:root {
  color-scheme: dark;
  font-family: Manrope, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #f4f6f8;
  background: #0f1218;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  --muted: #a1a8b5;
  --line: rgba(255, 255, 255, .1);
  --cyan: #20c5df;
  --surface: #171b22;
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; background: #0f1218; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid #69e5f1; outline-offset: 4px; }
.landing-header, main, .landing-footer { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.landing-header { min-height: 80px; display: flex; align-items: center; gap: 40px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; letter-spacing: -.04em; white-space: nowrap; }
.brand img { object-fit: contain; }
.top-nav, .language-nav { display: flex; align-items: center; gap: 24px; }
.top-nav { margin-left: auto; color: #c2c7d0; font-size: 14px; }
.top-nav a:hover, .landing-footer a:hover { color: #fff; }
.language-nav { gap: 4px; padding: 4px; border: 1px solid var(--line); border-radius: 12px; color: #a1a8b5; font-size: 12px; }
.language-nav a { min-width: 34px; padding: 7px 8px; text-align: center; border-radius: 8px; }
.language-nav a[aria-current="page"] { color: #0c1016; background: var(--cyan); font-weight: 800; }
.hero { position: relative; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr); align-items: center; gap: 50px; min-height: 465px; padding: 62px 0 52px; overflow: hidden; }
.hero-copy { position: relative; z-index: 1; max-width: 650px; }
h1 { max-width: 680px; margin: 0; font-size: clamp(38px, 5vw, 64px); line-height: 1.04; letter-spacing: -.055em; }
.hero-lead { max-width: 590px; margin: 22px 0 0; color: #b4bbc6; font-size: 17px; line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 0 19px; border: 1px solid transparent; border-radius: 12px; font-size: 14px; font-weight: 750; transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #071217; background: var(--cyan); }
.button-primary:hover { background: #56d7e8; }
.button-secondary { border-color: var(--line); background: rgba(255,255,255,.035); }
.button-secondary:hover { border-color: rgba(255,255,255,.24); background: rgba(255,255,255,.07); }
.pay-note { margin: 19px 0 0; color: #8d96a3; font-size: 13px; }
.hero-art { position: relative; width: min(100%, 390px); aspect-ratio: 1; justify-self: end; display: grid; place-items: center; }
.hero-art::before { position: absolute; inset: 8%; content: ""; border-radius: 50%; background: radial-gradient(circle, rgba(21, 193, 220, .18), rgba(12, 18, 28, 0) 68%); }
.art-orbit { position: absolute; border: 1px solid rgba(95, 215, 235, .2); border-radius: 50%; transform: rotate(-28deg); }
.orbit-one { width: 88%; height: 50%; }
.orbit-two { width: 62%; height: 96%; transform: rotate(36deg); border-color: rgba(141, 128, 242, .2); }
.art-core { position: relative; width: 132px; height: 132px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.16); border-radius: 34px; background: linear-gradient(145deg, #232a36, #141820); box-shadow: 0 30px 100px rgba(0, 0, 0, .48), 0 0 70px rgba(24, 193, 220, .12); transform: rotate(-8deg); }
.art-core img { filter: drop-shadow(0 8px 22px rgba(29, 202, 226, .34)); }
.art-chip { position: absolute; padding: 10px 14px; border: 1px solid rgba(255,255,255,.11); border-radius: 12px; background: rgba(23, 27, 34, .92); color: #dce2e9; font-size: 13px; font-weight: 700; box-shadow: 0 12px 32px rgba(0,0,0,.25); }
.chip-image { top: 18%; left: 6%; }
.chip-video { top: 30%; right: 2%; }
.chip-audio { right: 12%; bottom: 15%; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; padding-bottom: 38px; }
.feature-card { min-height: 205px; padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: linear-gradient(155deg, rgba(255,255,255,.045), rgba(255,255,255,.018)); }
.feature-mark { color: #4ad5e7; font-size: 12px; font-weight: 800; letter-spacing: .08em; }
.feature-card h2, .knowledge-callout h2 { margin: 16px 0 8px; font-size: 18px; letter-spacing: -.025em; }
.feature-card p, .knowledge-callout p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.feature-card a, .text-link { display: inline-flex; align-items: center; gap: 9px; margin-top: 18px; color: #6de0ed; font-size: 13px; font-weight: 750; }
.knowledge-callout { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 74px; padding: 24px 28px; border: 1px solid rgba(32,197,223,.24); border-radius: 18px; background: linear-gradient(100deg, rgba(32,197,223,.09), rgba(255,255,255,.02)); }
.knowledge-callout h2 { margin-top: 0; }
.knowledge-callout .text-link { flex: 0 0 auto; margin: 0; }
.landing-footer { display: grid; grid-template-columns: 1fr 1.2fr auto; align-items: center; gap: 14px 28px; padding: 24px 0 34px; border-top: 1px solid var(--line); color: #8e97a4; font-size: 12px; }
.footer-brand { color: #e6ebf0; font-size: 14px; font-weight: 800; }
.landing-footer p { margin: 0; }
.landing-footer nav { display: flex; gap: 18px; }
.landing-footer > span { grid-column: 3; grid-row: 2; }
@media (max-width: 760px) {
  .landing-header, main, .landing-footer { width: min(100% - 32px, 560px); }
  .landing-header { min-height: 68px; gap: 12px; }
  .brand { gap: 7px; font-size: 17px; }
  .brand img { width: 32px; height: 32px; }
  .top-nav { display: none; }
  .language-nav { margin-left: auto; }
  .hero { grid-template-columns: 1fr; gap: 4px; padding: 54px 0 34px; }
  h1 { font-size: clamp(38px, 10vw, 54px); }
  .hero-lead { font-size: 15px; }
  .hero-art { width: min(82vw, 330px); justify-self: center; margin-top: 4px; }
  .art-core { width: 108px; height: 108px; border-radius: 28px; }
  .features { grid-template-columns: 1fr; gap: 10px; padding-bottom: 24px; }
  .feature-card { min-height: auto; padding: 21px; }
  .knowledge-callout { align-items: flex-start; flex-direction: column; margin-bottom: 48px; padding: 21px; }
  .landing-footer { grid-template-columns: 1fr auto; gap: 12px; }
  .landing-footer nav { grid-column: 1 / -1; flex-wrap: wrap; gap: 12px 18px; }
  .landing-footer > span { grid-column: 2; grid-row: 1; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}