:root {
  --background: #101214;
  --panel: rgba(255, 255, 255, 0.075);
  --panel-strong: rgba(255, 255, 255, 0.11);
  --text: #f8fafb;
  --muted: rgba(248, 250, 251, 0.72);
  --line: rgba(255, 255, 255, 0.16);
  --cyan: #08c8c8;
  --pink: #f04467;
  --orange: #ff8b16;
  --max-width: 900px;
}

* { box-sizing: border-box; }

html { color-scheme: dark; }

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  font: 16px/1.6 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    linear-gradient(90deg, transparent 49.4%, rgba(8, 200, 200, 0.35) 49.4%, rgba(8, 200, 200, 0.35) 50.6%, transparent 50.6%),
    linear-gradient(0deg, transparent 49.4%, rgba(8, 200, 200, 0.25) 49.4%, rgba(8, 200, 200, 0.25) 50.6%, transparent 50.6%),
    radial-gradient(circle at 18% 5%, rgba(240, 68, 103, 0.28), transparent 32%),
    radial-gradient(circle at 82% 20%, rgba(255, 139, 22, 0.22), transparent 34%),
    var(--background);
  background-size: 170px 170px, 170px 170px, auto, auto, auto;
  background-attachment: fixed;
}

a { color: #8ee9ff; text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 3px solid white; outline-offset: 4px; border-radius: 6px; }

header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(16, 18, 20, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
  padding: 14px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand:hover { text-decoration: none; }
.brand img { width: 42px; height: 42px; border-radius: 10px; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45); }

.links { display: flex; gap: 9px; }
.links a { color: var(--text); padding: 7px 11px; border: 1px solid transparent; border-radius: 999px; }
.links a.active { border-color: var(--cyan); background: rgba(8, 200, 200, 0.13); }

main, footer { width: min(var(--max-width), calc(100% - 32px)); margin-inline: auto; }

.hero { padding: 64px 4px 28px; }
.hero h1 { margin: 3px 0 8px; font-size: clamp(2.3rem, 8vw, 4.7rem); line-height: 1; letter-spacing: -0.04em; }
.lead { max-width: 680px; margin: 0; color: var(--muted); font-size: clamp(1.05rem, 2.5vw, 1.3rem); }
.eyebrow { margin: 0; color: var(--cyan); font-size: 0.78rem; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; }

.card {
  margin: 16px 0;
  padding: clamp(20px, 4vw, 30px);
  background: rgba(16, 18, 20, 0.88);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.34);
}

.card h2 { margin: 0 0 8px; font-size: 1.35rem; }
.card p { color: var(--muted); }
.card p:last-child { margin-bottom: 0; }
.card li, .card dd { color: var(--muted); }
.card strong, .card dt { color: var(--text); }

.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.cards .card { margin: 0; }
ul { margin: 10px 0 0; padding-left: 21px; }
li + li { margin-top: 5px; }

.faq { margin: 0; }
.faq div { padding: 15px 0; border-bottom: 1px solid var(--line); }
.faq div:first-child { padding-top: 4px; }
.faq div:last-child { padding-bottom: 0; border-bottom: 0; }
.faq dt { font-weight: 750; }
.faq dd { margin: 3px 0 0; }

.button {
  display: inline-block;
  padding: 9px 13px;
  color: var(--text);
  background: linear-gradient(135deg, rgba(240, 68, 103, 0.32), rgba(255, 139, 22, 0.28));
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 12px;
  font-weight: 700;
}

.button:hover { text-decoration: none; background: var(--panel-strong); }
.small { font-size: 0.88rem; }

footer {
  padding: 22px 4px 44px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 0.84rem;
}

@media (max-width: 680px) {
  .cards { grid-template-columns: 1fr; }
  .hero { padding-top: 44px; }
}

@media (max-width: 430px) {
  .nav { align-items: flex-start; }
  .links { flex-direction: column; align-items: flex-end; gap: 2px; }
  footer { flex-direction: column; }
}

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