html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, sans-serif; }
h1, h2, h3, .font-display { font-family: 'Poppins', 'Inter', system-ui, sans-serif; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #F8FAFC; }
::-webkit-scrollbar-thumb { background: #1C72E0; border-radius: 10px; }
.dark ::-webkit-scrollbar-track { background: #0B1628; }

.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease-out, transform 0.7s ease-out; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

.gradient-text {
  background: linear-gradient(90deg, #1C72E0, #8ED0FF, #1C72E0);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.blob-shape { position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.35; }

.accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }

.hover-lift { transition: transform 0.3s ease, box-shadow 0.3s ease; }
.hover-lift:hover { transform: translateY(-8px); box-shadow: 0 20px 40px -10px rgba(28,114,224,0.25); }

.nav-link { position: relative; }
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -4px;
  width: 0; height: 2px;
  background: #1C72E0;
  transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

#mobile-menu { transition: max-height 0.4s ease, opacity 0.3s ease; }

.timeline-dot { box-shadow: 0 0 0 6px rgba(28,114,224,0.15); }

.glow-text { text-shadow: 0 0 24px rgba(94,182,255,0.55); }
.glow-ring { box-shadow: 0 0 40px rgba(28,114,224,0.35); }

.circuit-bg {
  background-image:
    radial-gradient(circle at 20% 20%, rgba(28,114,224,0.10) 0, transparent 35%),
    radial-gradient(circle at 80% 70%, rgba(94,182,255,0.08) 0, transparent 35%),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.025) 0px, rgba(255,255,255,0.025) 1px, transparent 1px, transparent 48px),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.025) 0px, rgba(255,255,255,0.025) 1px, transparent 1px, transparent 48px);
}

/* fake chart bars for solution mockups */
.bar-chip { background: linear-gradient(180deg, #5EB6FF, #1C72E0); border-radius: 3px; }

/* Staggered animation delays (kept out of inline style attributes) */
.anim-delay-100 { animation-delay: 0.1s; }
.anim-delay-400 { animation-delay: 0.4s; }
.anim-delay-1000 { animation-delay: 1s; }
.anim-delay-2000 { animation-delay: 2s; }
.anim-delay-3000 { animation-delay: 3s; }
.anim-delay-4000 { animation-delay: 4s; }
.anim-delay-6000 { animation-delay: 6s; }