:root {
  color-scheme: light;
  --bg: #f7f4ee;
  --surface: #ffffff;
  --surface-soft: #ebe6dc;
  --ink: #151925;
  --muted: #5e6371;
  --line: rgba(21, 25, 37, 0.12);
  --teal: #00d9dd;
  --violet: #9b56ff;
  --night: #0b1122;
  --shadow: 0 24px 80px rgba(30, 34, 46, 0.16);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 4vw, 56px);
  background: rgba(247, 244, 238, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(18px);
}

.brand,
.nav-links,
.footer-links,
.hero-actions {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 750;
  text-decoration: none;
}

.brand img,
.cta-inner img {
  border-radius: 22%;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
}

.nav-links,
.footer-links {
  gap: clamp(14px, 3vw, 28px);
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 650;
}

.nav-links a,
.footer-links a,
.text-link {
  text-decoration-color: transparent;
  text-underline-offset: 0.3em;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}

.nav-links a:hover,
.footer-links a:hover,
.text-link:hover {
  color: var(--ink);
  text-decoration-color: currentColor;
}

.hero {
  position: relative;
  min-height: 86svh;
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 118px clamp(20px, 6vw, 72px) 72px;
  background: var(--night);
  color: #ffffff;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(11, 17, 34, 0.98) 0%, rgba(11, 17, 34, 0.86) 42%, rgba(11, 17, 34, 0.36) 100%),
    radial-gradient(circle at 75% 70%, rgba(155, 86, 255, 0.32), transparent 32%),
    radial-gradient(circle at 56% 34%, rgba(0, 217, 221, 0.22), transparent 28%);
  z-index: 1;
}

.hero-logo {
  position: absolute;
  z-index: 0;
  right: max(-14vw, -160px);
  top: 50%;
  width: min(70vw, 840px);
  transform: translateY(-48%);
  border-radius: 28%;
  opacity: 0.92;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.policy h1 {
  margin: 0;
  font-size: 8.4rem;
  line-height: 0.92;
}

.hero-lede {
  max-width: 640px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.35rem;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 20px;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: linear-gradient(135deg, var(--teal), var(--violet));
  color: #ffffff;
  box-shadow: 0 16px 40px rgba(0, 217, 221, 0.22);
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.32);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.button[aria-disabled="true"] {
  cursor: default;
}

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

.intro-band,
.features,
.privacy-band,
.cta-band {
  padding: clamp(58px, 9vw, 110px) 0;
}

.intro-band {
  background: var(--surface);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(30px, 6vw, 80px);
  align-items: start;
}

h2 {
  margin: 0;
  font-size: 3.65rem;
  line-height: 1.02;
}

h3 {
  margin: 18px 0 10px;
  font-size: 1.2rem;
  line-height: 1.2;
}

p {
  color: var(--muted);
  font-size: 1.02rem;
}

.features {
  background: var(--bg);
}

.section-heading {
  max-width: 720px;
  margin-bottom: clamp(30px, 5vw, 52px);
}

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

.feature-card {
  min-height: 280px;
  padding: 26px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 44px rgba(30, 34, 46, 0.07);
}

.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: #ffffff;
  background: var(--night);
  border-radius: 50%;
  font-weight: 800;
}

.privacy-band {
  background: var(--surface-soft);
}

.privacy-copy p {
  margin-top: 0;
}

.text-link {
  color: var(--ink);
  font-weight: 800;
}

.cta-band {
  background: var(--surface);
}

.cta-inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: clamp(18px, 4vw, 34px);
  align-items: center;
  padding: 34px 0;
}

.cta-inner p {
  margin-bottom: 0;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 30px clamp(20px, 4vw, 56px);
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 0;
  font-size: 0.95rem;
}

.policy-page {
  padding: 130px 20px 72px;
}

.policy {
  width: min(840px, 100%);
  margin: 0 auto;
  padding: clamp(26px, 5vw, 56px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.policy h1 {
  color: var(--ink);
  font-size: 4.8rem;
}

.policy-updated {
  margin: 18px 0 42px;
}

.policy section {
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.policy h2 {
  font-size: 1.85rem;
}

@media (max-width: 920px) {
  .hero {
    min-height: 84svh;
  }

  .hero-logo {
    right: -220px;
    width: 780px;
  }

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

  .hero h1 {
    font-size: 6rem;
  }

  h2 {
    font-size: 2.9rem;
  }

  .policy h1 {
    font-size: 3.8rem;
  }

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

  .cta-inner .button {
    justify-self: start;
  }
}

@media (max-width: 640px) {
  .site-header {
    position: absolute;
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 20px;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
    font-size: 0.88rem;
  }

  .hero {
    min-height: 82svh;
    padding-top: 150px;
  }

  .hero::before {
    background:
      linear-gradient(180deg, rgba(11, 17, 34, 0.98) 0%, rgba(11, 17, 34, 0.76) 56%, rgba(11, 17, 34, 0.46) 100%),
      radial-gradient(circle at 78% 72%, rgba(155, 86, 255, 0.32), transparent 35%),
      radial-gradient(circle at 60% 38%, rgba(0, 217, 221, 0.2), transparent 32%);
  }

  .hero-logo {
    right: -250px;
    width: 650px;
    opacity: 0.74;
  }

  .hero h1 {
    font-size: 4.2rem;
  }

  .hero-lede {
    font-size: 1.12rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  .policy h1 {
    font-size: 2.8rem;
  }

  .policy h2 {
    font-size: 1.45rem;
  }

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

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

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

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

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #121522;
    --surface: #191d2b;
    --surface-soft: #202333;
    --ink: #f6f7fb;
    --muted: #b8bdc9;
    --line: rgba(255, 255, 255, 0.12);
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  }

  .site-header {
    background: rgba(18, 21, 34, 0.82);
    border-bottom-color: rgba(255, 255, 255, 0.08);
  }

  .button.secondary {
    background: rgba(255, 255, 255, 0.1);
  }
}