/* === Reset === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: #0a0b0d;
  color: #b0b8c0;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: #2dd4a8; text-decoration: none; transition: color 0.2s; }
a:hover { color: #5eead4; }
h1, h2, h3, h4 { color: #f0f2f5; font-weight: 700; line-height: 1.2; }

/* === Layout === */
.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }
.narrow { max-width: 720px; margin: 0 auto; }

/* === Nav === */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1rem 0;
  background: rgba(10, 11, 13, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(45, 212, 168, 0.08);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-weight: 700; font-size: 1.1rem; color: #f0f2f5; }
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a { color: #8090a0; font-size: 0.9rem; font-weight: 500; }
.nav-links a:hover { color: #f0f2f5; }

/* === Buttons === */
.btn {
  display: inline-block; padding: 0.7rem 1.6rem; border-radius: 8px;
  font-weight: 600; font-size: 0.9rem; transition: all 0.2s; cursor: pointer; border: none;
}
.btn-sm { padding: 0.5rem 1.2rem; font-size: 0.85rem; }
.btn-primary { background: linear-gradient(135deg, #0d9373, #2dd4a8); color: #0a0b0d; }
.btn-primary:hover { background: linear-gradient(135deg, #10b981, #5eead4); color: #0a0b0d; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: #b0b8c0; border: 1px solid rgba(45, 212, 168, 0.3); }
.btn-ghost:hover { border-color: rgba(45, 212, 168, 0.6); color: #f0f2f5; }

/* === Hero === */
.hero { position: relative; padding: 10rem 0 6rem; overflow: hidden; }
.hero-glow {
  position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(45, 212, 168, 0.1) 0%, transparent 60%);
  pointer-events: none;
}
.badge {
  display: inline-block; padding: 0.4rem 1.2rem; border-radius: 20px;
  background: rgba(45, 212, 168, 0.08); border: 1px solid rgba(45, 212, 168, 0.15);
  font-size: 0.8rem; font-weight: 500; color: #2dd4a8;
  letter-spacing: 0.03em; margin-bottom: 2rem;
}
.hero h1 { font-size: clamp(2.5rem, 6vw, 4rem); font-weight: 800; margin-bottom: 1.5rem; letter-spacing: -0.03em; }
.gradient-text {
  background: linear-gradient(135deg, #2dd4a8, #0d9373);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-sub { font-size: 1.15rem; color: #8090a0; max-width: 580px; margin-bottom: 2.5rem; }
.hero-actions { display: flex; gap: 1rem; margin-bottom: 4rem; }
.hero-stats {
  display: flex; gap: 3rem;
  padding-top: 3rem; border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.stat { text-align: center; }
.stat-value { display: block; font-size: 2rem; font-weight: 700; color: #2dd4a8; font-family: 'JetBrains Mono', monospace; }
.stat-label { font-size: 0.75rem; color: #606870; text-transform: uppercase; letter-spacing: 0.06em; }

/* === Sections === */
.section { padding: 6rem 0; }
.section-dark { background: rgba(255, 255, 255, 0.015); }
.section-title { font-size: 2rem; margin-bottom: 1rem; text-align: center; letter-spacing: -0.02em; }
.section-sub { text-align: center; color: #8090a0; font-size: 1.05rem; margin-bottom: 3rem; }
.lead { font-size: 1.2rem; color: #d0d8e0; line-height: 1.6; margin-bottom: 1rem; }

/* === Highlight Box === */
.highlight-box {
  background: rgba(45, 212, 168, 0.06);
  border: 1px solid rgba(45, 212, 168, 0.15);
  border-radius: 10px; padding: 1.5rem 2rem; margin-top: 2rem;
  font-size: 1.05rem; color: #d0d8e0;
}

/* === Pipeline === */
.pipeline { display: flex; align-items: flex-start; justify-content: center; gap: 0.5rem; flex-wrap: wrap; }
.pipeline-step {
  flex: 1; min-width: 180px; max-width: 220px;
  text-align: center; padding: 1.5rem 1rem;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
}
.step-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; color: #2dd4a8; font-weight: 700;
  display: block; margin-bottom: 0.5rem;
}
.step-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.pipeline-step h3 { font-size: 1rem; margin-bottom: 0.4rem; }
.pipeline-step p { font-size: 0.85rem; color: #8090a0; }
.pipeline-arrow { color: #2dd4a8; font-size: 1.5rem; align-self: center; padding-top: 1rem; }

/* === Grid & Cards === */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px; padding: 2rem;
  transition: border-color 0.3s, transform 0.3s;
}
.card:hover { border-color: rgba(45, 212, 168, 0.2); transform: translateY(-2px); }
.card-icon { font-size: 2rem; margin-bottom: 1rem; }
.card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }

/* === Roadmap === */
.roadmap { position: relative; padding-left: 2rem; }
.roadmap::before {
  content: ''; position: absolute; left: 7px; top: 0; bottom: 0;
  width: 2px; background: rgba(255, 255, 255, 0.05);
}
.roadmap-item { position: relative; padding: 1rem 0 1.5rem 1.5rem; }
.roadmap-dot {
  position: absolute; left: -2rem; top: 1.2rem;
  width: 16px; height: 16px; border-radius: 50%;
  background: #1a1d22; border: 2px solid #3a3f48;
}
.roadmap-item.done .roadmap-dot { background: #0d9373; border-color: #2dd4a8; }
.roadmap-item.active .roadmap-dot { background: #2dd4a8; border-color: #5eead4; box-shadow: 0 0 12px rgba(45, 212, 168, 0.4); }
.roadmap-phase { font-weight: 700; color: #f0f2f5; margin-right: 0.75rem; }
.roadmap-status {
  display: inline-block; padding: 0.15rem 0.6rem; border-radius: 4px;
  font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em;
}
.status-done { background: rgba(45, 212, 168, 0.15); color: #2dd4a8; }
.status-active { background: rgba(45, 212, 168, 0.2); color: #5eead4; }
.status-planned { background: rgba(255, 255, 255, 0.05); color: #606870; }
.roadmap-content p { margin-top: 0.4rem; font-size: 0.9rem; color: #8090a0; }

/* === FUSV badge === */
.fusv-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem; font-weight: 500;
  color: #606870; letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 1rem;
}

/* === Footer === */
.footer { padding: 2rem 0; border-top: 1px solid rgba(255, 255, 255, 0.04); }
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.85rem; color: #404850;
}
.footer-logo { font-weight: 700; color: #606870; }
.footer-copy a { color: #606870; }
.footer-copy a:hover { color: #2dd4a8; }
.footer-tagline a { color: #606870; }
.footer-tagline a:hover { color: #2dd4a8; }

/* === Responsive === */
@media (max-width: 768px) {
  .hero { padding: 8rem 0 4rem; }
  .hero-stats { flex-wrap: wrap; gap: 1.5rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .grid-2 { grid-template-columns: 1fr; }
  .pipeline { flex-direction: column; align-items: center; }
  .pipeline-arrow { transform: rotate(90deg); padding: 0; }
  .nav-links { display: none; }
  .footer-inner { flex-direction: column; gap: 0.5rem; text-align: center; }
  .section { padding: 4rem 0; }
}