:root {
  color-scheme: dark;
  --bg: #08111e;
  --surface: #0e1a2b;
  --surface-2: #13233a;
  --line: rgba(74, 214, 211, 0.22);
  --line-strong: rgba(74, 214, 211, 0.46);
  --text: #f4f8ff;
  --muted: #aebdd1;
  --cyan: #42d6d2;
  --blue: #4da3ff;
  --green: #3ddc97;
  --yellow: #ffe45e;
  --red: #ff5a6e;
  --purple: #b18cff;
  --orange: #ff7417;
  --max: 1120px;
  font-family: Inter, ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 12% -8%, rgba(77, 163, 255, 0.18), transparent 34rem),
    radial-gradient(circle at 88% 8%, rgba(177, 140, 255, 0.12), transparent 31rem),
    var(--bg);
  color: var(--text);
  font-size: 17px;
  line-height: 1.65;
}

a { color: var(--cyan); }
a:hover { color: #8af4ef; }

img { max-width: 100%; }

.wrap {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  background: rgba(8, 17, 30, 0.86);
  backdrop-filter: blur(18px);
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.brand img {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  box-shadow: 0 10px 28px rgba(0,0,0,0.28);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 15px;
  font-weight: 750;
}

.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(310px, 0.72fr);
  gap: clamp(44px, 8vw, 96px);
  align-items: center;
  min-height: calc(100vh - 76px);
  padding-block: 74px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1, h2, h3 { line-height: 1.08; letter-spacing: -0.035em; }

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(48px, 7.4vw, 88px);
  font-weight: 950;
}

.accent { color: var(--green); }

.lead {
  max-width: 660px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.52;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: rgba(19, 35, 58, 0.64);
  color: var(--text);
  text-decoration: none;
  font-weight: 850;
}

.button.primary {
  border-color: transparent;
  background: linear-gradient(135deg, #159f9b, #2f7d86);
  box-shadow: 0 16px 38px rgba(32, 178, 174, 0.2);
}

.availability { color: #8192aa; font-size: 14px; }

.hero-art { position: relative; padding: 18px; }

.hero-art::before {
  content: "";
  position: absolute;
  inset: 12% -8% 8%;
  z-index: -1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(66,214,210,0.2), transparent 68%);
  filter: blur(10px);
}

.hero-art img {
  display: block;
  width: min(100%, 380px);
  margin-inline: auto;
  border-radius: 28px;
  box-shadow: 0 30px 90px rgba(0,0,0,0.45);
}

.section { padding-block: 90px; }
.section + .section { border-top: 1px solid rgba(255,255,255,0.07); }

.section-heading { max-width: 760px; margin-bottom: 46px; }

.section h2 {
  margin: 0;
  font-size: clamp(34px, 5vw, 58px);
  font-weight: 920;
}

.section-heading p { margin: 18px 0 0; color: var(--muted); font-size: 19px; }

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

.feature {
  padding: 28px 0 0;
  border-top: 3px solid var(--blue);
}

.feature:nth-child(2) { border-color: var(--purple); }
.feature:nth-child(3) { border-color: var(--yellow); }
.feature h3 { margin: 0 0 12px; font-size: 25px; }
.feature p { margin: 0; color: var(--muted); }

.screens {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  align-items: start;
}

.screens figure { margin: 0; }
.screens img {
  display: block;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 22px;
  box-shadow: 0 24px 56px rgba(0,0,0,0.28);
}

.screens figcaption { margin-top: 12px; color: #8fa0b8; font-size: 14px; }

.page-hero { padding: 76px 0 42px; }
.page-hero h1 { font-size: clamp(42px, 6vw, 68px); }
.page-hero .lead { max-width: 780px; }

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 250px;
  gap: 70px;
  align-items: start;
  padding-bottom: 96px;
}

.prose { max-width: 780px; }
.prose h2 { margin: 54px 0 14px; font-size: 30px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin: 32px 0 10px; font-size: 22px; }
.prose p, .prose li { color: #c2ccda; }
.prose ul, .prose ol { padding-left: 24px; }
.prose li + li { margin-top: 9px; }
.prose strong { color: var(--text); }
.prose table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.prose th, .prose td { padding: 14px; border: 1px solid rgba(255,255,255,0.1); text-align: left; vertical-align: top; }
.prose th { background: rgba(77,163,255,0.08); color: var(--text); }
.prose td { color: #c2ccda; }

.notice {
  margin: 28px 0;
  padding: 18px 20px;
  border-left: 3px solid var(--yellow);
  background: rgba(255, 228, 94, 0.07);
  color: #dfe5ed;
}

.support-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 30px 0 44px;
}

.support-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(14,26,43,0.72);
}
.support-card h3 { margin: 0 0 8px; font-size: 20px; }
.support-card p { margin: 0; }

.side-nav {
  position: sticky;
  top: 106px;
  padding-left: 22px;
  border-left: 1px solid var(--line);
}
.side-nav strong { display: block; margin-bottom: 12px; }
.side-nav a { display: block; margin: 8px 0; color: var(--muted); text-decoration: none; font-size: 15px; }
.side-nav a:hover { color: var(--text); }

.step-list { counter-reset: steps; list-style: none; padding: 0 !important; }
.step-list li {
  position: relative;
  min-height: 48px;
  padding-left: 64px;
  margin: 22px 0 !important;
}
.step-list li::before {
  counter-increment: steps;
  content: counter(steps);
  position: absolute;
  left: 0;
  top: -4px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--cyan);
  font-weight: 900;
}

.site-footer {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-block: 34px;
  color: #8494aa;
  font-size: 14px;
}
.footer-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-links a { color: #9eacc0; text-decoration: none; }

@media (max-width: 820px) {
  .nav-links a:not(.keep) { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-block: 62px 76px; }
  .hero-art { max-width: 430px; margin-inline: auto; }
  .feature-grid, .screens { grid-template-columns: 1fr; }
  .screens { max-width: 440px; margin-inline: auto; gap: 32px; }
  .content-grid { grid-template-columns: 1fr; gap: 22px; }
  .side-nav { position: static; order: -1; padding: 16px 0; border-left: 0; border-block: 1px solid var(--line); }
  .side-nav strong { display: none; }
  .side-nav a { display: inline-block; margin: 4px 16px 4px 0; }
}

@media (max-width: 560px) {
  .wrap { width: min(calc(100% - 28px), var(--max)); }
  .nav { min-height: 66px; }
  .brand img { width: 40px; height: 40px; }
  .brand span { font-size: 14px; }
  .hero { padding-top: 48px; }
  h1 { font-size: clamp(42px, 14vw, 62px); }
  .support-cards { grid-template-columns: 1fr; }
  .prose table { display: block; overflow-x: auto; }
  .footer-row { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}