* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0a0a0a;
  --surface: #111111;
  --border: #1f2f1f;
  --neon: #00ff41;
  --neon-glow: rgba(0, 255, 65, 0.15);
  --text: #e0e0e0;
  --text-muted: #808080;
  --text-dim: #4a4a4a;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: rgba(0, 255, 65, 0.2);
  color: var(--neon);
}

/* Nav */

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-name {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 14px;
  color: var(--neon);
  letter-spacing: 0.05em;
}

.nav-link {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--neon);
}

/* Hero */

.hero {
  text-align: center;
  padding: 160px 24px 80px;
}

.hero-logo {
  width: 96px;
  height: 96px;
  border-radius: 20px;
  margin-bottom: 32px;
  box-shadow: 0 0 40px var(--neon-glow);
}

.hero h1 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 48px;
  font-weight: 700;
  color: var(--neon);
  letter-spacing: 0.02em;
  text-shadow: 0 0 30px var(--neon-glow);
  margin-bottom: 16px;
}

.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 440px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: rgba(0, 255, 65, 0.1);
  color: var(--neon);
  border-color: rgba(0, 255, 65, 0.2);
}

.btn-primary:hover {
  background: rgba(0, 255, 65, 0.18);
  box-shadow: 0 0 20px var(--neon-glow);
}

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

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

.btn-lg {
  padding: 14px 28px;
  font-size: 15px;
}

/* Features */

.features {
  max-width: 1000px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: rgba(0, 255, 65, 0.15);
}

.feature-icon {
  color: var(--neon);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

.feature-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Screenshot */

.screenshot-section {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px 100px;
}

.screenshot-wrapper {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 0 60px rgba(0, 255, 65, 0.06);
}

.screenshot-wrapper img {
  width: 100%;
  display: block;
}

/* Download */

.download {
  text-align: center;
  padding: 80px 24px;
  border-top: 1px solid var(--border);
}

.download h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
}

.download p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 32px;
}

.download-actions {
  margin-bottom: 16px;
}

.download-note {
  font-size: 12px;
  color: var(--text-dim);
}

/* Footer */

footer {
  border-top: 1px solid var(--border);
  padding: 24px;
}

.footer-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-dim);
}

footer a {
  font-size: 12px;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}

footer a:hover {
  color: var(--neon);
}

/* Responsive */

@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
}