/* DSIT Custom Transitions & Subtle Animations */

/* --- KEYFRAMES --- */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulseGlow {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(37, 99, 235, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
  }
}

@keyframes pulseGlowCyan {
  0% {
    box-shadow: 0 0 0 0 rgba(14, 165, 233, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(14, 165, 233, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(14, 165, 233, 0);
  }
}

@keyframes gridPan {
  0% {
    background-position: 0% 0%;
  }
  100% {
    background-position: 40px 40px;
  }
}

@keyframes dataStreamHorizontal {
  0% {
    stroke-dashoffset: 24;
  }
  100% {
    stroke-dashoffset: 0;
  }
}

/* --- ANIMATION CLASSES --- */

.animate-fade-in {
  animation: fadeIn var(--transition-slow) forwards;
}

.animate-slide-up {
  animation: slideUp var(--transition-slow) forwards;
}

.animate-slide-in-right {
  animation: slideInRight var(--transition-normal) forwards;
}

.animate-pulse-glow {
  animation: pulseGlow 2s infinite;
}

.animate-pulse-glow-cyan {
  animation: pulseGlowCyan 2s infinite;
}

/* Data Stream flow visual */
.data-flow-line {
  stroke-dasharray: 8, 4;
  animation: dataStreamHorizontal 1.5s linear infinite;
}

/* Decorative grid pattern behind premium sections */
.bg-grid-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(to right, var(--border-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-color) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, #000 70%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, #000 70%, transparent 100%);
  opacity: 0.25;
  pointer-events: none;
  animation: gridPan 20s linear infinite;
}

[data-theme="dark"] .bg-grid-pattern {
  opacity: 0.12;
}

/* Blur decorative light blobs */
.brand-blob {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: var(--border-radius-full);
  filter: blur(120px);
  z-index: 0;
  pointer-events: none;
  opacity: 0.15;
}

[data-theme="dark"] .brand-blob {
  opacity: 0.1;
}

.brand-blob-sapphire {
  background-color: var(--brand-sapphire);
  top: -50px;
  left: 10%;
}

.brand-blob-cyan {
  background-color: var(--brand-cyan);
  bottom: -50px;
  right: 10%;
}