:root {
  --bg: #030712;
  --surface: #111827;
  --surface-2: rgba(17, 24, 39, 0.86);
  --border: #374151;
  --text: #ffffff;
  --text-muted: #9ca3af;
  --accent: #2dd4bf;
  --accent-text: #062a27;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.38);
  --radius-lg: 20px;
  --radius-md: 14px;
  --container: 760px;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  color: var(--text);
  background:
    radial-gradient(600px 300px at 15% 5%, rgba(45, 212, 191, 0.12), transparent 70%),
    radial-gradient(700px 360px at 90% 10%, rgba(45, 212, 191, 0.06), transparent 72%),
    linear-gradient(var(--bg), var(--bg));
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(156, 163, 175, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(156, 163, 175, 0.08) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 90%);
}

a {
  color: inherit;
  text-decoration: none;
}

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

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.site-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 0;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  display: inline-grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: 999px;
  color: var(--accent);
  border: 1px solid rgba(45, 212, 191, 0.35);
  background: rgba(45, 212, 191, 0.08);
}

.topnav {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  color: var(--text-muted);
  font-weight: 500;
}

.topnav a {
  padding: 0.3rem 0.15rem;
}

main {
  flex: 1;
  display: grid;
  align-items: center;
  padding-block: var(--space-4) var(--space-6);
}

.hero-card,
.content-card {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(55, 65, 81, 0.95);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0)),
    var(--surface-2);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.hero-card {
  padding: clamp(1.25rem, 4vw, 2.5rem);
  text-align: center;
}

.hero-card::after,
.content-card::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.18), transparent 35%, transparent 65%, rgba(45, 212, 191, 0.08));
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  padding: 1px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(45, 212, 191, 0.28);
  background: rgba(45, 212, 191, 0.08);
  color: #b9fff3;
  font-size: 0.85rem;
  font-weight: 500;
}

.eyebrow {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0.55rem 0 0;
  font-size: clamp(2rem, 7vw, 3.35rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero-subheadline {
  margin: 0.6rem 0 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(1.05rem, 3vw, 1.25rem);
  font-weight: 500;
}

.hero-copy {
  margin: var(--space-4) auto 0;
  color: var(--text-muted);
  max-width: 38ch;
  font-size: 1rem;
}

.hero-actions {
  margin-top: var(--space-5);
  display: flex;
  justify-content: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform 140ms ease, border-color 140ms ease, background-color 140ms ease, color 140ms ease, box-shadow 140ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-text);
  box-shadow: 0 8px 22px rgba(45, 212, 191, 0.18);
}

.btn-primary:hover {
  background: #43ddca;
  color: #031614;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.02);
  border-color: var(--border);
  color: var(--text);
}

.btn-secondary:hover {
  border-color: rgba(45, 212, 191, 0.55);
  background: rgba(45, 212, 191, 0.06);
}

.hero-note {
  margin: var(--space-4) auto 0;
  max-width: 50ch;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.feature-chips {
  margin: var(--space-5) 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
}

.feature-chips li {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(55, 65, 81, 0.9);
  background: rgba(255, 255, 255, 0.015);
  color: #d1d5db;
  font-size: 0.88rem;
}

.content-layout {
  padding-block: var(--space-4) var(--space-6);
}

.content-card {
  padding: clamp(1.1rem, 3.5vw, 2rem);
}

.page-kicker {
  margin: 0;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
}

.page-title {
  margin: 0.45rem 0 0;
  font-size: clamp(1.6rem, 5vw, 2.3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.page-body {
  margin-top: var(--space-4);
  color: var(--text-muted);
  max-width: 65ch;
}

.page-body p {
  margin: 0 0 var(--space-3);
}

.callout {
  margin-top: var(--space-4);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid rgba(55, 65, 81, 0.85);
  background: rgba(255, 255, 255, 0.015);
}

.callout strong {
  display: block;
  margin-bottom: 0.35rem;
}

.list-title {
  margin: var(--space-5) 0 var(--space-2);
  font-size: 1rem;
}

.bullet-list {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text-muted);
}

.bullet-list li + li {
  margin-top: 0.45rem;
}

.inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1rem;
  margin-top: var(--space-4);
}

.inline-links a {
  color: #d1d5db;
  font-weight: 500;
}

.inline-links a:hover {
  color: var(--accent);
}

.site-footer {
  padding-top: var(--space-4);
  padding-bottom: var(--space-5);
  color: var(--text-muted);
}

.footer-grid {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem 2rem;
  padding-top: var(--space-4);
  border-top: 1px solid rgba(55, 65, 81, 0.55);
}

.footer-title {
  margin: 0;
  color: var(--text);
  font-weight: 600;
}

.footer-muted {
  margin: 0.5rem 0 0;
}

.footer-muted a,
.footer-links a {
  color: #d1d5db;
}

.footer-muted a:hover,
.footer-links a:hover {
  color: var(--accent);
}

.footer-status {
  margin: 0.4rem 0 0;
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  font-weight: 500;
}

.copyright {
  margin: var(--space-3) 0 0;
  font-size: 0.9rem;
}

.muted-link {
  color: #d1d5db;
}

.muted-link:hover {
  color: var(--accent);
}

@media (max-width: 640px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .topnav {
    gap: 0.9rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .feature-chips {
    justify-content: flex-start;
  }

  .footer-grid {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}