:root {
  --bg: #070a12;
  --surface: #0f1524;
  --surface-soft: #131d33;
  --text: #e9eefb;
  --muted: #9db1d8;
  --primary: #2f6bff;
  --primary-soft: #8fb3ff;
  --border: #253351;
  --max: 1140px;
  --radius: 14px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Inter", Roboto, Arial, sans-serif;
  background: linear-gradient(180deg, #05070d 0%, #0b1221 65%, #080d18 100%);
  color: var(--text);
  line-height: 1.65;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

a {
  color: var(--primary-soft);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.narrow {
  max-width: 780px;
}

.skip-link {
  position: absolute;
  top: -42px;
  left: 12px;
  background: #fff;
  color: #000;
  padding: 0.5rem 0.8rem;
  border-radius: 8px;
  z-index: 999;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(8px);
  background: rgba(5, 8, 16, 0.86);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1rem;
}

.brand img {
  border-radius: 0;
}

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.45rem 0.75rem;
  font-size: 0.95rem;
}

.main-nav {
  display: none;
  gap: 1rem;
}

.main-nav a {
  color: var(--text);
  font-weight: 500;
}

.main-nav.is-open {
  display: grid;
  position: absolute;
  top: 72px;
  left: 0;
  right: 0;
  background: rgba(9, 13, 23, 0.98);
  border-bottom: 1px solid var(--border);
  padding: 1rem;
}

.section {
  padding: 3.6rem 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(23, 34, 58, 0.46), rgba(11, 17, 30, 0.3));
  border-top: 1px solid rgba(43, 61, 96, 0.5);
  border-bottom: 1px solid rgba(43, 61, 96, 0.5);
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0 0 0.85rem;
}

h1 {
  font-size: clamp(1.8rem, 4vw, 3.1rem);
}

h2 {
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
}

h3 {
  font-size: 1.2rem;
}

p {
  margin: 0 0 1rem;
  color: #d2ddf5;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 0.8rem;
  font-size: 0.8rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: #8aa8f8;
}

.hero-grid {
  display: grid;
  gap: 1.25rem;
}

.hero-image-wrap img {
  border: 1px solid #2b3d60;
}

.cta-group {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.25rem;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1rem;
  border-radius: 9px;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(120deg, #2f6bff, #1f53d4);
  color: #fff;
}

.btn-secondary {
  border-color: #3d5aa0;
  color: #dce7ff;
  background: #111a2f;
}

.cards {
  display: grid;
  gap: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}

.feature-list {
  margin: 0;
  padding-left: 1.15rem;
}

.feature-list li {
  margin: 0 0 0.6rem;
  color: #d8e2f7;
}

details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin: 0 0 0.8rem;
}

summary {
  font-weight: 600;
  cursor: pointer;
}

.banner {
  margin-top: 1rem;
}

.breadcrumb {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 0 1.8rem;
}

.footer-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.footer-wrap p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (min-width: 840px) {
  .menu-toggle {
    display: none;
  }

  .main-nav {
    display: flex;
  }

  .main-nav.is-open {
    display: flex;
    position: static;
    background: transparent;
    border: 0;
    padding: 0;
  }

  .hero-grid {
    grid-template-columns: 1.1fr 1fr;
    align-items: center;
  }

  .cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}