:root {
  --bg: #07111f;
  --bg-soft: #0d1c31;
  --card: rgba(255, 255, 255, 0.08);
  --card-border: rgba(255, 255, 255, 0.14);
  --text: #f6f8fb;
  --muted: #b8c4d6;
  --accent: #9ee7ff;
  --accent-strong: #ffffff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(158, 231, 255, 0.22), transparent 34rem),
    radial-gradient(circle at 70% 10%, rgba(208, 190, 255, 0.18), transparent 28rem),
    linear-gradient(135deg, #07111f 0%, #0b1526 45%, #101b2b 100%);
  min-height: 100vh;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(7, 17, 31, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #07111f;
  background: linear-gradient(135deg, #ffffff, #9ee7ff);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-weight: 600;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-cta {
  color: #07111f !important;
  background: var(--accent);
  padding: 10px 16px;
  border-radius: 999px;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--card-border);
  color: var(--text);
  background: var(--card);
  border-radius: 12px;
  padding: 8px 10px;
  font-size: 1.2rem;
}

.hero,
.section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  align-items: center;
  gap: 54px;
  padding: 72px 0;
}

.eyebrow {
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.78rem;
  margin: 0 0 14px;
}

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

h1 {
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 0.92;
  letter-spacing: -0.08em;
  margin-bottom: 24px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
  letter-spacing: -0.06em;
  margin-bottom: 20px;
}

h3 {
  font-size: 1.35rem;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.hero-text,
.section p,
.card p,
.feature-list {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.hero-text {
  max-width: 650px;
  font-size: 1.2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 800;
  border: 1px solid var(--card-border);
}

.button.primary {
  color: #07111f;
  background: linear-gradient(135deg, #ffffff, var(--accent));
}

.button.secondary {
  color: var(--text);
  background: var(--card);
}

.hero-card,
.card,
.contact,
.feature {
  background: var(--card);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  border-radius: 30px;
}

.hero-card {
  position: relative;
  overflow: hidden;
  min-height: 430px;
  padding: 34px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.orb {
  position: absolute;
  top: 48px;
  right: 42px;
  width: 210px;
  height: 210px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 25%, #ffffff 0 10%, #9ee7ff 18%, rgba(158, 231, 255, 0.4) 42%, transparent 70%);
  filter: drop-shadow(0 0 48px rgba(158, 231, 255, 0.7));
}

.hero-card h2,
.hero-card p,
.stat-grid {
  position: relative;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 26px;
}

.stat-grid div {
  padding: 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
}

.stat-grid strong,
.stat-grid span {
  display: block;
}

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

.section {
  padding: 96px 0;
}

.split,
.feature {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 46px;
  align-items: start;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 28px;
}

.card {
  padding: 28px;
  box-shadow: none;
}

.feature {
  padding: 44px;
}

.feature-list {
  margin: 0;
  padding-left: 22px;
}

.feature-list li {
  margin-bottom: 14px;
}

.contact {
  padding: 54px;
  text-align: center;
}

.contact p {
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 48px;
  color: var(--muted);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 820px) {
  .nav {
    min-height: 68px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 76px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    border-radius: 22px;
    background: rgba(7, 17, 31, 0.96);
    border: 1px solid var(--card-border);
  }

  .nav-links.open {
    display: flex;
  }

  .hero,
  .split,
  .feature,
  .cards {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding: 58px 0;
  }

  .section {
    padding: 64px 0;
  }

  .feature,
  .contact {
    padding: 30px;
  }
}