:root {
  --bg-void: #03060a;
  --bg-dark: #070c13;
  --bg-panel: rgba(12, 22, 36, 0.75);
  --text-light: #f2f8ff;
  --text-muted: #7e97b8;
  --accent-cyan: #00f0ff;
  --accent-magenta: #ff2d6e;
  --accent-blue: #2d6eff;
  --glow-cyan: 0 0 40px rgba(0, 240, 255, 0.22);
  --glow-magenta: 0 0 40px rgba(255, 45, 110, 0.22);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-void);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: var(--accent-cyan); text-decoration: none; transition: 0.2s; }
a:hover { text-shadow: 0 0 10px var(--accent-cyan); }

nav {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  padding: 1.2rem 5%; display: flex; justify-content: space-between; align-items: center;
  background: rgba(3, 6, 10, 0.65);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 240, 255, 0.12);
  transition: padding 0.3s;
}
nav.scrolled { padding: 0.7rem 5%; background: rgba(3, 6, 10, 0.9); }

.logo {
  font-weight: 900; font-size: 1.4rem; letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a { color: var(--text-muted); font-weight: 500; font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.08em; }
.nav-links a:hover { color: var(--accent-cyan); }

.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  position: relative; padding: 8rem 5% 5rem;
  background: radial-gradient(circle at 70% 30%, rgba(0, 240, 255, 0.08) 0%, transparent 45%),
              radial-gradient(circle at 30% 80%, rgba(255, 45, 110, 0.08) 0%, transparent 45%),
              var(--bg-void);
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0; opacity: 0.55;
  background-size: cover; background-position: center;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.2) 70%, transparent 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 1100px; text-align: center; }
.hero h1 {
  font-size: clamp(3rem, 6vw, 5.5rem); font-weight: 900; line-height: 1.05;
  letter-spacing: -0.04em; margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #fff 20%, var(--accent-cyan) 60%, var(--accent-magenta) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero p { font-size: clamp(1.1rem, 2vw, 1.5rem); color: var(--text-muted); max-width: 720px; margin: 0 auto 2.5rem; }
.cta {
  display: inline-flex; align-items: center; gap: 0.5rem; padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #000; font-weight: 800; border-radius: 4px; font-size: 0.95rem;
  text-transform: uppercase; letter-spacing: 0.06em; border: none; cursor: pointer;
  box-shadow: var(--glow-cyan); transition: transform 0.2s;
}
.cta:hover { transform: translateY(-2px); }
.cta.secondary {
  background: transparent; color: var(--accent-cyan); border: 1px solid var(--accent-cyan);
  box-shadow: none; margin-left: 1rem;
}

.code-badge {
  display: inline-block; font-family: 'JetBrains Mono', monospace; font-size: 0.75rem;
  padding: 0.35rem 0.7rem; border: 1px solid rgba(0, 240, 255, 0.35);
  color: var(--accent-cyan); border-radius: 4px; margin-bottom: 1.2rem;
  background: rgba(0, 240, 255, 0.06);
}

section { padding: 6rem 5%; position: relative; }
.section-title {
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; letter-spacing: -0.03em;
  margin-bottom: 1rem; text-align: center;
}
.section-subtitle { color: var(--text-muted); text-align: center; max-width: 700px; margin: 0 auto 3rem; font-size: 1.1rem; }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.5rem; max-width: 1200px; margin: 0 auto; }
.feature-card {
  background: var(--bg-panel); border: 1px solid rgba(0, 240, 255, 0.12);
  border-radius: 12px; padding: 2rem; backdrop-filter: blur(10px);
  transition: transform 0.3s, box-shadow 0.3s;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--glow-cyan); }
.feature-card h3 { font-size: 1.3rem; margin-bottom: 0.8rem; color: var(--accent-cyan); }
.feature-card p { color: var(--text-muted); font-size: 0.95rem; }

.showcase-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); gap: 1.5rem; max-width: 1300px; margin: 0 auto; }
.showcase-card {
  position: relative; border-radius: 12px; overflow: hidden; aspect-ratio: 16/9;
  border: 1px solid rgba(0, 240, 255, 0.15);
}
.showcase-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.showcase-card:hover img { transform: scale(1.05); }
.showcase-overlay {
  position: absolute; inset: 0; background: linear-gradient(to top, rgba(3,6,10,0.95) 0%, transparent 60%);
  display: flex; flex-direction: column; justify-content: flex-end; padding: 1.5rem;
}
.showcase-overlay h4 { font-size: 1.2rem; margin-bottom: 0.3rem; }
.showcase-overlay span { color: var(--text-muted); font-size: 0.85rem; }

.architecture-strip {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; max-width: 900px; margin: 3rem auto 0;
}
.arch-step {
  background: rgba(0, 240, 255, 0.08); border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: 8px; padding: 1rem 1.5rem; font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem; color: var(--accent-cyan);
}

footer {
  border-top: 1px solid rgba(0, 240, 255, 0.12); padding: 3rem 5%; text-align: center;
  background: var(--bg-dark); color: var(--text-muted); font-size: 0.9rem;
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero h1 { font-size: 2.5rem; }
  .cta.secondary { margin-left: 0; margin-top: 1rem; }
}