:root {
  color-scheme: dark light;
  --bg: #07070a;
  --bg-elevated: #101014;
  --surface: rgba(255, 255, 255, 0.06);
  --surface-strong: rgba(255, 255, 255, 0.1);
  --stroke: rgba(255, 255, 255, 0.12);
  --text: #f4f4f7;
  --text-muted: rgba(255, 255, 255, 0.62);
  --text-faint: rgba(255, 255, 255, 0.42);
  --accent: #3b9eff;
  --accent-2: #8c40d9;
  --accent-glow: rgba(59, 158, 255, 0.35);
  --success: #34d399;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --font: "SF Pro Display", "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --max: 760px;
  --nav-h: 64px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f3f5fa;
    --bg-elevated: #ffffff;
    --surface: rgba(255, 255, 255, 0.82);
    --surface-strong: #ffffff;
    --stroke: rgba(15, 23, 42, 0.1);
    --text: #0f172a;
    --text-muted: #475569;
    --text-faint: #94a3b8;
    --accent: #0071e3;
    --accent-2: #6d28d9;
    --accent-glow: rgba(0, 113, 227, 0.18);
    --shadow: 0 20px 60px rgba(15, 23, 42, 0.1);
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 15% -10%, rgba(59, 158, 255, 0.22), transparent 55%),
    radial-gradient(ellipse 60% 45% at 95% 5%, rgba(140, 64, 217, 0.18), transparent 50%),
    radial-gradient(ellipse 70% 50% at 50% 110%, rgba(59, 158, 255, 0.1), transparent 55%),
    var(--bg);
}

@media (prefers-color-scheme: light) {
  .bg-mesh {
    background:
      radial-gradient(ellipse 80% 50% at 15% -10%, rgba(0, 113, 227, 0.12), transparent 55%),
      radial-gradient(ellipse 60% 45% at 95% 5%, rgba(109, 40, 217, 0.08), transparent 50%),
      var(--bg);
  }
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 1.25rem;
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  background: rgba(7, 7, 10, 0.72);
  border-bottom: 1px solid var(--stroke);
}

@media (prefers-color-scheme: light) {
  .site-nav { background: rgba(243, 245, 250, 0.82); }
}

.nav-inner {
  width: min(100%, var(--max));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
}

.brand:hover { opacity: 0.9; }

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 24px var(--accent-glow);
  flex-shrink: 0;
}

.brand-mark svg {
  width: 20px;
  height: 20px;
  fill: white;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  transition: color 0.15s, background 0.15s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: var(--surface);
}

.page {
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.hero {
  text-align: center;
  padding: 1.5rem 0 2.5rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(59, 158, 255, 0.12);
  border: 1px solid rgba(59, 158, 255, 0.22);
  margin-bottom: 1rem;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.hero .lead {
  margin: 0 auto;
  max-width: 34rem;
  font-size: 1.08rem;
  color: var(--text-muted);
}

.glass-card {
  background: var(--surface);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.content-card {
  padding: clamp(1.5rem, 4vw, 2.25rem);
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--surface-strong);
  border: 1px solid var(--stroke);
}

.meta-pill strong { color: var(--text); font-weight: 600; }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.85rem;
  margin: 1.75rem 0 2rem;
}

.summary-item {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(160deg, rgba(59, 158, 255, 0.1), rgba(140, 64, 217, 0.06));
  border: 1px solid var(--stroke);
}

.summary-item .icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  margin-bottom: 0.65rem;
  background: rgba(59, 158, 255, 0.15);
  color: var(--accent);
  font-size: 1rem;
}

.summary-item h3 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
  font-weight: 700;
}

.summary-item p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.prose h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.prose h2::before {
  content: "";
  width: 4px;
  height: 1.1em;
  border-radius: 99px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  flex-shrink: 0;
}

.prose p,
.prose li {
  color: var(--text-muted);
}

.prose p { margin: 0 0 1rem; }
.prose strong { color: var(--text); }

.prose ul,
.prose ol {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
}

.prose li { margin-bottom: 0.5rem; }
.prose li::marker { color: var(--accent); }

.prose a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.prose a:hover { text-decoration: underline; }

.link-grid {
  display: grid;
  gap: 0.85rem;
  margin-top: 2rem;
}

.link-tile {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.2rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text);
  background: var(--surface-strong);
  border: 1px solid var(--stroke);
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
}

.link-tile:hover {
  transform: translateY(-2px);
  border-color: rgba(59, 158, 255, 0.35);
  box-shadow: 0 12px 32px rgba(59, 158, 255, 0.12);
}

.link-tile .tile-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, rgba(59, 158, 255, 0.2), rgba(140, 64, 217, 0.15));
  color: var(--accent);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.link-tile .tile-body h3 {
  margin: 0 0 0.15rem;
  font-size: 1rem;
  font-weight: 700;
}

.link-tile .tile-body p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.link-tile .chevron {
  margin-left: auto;
  color: var(--text-faint);
  font-size: 1.1rem;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
  margin: 1rem 0 1.5rem;
}

.platform-card {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--stroke);
  background: var(--surface-strong);
}

.platform-card h3 {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
  color: var(--text);
}

.platform-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.steps {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: grid;
  gap: 0.75rem;
}

.steps li {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--surface-strong);
  border: 1px solid var(--stroke);
  color: var(--text-muted);
}

.step-num {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  font-size: 0.82rem;
  font-weight: 800;
  color: white;
  background: linear-gradient(145deg, var(--accent), var(--accent-2));
}

.tip-box {
  margin: 1.5rem 0;
  padding: 1rem 1.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(52, 211, 153, 0.25);
  background: rgba(52, 211, 153, 0.08);
  color: var(--text-muted);
  font-size: 0.95rem;
}

.tip-box strong { color: var(--success); }

.site-footer {
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 0 1.25rem 2.5rem;
  text-align: center;
  color: var(--text-faint);
  font-size: 0.85rem;
}

.site-footer a {
  color: var(--text-muted);
  text-decoration: none;
}

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

.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 0.75rem;
}

@media (max-width: 540px) {
  .nav-links a:not(.active) { display: none; }
  .nav-links a.active { display: inline-flex; }
  .hero { padding-top: 0.5rem; }
}