:root {
  color-scheme: dark;
  --bg: #05081d;
  --surface: rgba(18, 25, 65, 0.78);
  --line: rgba(255, 255, 255, 0.11);
  --text: #f7f8ff;
  --muted: #aeb7d8;
  --cyan: #19d9ff;
  --violet: #9d5cff;
  --magenta: #f14bdc;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 8%, rgba(25, 217, 255, 0.14), transparent 30rem),
    radial-gradient(circle at 90% 13%, rgba(157, 92, 255, 0.18), transparent 34rem),
    linear-gradient(155deg, #05081d 0%, #090d2b 48%, #100a2d 100%);
  color: var(--text);
  font: 16px/1.68 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.2;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, black, transparent 70%);
}

a { color: var(--cyan); }
a:focus-visible, summary:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 4px;
  border-radius: 8px;
}

.shell {
  width: min(1020px, calc(100% - 32px));
  margin: 0 auto;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 760;
  letter-spacing: -.02em;
  text-decoration: none;
}

.mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 13px;
  background: linear-gradient(145deg, rgba(25,217,255,.18), rgba(157,92,255,.2));
  box-shadow: 0 8px 30px rgba(25,217,255,.12);
}

nav { display: flex; gap: 8px; }
nav a {
  padding: 9px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: .9rem;
  font-weight: 650;
  text-decoration: none;
}
nav a[aria-current="page"], nav a:hover {
  color: var(--text);
  background: rgba(255,255,255,.08);
}

.hero { padding: 74px 0 54px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 32px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.7rem, 7vw, 5.4rem);
  line-height: 1;
  letter-spacing: -.06em;
}

.gradient-text {
  color: transparent;
  background: linear-gradient(100deg, var(--cyan), var(--violet) 65%, var(--magenta));
  background-clip: text;
  -webkit-background-clip: text;
}

.hero-copy {
  max-width: 700px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.1rem;
}

.hero-art {
  display: grid;
  min-height: 250px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 32px;
  background: linear-gradient(145deg, rgba(25,217,255,.08), rgba(157,92,255,.12));
  box-shadow: var(--shadow);
  overflow: hidden;
}
.hero-art svg { width: 86%; filter: drop-shadow(0 12px 30px rgba(25,217,255,.3)); }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 0 0 56px;
}

.card, details, article, .toc {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.card {
  padding: 22px;
  border-radius: 22px;
  color: var(--text);
  text-decoration: none;
  transition: transform .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-3px); border-color: rgba(25,217,255,.4); }
.card strong { display: block; margin-bottom: 5px; }
.card span { color: var(--muted); font-size: .92rem; }

main { padding-bottom: 74px; }
main > section:not(.hero) { margin-top: 56px; }
h2 { margin: 0 0 18px; font-size: clamp(1.55rem, 4vw, 2.25rem); letter-spacing: -.035em; }
.faq { display: grid; gap: 12px; }

details { border-radius: 18px; overflow: hidden; }
summary {
  position: relative;
  padding: 19px 54px 19px 20px;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "+";
  position: absolute;
  top: 14px;
  right: 20px;
  color: var(--cyan);
  font-size: 1.45rem;
  font-weight: 400;
}
details[open] summary::after { content: "−"; }
details p, details ol, details ul { margin: 0; padding: 0 20px 20px; color: var(--muted); }
details ol, details ul { padding-left: 42px; }

.contact { padding: clamp(24px, 5vw, 38px); border-radius: 26px; }
.contact p { color: var(--muted); }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  margin-top: 10px;
  padding: 0 20px;
  border-radius: 15px;
  background: linear-gradient(100deg, var(--cyan), #66c8ff);
  color: #061027;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 10px 32px rgba(25,217,255,.22);
}

.meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.chip {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: .82rem;
}

.legal-hero { padding-bottom: 46px; border-bottom: 1px solid var(--line); }
.legal-layout {
  display: grid;
  grid-template-columns: 215px minmax(0, 1fr);
  gap: 38px;
  align-items: start;
  margin-top: 40px;
}
.toc { position: sticky; top: 20px; padding: 18px; border-radius: 20px; }
.toc strong { display: block; margin-bottom: 9px; font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; }
.toc a { display: block; padding: 5px 0; color: var(--muted); font-size: .86rem; text-decoration: none; }
.toc a:hover { color: var(--cyan); }

article { padding: clamp(24px, 5vw, 40px); border-radius: 28px; }
article section { scroll-margin-top: 22px; padding-bottom: 26px; margin-bottom: 26px; border-bottom: 1px solid var(--line); }
article section:last-child { padding: 0; margin: 0; border: 0; }
article h2 { margin-bottom: 8px; font-size: 1.3rem; }
article p, article li { color: var(--muted); }
article p { margin: 9px 0 0; }
article ul { margin: 9px 0 0; padding-left: 22px; }
.callout { margin-top: 16px; padding: 14px 16px; border-left: 3px solid var(--cyan); border-radius: 0 14px 14px 0; background: rgba(25,217,255,.07); color: var(--text); }

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .88rem;
}
footer p { margin: 0; }
footer div { display: flex; gap: 18px; }

@media (max-width: 760px) {
  .hero-grid, .legal-layout { grid-template-columns: 1fr; }
  .hero { padding-top: 44px; }
  .hero-art { min-height: 200px; }
  .cards { grid-template-columns: 1fr; }
  .toc { position: static; columns: 2; }
  .toc strong { column-span: all; }
  footer { flex-direction: column; }
}

@media (max-width: 470px) {
  .shell { width: min(100% - 22px, 1020px); }
  header { gap: 12px; }
  nav a { padding: 8px 10px; }
  .brand > span:last-child { display: none; }
  h1 { font-size: 3rem; }
  .toc { columns: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}