/* ── Floating Particles Background ── */
.particles-bg {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.particle {
  position: absolute;
  width: 4px; height: 4px;
  background: rgba(56,189,248,.4);
  border-radius: 50%;
  animation: floatUp 15s linear infinite;
}
@keyframes floatUp {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

/* ── 3D Tilt Cards ── */
.tilt-card {
  transform-style: preserve-3d;
  transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1);
  perspective: 1000px;
}
.tilt-card:hover {
  transform: perspective(1000px) rotateX(2deg) rotateY(2deg) scale(1.02);
}

/* ── Glow Pulse Animation ── */
.glow-pulse {
  animation: glowPulse 2s ease-in-out infinite;
}
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(56,189,248,.2); }
  50% { box-shadow: 0 0 40px rgba(56,189,248,.5), 0 0 60px rgba(56,189,248,.2); }
}

/* ── Magnetic Button Effect ── */
.magnetic-btn {
  transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1);
  will-change: transform;
}

/* ── Hero Text Shimmer ── */
.shimmer {
  background: linear-gradient(90deg, #38bdf8 0%, #86efac 50%, #38bdf8 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s linear infinite;
}
@keyframes shimmer {
  0% { background-position: 200% center; }
  100% { background-position: -200% center; }
}

/* ── Scroll Counter Animation ── */
.counter-anim {
  display: inline-block;
  transition: all 0.5s ease;
}

/* ── Typewriter Effect ── */
.typewriter {
  overflow: hidden;
  border-right: 3px solid #38bdf8;
  white-space: nowrap;
  animation: typing 2s steps(40, end), blink-caret 0.75s step-end infinite;
}
@keyframes typing { from { width: 0 } to { width: 100% } }
@keyframes blink-caret { 50% { border-color: transparent } }

/* ── Glassmorphism enhancement ── */
.glass {
  background: rgba(255,255,255,.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,.15);
}

/* ── Neon glow for primary buttons ── */
.btn-neon {
  position: relative;
  overflow: hidden;
}
.btn-neon::after {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(56,189,248,.3) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.btn-neon:hover::after {
  opacity: 1;
}

/* ── Smooth reveal with slide ── */
.slide-up {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}
.slide-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Card lift effect ── */
.lift {
  transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}
.lift:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0,0,0,.3), 0 0 20px rgba(56,189,248,.2);
}