:root {
  color-scheme: dark;
  --bg: #03050b;
  --panel: rgba(15, 22, 35, .82);
  --panel-strong: rgba(20, 29, 46, .94);
  --line: rgba(148, 163, 184, .18);
  --text: #edf5ff;
  --muted: #9aa8bc;
  --blue: #3b82f6;
  --cyan: #22d3ee;
  --violet: #8b7cf6;
  --green: #34d399;
  --yellow: #fbbf24;
}

* { box-sizing: border-box; }

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background:
    radial-gradient(ellipse at 14% 4%, rgba(59, 130, 246, .2), transparent 34%),
    radial-gradient(ellipse at 82% 20%, rgba(139, 124, 246, .18), transparent 35%),
    radial-gradient(ellipse at 48% 82%, rgba(34, 211, 238, .1), transparent 38%),
    #03050b;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: -20vmax;
  z-index: -1;
  pointer-events: none;
}

body::before {
  opacity: .55;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, .9) 0 1px, transparent 1.4px),
    radial-gradient(circle, rgba(118, 190, 255, .7) 0 1px, transparent 1.5px);
  background-position: 0 0, 43px 67px;
  background-size: 89px 89px, 137px 137px;
  animation: stars 80s linear infinite;
}

body::after {
  background: linear-gradient(115deg, transparent 31%, rgba(91, 73, 180, .08) 46%, rgba(34, 211, 238, .08) 52%, transparent 67%);
  transform: rotate(-8deg);
}

@keyframes stars {
  to { transform: translate3d(89px, 45px, 0); }
}

a { color: #8fc5ff; }
a:hover { color: #c2e2ff; }

.shell {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
}

.site-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 24px 0 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: -.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 12px;
  color: #fff;
  font-size: 23px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 9px 28px rgba(59, 130, 246, .36);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px;
}

.site-nav a {
  padding: 7px 11px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  border-color: var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, .055);
}

.crumbs {
  margin: 26px 0 12px;
  color: var(--muted);
  font-size: 13px;
}

.crumbs a { color: var(--muted); }

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 7vw, 68px);
  border: 1px solid rgba(106, 143, 212, .24);
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(24, 35, 58, .94), rgba(8, 13, 24, .88));
  box-shadow: 0 28px 90px rgba(0, 0, 0, .42);
}

.hero::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -130px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, .25), rgba(139, 124, 246, .12) 42%, transparent 70%);
  filter: blur(2px);
}

.eyebrow {
  position: relative;
  z-index: 1;
  margin: 0 0 8px;
  color: #74dcf1;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.18;
}

h1 {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0;
  font-size: clamp(34px, 7vw, 64px);
  letter-spacing: -.045em;
}

.lead {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 20px 0 0;
  color: #b8c5d8;
  font-size: clamp(17px, 2.4vw, 21px);
}

.chips,
.actions,
.model-links {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.chips { margin-top: 22px; }

.chip {
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #c5d0df;
  background: rgba(255, 255, 255, .045);
  font-size: 12px;
}

.actions { margin-top: 28px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 18px;
  border: 1px solid rgba(122, 174, 255, .26);
  border-radius: 13px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), #2f6fe0);
  box-shadow: 0 10px 28px rgba(59, 130, 246, .28);
  font-weight: 750;
  text-decoration: none;
  transition: transform .15s ease, filter .15s ease;
}

.button:hover {
  color: #fff;
  filter: brightness(1.09);
  transform: translateY(-2px);
}

.button.secondary {
  border-color: var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, .055);
  box-shadow: none;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  padding: 8px 12px;
  border: 1px solid rgba(251, 191, 36, .22);
  border-radius: 10px;
  color: #ffe397;
  background: rgba(251, 191, 36, .07);
  font-size: 13px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.card,
.wide-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
  box-shadow: 0 14px 48px rgba(0, 0, 0, .24);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
}

.card { padding: 24px; }
.wide-card { margin-top: 18px; padding: clamp(24px, 5vw, 38px); }

.card h2,
.wide-card h2 {
  margin: 0 0 12px;
  font-size: 21px;
  letter-spacing: -.015em;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.card p,
.wide-card p,
.card li,
.wide-card li {
  color: var(--muted);
}

.card p:last-child,
.wide-card p:last-child { margin-bottom: 0; }

.clean-list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.clean-list li {
  position: relative;
  margin-top: 9px;
  padding-left: 23px;
}

.clean-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 800;
}

.model-links { margin-top: 18px; }

.model-links a {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: #cfe3ff;
  background: rgba(59, 130, 246, .07);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.faq details {
  border-top: 1px solid var(--line);
  padding: 14px 0;
}

.faq details:first-of-type { border-top: 0; }
.faq summary { cursor: pointer; font-weight: 700; }
.faq details div { padding: 10px 20px 0 0; color: var(--muted); }

.contact-link {
  display: block;
  margin-top: 12px;
  padding: 18px;
  border: 1px solid rgba(85, 169, 255, .26);
  border-radius: 15px;
  color: var(--text);
  background: linear-gradient(135deg, rgba(31, 137, 229, .17), rgba(54, 73, 125, .17));
  text-decoration: none;
}

.contact-link strong { display: block; font-size: 17px; }
.contact-link span { color: var(--muted); font-size: 13px; }

.notice {
  border-left: 3px solid var(--yellow);
  padding: 12px 15px;
  color: #d8cfae;
  background: rgba(251, 191, 36, .055);
}

.site-foot {
  margin-top: 22px;
  padding: 26px 0 40px;
  color: #78869a;
  font-size: 13px;
  text-align: center;
}

.site-foot a { color: #9baabe; }

@media (max-width: 760px) {
  .site-head { align-items: flex-start; flex-direction: column; }
  .site-nav { justify-content: flex-start; }
  .grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .shell { width: min(100% - 22px, 960px); }
  .site-head { padding-top: 14px; }
  .site-nav a { padding: 6px 8px; font-size: 12px; }
  .hero { border-radius: 21px; padding: 27px 21px; }
  h1 { font-size: 36px; }
  .lead { font-size: 17px; }
  .actions .button { width: 100%; }
  .card, .wide-card { border-radius: 17px; padding: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  body::before { animation: none; }
  .button { transition: none; }
}