/* ============================================
   NexusTech — Animation System
   ============================================ */

/* --- Keyframes --- */
@keyframes auroraFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -40px) scale(1.1); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(40px, 30px) scale(1.05); }
}

@keyframes sphereFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

@keyframes sphereRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

@keyframes scrollLine {
  0% { opacity: 0; transform: translateY(-10px); }
  50% { opacity: 1; }
  100% { opacity: 0; transform: translateY(10px); }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes loaderFill {
  0% { width: 0; }
  100% { width: 100%; }
}

@keyframes bouncePin {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes floatShape {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(10px, -15px) rotate(5deg); }
  50% { transform: translate(-5px, -25px) rotate(-3deg); }
  75% { transform: translate(15px, -10px) rotate(4deg); }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes dashDraw {
  from { stroke-dashoffset: 1000; }
  to { stroke-dashoffset: 0; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(0,212,255,0.1); }
  50% { box-shadow: 0 0 40px rgba(0,212,255,0.25); }
}

@keyframes typewriter {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

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

@keyframes orbitPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.8; }
}

/* --- Scroll Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-scale.active {
  opacity: 1;
  transform: scale(1);
}

/* Staggered children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.stagger-children.active > *:nth-child(1) { transition-delay: 0s; }
.stagger-children.active > *:nth-child(2) { transition-delay: 0.08s; }
.stagger-children.active > *:nth-child(3) { transition-delay: 0.16s; }
.stagger-children.active > *:nth-child(4) { transition-delay: 0.24s; }
.stagger-children.active > *:nth-child(5) { transition-delay: 0.32s; }
.stagger-children.active > *:nth-child(6) { transition-delay: 0.40s; }
.stagger-children.active > *:nth-child(7) { transition-delay: 0.48s; }
.stagger-children.active > *:nth-child(8) { transition-delay: 0.56s; }
.stagger-children.active > *:nth-child(9) { transition-delay: 0.64s; }
.stagger-children.active > *:nth-child(10) { transition-delay: 0.72s; }
.stagger-children.active > *:nth-child(11) { transition-delay: 0.80s; }
.stagger-children.active > *:nth-child(12) { transition-delay: 0.88s; }

.stagger-children.active > * {
  opacity: 1;
  transform: translateY(0);
}

/* --- Hover Animations --- */
.hover-lift {
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.hover-glow {
  transition: box-shadow var(--transition-smooth);
}

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(0,212,255,0.15);
}

.hover-scale {
  transition: transform var(--transition-spring);
}

.hover-scale:hover {
  transform: scale(1.03);
}

/* --- Magnetic Button Effect (handled in JS) --- */
.magnetic {
  transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* --- Animated gradient border --- */
.gradient-border {
  position: relative;
}

.gradient-border::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--accent), var(--accent3), var(--accent2));
  background-size: 300% 300%;
  animation: gradientShift 6s ease infinite;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.gradient-border:hover::before {
  opacity: 1;
}

/* --- Floating Shapes --- */
.float-shape {
  position: absolute;
  pointer-events: none;
  opacity: 0.03;
}

.float-shape-1 {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  animation: floatShape 15s ease-in-out infinite;
}

.float-shape-2 {
  width: 200px;
  height: 200px;
  border-radius: 30%;
  border: 1px solid var(--accent2);
  animation: floatShape 20s ease-in-out infinite reverse;
}

.float-shape-3 {
  width: 150px;
  height: 150px;
  border: 1px solid var(--accent3);
  transform: rotate(45deg);
  animation: floatShape 18s ease-in-out infinite;
  animation-delay: -5s;
}

/* --- Animated Counter --- */
.counter {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}

/* --- Section Dividers --- */
.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

/* --- Parallax Layer --- */
.parallax-layer {
  will-change: transform;
  transition: transform 0.1s linear;
}

/* --- Text reveal animation --- */
.text-reveal {
  overflow: hidden;
}

.text-reveal span {
  display: inline-block;
  transform: translateY(100%);
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.text-reveal.active span {
  transform: translateY(0);
}

/* 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;
  }

  .reveal,
  .reveal-left,
  .reveal-right,
  .reveal-scale {
    opacity: 1;
    transform: none;
  }

  .stagger-children > * {
    opacity: 1;
    transform: none;
  }
}