hero { min-height: 510px; grid-template-columns: 1fr .85fr; }
  h1 { font-size: clamp(44px, 7.5vw, 65px); }
  .rocket { height: 330px; }
  .orbit { width: 330px; height: 140px; }
  .orbit-two { width: 390px; }
  .plan-row { grid-template-columns: minmax(110px, .9fr) minmax(100px, .7fr) minmax(125px, .9fr) minmax(95px, .7fr) 76px; gap: 13px; padding-inline: 12px; }
  .plan-name h3 { font-size: 18px; }
  .plan-value span { max-width: 100px; line-height: 1.4; }
}
@media (max-width: 650px) {
  html { scroll-padding-top: 24px; }
  .site-header, .hero, .section-wrap, .site-footer { width: calc(100% - 36px); }
  .site-header { min-height: 70px; gap: 18px; }
  .wordmark { font-size: 24px; }
  .main-nav { gap: 15px; }
  .main-nav a, .login-link { font-size: 12px; }
  .header-actions { gap: 13px; }
  .button-small { min-height: 37px; padding: 0 10px; font-size: 11px; gap: 7px; }
  .hero { min-height: unset; grid-template-columns: 1fr; }
  .hero::before { display: none; }
  .hero-copy { padding: 65px 0 20px; }
  h1 { max-width: 520px; font-size: clamp(47px, 13vw, 69px); }
  .hero-description { max-width: 360px; font-size: 15px; }
  .hero-art { min-height: 340px; margin: 0 -18px; }
  .rocket { width: min(270px, 68%); height: 300px; }
  .orbit { width: 300px; height: 112px; }
  .orbit-two { width: 370px; height: 170px; }
  .coordinate-top { top: 31px; right: 24px; }
  .coordinate-bottom { left: 22px; bottom: 34px; }
  .hero-bottom { position: relative; min-height: 43px; gap: 9px; font-size: 8px; }
  .hero-bottom > span:first-child { display: none; }
  .section-heading { display: block; margin-bottom: 28px; }
  .section-intro { margin-top: 15px; }
  .model-section { padding-block: 76px; }
  .model-family { padding: 22px 16px; }
  .model-groups { grid-template-columns: 1fr; gap: 20px; padding-left: 0; }
  .family-heading { margin-bottom: 22px; }
  .family-count { font-size: 9px; }
  .console-status { flex-wrap: wrap; padding: 12px 16px; gap: 10px 16px; font-size: 9px; }
  .console-status a { margin-left: auto; }
  .pricing-section { padding: 73px 0 62px; }
  .pricing-heading { margin-bottom: 27px; }
  .plan-row { grid-template-columns: 1fr 1fr; gap: 18px 10px; padding: 19px 15px; }
  .plan-name { grid-column: 1 / -1; }
  .plan-price, .plan-value { align-self: start; }
  .plan-value span { max-width: none; }
  .plan-access { grid-column: 1 / 2; }
  .plan-access details[open] ul { max-width: calc(100vw - 90px); }
  .plan-cta { grid-column: 2; grid-row: 3; align-self: end; }
  .plan-featured { border-left-width: 2px; }
  .closing-cta { min-height: unset; padding-block: 60px; align-items: flex-start; flex-direction: column; }
  .site-footer { min-height: 105px; flex-wrap: wrap; padding-block: 20px; gap: 10px 16px; }
  .site-footer p { flex: 1; }
  .site-footer > span { width: 100%; margin-left: 0; }
}
@media (max-width: 390px) {
  .site-header { gap: 12px; }
  .main-nav { gap: 10px; }
  .main-nav a, .login-link { font-size: 11px; }
  .header-actions { gap: 8px; }
  .button-small { padding: 0 8px; font-size: 10px; }
  .hero-actions { gap: 18px; }
  .hero-actions .button { padding-inline: 14px; font-size: 13px; }
  .family-heading { gap: 9px; }
  .family-heading p { font-size: 11px; }
  .family-count { max-width: 56px; text-align: right; }
  .model-group li { font-size: 10px; }
}
@media (prefers-reduced-motion: no-preference) {
  .homepage .site-header {
    animation: aexo-home-enter 650ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }

  .homepage .hero-copy > * {
    animation: aexo-home-enter 720ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }

  .homepage .hero-copy > :nth-child(1) { animation-delay: 80ms; }
  .homepage .hero-copy > :nth-child(2) { animation-delay: 150ms; }
  .homepage .hero-copy > :nth-child(3) { animation-delay: 220ms; }
  .homepage .hero-copy > :nth-child(4) { animation-delay: 290ms; }
  .homepage .hero-copy > :nth-child(5) { animation-delay: 360ms; }

  .homepage .hero-art {
    --home-float: 11px;
    animation: aexo-home-art-enter 900ms cubic-bezier(0.16, 1, 0.3, 1) 120ms both;
  }

  .homepage .hero-art::before {
    animation: aexo-home-reactor 7s ease-in-out 1s infinite;
  }

  .homepage .rocket {
    animation: aexo-home-rocket 6s ease-in-out 1s infinite;
  }

  .homepage .orbit-one {
    animation: aexo-home-orbit 42s linear infinite;
  }

  .homepage .orbit-two {
    animation: aexo-home-orbit-reverse 56s linear infinite;
  }

  .homepage .star-one { animation: aexo-home-twinkle 3.8s ease-in-out 1.2s infinite; }
  .homepage .star-two { animation: aexo-home-twinkle 4.6s ease-in-out 2s infinite; }
  .homepage .signal-dot { animation: aexo-home-signal 2.8s ease-in-out infinite; }
  .homepage .coordinate-bottom i { animation: aexo-home-signal 2.8s ease-in-out 700ms infinite; }
  .homepage .hero-bottom { animation: aexo-home-enter 700ms cubic-bezier(0.16, 1, 0.3, 1) 420ms both; }

  .homepage .hero-bottom .bottom-line {
    position: relative;
    overflow: hidden;
  }

  .homepage .hero-bottom .bottom-line::after {
    position: absolute;
    inset: 0;
    content: '';
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    transform: translateX(-100%);
    animation: aexo-home-scan 4.8s ease-in-out 1.5s infinite;
  }

  .homepage.motion-ready .aexo-reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 650ms ease, transform 800ms cubic-bezier(0.16, 1, 0.3, 1);
  }

  .homepage.motion-ready .aexo-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  .homepage .plan-row.aexo-reveal:nth-child(2) { transition-delay: 70ms; }
  .homepage .plan-row.aexo-reveal:nth-child(3) { transition-delay: 140ms; }
  .homepage .plan-row.aexo-reveal:nth-child(4) { transition-delay: 210ms; }
  .homepage .plan-row.aexo-reveal:nth-child(5) { transition-delay: 280ms; }

  .homepage .plan-cta span {
    display: inline-block;
    transition: transform 180ms ease;
  }

  .homepage .plan-cta:hover span,
  .homepage .plan-cta:focus-visible span {
    transform: translate(2px, -2px);
  }

  @keyframes aexo-home-enter {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: translateY(0); }
  }

  @keyframes aexo-home-art-enter {
    from { opacity: 0; transform: scale(0.94); }
    to { opacity: 1; transform: scale(1); }
  }

  @keyframes aexo-home-rocket {
    0%, 100% { transform: translate3d(0, 0, 0) rotate(-1deg); }
    50% { transform: translate3d(0, calc(var(--home-float) * -1), 0) rotate(1deg); }
  }

  @keyframes aexo-home-reactor {
    0%, 100% { opacity: 0.72; transform: scale(0.96); }
    50% { opacity: 1; transform: scale(1.04); }
  }

  @keyframes aexo-home-orbit {
    from { transform: rotate(-32deg); }
    to { transform: rotate(328deg); }
  }

  @keyframes aexo-home-orbit-reverse {
    from { transform: rotate(55deg); }
    to { transform: rotate(-305deg); }
  }

  @keyframes aexo-home-twinkle {
    0%, 100% { opacity: 0.65; transform: scale(0.86) rotate(-8deg); }
    50% { opacity: 1; transform: scale(1.16) rotate(8deg); }
  }

  @keyframes aexo-home-signal {
    0%, 100% { opacity: 0.8; transform: scale(1); }
    50% { opacity: 0.45; transform: scale(0.78); }
  }

  @keyframes aexo-home-scan {
    0%, 18% { transform: translateX(-100%); }
    62%, 100% { transform: translateX(100%); }
  }
}

@media (max-width: 650px) and (prefers-reduced-motion: no-preference) {
  .homepage .hero-art { --home-float: 7px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

/* Language Switcher */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  background: rgba(14, 23, 35, 0.85);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 3px 5px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  backdrop-filter: blur(8px);
  user-select: none;
}
.lang-switch .lang-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 3px 8px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.1;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.lang-switch .lang-btn:hover {
  color: var(--white);
}
.lang-switch .lang-btn.active {
  background: rgba(100, 228, 255, 0.18);
  color: var(--cyan);
  box-shadow: 0 0 10px rgba(100, 228, 255, 0.2);
}
.lang-switch .lang-divider {
  color: rgba(161, 195, 224, 0.25);
  font-size: 10px;
  margin: 0 1px;
}

