:root {
  --bg: #05070c;
  --bg-alt: #0a0e17;
  --panel: #10151f;
  --border: #1f2836;
  --text: #e7edf5;
  --text-muted: #93a1b5;
  --ice: #4fc3f7;
  --ice-bright: #8fdcff;
  --ember: #ff7a3d;

  --font-body: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-display: "Orbitron", var(--font-body);

  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 0 0 16px;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  color: #fff;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  color: var(--ice-bright);
}

p {
  margin: 0 0 16px;
  color: var(--text-muted);
}

a {
  color: var(--ice);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(5, 7, 12, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: #fff;
}

.site-nav {
  display: flex;
  gap: 24px;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.site-nav a:hover {
  color: var(--ice-bright);
}

/* Hero */

.hero {
  padding: 72px 0 88px;
  background:
    radial-gradient(circle at 80% 0%, rgba(79, 195, 247, 0.12), transparent 55%),
    var(--bg);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  color: var(--ice);
  font-weight: 600;
  margin-bottom: 12px;
}

.lede {
  font-size: 1.1rem;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--ice);
  color: #041017;
}

.btn-primary:hover {
  background: var(--ice-bright);
}

.btn-ghost {
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--ice);
  color: var(--ice-bright);
}

.hero-art {
  display: flex;
  justify-content: center;
}

.hero-art img {
  width: 100%;
  max-width: 420px;
  filter: drop-shadow(0 20px 45px rgba(79, 195, 247, 0.35));
}

/* About */

.about {
  padding: 64px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about .container {
  max-width: 760px;
}

/* Products */

.products {
  padding: 72px 0 88px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.product-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  display: flex;
  flex-direction: column;
}

.product-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.product-card-head h3 {
  margin: 0;
  font-size: 1.25rem;
  color: #fff;
}

.badge {
  flex-shrink: 0;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
}

.badge-alpha {
  color: #041017;
  background: var(--ice);
}

.badge-concept {
  color: var(--ember);
  background: transparent;
  border-color: var(--ember);
}

.product-card p {
  flex: 1;
}

.product-link {
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
}

.product-link:hover {
  color: var(--ice-bright);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-inner p {
  margin: 0;
}

.copyright {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive */

@media (max-width: 800px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-art {
    order: -1;
  }

  .hero-art img {
    max-width: 280px;
  }

  .site-nav {
    gap: 16px;
  }
}