:root {
  --bg: #f6f8ff;
  --panel: rgba(255, 255, 255, 0.78);
  --text: rgba(14, 20, 36, 0.92);
  --muted: rgba(14, 20, 36, 0.68);
  --border: rgba(14, 20, 36, 0.14);
  --brand: #73fbd3;
  --brand2: #7aa2ff;
  --shadow: 0 18px 60px rgba(12, 18, 32, 0.14);
  --radius: 18px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 12% 10%, rgba(122, 162, 255, 0.22), transparent 55%),
    radial-gradient(1000px 600px at 88% 18%, rgba(115, 251, 211, 0.2), transparent 55%),
    radial-gradient(900px 700px at 50% 92%, rgba(14, 20, 36, 0.06), transparent 60%),
    linear-gradient(180deg, #ffffff, var(--bg));
}

a { color: inherit; }
a:focus-visible, button:focus-visible {
  outline: 2px solid rgba(115, 251, 211, 0.75);
  outline-offset: 3px;
  border-radius: 10px;
}

.container {
  max-width: 1040px;
  margin: 0 auto;
  padding: 28px 20px 70px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 680;
  letter-spacing: 0.2px;
}

.mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(115, 251, 211, 0.95), rgba(122, 162, 255, 0.95));
  box-shadow: 0 12px 35px rgba(122, 162, 255, 0.22);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid transparent;
}
.nav-links a:hover {
  color: var(--text);
  border-color: rgba(14, 20, 36, 0.14);
  background: rgba(14, 20, 36, 0.04);
}
.nav-links a[aria-current="page"] {
  color: var(--text);
  border-color: rgba(122, 162, 255, 0.32);
  background: rgba(122, 162, 255, 0.12);
}

.hero {
  margin-top: 22px;
  padding: 34px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0.64));
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(14, 20, 36, 0.14);
  background: rgba(255, 255, 255, 0.72);
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(115, 251, 211, 0.18);
}

h1 {
  margin: 14px 0 10px;
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.04;
  letter-spacing: -0.5px;
}

.lead {
  max-width: 68ch;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.6;
  margin: 10px 0 0;
}

.grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.card {
  grid-column: span 6;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px;
  background: rgba(255, 255, 255, 0.72);
}
.card h2 {
  margin: 0 0 8px;
  font-size: 16px;
  letter-spacing: 0.2px;
}
.card p, .card li {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}
.card ul { margin: 10px 0 0; padding-left: 18px; }
.card li { margin: 6px 0; }

.cta-row {
  margin-top: 18px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(14, 20, 36, 0.14);
  text-decoration: none;
  color: var(--text);
  background: rgba(255, 255, 255, 0.78);
}
.button.primary {
  border-color: rgba(122, 162, 255, 0.34);
  background: linear-gradient(135deg, rgba(115, 251, 211, 0.22), rgba(122, 162, 255, 0.2));
}
.button:hover {
  transform: translateY(-1px);
  transition: transform 140ms ease;
}

.content {
  margin-top: 22px;
  padding: 26px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.74);
}
.content h1 { font-size: clamp(28px, 4vw, 40px); }
.content h2 { margin-top: 22px; font-size: 18px; }
.content p, .content li { color: var(--muted); line-height: 1.7; }
.content ul { padding-left: 18px; }

.footer {
  margin-top: 18px;
  color: rgba(14, 20, 36, 0.58);
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 4px;
}

@media (max-width: 860px) {
  .card { grid-column: span 12; }
}