body {
  background-color: #050510;
  color: #f8fafc;
  overflow-x: hidden;
  font-family: 'Inter', sans-serif;
  transition: background-color 0.3s, color 0.3s;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #6366f1; border-radius: 99px; }

/* Themes */
html.dark { color-scheme: dark; }

.gradient-text {
  background: linear-gradient(135deg, #6366f1 0%, #22d3ee 50%, #a855f7 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradient-x 5s ease infinite;
}

@keyframes gradient-x {
  0%, 100% { background-position: 0% 50% }
  50% { background-position: 100% 50% }
}

.glow-primary {
  box-shadow: 0 0 40px rgba(99, 102, 241, 0.35), 0 0 80px rgba(99, 102, 241, 0.12);
}

.card-hover {
  transition: transform 0.3s cubic-bezier(.25,.8,.25,1), box-shadow 0.3s cubic-bezier(.25,.8,.25,1), border-color 0.3s;
}
.card-hover:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(99,102,241,0.18);
}

.hero-bg {
  background-color: #05050f;
  background-image:
    radial-gradient(ellipse 80% 60% at 20% -10%, rgba(99,102,241,0.20) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 110%, rgba(34,211,238,0.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 50% 50%, rgba(168,85,247,0.06) 0%, transparent 70%);
}
html:not(.dark) .hero-bg {
  background-color: #f8faff;
  background-image:
    radial-gradient(ellipse 80% 60% at 20% -10%, rgba(99,102,241,0.10) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 110%, rgba(34,211,238,0.08) 0%, transparent 70%);
}

.blob {
  border-radius: 9999px;
  filter: blur(80px);
  opacity: 0.35;
  pointer-events: none;
  position: absolute;
}

.code-block {
  background: rgba(15,15,35,0.85);
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  line-height: 1.7;
}

html:not(.dark) .code-block {
  background: #f1f5f9;
  border-color: #cbd5e1;
}

.nav-blur {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.glass-card {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
}
html:not(.dark) .glass-card {
  background: rgba(255,255,255,0.8);
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

/* Typography and code blocks */
code {
  font-family: 'JetBrains Mono', monospace;
  background: rgba(15, 23, 42, 0.08);
  color: #0f172a;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85em;
}
html.dark code {
  background: rgba(255, 255, 255, 0.1);
  color: #e2e8f0;
}
pre {
  background: #0f172a !important;
  color: #f8fafc !important;
  border: 1px solid #1e293b;
  border-radius: 0.75rem !important;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.5);
  padding: 1.25rem;
  overflow-x: auto;
}
html.dark pre {
  border-color: rgba(255,255,255,0.1);
}
pre code {
  background: transparent !important;
  color: inherit !important;
  padding: 0;
  font-size: 0.9em;
}

.toggle-track {
  width: 48px; height: 26px;
  border-radius: 999px;
  position: relative;
  cursor: pointer;
  transition: background 0.3s;
}
.toggle-thumb {
  width: 20px; height: 20px;
  border-radius: 50%;
  position: absolute;
  top: 3px; left: 3px;
  transition: transform 0.3s cubic-bezier(.4,0,.2,1), background 0.3s;
}

.gsap-hidden { opacity: 1; }