:root {
  color-scheme: dark;
  --bg: #07111f;
  --panel: rgba(11, 26, 43, 0.82);
  --panel-border: rgba(130, 180, 255, 0.16);
  --text: #f4f7fb;
  --muted: #b5c7da;
  --accent: #57c7ff;
  --accent-2: #8ef2c2;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --max-width: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(87, 199, 255, 0.18), transparent 30%),
    radial-gradient(circle at top right, rgba(142, 242, 194, 0.12), transparent 28%),
    linear-gradient(180deg, #081320 0%, #040a12 100%);
  color: var(--text);
}

a {
  color: inherit;
}

.shell {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
}

.topbar {
  padding: 1.2rem 0 0;
}

.topbar-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.95rem 1.1rem;
  background: rgba(5, 16, 30, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  backdrop-filter: blur(18px);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  font-size: 0.95rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
}

.nav-links a:hover,
.nav-links a:focus-visible,
.cta-link:hover,
.cta-link:focus-visible {
  color: var(--text);
}

.hero {
  padding: 4.5rem 0 2.5rem;
}

.hero-panel,
.section-panel,
.cta-panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-panel {
  padding: 3rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(87, 199, 255, 0.12);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 1rem 0 0.85rem;
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.lead {
  max-width: 760px;
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.7;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.75rem;
}

.button,
.cta-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.8rem 1.1rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.button:hover,
.button:focus-visible,
.cta-link:hover,
.cta-link:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #2196f3 100%);
  color: #03101e;
}

.button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
}

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

.stat {
  padding: 1rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.stat strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--accent-2);
  font-size: 1rem;
}

main {
  padding-bottom: 4rem;
}

.section-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.25rem;
}

.section-panel {
  padding: 2rem;
}

.section-panel h2 {
  margin: 0 0 0.8rem;
  font-size: 1.55rem;
  letter-spacing: -0.03em;
}

.section-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.stack {
  display: grid;
  gap: 1.25rem;
}

.list {
  margin: 1rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
  line-height: 1.8;
}

.list li + li {
  margin-top: 0.45rem;
}

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

.card {
  padding: 1.1rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.card h3 {
  margin: 0 0 0.45rem;
  font-size: 1rem;
}

.card p {
  font-size: 0.96rem;
}

.cta-panel {
  margin-top: 1.25rem;
  padding: 2rem;
}

.cta-panel h2 {
  margin: 0 0 0.8rem;
  font-size: 1.7rem;
  letter-spacing: -0.03em;
}

.cta-panel p {
  margin: 0;
  max-width: 760px;
  color: var(--muted);
  line-height: 1.75;
}

.cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.25rem;
}

.footer-note {
  padding: 1rem 0 3rem;
  color: rgba(181, 199, 218, 0.8);
  font-size: 0.92rem;
}

@media (max-width: 900px) {
  .stats,
  .cards,
  .section-grid {
    grid-template-columns: 1fr;
  }

  .hero-panel,
  .section-panel,
  .cta-panel {
    padding: 1.5rem;
  }

  h1 {
    line-height: 1.02;
  }
}