:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-muted: #f1f5f9;
  --ink: #0f172a;
  --muted: #475569;
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --success: #16a34a;
  --alert: #dc2626;
  --radius-lg: 20px;
  --radius-md: 14px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, sans-serif;
}

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

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand.small {
  font-weight: 600;
  font-size: 14px;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  padding: 16px 0;
}

.nav .links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav .links a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}

.nav .links a:hover {
  color: var(--brand);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
  background: var(--brand);
  color: #ffffff;
  box-shadow: 0 16px 32px -20px rgba(37, 99, 235, 0.6);
  border: 1px solid var(--brand-dark);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 40px -22px rgba(37, 99, 235, 0.5);
  background: var(--brand-dark);
}

.btn.outline {
  background: transparent;
  color: var(--brand-dark);
  border: 1px solid rgba(15, 23, 42, 0.12);
  box-shadow: none;
}

.btn.outline:hover {
  background: rgba(37, 99, 235, 0.08);
  color: var(--brand-dark);
}

.btn.small {
  padding: 8px 14px;
  font-size: 14px;
}

.hero {
  padding: 96px 0 80px;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.09), rgba(248, 250, 252, 0));
}

.grid2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
  align-items: center;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero h1 {
  margin: 0;
  font-size: 44px;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.lead {
  color: var(--muted);
  font-size: 19px;
  margin: 0;
}

.hero .cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.ticks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.ticks li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 15px;
}

.ticks li::before {
  content: "✓";
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.12);
  color: var(--brand-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

.hero-card {
  display: flex;
  justify-content: center;
}

.hero-metric {
  width: 100%;
  max-width: 360px;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: 0 32px 80px -40px rgba(15, 23, 42, 0.35);
  border: 1px solid rgba(15, 23, 42, 0.08);
  display: grid;
  gap: 18px;
}

.hero-metric .label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: rgba(15, 23, 42, 0.55);
}

.metric-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.metric-value {
  font-size: 34px;
  font-weight: 700;
  color: var(--ink);
}

.metric-value.success {
  color: var(--success);
}

.metric-value.alert {
  color: var(--alert);
}

.metric-caption {
  font-size: 15px;
  color: var(--muted);
}

.hero-metric .divider {
  height: 1px;
  background: rgba(15, 23, 42, 0.08);
  width: 100%;
}

.metric-footnote {
  font-size: 14px;
  color: rgba(15, 23, 42, 0.6);
}

.features {
  padding: 80px 0 20px;
}

.features h2 {
  margin: 0 0 12px;
  font-size: 32px;
}

.section-lead {
  margin: 0 0 32px;
  color: var(--muted);
  max-width: 720px;
}

.grid3 {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 28px 60px -44px rgba(15, 23, 42, 0.4);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 32px 80px -42px rgba(15, 23, 42, 0.35);
}

.card h3 {
  margin: 0 0 12px;
  font-size: 20px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.workflow {
  padding: 72px 0;
  background: var(--surface-muted);
  border-top: 1px solid rgba(15, 23, 42, 0.05);
  border-bottom: 1px solid rgba(15, 23, 42, 0.05);
}

.workflow h2 {
  margin: 0 0 32px;
  font-size: 32px;
}

.steps {
  display: grid;
  gap: 20px;
}

.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: start;
}

.step-number {
  font-size: 14px;
  font-weight: 700;
  color: var(--brand);
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.12);
}

.step h3 {
  margin: 0 0 4px;
  font-size: 20px;
}

.summary {
  padding: 80px 0;
}

.bullet-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.bullet-list li {
  position: relative;
  padding-left: 26px;
  color: var(--muted);
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.evidence {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid rgba(15, 23, 42, 0.07);
  box-shadow: 0 28px 60px -50px rgba(15, 23, 42, 0.4);
}

.evidence-title {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: rgba(71, 85, 105, 0.8);
  margin-bottom: 16px;
}

.evidence ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.cta-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 32px 90px -50px rgba(15, 23, 42, 0.45);
  display: grid;
  gap: 18px;
}

.cta-card h2 {
  margin: 0;
  font-size: 32px;
}

.cta-card p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.footer {
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  padding: 24px 0;
  background: #ffffff;
}

.footnote {
  color: rgba(15, 23, 42, 0.5);
  font-size: 14px;
}

@media (max-width: 960px) {
  .grid2 {
    grid-template-columns: 1fr;
  }

  .nav .links {
    display: none;
  }
}

@media (max-width: 720px) {
  .grid3 {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 72px 0 64px;
  }

  .hero h1 {
    font-size: 36px;
  }

  .cta-card {
    padding: 32px;
  }
}