:root {
  color-scheme: dark;
  --bg: #090b12;
  --surface: #111522;
  --surface-strong: #171c2c;
  --text: #f6f7fb;
  --muted: #a5adc2;
  --line: rgba(255, 255, 255, 0.1);
  --violet: #9b72ff;
  --cyan: #45d8e8;
  --pink: #ff709f;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 82% 8%, rgba(111, 75, 214, 0.18), transparent 27rem),
    radial-gradient(circle at 8% 40%, rgba(69, 216, 232, 0.08), transparent 24rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-header,
footer {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header {
  min-height: 84px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  gap: 11px;
  align-items: center;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 760;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 11px;
  background: linear-gradient(145deg, rgba(155, 114, 255, 0.9), rgba(69, 216, 232, 0.68));
  box-shadow: 0 10px 32px rgba(115, 86, 211, 0.28);
  font-weight: 850;
}

.site-header nav,
footer div {
  display: flex;
  gap: 28px;
}

.site-header nav a,
footer a {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 650;
  text-decoration: none;
}

.site-header nav a:hover,
.site-header nav a:focus-visible,
footer a:hover,
footer a:focus-visible {
  color: var(--text);
}

.hero,
.section,
.safety-section,
.closing-panel {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.hero {
  display: grid;
  min-height: 690px;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
  gap: 72px;
  align-items: center;
  padding-block: 90px;
}

.eyebrow {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 0 0 22px;
  color: #ccd1df;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow span {
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
}

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

.hero h1 {
  max-width: 760px;
  margin-bottom: 26px;
  font-size: clamp(3.6rem, 8vw, 7.1rem);
  font-weight: 820;
  letter-spacing: -0.072em;
  line-height: 0.91;
}

.hero h1 em {
  color: transparent;
  background: linear-gradient(90deg, var(--violet), var(--pink) 50%, var(--cyan));
  background-clip: text;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
}

.hero-lede {
  max-width: 650px;
  color: var(--muted);
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0 21px;
  font-size: 0.88rem;
  font-weight: 760;
  text-decoration: none;
}

.button-primary {
  border-color: transparent;
  background: var(--text);
  color: #0a0c12;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.035);
  color: var(--text);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.availability {
  margin-top: 16px;
  color: #747d93;
  font-size: 0.78rem;
}

.signal-card {
  position: relative;
  display: grid;
  min-height: 480px;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 38px;
  background:
    linear-gradient(150deg, rgba(155, 114, 255, 0.16), transparent 45%),
    linear-gradient(330deg, rgba(69, 216, 232, 0.1), transparent 45%),
    rgba(255, 255, 255, 0.025);
}

.signal-card::after {
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 28px;
  content: "";
}

.signal-orbit {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 50%;
}

.orbit-one {
  width: 360px;
  height: 360px;
}

.orbit-two {
  width: 260px;
  height: 260px;
  border-color: rgba(155, 114, 255, 0.2);
}

.signal-core {
  z-index: 1;
  display: flex;
  align-items: center;
  flex-direction: column;
  text-align: center;
}

.signal-core strong {
  margin-top: 25px;
  font-size: 1.1rem;
}

.signal-core span {
  color: var(--muted);
  font-size: 0.85rem;
}

.wave {
  display: flex;
  height: 90px;
  gap: 7px;
  align-items: center;
}

.wave i {
  display: block;
  width: 6px;
  height: 25%;
  border-radius: 10px;
  background: linear-gradient(180deg, var(--pink), var(--violet), var(--cyan));
}

.wave i:nth-child(2),
.wave i:nth-child(8) { height: 52%; }
.wave i:nth-child(3),
.wave i:nth-child(7) { height: 78%; }
.wave i:nth-child(4),
.wave i:nth-child(6) { height: 100%; }
.wave i:nth-child(5) { height: 62%; }

.section {
  padding-block: 120px;
}

.section-heading {
  display: grid;
  grid-template-columns: 0.8fr 1.3fr 1fr;
  gap: 36px;
  align-items: start;
}

.section-heading h2,
.safety-section h2,
.closing-panel h2 {
  margin-bottom: 0;
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  letter-spacing: -0.055em;
  line-height: 1;
}

.section-heading > p:last-child,
.safety-list p {
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 70px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--line);
}

.feature-card {
  min-height: 280px;
  padding: 34px;
  background: var(--surface);
}

.feature-card h3 {
  margin-top: 70px;
  margin-bottom: 12px;
  font-size: 1.28rem;
}

.feature-card p {
  color: var(--muted);
}

.feature-number {
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.safety-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding-block: 120px;
  border-top: 1px solid var(--line);
}

.safety-list {
  display: grid;
  gap: 30px;
}

.safety-list div {
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.safety-list strong {
  font-size: 1.08rem;
}

.safety-list p {
  margin: 8px 0 0;
}

.closing-panel {
  margin-block: 70px 130px;
  padding: clamp(36px, 7vw, 80px);
  border: 1px solid rgba(155, 114, 255, 0.24);
  border-radius: 30px;
  background:
    radial-gradient(circle at 100% 0, rgba(69, 216, 232, 0.12), transparent 40%),
    linear-gradient(135deg, rgba(155, 114, 255, 0.13), rgba(255, 255, 255, 0.025));
}

.closing-panel h2 {
  max-width: 850px;
  margin-bottom: 34px;
}

.text-link {
  color: var(--cyan);
  font-weight: 780;
  text-decoration: none;
}

.text-link span {
  display: inline-block;
  margin-left: 6px;
}

footer {
  min-height: 120px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
}

footer p {
  margin: 0;
}

.brand-small {
  font-size: 0.92rem;
}

.brand-small .brand-mark {
  width: 29px;
  height: 29px;
  border-radius: 9px;
  font-size: 0.78rem;
}

.policy-shell {
  display: grid;
  width: min(calc(100% - 40px), var(--max));
  grid-template-columns: 290px minmax(0, 760px);
  gap: 96px;
  margin: 90px auto 140px;
  justify-content: space-between;
}

.policy-aside {
  position: sticky;
  top: 40px;
  height: fit-content;
}

.policy-aside h1 {
  margin-bottom: 8px;
  font-size: 2.8rem;
  letter-spacing: -0.055em;
  line-height: 1;
}

.policy-aside > p:not(.eyebrow) {
  color: var(--muted);
  font-size: 0.82rem;
}

.policy-aside nav {
  display: grid;
  gap: 11px;
  margin-top: 38px;
}

.policy-aside nav a {
  color: var(--muted);
  font-size: 0.82rem;
  text-decoration: none;
}

.policy-content {
  color: #d7dbe7;
}

.policy-content section {
  padding: 15px 0 46px;
  scroll-margin-top: 30px;
}

.policy-content section + section {
  border-top: 1px solid var(--line);
  padding-top: 46px;
}

.policy-content h2 {
  margin-bottom: 20px;
  color: var(--text);
  font-size: 1.62rem;
  letter-spacing: -0.03em;
}

.policy-content h3 {
  margin: 28px 0 8px;
  color: var(--text);
  font-size: 1rem;
}

.policy-content p,
.policy-content li {
  color: #b8bfd0;
}

.policy-content li + li {
  margin-top: 8px;
}

.policy-content code {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 6px;
  background: var(--surface-strong);
  color: var(--cyan);
}

.policy-intro > p:first-child {
  color: var(--text);
  font-size: 1.28rem;
}

.policy-callout {
  margin: 30px 0;
  border-left: 3px solid var(--violet);
  border-radius: 0 12px 12px 0;
  padding: 22px 25px;
  background: rgba(155, 114, 255, 0.09);
}

.policy-callout strong {
  color: var(--text);
}

.policy-callout p {
  margin: 6px 0 0;
}

.policy-warning {
  border-left-color: var(--pink);
  background: rgba(255, 112, 159, 0.08);
}

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

  .signal-card {
    min-height: 400px;
  }

  .section-heading,
  .safety-section {
    grid-template-columns: 1fr;
  }

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

  .policy-shell {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .policy-aside {
    position: static;
  }

  .policy-aside nav {
    display: none;
  }
}

@media (max-width: 650px) {
  .site-header {
    min-height: 72px;
  }

  .site-header nav {
    gap: 16px;
  }

  .site-header nav a:not(:last-child) {
    display: none;
  }

  .hero {
    min-height: auto;
    gap: 50px;
    padding-block: 70px;
  }

  .hero h1 {
    font-size: clamp(3.25rem, 18vw, 5.2rem);
  }

  .signal-card {
    min-height: 330px;
  }

  .orbit-one {
    width: 280px;
    height: 280px;
  }

  .orbit-two {
    width: 205px;
    height: 205px;
  }

  .section,
  .safety-section {
    padding-block: 85px;
  }

  footer {
    flex-wrap: wrap;
    gap: 12px;
    padding-block: 28px;
  }

  footer p {
    order: 3;
    width: 100%;
  }
}

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

  .button {
    transition: none;
  }
}