:root {
  color-scheme: light;
  --stan-ink: #010d22;
  --stan-midnight: #06182f;
  --stan-blue: #1847c8;
  --stan-aqua: #2cceff;
  --stan-ice: #f7fbfe;
  --signal-lime: #6ef28a;
  --text-muted: #52647a;
  --border: #dde6ef;
  --primary-hover: #123aa8;
  --surface: #ffffff;
  --surface-subtle: #f1f6fb;
  --radius-lg: 28px;
  --radius-md: 18px;
  --shadow: 0 24px 70px rgba(1, 13, 34, 0.1);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--stan-ice);
  color: var(--stan-ink);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--stan-ice);
  color: var(--stan-ink);
  line-height: 1.6;
}

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

a:focus-visible {
  outline: 3px solid var(--stan-aqua);
  outline-offset: 4px;
  border-radius: 8px;
}

.site-header,
main,
.site-footer {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  font-size: 1.15rem;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.brand img {
  display: block;
  border-radius: 10px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--text-muted);
  font-size: 0.94rem;
  font-weight: 650;
}

.nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.nav a:hover {
  color: var(--stan-ink);
}

.hero {
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  align-items: center;
  gap: clamp(42px, 8vw, 96px);
  padding: 92px 0 110px;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--stan-blue);
  font-size: 0.79rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.eyebrow-light {
  color: var(--stan-aqua);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(3.5rem, 8vw, 6.8rem);
  line-height: 0.96;
  letter-spacing: -0.065em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.3rem);
  line-height: 1.03;
  letter-spacing: -0.045em;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.25rem;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.hero-lead {
  max-width: 650px;
  margin-bottom: 34px;
  color: var(--text-muted);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 12px;
  font-weight: 750;
}

.button-primary {
  background: var(--stan-blue);
  color: white;
  box-shadow: 0 12px 30px rgba(24, 71, 200, 0.2);
}

.button-primary:hover {
  background: var(--primary-hover);
}

.availability {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 650;
}

.decision-card {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 46px);
  border-radius: var(--radius-lg);
  background: var(--stan-ink);
  color: white;
  box-shadow: var(--shadow);
}

.decision-card::before {
  content: "";
  position: absolute;
  width: 270px;
  height: 270px;
  right: -110px;
  top: -120px;
  border: 1px solid rgba(44, 206, 255, 0.35);
  border-radius: 50%;
}

.decision-card::after {
  content: "";
  position: absolute;
  width: 170px;
  height: 170px;
  right: -72px;
  top: -70px;
  border: 1px solid rgba(44, 206, 255, 0.22);
  border-radius: 50%;
}

.decision-card > * {
  position: relative;
  z-index: 1;
}

.decision-card h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.decision-card > p:not(.decision-kicker) {
  color: var(--surface-subtle);
}

.decision-kicker {
  margin-bottom: 26px;
  color: var(--stan-aqua);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.decision-rule {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  font-size: 0.94rem;
  font-weight: 650;
}

.rule-dot {
  flex: 0 0 10px;
  width: 10px;
  height: 10px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--signal-lime);
  box-shadow: 0 0 0 5px rgba(110, 242, 138, 0.1);
}

.section {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 52px;
}

.section-heading > p:last-child {
  color: var(--text-muted);
  font-size: 1.08rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.step {
  min-height: 240px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.step p {
  margin-bottom: 0;
  color: var(--text-muted);
}

.step-number {
  display: block;
  margin-bottom: 48px;
  color: var(--stan-blue);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.evidence {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(44px, 8vw, 100px);
  align-items: start;
}

.evidence .section-heading {
  margin-bottom: 0;
}

.check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--border);
}

.check-list li {
  display: grid;
  grid-template-columns: minmax(130px, 0.5fr) minmax(0, 1fr);
  gap: 28px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.check-list strong {
  font-size: 0.97rem;
}

.check-list span {
  color: var(--text-muted);
}

.trust {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(44px, 8vw, 100px);
}

.trust-copy {
  color: var(--text-muted);
  font-size: 1.08rem;
}

.trust-copy p:last-child {
  margin-bottom: 0;
}

.install {
  margin: 28px 0 90px;
  padding: clamp(34px, 6vw, 64px);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 34px;
  border-radius: var(--radius-lg);
  background: var(--stan-midnight);
  color: white;
}

.install > div {
  max-width: 720px;
}

.install h2 {
  margin-bottom: 16px;
}

.install p:last-child {
  margin-bottom: 0;
  color: var(--surface-subtle);
}

.status-pill {
  flex: 0 0 auto;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: var(--surface-subtle);
  font-size: 0.85rem;
  font-weight: 750;
  white-space: nowrap;
}

.site-footer {
  min-height: 130px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
}

.brand-footer {
  color: var(--stan-ink);
}

.site-footer p {
  max-width: 560px;
  margin-bottom: 0;
  text-align: right;
  font-size: 0.88rem;
}

@media (max-width: 860px) {
  .nav {
    display: none;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 70px 0 88px;
  }

  .steps,
  .evidence,
  .trust {
    grid-template-columns: 1fr;
  }

  .evidence,
  .trust {
    gap: 32px;
  }

  .install {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 580px) {
  .site-header,
  main,
  .site-footer {
    width: min(100% - 28px, 1180px);
  }

  .site-header {
    min-height: 72px;
  }

  h1 {
    font-size: clamp(3.2rem, 16vw, 4.6rem);
  }

  .hero {
    padding-top: 52px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .availability {
    width: 100%;
    text-align: center;
  }

  .section {
    padding: 76px 0;
  }

  .check-list li {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .site-footer {
    min-height: 170px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }

  .site-footer p {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}