:root {
  color-scheme: dark;
  --bg: #05070a;
  --bg-soft: #0b0f16;
  --panel: #111722;
  --panel-strong: #161e2b;
  --text: #f5f7fb;
  --muted: #aab4c3;
  --subtle: #738094;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #7dd3fc;
  --accent-strong: #38bdf8;
  --radius: 8px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.14), transparent 34rem),
    linear-gradient(180deg, #070a0f 0%, var(--bg) 42rem);
  color: var(--text);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--accent);
}

p,
ul,
ol {
  margin: 0;
}

ul,
ol {
  padding-left: 1.25rem;
}

.site-shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(5, 7, 10, 0.78);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid rgba(125, 211, 252, 0.42);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(125, 211, 252, 0.22), rgba(255, 255, 255, 0.04));
  color: var(--accent);
  font-size: 0.9rem;
}

.nav-links,
.footer-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero {
  padding: 88px 0 64px;
}

.hero-narrow {
  max-width: 820px;
}

.eyebrow {
  margin-bottom: 14px;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  max-width: 920px;
  font-size: clamp(3rem, 8vw, 6.25rem);
  font-weight: 760;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 730;
}

h3 {
  font-size: 1.08rem;
  font-weight: 720;
}

.subtitle {
  margin-top: 18px;
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.35rem);
}

.section {
  padding: 52px 0;
}

.section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 22px;
  gap: 20px;
}

.section-kicker {
  color: var(--subtle);
  font-size: 0.95rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  min-height: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.025));
  box-shadow: var(--shadow);
}

.card-link {
  display: block;
  transition: border-color 160ms ease, transform 160ms ease, background 160ms ease;
}

.card-link:hover {
  border-color: rgba(125, 211, 252, 0.55);
  background: linear-gradient(180deg, rgba(125, 211, 252, 0.12), rgba(255, 255, 255, 0.035));
  color: var(--text);
  transform: translateY(-2px);
}

.card-body {
  padding: 24px;
}

.card p,
.feature p,
.policy-block p,
.guide-card p {
  margin-top: 10px;
  color: var(--muted);
}

.product-label {
  color: var(--accent);
  font-weight: 700;
}

.arrow {
  margin-top: 22px;
  color: var(--accent);
  font-weight: 700;
}

.feature {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(17, 23, 34, 0.62);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 30px;
}

.button,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 8px;
  font-weight: 700;
}

.button {
  border: 1px solid rgba(125, 211, 252, 0.55);
  background: rgba(125, 211, 252, 0.13);
  color: var(--text);
  padding: 0 18px;
}

.text-link {
  color: var(--muted);
  padding: 0 10px;
}

.content {
  max-width: 860px;
  padding-bottom: 72px;
}

.content h2 {
  margin-top: 42px;
  font-size: clamp(1.55rem, 3vw, 2.25rem);
}

.content h3 {
  margin-top: 28px;
}

.content p,
.content li {
  color: var(--muted);
}

.content p {
  margin-top: 14px;
}

.content ul {
  margin-top: 14px;
}

.policy-block,
.guide-card {
  margin-top: 16px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(17, 23, 34, 0.58);
}

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

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(5, 7, 10, 0.72);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0;
  color: var(--subtle);
  font-size: 0.95rem;
}

@media (max-width: 760px) {
  .site-shell {
    width: min(100% - 28px, 1120px);
  }

  .nav,
  .footer-inner,
  .section-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    min-height: auto;
    padding: 16px 0;
  }

  .nav-links,
  .footer-links {
    flex-wrap: wrap;
    gap: 12px 16px;
  }

  .hero {
    padding: 64px 0 42px;
  }

  .section {
    padding: 38px 0;
  }

  .grid,
  .grid.two {
    grid-template-columns: 1fr;
  }

  .card-body,
  .feature,
  .policy-block,
  .guide-card {
    padding: 20px;
  }
}