:root {
  color-scheme: light dark;
  --ink: #17191d;
  --paper: #f2efe8;
  --paper-soft: #faf8f3;
  --night: #090d18;
  --night-soft: #10172a;
  --cyan: #21e6f3;
  --blue: #1e66ff;
  --violet: #8a4dff;
  --magenta: #d93cff;
  --line: rgba(255, 255, 255, .14);
  --sans: Inter, "Segoe UI", Arial, sans-serif;
  --serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--night);
  text-rendering: optimizeLegibility;
}

a { color: inherit; }
img { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  transform: translateY(-160%);
  border-radius: 999px;
  background: #fff;
  color: #111;
}

.skip-link:focus { transform: translateY(0); }

.landing-page {
  min-height: 100svh;
  overflow: hidden;
}

.landing-header,
.landing-footer {
  position: fixed;
  z-index: 30;
  right: 0;
  left: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  color: #fff;
  mix-blend-mode: difference;
  pointer-events: none;
}

.landing-header {
  top: 0;
  padding: 24px clamp(20px, 3vw, 48px);
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.landing-header p { margin: 0; opacity: .7; }

.wordmark,
.header-contact,
.landing-footer a { pointer-events: auto; text-decoration: none; }

.wordmark { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.wordmark-dot { width: 10px; height: 10px; border-radius: 50%; background: #fff; }
.header-contact { justify-self: end; border-bottom: 1px solid currentColor; padding-bottom: 4px; }

.direction-split {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100svh;
  transition: grid-template-columns .8s cubic-bezier(.22, 1, .36, 1);
}

.direction-split:has(.direction-3d:hover) { grid-template-columns: 1.06fr .94fr; }
.direction-split:has(.direction-code:hover) { grid-template-columns: .94fr 1.06fr; }

.direction {
  position: relative;
  isolation: isolate;
  min-width: 0;
  overflow: hidden;
}

.direction-3d {
  display: flex;
  align-items: flex-end;
  background:
    radial-gradient(circle at calc(50% + var(--mx, 0px)) calc(42% + var(--my, 0px)), rgba(255,255,255,.92), transparent 35%),
    linear-gradient(145deg, #fbfaf6 0%, var(--paper) 62%, #ded7cb 100%);
}

.direction-code {
  display: flex;
  align-items: flex-end;
  color: #fff;
  background:
    radial-gradient(circle at calc(50% + var(--mx, 0px)) calc(38% + var(--my, 0px)), rgba(37,88,210,.28), transparent 32%),
    linear-gradient(145deg, #111a31 0%, #090d18 58%, #070910 100%);
}

.direction::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.36), transparent 46%);
  opacity: .25;
  pointer-events: none;
}

.direction-3d::after { background: linear-gradient(to top, rgba(242,239,232,.96) 8%, transparent 56%); opacity: 1; }

.direction-copy {
  position: relative;
  z-index: 8;
  width: min(620px, 86%);
  margin: 0 auto;
  padding-bottom: clamp(82px, 10vh, 120px);
}

.direction-copy-light { color: var(--ink); }
.direction-copy-dark { color: #f6f9ff; }

.eyebrow {
  margin: 0 0 16px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  line-height: 1.5;
  text-transform: uppercase;
  opacity: .64;
}

.direction h1,
.direction h2 {
  margin: 0;
  max-width: 720px;
  font-size: clamp(48px, 5.4vw, 92px);
  font-weight: 600;
  letter-spacing: -.055em;
  line-height: .92;
}

.direction h1 { font-family: var(--serif); font-weight: 500; }
.direction h2 { text-shadow: 0 0 44px rgba(36, 112, 255, .2); }

.direction-lead {
  max-width: 540px;
  margin: 24px 0 28px;
  font-size: clamp(15px, 1.25vw, 19px);
  line-height: 1.6;
  opacity: .72;
}

.direction-link {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 38px;
  min-width: 245px;
  padding: 15px 18px;
  border: 1px solid currentColor;
  text-decoration: none;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: transform .25s ease, background .25s ease, box-shadow .25s ease;
}

.direction-link:hover,
.direction-link:focus-visible { transform: translateY(-3px); }
.direction-link-dark:hover,
.direction-link-dark:focus-visible { background: var(--ink); color: #fff; }
.direction-link-glow { border-color: rgba(67, 224, 255, .54); background: rgba(8,16,34,.48); }
.direction-link-glow:hover,
.direction-link-glow:focus-visible { background: rgba(30,102,255,.18); box-shadow: 0 0 28px rgba(33,230,243,.18); }

.architecture-grid,
.tech-grid {
  position: absolute;
  z-index: -3;
  inset: 0;
  opacity: .32;
  pointer-events: none;
}

.architecture-grid {
  background-image:
    linear-gradient(rgba(30,31,34,.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,31,34,.1) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 72%);
}

.tech-grid {
  background-image:
    linear-gradient(rgba(44,106,255,.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(44,106,255,.14) 1px, transparent 1px);
  background-size: 44px 44px;
  transform: perspective(500px) rotateX(58deg) scale(1.8) translateY(-5%);
  transform-origin: center top;
  mask-image: linear-gradient(to bottom, #000 20%, transparent 72%);
}

.render-stack {
  position: absolute;
  z-index: -1;
  top: 13%;
  left: 50%;
  width: min(70%, 540px);
  aspect-ratio: 1 / .72;
  transform: translateX(-50%) translate(var(--mx, 0px), var(--my, 0px));
  transition: transform .2s linear;
}

.render-card {
  position: absolute;
  overflow: hidden;
  margin: 0;
  border: 8px solid rgba(255,255,255,.9);
  background: #fff;
  box-shadow: 0 28px 70px rgba(44,39,31,.18);
  transition: transform .7s cubic-bezier(.22, 1, .36, 1);
}

.render-card img { width: 100%; height: 100%; object-fit: cover; }
.render-card-main { inset: 8% 12% 0; transform: rotate(-1.5deg); }
.render-card-top { top: 0; right: 0; width: 39%; height: 43%; transform: translate(8%, -8%) rotate(5deg); }
.render-card-bottom { bottom: 0; left: 0; width: 36%; height: 39%; transform: translate(-8%, 13%) rotate(-5deg); }
.direction-3d:hover .render-card-main { transform: translateY(-8px) rotate(0); }
.direction-3d:hover .render-card-top { transform: translate(13%, -17%) rotate(7deg); }
.direction-3d:hover .render-card-bottom { transform: translate(-14%, 19%) rotate(-7deg); }

.code-orbit {
  position: absolute;
  z-index: -1;
  top: 13%;
  left: 50%;
  width: min(61%, 440px);
  aspect-ratio: 1;
  transform: translateX(-50%) translate(var(--mx, 0px), var(--my, 0px));
  transition: transform .2s linear;
}

.code-orbit::before {
  content: "";
  position: absolute;
  inset: 18%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(48,95,255,.32), rgba(17,22,42,.04) 64%, transparent 65%);
  filter: blur(9px);
}

.brand-core {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  width: 42%;
  padding: 8%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(96,234,255,.34);
  border-radius: 30%;
  background: linear-gradient(145deg, rgba(24,41,82,.94), rgba(6,10,21,.92));
  box-shadow: 0 0 55px rgba(30,102,255,.28), inset 0 0 28px rgba(255,255,255,.05);
}

.orbit {
  position: absolute;
  inset: 10%;
  border: 1px solid rgba(57,225,255,.36);
  border-radius: 50%;
  animation: orbit-spin 18s linear infinite;
}

.orbit::after {
  content: "";
  position: absolute;
  top: 48%;
  left: -5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 18px var(--cyan);
}

.orbit-two { inset: 22% 3%; transform: rotate(63deg); animation-duration: 24s; animation-direction: reverse; border-color: rgba(205,61,255,.3); }
.orbit-two::after { background: var(--magenta); box-shadow: 0 0 18px var(--magenta); }

.tech-node {
  position: absolute;
  z-index: 4;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 18px;
  background: rgba(11,18,36,.88);
  color: rgba(230,246,255,.88);
  box-shadow: 0 12px 32px rgba(0,0,0,.3);
  font: 700 10px/1 var(--sans);
  letter-spacing: .12em;
}

.node-web { top: 9%; left: 7%; }
.node-app { top: 18%; right: 3%; }
.node-api { right: 12%; bottom: 6%; }

.signal-lines { position: absolute; z-index: -2; inset: 0; overflow: hidden; opacity: .6; }
.signal-lines i {
  position: absolute;
  top: calc(15% + var(--i, 0) * 13%);
  left: -30%;
  width: 26%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  animation: signal 7s linear infinite;
}
.signal-lines i:nth-child(2) { --i: 1; animation-delay: -4s; }
.signal-lines i:nth-child(3) { --i: 2; animation-delay: -1.5s; background: linear-gradient(90deg, transparent, var(--magenta), transparent); }
.signal-lines i:nth-child(4) { --i: 3; animation-delay: -5.5s; }
.signal-lines i:nth-child(5) { --i: 4; animation-delay: -3s; }

.split-marker {
  position: absolute;
  z-index: 20;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: linear-gradient(transparent, rgba(255,255,255,.7) 18%, rgba(255,255,255,.2) 78%, transparent);
  pointer-events: none;
}

.split-marker span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 40px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(255,255,255,.45);
  border-radius: 999px;
  background: rgba(12,15,23,.22);
  backdrop-filter: blur(10px);
}

.mobile-direction-pick { display: none; }

.landing-footer {
  bottom: 0;
  padding: 18px clamp(20px, 3vw, 48px) 24px;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.landing-footer .footer-hint { justify-self: center; opacity: .5; }
.landing-footer a { justify-self: end; }

@keyframes orbit-spin { to { rotate: 360deg; } }
@keyframes signal { from { transform: translateX(0); } to { transform: translateX(520%); } }

@media (max-width: 900px) {
  .landing-page { overflow: hidden; }
  .landing-header { position: fixed; grid-template-columns: 1fr auto; }
  .landing-header p { display: none; }
  .direction-split,
  .direction-split:has(.direction-3d:hover),
  .direction-split:has(.direction-code:hover) {
    display: grid;
    grid-template-columns: 1fr 1fr;
    height: 100svh;
    min-height: 100svh;
    transition: grid-template-columns .72s cubic-bezier(.22, 1, .36, 1);
  }
  .direction-split.direction-split[data-active="3d"] { grid-template-columns: calc(100% - 48px) 48px; }
  .direction-split.direction-split[data-active="code"] { grid-template-columns: 48px calc(100% - 48px); }
  .direction {
    min-height: 100svh;
    cursor: pointer;
    transition: filter .5s ease;
  }
  .direction-copy {
    width: calc(100% - 48px);
    padding-bottom: 74px;
    transition: opacity .32s ease, transform .55s cubic-bezier(.22, 1, .36, 1), padding-bottom .65s cubic-bezier(.22, 1, .36, 1);
  }
  .direction h1, .direction h2 { font-size: clamp(52px, 12vw, 82px); }
  .direction-lead { max-width: 560px; }
  .render-stack { top: 15%; width: min(76%, 520px); }
  .code-orbit { top: 13%; width: min(68%, 440px); }
  .render-stack,
  .code-orbit { transition: top .65s cubic-bezier(.22, 1, .36, 1), width .65s cubic-bezier(.22, 1, .36, 1), transform .55s ease, opacity .35s ease; }

  .direction-split:not([data-active]) .direction-copy {
    width: calc(100% - 24px);
    padding-bottom: clamp(180px, 32svh, 240px);
  }
  .direction-split:not([data-active]) .direction-copy .eyebrow,
  .direction-split:not([data-active]) .direction-copy .direction-lead,
  .direction-split:not([data-active]) .direction-copy .direction-link { display: none; }
  .direction-split:not([data-active]) .direction h1,
  .direction-split:not([data-active]) .direction h2 {
    font-size: clamp(32px, 7vw, 50px);
    line-height: .96;
  }

  .direction.is-collapsed { filter: saturate(.72) brightness(.78); }
  .direction.is-collapsed .direction-copy,
  .direction.is-collapsed .render-stack,
  .direction.is-collapsed .code-orbit,
  .direction.is-collapsed .signal-lines {
    opacity: 0;
    pointer-events: none;
    transform: translateX(0) scale(.84);
  }

  .mobile-direction-pick {
    position: absolute;
    z-index: 15;
    top: 82px;
    left: 50%;
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: calc(100% - 16px);
    padding: 7px 10px;
    transform: translateX(-50%);
    border: 1px solid currentColor;
    border-radius: 999px;
    background: rgba(255,255,255,.1);
    color: inherit;
    white-space: nowrap;
    backdrop-filter: blur(12px);
  }
  .direction-3d .mobile-direction-pick { color: var(--ink); background: rgba(255,255,255,.62); }
  .mobile-direction-pick span { font-size: 11px; font-weight: 800; letter-spacing: .12em; }
  .mobile-direction-pick small { font-size: 8px; letter-spacing: .08em; text-transform: uppercase; opacity: .65; }
  .direction.is-selected .mobile-direction-pick { opacity: 0; pointer-events: none; }
  .direction.is-collapsed .mobile-direction-pick {
    top: 50%;
    width: 42px;
    max-width: 42px;
    min-height: 176px;
    justify-content: center;
    padding: 12px 5px;
    transform: translate(-50%, -50%);
    writing-mode: vertical-rl;
    opacity: 1;
  }

  .split-marker {
    display: block;
    left: 50%;
    transition: left .72s cubic-bezier(.22, 1, .36, 1);
  }
  .direction-split[data-active="3d"] .split-marker { left: calc(100% - 48px); }
  .direction-split[data-active="code"] .split-marker { left: 48px; }
  .landing-footer { display: none; }
}

@media (max-width: 560px) {
  .landing-header { padding: 18px 18px; }
  .landing-page:has(.direction-split[data-active="code"]) .landing-header { padding-left: 62px; }
  .header-contact { font-size: 0; }
  .header-contact::after { content: "Email"; font-size: 11px; }
  .direction-copy { width: calc(100% - 28px); padding-bottom: 42px; }
  .direction h1 { font-size: clamp(38px, 10.6vw, 43px); line-height: .94; }
  .direction h2 { font-size: clamp(40px, 11.2vw, 46px); line-height: .92; }
  .direction-copy .eyebrow { margin-bottom: 10px; font-size: 9px; letter-spacing: .15em; }
  .direction-lead { margin: 14px 0 18px; font-size: 13.5px; line-height: 1.52; }
  .direction-link { width: 100%; min-width: 0; padding: 13px 14px; font-size: 10.5px; }
  .render-stack { top: 11%; width: 76%; }
  .code-orbit { top: 11%; width: 62%; }
  .tech-node { width: 48px; height: 48px; border-radius: 14px; font-size: 8px; }
  .direction-3d.is-selected .direction-copy { padding-bottom: 84px; }
  .direction-split:not([data-active]) .direction-copy { width: calc(100% - 18px); padding-bottom: clamp(200px, 35svh, 260px); }
  .direction-split:not([data-active]) .render-stack { top: 18%; width: 96%; }
  .direction-split:not([data-active]) .code-orbit { top: 18%; width: 88%; }
  .direction-split:not([data-active]) .direction h1,
  .direction-split:not([data-active]) .direction h2 { font-size: clamp(27px, 7.4vw, 32px); }
  .direction.is-collapsed .mobile-direction-pick { width: 38px; max-width: 38px; min-height: 156px; }
  .landing-footer { padding: 18px; }
  .landing-footer a { font-size: 9px; }
}

@media (orientation: landscape) and (max-height: 600px) and (max-width: 1000px) {
  .landing-header { padding: 12px 18px; font-size: 10px; }
  .landing-page:has(.direction-split[data-active="code"]) .landing-header { padding-left: 66px; }
  .header-contact { padding-bottom: 3px; font-size: 10px; }

  .direction-split:not([data-active]) .direction-copy {
    width: calc(100% - 28px);
    padding-bottom: 24px;
  }
  .direction-split:not([data-active]) .direction h1,
  .direction-split:not([data-active]) .direction h2 {
    font-size: clamp(28px, 4.2vw, 34px);
    line-height: .94;
  }
  .direction-split:not([data-active]) .render-stack { top: 24%; width: 54%; }
  .direction-split:not([data-active]) .code-orbit { top: 18%; width: 44%; }

  .mobile-direction-pick { top: 48px; padding: 5px 9px; }
  .mobile-direction-pick span { font-size: 9px; }
  .mobile-direction-pick small { font-size: 7px; }

  .direction.is-selected .direction-copy,
  .direction-3d.is-selected .direction-copy {
    position: absolute;
    bottom: 22px;
    left: clamp(20px, 3vw, 32px);
    width: min(44%, 360px);
    margin: 0;
    padding: 0;
  }
  .direction.is-selected h1 { font-size: clamp(30px, 4.2vw, 36px); line-height: .92; }
  .direction.is-selected h2 { font-size: clamp(32px, 4.7vw, 40px); line-height: .9; }
  .direction.is-selected .eyebrow { margin-bottom: 7px; font-size: 8px; }
  .direction.is-selected .direction-lead { margin: 9px 0 12px; font-size: 11px; line-height: 1.42; }
  .direction.is-selected .direction-link { padding: 9px 12px; font-size: 9px; }

  .direction.is-selected .render-stack { top: 15%; left: 73%; width: min(40%, 320px); }
  .direction.is-selected .code-orbit { top: 8%; left: 73%; width: min(36%, 290px); }
  .direction.is-collapsed .mobile-direction-pick { min-height: 132px; }
}

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