:root {
  color-scheme: dark;
  --ink: #f7f5ff;
  --muted: #b8b5cc;
  --quiet: #8f8ba6;
  --surface: rgba(22, 20, 43, 0.72);
  --surface-strong: #17142b;
  --line: rgba(255, 255, 255, 0.1);
  --accent: #a996ff;
  --accent-bright: #d6cbff;
  --cyan: #7edcff;
  --page: #0b0917;
  --max: 72rem;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--page);
}

body {
  min-width: 20rem;
  margin: 0;
  background:
    radial-gradient(circle at 82% 8%, rgba(105, 82, 220, 0.22), transparent 28rem),
    radial-gradient(circle at 8% 52%, rgba(55, 161, 211, 0.11), transparent 30rem),
    var(--page);
  color: var(--ink);
  font-family: ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent-bright); }
a:hover { color: #fff; }

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  border-radius: 0.7rem;
  background: #fff;
  color: #111;
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
  padding: 1.35rem 0;
}

.brand {
  display: inline-flex;
  gap: 0.7rem;
  align-items: center;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 760;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  width: 1.85rem;
  height: 1.85rem;
  filter: drop-shadow(0 0 1rem rgba(139, 108, 255, 0.55));
}

.site-nav { display: flex; gap: 1.25rem; }
.site-nav a {
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}
.site-nav a[aria-current="page"], .site-nav a:hover { color: var(--ink); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(18rem, 0.92fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: center;
  width: min(calc(100% - 2rem), var(--max));
  min-height: 42rem;
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 7rem) 0;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 720;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1, h2, h3 { line-height: 1.12; text-wrap: balance; }
h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(3.2rem, 8vw, 6.6rem);
  letter-spacing: -0.065em;
}

.hero-copy {
  max-width: 36rem;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 2rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.15rem;
  padding: 0.75rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.055);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  border-color: transparent;
  background: linear-gradient(120deg, #8b6cff, #5b7cff 55%, #5dcff0);
  box-shadow: 0 1rem 3rem rgba(92, 94, 235, 0.22);
}
.button:hover { transform: translateY(-1px); }

.hero-art {
  position: relative;
  isolation: isolate;
  max-width: 28rem;
  margin: 0 auto;
}
.hero-art::before {
  position: absolute;
  z-index: -1;
  inset: 18% 7% 8%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(120, 106, 255, 0.28), transparent 68%);
  content: "";
  filter: blur(1rem);
}
.hero-art img { display: block; width: 100%; height: auto; }

.section {
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.section-heading { max-width: 46rem; margin-bottom: 2.5rem; }
.section-heading h2, .prose h1 {
  margin: 0.25rem 0 0.9rem;
  font-size: clamp(2.25rem, 5vw, 4rem);
  letter-spacing: -0.045em;
}
.section-heading p { margin: 0; color: var(--muted); font-size: 1.1rem; }

.feature-grid, .support-grid, .summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  padding: clamp(1.35rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 1.5rem;
  background: linear-gradient(150deg, rgba(31, 28, 57, 0.88), rgba(18, 16, 35, 0.76));
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.035);
}
.card h2, .card h3 { margin-top: 0; letter-spacing: -0.025em; }
.card h3 { font-size: 1.25rem; }
.card p:last-child { margin-bottom: 0; }
.card p, .card li { color: var(--muted); }
.card-number { color: var(--accent); font-size: 0.78rem; font-weight: 780; letter-spacing: 0.12em; }

.privacy-note {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
  padding: clamp(1.5rem, 5vw, 3rem);
  border: 1px solid rgba(126, 220, 255, 0.18);
  border-radius: 1.75rem;
  background: linear-gradient(135deg, rgba(54, 46, 107, 0.62), rgba(21, 44, 65, 0.5));
}
.privacy-note h2 { margin: 0 0 0.6rem; font-size: clamp(1.7rem, 4vw, 2.7rem); }
.privacy-note p { max-width: 47rem; margin: 0; color: var(--muted); }

.page-main {
  width: min(calc(100% - 2rem), 68rem);
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 7rem) 0;
}

.prose-header {
  max-width: 49rem;
  margin-bottom: 3rem;
}
.prose-header .lede { color: var(--muted); font-size: 1.18rem; }
.updated { color: var(--quiet); font-size: 0.9rem; }

.summary-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 2.3rem 0 4rem; }
.summary-grid .card { padding: 1.35rem; }
.summary-grid strong { display: block; margin-bottom: 0.35rem; color: var(--ink); }
.summary-grid span { color: var(--muted); font-size: 0.94rem; }

.prose { max-width: 49rem; }
.prose > section { padding: 2rem 0; border-top: 1px solid var(--line); }
.prose h2 { margin: 0 0 1rem; font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -0.03em; }
.prose h3 { margin: 1.8rem 0 0.5rem; font-size: 1.15rem; }
.prose p, .prose li { color: var(--muted); }
.prose li + li { margin-top: 0.45rem; }
.prose strong { color: var(--ink); }
.prose table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
.prose th, .prose td { padding: 1rem; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose th { background: rgba(255, 255, 255, 0.045); color: var(--ink); }
.prose td { color: var(--muted); }

.callout {
  margin: 1.5rem 0;
  padding: 1.2rem 1.35rem;
  border-left: 3px solid var(--cyan);
  border-radius: 0 1rem 1rem 0;
  background: rgba(76, 147, 181, 0.1);
}
.callout p { margin: 0; }

.support-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 2rem; }
.support-grid .card ul { padding-left: 1.25rem; }
.contact-card {
  display: flex;
  gap: 2rem;
  align-items: center;
  justify-content: space-between;
  margin: 3rem 0;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid rgba(169, 150, 255, 0.28);
  border-radius: 1.5rem;
  background: linear-gradient(120deg, rgba(89, 67, 178, 0.35), rgba(36, 51, 96, 0.35));
}
.contact-card h2 { margin: 0 0 0.5rem; }
.contact-card p { margin: 0; color: var(--muted); }

.site-footer {
  display: flex;
  gap: 2rem;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--quiet);
  font-size: 0.86rem;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.footer-links a { color: var(--muted); text-decoration: none; }

:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }

@media (max-width: 48rem) {
  .site-nav { gap: 0.8rem; }
  .site-nav a:first-child { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 4rem; text-align: center; }
  .hero h1, .hero-copy { margin-right: auto; margin-left: auto; }
  .actions { justify-content: center; }
  .hero-art { order: -1; width: min(70vw, 19rem); }
  .feature-grid, .summary-grid { grid-template-columns: 1fr; }
  .privacy-note { grid-template-columns: 1fr; }
  .support-grid { grid-template-columns: 1fr; }
  .contact-card { align-items: flex-start; flex-direction: column; }
  .prose table, .prose thead, .prose tbody, .prose tr, .prose th, .prose td { display: block; }
  .prose thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .prose tr { margin-bottom: 1rem; border: 1px solid var(--line); border-radius: 1rem; overflow: hidden; }
  .prose th, .prose td { border: 0; }
  .prose td::before { display: block; margin-bottom: 0.3rem; color: var(--ink); font-size: 0.8rem; font-weight: 760; content: attr(data-label); }
  .site-footer { align-items: flex-start; flex-direction: column; gap: 1rem; }
}

@media (prefers-reduced-motion: no-preference) {
  .hero-art { animation: float 6s ease-in-out infinite; }
  .button { transition: color 160ms ease, transform 160ms ease; }
  @keyframes float { 50% { transform: translateY(-0.65rem) rotate(0.5deg); } }
}

@media (prefers-contrast: more) {
  :root { --muted: #e2dfed; --quiet: #c6c2d5; --line: rgba(255, 255, 255, 0.35); }
}