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

:root {
  --bg: #000; --surface: #0a0a0a; --card: #111; --border: #222;
  --text: #f0f0f0; --text2: #888; --accent: #22c55e; --accent2: #16a34a;
  --blue: #3b82f6;
}

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

.container { max-width: 1080px; margin: 0 auto; padding: 0 1.5rem; }

/* Nav */
nav { position: fixed; top: 0; width: 100%; z-index: 100;
  background: rgba(0,0,0,0.8); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; justify-content: space-between; align-items: center; height: 60px; }
.logo { color: var(--text); text-decoration: none; font-weight: 700; font-size: 1.1rem; }
.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a { color: var(--text2); text-decoration: none; font-size: 0.9rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center;
  padding: 0.6rem 1.25rem; border-radius: 8px; font-size: 0.9rem;
  font-weight: 600; border: none; cursor: pointer; text-decoration: none; transition: all 0.2s; }
.btn-sm { padding: 0.4rem 1rem; font-size: 0.85rem; }
.btn-lg { padding: 0.85rem 2rem; font-size: 1.05rem; }
.btn-primary { background: var(--accent); color: #000; }
.btn-primary:hover { background: var(--accent2); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--text2); }
.btn-ghost { background: transparent; color: var(--text2); }
.btn-ghost:hover { color: var(--text); }

/* Hero */
.hero { padding: 10rem 0 5rem; text-align: center; }
.badge { display: inline-block; padding: 0.35rem 1rem; border-radius: 20px;
  background: rgba(34,197,94,0.1); color: var(--accent); font-size: 0.85rem;
  font-weight: 600; margin-bottom: 1.5rem; border: 1px solid rgba(34,197,94,0.2); }
.hero h1 { font-size: 3.5rem; font-weight: 800; line-height: 1.1; margin-bottom: 1.25rem;
  background: linear-gradient(135deg, #fff 0%, #aaa 100%); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; }
.hero-sub { color: var(--text2); font-size: 1.2rem; max-width: 600px; margin: 0 auto 2.5rem; line-height: 1.6; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; margin-bottom: 4rem; }
.hero-stats { display: flex; justify-content: center; gap: 4rem; }
.hero-stats div { text-align: center; }
.hero-stats strong { display: block; font-size: 1.5rem; font-weight: 700; }
.hero-stats span { color: var(--text2); font-size: 0.85rem; }

/* Sections */
section { padding: 5rem 0; }
h2 { font-size: 2.25rem; font-weight: 800; text-align: center; margin-bottom: 0.5rem; }
.section-sub { text-align: center; color: var(--text2); font-size: 1.05rem; margin-bottom: 3rem; }

/* Features */
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.feature-card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 2rem; }
.feature-icon { font-size: 2rem; margin-bottom: 0.75rem; }
.feature-card h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
.feature-card p { color: var(--text2); font-size: 0.95rem; line-height: 1.5; }

/* How it works */
.how-it-works { background: var(--surface); }
.steps { display: flex; align-items: flex-start; justify-content: center; gap: 1.5rem; }
.step { background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 2rem; flex: 1; max-width: 280px; text-align: center; }
.step-num { width: 40px; height: 40px; border-radius: 50%; background: var(--accent);
  color: #000; font-weight: 800; font-size: 1.1rem; display: flex; align-items: center;
  justify-content: center; margin: 0 auto 1rem; }
.step h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.step p { color: var(--text2); font-size: 0.9rem; line-height: 1.5; }
.step-arrow { color: var(--text2); font-size: 1.5rem; padding-top: 3rem; }

/* Pricing */
.pricing { background: var(--surface); }
.pricing-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; max-width: 700px; margin: 0 auto; }
.pricing-card { background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 2.5rem 2rem; text-align: center; position: relative; }
.pricing-card.featured { border-color: var(--accent); }
.popular-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #000; padding: 3px 14px; border-radius: 20px;
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.tier { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem; }
.price { font-size: 3rem; font-weight: 800; }
.price-sub { color: var(--text2); font-size: 0.9rem; margin-bottom: 1.5rem; }
.pricing-card ul { list-style: none; text-align: left; margin-bottom: 2rem; }
.pricing-card li { padding: 0.4rem 0; color: var(--text2); font-size: 0.9rem; }
.pricing-card li::before { content: "\2713"; color: var(--accent); margin-right: 0.6rem; font-weight: 700; }
.pricing-card .btn { width: 100%; }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.faq-item { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 1.5rem; }
.faq-item h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.faq-item p { color: var(--text2); font-size: 0.9rem; line-height: 1.5; }

/* Download */
.download { text-align: center; padding: 6rem 0; }
.download-buttons { display: flex; gap: 1rem; justify-content: center; margin: 2rem 0; }
.download-btn { min-width: 220px; }
.dl-icon { margin-right: 0.5rem; }
.dl-note { color: var(--text2); font-size: 0.85rem; }

.install-help {
  max-width: 520px; margin: 2.5rem auto 0; background: var(--card);
  border: 1px solid var(--border); border-radius: 16px; padding: 2rem;
  text-align: left;
}
.install-help h3 { font-size: 1.05rem; margin-bottom: 0.5rem; text-align: center; }
.install-help > p { color: var(--text2); font-size: 0.9rem; text-align: center; margin-bottom: 1.25rem; line-height: 1.5; }
.install-steps { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 1rem; }
.install-step {
  display: flex; align-items: center; gap: 1rem;
  background: var(--surface); border-radius: 10px; padding: 0.85rem 1rem;
}
.install-num {
  width: 28px; height: 28px; border-radius: 50%; background: var(--accent);
  color: #000; font-weight: 800; font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.install-step div:last-child { font-size: 0.95rem; }
.install-note { color: var(--text2); font-size: 0.8rem; text-align: center; margin: 0; }

/* Footer */
footer { border-top: 1px solid var(--border); padding: 2rem 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; }
.footer-link { color: var(--text2); text-decoration: none; font-size: 0.85rem; }
.footer-link:hover { color: var(--text); }
.sep { color: var(--border); margin: 0 0.75rem; }
.copyright { color: var(--text2); font-size: 0.8rem; }

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 2.25rem; }
  .hero-stats { gap: 2rem; }
  .feature-grid, .pricing-grid, .faq-grid { grid-template-columns: 1fr; }
  .steps { flex-direction: column; align-items: center; }
  .step-arrow { transform: rotate(90deg); padding: 0; }
  .download-buttons { flex-direction: column; align-items: center; }
  .footer-inner { flex-direction: column; gap: 0.75rem; text-align: center; }
  .nav-links { gap: 1rem; }
}