/* ==========================================================================
   Animations & Motion Design - Medudhula Rohith Kumar Portfolio
   Cyber-Cloud Visual Dynamics & Micro-Interactions
   ========================================================================== */

/* Keyframes */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes pulse-dot {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 6px var(--cyan-primary);
  }
  50% {
    transform: scale(1.35);
    box-shadow: 0 0 14px var(--cyan-primary), 0 0 20px var(--cyan-primary);
  }
}

@keyframes shine {
  0% { transform: translate(-100%, -100%) rotate(30deg); }
  100% { transform: translate(100%, 100%) rotate(30deg); }
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(1deg); }
}

@keyframes packet-flow-horizontal {
  0% {
    left: 0%;
    opacity: 0;
  }
  15% {
    opacity: 1;
  }
  85% {
    opacity: 1;
  }
  100% {
    left: 100%;
    opacity: 0;
  }
}

@keyframes scanline {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(1000%); }
}

@keyframes radar-sweep {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Classes for animation */
.animate-float {
  animation: float-slow 6s ease-in-out infinite;
}

.scanline-effect {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan-primary), transparent);
  opacity: 0.5;
  animation: scanline 8s linear infinite;
  pointer-events: none;
}

/* Packet animation trigger */
.flow-packet.active {
  display: block;
  animation: packet-flow-horizontal 2.2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* 3D Tilt perspective wrapper */
.tilt-card {
  transition: transform 0.15s ease-out;
  will-change: transform;
}

/* Toast notification */
.toast-notification {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: rgba(13, 20, 36, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--cyan-primary);
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), var(--shadow-cyan);
  z-index: 10000;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-smooth);
}

.toast-notification.show {
  transform: translateY(0);
  opacity: 1;
}

/* Scroll indicator animation */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.scroll-indicator:hover {
  opacity: 1;
  color: var(--cyan-primary);
}

.mouse-scroll-icon {
  width: 22px;
  height: 36px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}

.mouse-scroll-icon::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 6px;
  background: var(--cyan-primary);
  border-radius: 2px;
  animation: mouse-wheel 1.6s infinite;
}

@keyframes mouse-wheel {
  0% { transform: translate(-50%, 0); opacity: 1; }
  100% { transform: translate(-50%, 14px); opacity: 0; }
}

/* Copy-Paste Safety: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .animate-float,
  .scanline-effect,
  .flow-packet.active {
    animation: none !important;
  }
}