:root {
  --background: #000000;
  --foreground: #f7f8fa;
  --muted: #9c9da3;
  --panel: #1c1d1f;
  --panel-soft: #24282a;
  --line: #3d4145;
  --green: #58ded8;
  --ink: #ffffff;
  --orange: #ff453f;
  --cyan: #5ccdf8;
  --teal-shadow: #092225;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

.hero {
  min-height: 92vh;
  padding: 24px clamp(18px, 4vw, 64px) 56px;
  background:
    radial-gradient(circle at 82% 22%, rgba(92, 205, 248, 0.22), transparent 18%),
    radial-gradient(circle at 18% 76%, rgba(88, 222, 216, 0.12), transparent 24%),
    linear-gradient(180deg, #000000 0%, #0b1012 54%, #000000 100%);
}

.nav {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1120px;
  min-height: 44px;
}

.brand {
  color: var(--ink);
  font-size: 0.98rem;
  font-weight: 760;
}

.nav-links {
  align-items: center;
  display: flex;
  gap: 20px;
  color: #8f9298;
  font-size: 0.92rem;
  font-weight: 640;
}

.nav-links a:hover,
.policy a:hover,
.support-band a:hover {
  color: var(--cyan);
}

.hero-grid {
  align-items: center;
  display: grid;
  gap: clamp(34px, 7vw, 96px);
  grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
  margin: 56px auto 0;
  max-width: 1120px;
}

.hero-copy {
  max-width: 640px;
}

.eyebrow {
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 820;
  letter-spacing: 0;
  margin: 0 0 14px;
  text-transform: uppercase;
}

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

h1 {
  color: var(--ink);
  font-size: clamp(3.2rem, 9vw, 7.4rem);
  letter-spacing: 0;
  line-height: 0.9;
  margin-bottom: 24px;
}

.lede {
  color: #b1b3ba;
  font-size: clamp(1.15rem, 2vw, 1.38rem);
  line-height: 1.55;
  margin-bottom: 32px;
  max-width: 560px;
}

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

.primary-button,
.secondary-button,
.policy-links a {
  align-items: center;
  border-radius: 8px;
  display: inline-flex;
  font-weight: 740;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
}

.primary-button {
  background: var(--green);
  box-shadow: 0 18px 36px rgba(88, 222, 216, 0.2);
  color: #051011;
}

.secondary-button,
.policy-links a {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  color: var(--foreground);
}

.phone {
  aspect-ratio: 0.58;
  background:
    radial-gradient(circle at 16% 12%, rgba(92, 205, 248, 0.14), transparent 22%),
    radial-gradient(circle at 86% 86%, rgba(255, 69, 63, 0.1), transparent 26%),
    linear-gradient(180deg, #151819, #080909);
  border: 10px solid #050505;
  border-radius: 32px;
  box-shadow: 0 34px 80px rgba(0, 0, 0, 0.62), 0 0 0 1px rgba(255, 255, 255, 0.08);
  color: white;
  overflow: hidden;
  padding: 26px 22px;
}

.phone-top {
  align-items: center;
  color: #8f9298;
  display: flex;
  font-size: 0.86rem;
  justify-content: space-between;
}

.phone-top strong {
  color: var(--green);
}

.gauge {
  align-items: center;
  border: 14px solid #333333;
  border-right-color: #3d3d3d;
  border-bottom-color: var(--orange);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin: 46px auto 30px;
  max-width: 260px;
  min-height: 260px;
  width: 92%;
}

.speed {
  font-size: 5.8rem;
  font-weight: 860;
  line-height: 0.85;
}

.unit {
  color: #a7a8ad;
  font-size: 1rem;
  font-weight: 720;
  margin-top: 12px;
}

.metrics {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr 1fr;
}

.metrics span,
.feature-card {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
}

.metrics span {
  background: linear-gradient(135deg, rgba(92, 205, 248, 0.12), rgba(88, 222, 216, 0.08));
  color: #a9abb1;
  display: grid;
  font-size: 0.76rem;
  gap: 6px;
  min-height: 76px;
  padding: 14px;
}

.metrics strong {
  color: white;
  font-size: 1rem;
}

.section,
.support-band {
  margin: 0 auto;
  max-width: 1120px;
  padding: 72px clamp(18px, 4vw, 64px);
}

.section-header {
  max-width: 620px;
}

.section h2,
.support-band h2 {
  color: var(--ink);
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
  margin-bottom: 18px;
}

.feature-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 32px;
}

.feature-card {
  background: linear-gradient(135deg, rgba(92, 205, 248, 0.08), rgba(255, 255, 255, 0.04)), var(--panel);
  border-color: var(--line);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.18);
  min-height: 210px;
  padding: 22px;
}

.feature-card h3 {
  font-size: 1.08rem;
  margin-bottom: 12px;
}

.feature-card p,
.support-band p,
.policy p {
  color: var(--muted);
  line-height: 1.65;
}

.support-band {
  align-items: end;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1fr) auto;
}

.support-band p {
  max-width: 660px;
}

.support-band a,
.policy a {
  color: var(--cyan);
  font-weight: 720;
}

.policy-links {
  display: grid;
  gap: 10px;
  min-width: 190px;
}

.policy-shell {
  min-height: 100vh;
  padding: 24px clamp(18px, 4vw, 64px) 80px;
  background:
    radial-gradient(circle at 80% 12%, rgba(92, 205, 248, 0.16), transparent 22%),
    radial-gradient(circle at 20% 88%, rgba(88, 222, 216, 0.1), transparent 24%),
    #000000;
}

.policy-nav {
  margin-bottom: 56px;
}

.policy {
  background: linear-gradient(135deg, rgba(92, 205, 248, 0.07), rgba(255, 255, 255, 0.03)), var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.45);
  margin: 0 auto;
  max-width: 820px;
  padding: clamp(28px, 6vw, 64px);
}

.policy h1 {
  font-size: clamp(2.5rem, 6vw, 4.4rem);
  line-height: 0.95;
  margin-bottom: 28px;
}

.policy h2 {
  color: var(--ink);
  font-size: 1.2rem;
  margin: 30px 0 8px;
}

.policy p {
  font-size: 1rem;
}

@media (max-width: 900px) {
  .hero-grid,
  .support-band {
    grid-template-columns: 1fr;
  }

  .phone {
    justify-self: center;
    max-width: 360px;
    width: 100%;
  }

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

@media (max-width: 620px) {
  .hero {
    min-height: auto;
    padding-bottom: 36px;
  }

  .nav {
    align-items: flex-start;
    gap: 16px;
  }

  .nav-links {
    gap: 12px;
  }

  .hero-grid {
    margin-top: 36px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: auto;
  }

  .phone {
    border-radius: 26px;
  }

  .gauge {
    min-height: 220px;
  }

  .speed {
    font-size: 4.8rem;
  }
}