:root {
  --bg: #ffffff;
  --bg-alt: #f6f8fc;
  --ink: #0a1f44;
  --ink-soft: #324968;
  --muted: #5b6b85;
  --line: #e3e8f1;
  --accent: #1f6feb;
  --accent-deep: #0a1f44;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(10, 31, 68, 0.08);
  --shadow-lg: 0 20px 50px rgba(10, 31, 68, 0.12);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* ====== Header ====== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(150%) blur(10px);
  -webkit-backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #0a1f44 0%, #1f6feb 100%);
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.02em;
}
.brand-mark.small { width: 28px; height: 28px; font-size: 12px; }
.brand-name { font-size: 16px; }
.brand-suffix { color: var(--muted); font-weight: 500; }
.nav-links {
  display: flex;
  gap: 28px;
}
.nav-links a {
  color: var(--ink-soft);
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--accent); }

/* ====== Hero ====== */
.hero {
  position: relative;
  padding: 96px 0 88px;
  background:
    radial-gradient(1100px 460px at 80% -10%, rgba(31, 111, 235, 0.10), transparent 60%),
    radial-gradient(900px 400px at -10% 30%, rgba(10, 31, 68, 0.06), transparent 60%),
    var(--bg);
  overflow: hidden;
}
.hero-inner { position: relative; max-width: 880px; }
.eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(31, 111, 235, 0.08);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 800;
  margin: 22px 0 18px;
  color: var(--accent-deep);
}
.lede {
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--ink-soft);
  max-width: 720px;
}
.cta-row {
  margin-top: 32px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent-deep);
  color: #fff;
  box-shadow: 0 8px 20px rgba(10, 31, 68, 0.22);
}
.btn-primary:hover { transform: translateY(-1px); background: #0d2a5c; }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--ink); }
.btn-lg { padding: 16px 26px; font-size: 16px; }

/* ====== Sections ====== */
.section {
  padding: 96px 0;
  border-top: 1px solid var(--line);
}
.section-alt { background: var(--bg-alt); }
.section-title {
  font-size: clamp(28px, 3.4vw, 40px);
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0 0 14px;
  color: var(--accent-deep);
}
.section-sub {
  color: var(--muted);
  font-size: 17px;
  margin: 0 0 48px;
}
.center { text-align: center; }
.section-sub.center { max-width: 620px; margin-left: auto; margin-right: auto; }

.grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: start;
}
.grid-2 p { color: var(--ink-soft); font-size: 16.5px; }

.stats {
  display: grid;
  gap: 16px;
}
.stat {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow);
}
.stat-num {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-deep);
}
.stat-label {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.01em;
}

/* ====== Cards ====== */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(31, 111, 235, 0.25);
}
.card h3 {
  margin: 14px 0 8px;
  font-size: 19px;
  font-weight: 700;
  color: var(--accent-deep);
  letter-spacing: -0.01em;
}
.card p { color: var(--ink-soft); margin: 0; font-size: 15.5px; }
.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(31, 111, 235, 0.12), rgba(10, 31, 68, 0.06));
  color: var(--accent);
  display: grid;
  place-items: center;
}
.card-icon svg { width: 22px; height: 22px; }

/* ====== Steps ====== */
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.steps li {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}
.step-num {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.08em;
}
.steps h3 {
  margin: 8px 0 6px;
  font-size: 18px;
  color: var(--accent-deep);
}
.steps p { color: var(--ink-soft); font-size: 15px; margin: 0; }

/* ====== CTA ====== */
.section-cta { background: var(--accent-deep); }
.section-cta .section-title { color: #fff; }
.cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-card h2 {
  color: #fff;
  font-size: clamp(26px, 3vw, 34px);
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  font-weight: 700;
}
.cta-card p { color: rgba(255, 255, 255, 0.78); margin: 0; font-size: 17px; }
.cta-card .btn-primary {
  background: #fff;
  color: var(--accent-deep);
}
.cta-card .btn-primary:hover { background: #eef3ff; }

/* ====== Footer ====== */
.site-footer {
  padding: 28px 0;
  background: #061633;
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-inner > div { display: flex; align-items: center; gap: 10px; }
.footer-meta { color: rgba(255, 255, 255, 0.55); }

/* ====== Responsive ====== */
@media (max-width: 820px) {
  .nav-links { display: none; }
  .hero { padding: 72px 0 64px; }
  .section { padding: 72px 0; }
  .grid-2 { grid-template-columns: 1fr; gap: 32px; }
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
  .brand-name { font-size: 14px; }
}