:root {
  --bg: #eef7ff;
  --bg-accent: #d9ecff;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-strong: #ffffff;
  --text: #17324a;
  --muted: #567288;
  --primary: #2e86de;
  --primary-deep: #1f6fbe;
  --border: rgba(46, 134, 222, 0.16);
  --shadow: 0 18px 50px rgba(23, 50, 74, 0.08);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --max-width: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body {
  margin: 0;
  font-family: "SF Pro Text", "Inter", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(46, 134, 222, 0.22), transparent 30%),
    radial-gradient(circle at top right, rgba(103, 178, 255, 0.2), transparent 28%),
    linear-gradient(180deg, var(--bg), #f9fcff 55%, #ffffff);
  min-height: 100vh;
}

a {
  color: var(--primary-deep);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.site-header,
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-header {
  padding: 12px 0 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: white;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), #67b2ff);
  box-shadow: 0 12px 30px rgba(46, 134, 222, 0.28);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nav a {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
}

.hero,
.content-card {
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero {
  padding: 36px;
  border-radius: var(--radius-xl);
  margin-bottom: 22px;
}

.hero-eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--primary-deep);
}

.hero h1 {
  margin: 12px 0 12px;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.02;
}

.hero p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.65;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), #67b2ff);
  color: white;
  font-weight: 700;
  box-shadow: 0 12px 24px rgba(46, 134, 222, 0.24);
}

.button-link.secondary {
  background: var(--surface-strong);
  color: var(--primary-deep);
  border: 1px solid var(--border);
  box-shadow: none;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.content-card {
  border-radius: var(--radius-lg);
  padding: 26px;
}

.content-card h2,
.content-card h3 {
  margin-top: 0;
}

.content-card p,
.content-card li {
  color: var(--muted);
  line-height: 1.7;
}

.content-card ul {
  padding-left: 20px;
  margin-bottom: 0;
}

.content-stack {
  display: grid;
  gap: 18px;
}

.section-label {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--primary-deep);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.lede {
  font-size: 1.05rem;
}

.muted-note {
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

@media (max-width: 900px) {
  .grid.cols-3 {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 28px;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(calc(100% - 20px), var(--max-width));
    padding-top: 18px;
  }

  .site-header,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .content-card {
    padding: 22px;
  }
}