:root {
  --bg: #020812;
  --surface: rgba(16, 34, 60, 0.92);
  --surface-soft: rgba(16, 34, 60, 0.7);
  --panel: #0d1b33;
  --text: #f6fbff;
  --muted: #9bb5d6;
  --primary: #5e9cff;
  --primary-dark: #3b76d1;
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 24px 80px rgba(1, 19, 48, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  background: radial-gradient(circle at top, rgba(94, 156, 255, 0.14), transparent 25%),
    radial-gradient(circle at 20% 10%, rgba(133, 179, 255, 0.08), transparent 20%),
    linear-gradient(180deg, #020812 0%, #081421 100%);
  color: var(--text);
}

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

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

button,
.btn {
  font: inherit;
}

.container {
  width: min(1200px, calc(100% - 3rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(2, 8, 18, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 1.75rem;
  align-items: center;
}

.nav-links a {
  color: var(--muted);
  transition: color 0.25s ease;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  gap: 0.35rem;
  flex-direction: column;
  padding: 0.35rem;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  display: block;
}

.hero {
  padding: 5rem 0 4rem;
}

.hero-grid {
  display: grid;
  align-items: center;
  gap: 2rem;
  grid-template-columns: 1.1fr 0.9fr;
}

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

.eyebrow {
  display: inline-block;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--primary);
  font-size: 0.8rem;
}

.hero h1,
.section-heading h2,
.promo-panel h2,
.faq-cta h2 {
  margin: 0;
  font-size: clamp(2.7rem, 3.8vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.hero p,
.feature-card p,
.split-copy p,
.promo-panel p,
.testimonial-card p,
.faq-item p,
.cta-panel p,
.site-footer p,
.site-footer li {
  color: var(--muted);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2rem 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 1.75rem;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #6fc0ff);
  color: #031127;
}

.btn-secondary {
  border: 1px solid rgba(94, 156, 255, 0.28);
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.hero-stats div {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  padding: 1rem 1.25rem;
}

.hero-stats strong {
  display: block;
  font-size: 1.45rem;
  color: var(--text);
}

.hero-media {
  position: relative;
}

.hero-media img {
  border-radius: 1.75rem;
  box-shadow: var(--shadow);
}

.hero-card {
  position: absolute;
  bottom: -1.5rem;
  right: 0;
  left: 0;
  margin: auto;
  width: min(420px, 100%);
  background: rgba(3, 17, 43, 0.95);
  padding: 1.5rem 1.5rem;
  border-radius: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  color: #c8d7ff;
}

.feature-overview,
.feature-split,
.promo-panel,
.testimonials,
.faq-cta {
  padding: 5rem 0;
}

.section-heading {
  max-width: 750px;
  margin-bottom: 2.5rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1.5rem;
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.feature-card h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.split-media img {
  width: 100%;
  border-radius: 2rem;
  box-shadow: var(--shadow);
}

.split-copy ul {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
  display: grid;
  gap: 0.9rem;
}

.split-copy li {
  position: relative;
  padding-left: 1.75rem;
}

.split-copy li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--primary);
}

.promo-panel {
  background: rgba(13, 27, 51, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 2rem;
}

.promo-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 2rem;
  align-items: center;
}

.promo-highlights {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.promo-highlights div {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1.25rem;
  padding: 1rem 1.25rem;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.testimonial-card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1.75rem;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.testimonial-card img {
  width: 64px;
  height: 64px;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.testimonial-card h4,
.testimonial-card span {
  margin: 0;
}

.testimonial-card h4 {
  margin-top: 1.5rem;
  margin-bottom: 0.35rem;
}

.testimonial-card span {
  color: var(--muted);
}

.faq-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
}

.faq-item {
  margin-bottom: 1.5rem;
}

.faq-item h3 {
  margin-bottom: 0.75rem;
}

.cta-panel {
  background: linear-gradient(180deg, rgba(3, 17, 43, 0.9), rgba(8, 20, 44, 0.95));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 2rem;
  padding: 2rem;
}

.contact-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1.5rem;
  padding: 1.5rem;
  margin: 2rem 0;
}

.contact-card strong,
.contact-card a,
.contact-card address {
  display: block;
  color: var(--text);
}

.site-footer {
  padding: 3rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.site-footer h3,
.site-footer h4 {
  margin-top: 0;
  margin-bottom: 1rem;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.5rem;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 1040px) {
  .hero-grid,
  .split-grid,
  .promo-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .header-inner {
    align-items: flex-start;
    gap: 1rem;
    padding: 0.75rem 0;
  }

  .nav-links {
    position: fixed;
    top: 76px;
    right: 0;
    left: 0;
    background: rgba(2, 8, 18, 0.95);
    flex-direction: column;
    align-items: center;
    padding: 1.25rem 0;
    gap: 1rem;
    transform: translateY(-200%);
    transition: transform 0.3s ease;
  }

  .nav-links.active {
    transform: translateY(0);
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding-top: 4rem;
  }

  .hero h1,
  .section-heading h2,
  .promo-panel h2,
  .faq-cta h2 {
    font-size: clamp(2.5rem, 8vw, 3.5rem);
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

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

  .hero-card {
    position: static;
    margin-top: 1.5rem;
  }
}