:root {
  --brand-600: #0ea5e9;
  --brand-700: #0284c7;
  --accent-600: #6366f1;
  --accent-700: #4f46e5;
  --dark-900: #0f172a;
  --dark-800: #1e293b;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background-color: var(--dark-900);
  color: var(--text-main);
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
.nav-scrolled { background: rgba(15,23,42,0.88); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(148,163,184,0.1); }
.gradient-text { background: linear-gradient(135deg, #38bdf8, #818cf8); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-bg { position: absolute; inset: 0; overflow: hidden; z-index: 0; pointer-events: none; }
.hero-bg svg { width: 100%; height: 100%; opacity: 0.35; }
.pulse { animation: pulse 4s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 0.4; transform: scale(1); } 50% { opacity: 0.8; transform: scale(1.02); } }
.flow-line { stroke-dasharray: 10; animation: dash 2s linear infinite; }
@keyframes dash { to { stroke-dashoffset: -20; } }
.card-hover { transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s; }
.card-hover:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.25); border-color: rgba(56,189,248,0.4); }
.timeline { position: relative; }
.timeline::before { content: ""; position: absolute; left: 15px; top: 0; bottom: 0; width: 2px; background: linear-gradient(180deg, var(--brand-600), var(--accent-600)); }
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.code-block { position: relative; background: #0b1120; border: 1px solid rgba(148,163,184,0.15); border-radius: 0.75rem; overflow: hidden; }
.code-block pre { padding: 1.25rem; overflow-x: auto; font-size: 0.875rem; line-height: 1.6; color: #e2e8f0; margin: 0; }
.copy-btn { position: absolute; top: 0.5rem; right: 0.5rem; padding: 0.35rem 0.65rem; font-size: 0.75rem; border-radius: 0.375rem; background: rgba(255,255,255,0.08); color: #cbd5e1; border: 1px solid rgba(255,255,255,0.1); cursor: pointer; transition: background 0.2s; }
.copy-btn:hover { background: rgba(255,255,255,0.15); }
.tab-btn.active { background: rgba(56,189,248,0.15); color: #38bdf8; border-color: rgba(56,189,248,0.4); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn 0.25s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }
.mobile-menu { transform: translateX(100%); transition: transform 0.25s ease; }
.mobile-menu.open { transform: translateX(0); }
.lang-active { color: #38bdf8; font-weight: 600; }
.compare-table th, .compare-table td { border-bottom: 1px solid rgba(148,163,184,0.15); padding: 0.875rem 1rem; text-align: left; }
.compare-table th { color: #94a3b8; font-weight: 500; font-size: 0.875rem; }
.compare-table td { color: #e2e8f0; }
.compare-table tr:hover td { background: rgba(255,255,255,0.02); }
@media (max-width: 768px) {
  .hero-bg svg { display: none; }
}

/* Hide nav links for SaaS, Market, Pricing, Docs */
nav .hidden.md-flex a[href*="saas"],
nav .hidden.md-flex a[href*="market"],
nav .hidden.md-flex a[href*="pricing"],
nav .hidden.md-flex a[href*="docs/index"],
#mobile-menu a[href*="saas"],
#mobile-menu a[href*="market"],
#mobile-menu a[href*="pricing"],
#mobile-menu a[href*="docs/index"] {
  display: none !important;
}