:root {
  --bg: #061933;
  --surface: rgba(10, 25, 51, 0.74);
  --surface-alt: rgba(13, 32, 64, 0.72);
  --surface-accent: #08152b;
  --text: #f4f8ff;
  --muted: #b4c2d9;
  --line: rgba(103, 141, 198, 0.34);
  --accent: #1f5eff;
  --accent-soft: rgba(31, 94, 255, 0.18);
  --shadow: 0 18px 48px rgba(0, 7, 20, 0.28);
  --radius: 20px;
  --radius-sm: 12px;
  --container: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  font-family: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 50% 15%, rgba(31, 94, 255, 0.12), transparent 28%),
    linear-gradient(180deg, #03101f 0%, #061933 48%, #041325 100%);
  line-height: 1.6;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  z-index: -2;
  background: url("assets/circuit-overlay.svg") center / 100% 100% no-repeat;
  opacity: 0.95;
}

body::after {
  z-index: -1;
  background:
    radial-gradient(circle at center, rgba(4, 19, 37, 0), rgba(4, 19, 37, 0.12) 58%, rgba(3, 16, 31, 0.38) 100%);
}

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

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

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

.narrow {
  max-width: 760px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(4, 16, 31, 0.78);
  border-bottom: 1px solid rgba(103, 141, 198, 0.22);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.brand-name {
  font-size: 0.98rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.brand-role {
  color: rgba(228, 237, 251, 0.58);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.brand-mark {
  display: block;
  width: 3.2rem;
  height: auto;
  filter: drop-shadow(0 4px 10px rgba(0, 7, 20, 0.16));
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  color: rgba(228, 237, 251, 0.78);
  font-size: 0.95rem;
}

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

.hero {
  padding: 5.5rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.9fr);
  gap: 2rem;
  align-items: center;
}

.eyebrow,
.section-label {
  margin-bottom: 1rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1 {
  margin-bottom: 1rem;
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.lead {
  max-width: 46rem;
  font-size: 1.15rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.1rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.button-primary {
  color: #ffffff;
  background: var(--accent);
  box-shadow: 0 12px 24px rgba(31, 94, 255, 0.22);
}

.button-contrast,
.connect-panel .button-primary {
  background: #ffffff;
  color: var(--surface-accent);
  box-shadow: none;
}

.button-secondary {
  color: var(--text);
  border-color: var(--line);
  background: rgba(9, 25, 49, 0.58);
}

.hero-panel,
.card,
.connect-panel {
  background: var(--surface);
  border: 1px solid rgba(103, 141, 198, 0.26);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hero-panel {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
}

.stat {
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(19, 44, 83, 0.92), rgba(10, 24, 49, 0.72));
}

.stat strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 1rem;
}

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

.section {
  padding: 4rem 0;
}

.section-alt {
  background: rgba(7, 20, 40, 0.2);
}

.section-heading {
  margin-bottom: 1.75rem;
}

.section h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.section p {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.card {
  padding: 1.5rem;
}

.card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.05rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tag-list li {
  padding: 0.7rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(9, 24, 48, 0.72);
  color: var(--muted);
  font-weight: 500;
}

.section-accent {
  padding-bottom: 5rem;
}

.connect-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2rem;
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(31, 94, 255, 0.32), rgba(8, 21, 43, 0.94)),
    var(--surface-accent);
}

.connect-panel p,
.connect-panel .section-label {
  color: rgba(255, 255, 255, 0.78);
}

.connect-panel .button-primary {
  flex-shrink: 0;
}

@media (max-width: 840px) {
  .hero {
    padding-top: 4rem;
  }

  .brand-role {
    display: none;
  }

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

  .connect-panel {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .site-nav {
    display: none;
  }

  .brand-name {
    font-size: 0.9rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .section,
  .section-accent {
    padding: 3rem 0;
  }

  .hero-panel,
  .card,
  .connect-panel {
    padding: 1.25rem;
  }
}