/* Animation and Transition Effects */

/* Fade-in Animation */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--dur-2) var(--ease-standard), transform var(--dur-2) var(--ease-standard);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Dynamic Background Circles */
#dynamic-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
}

.circle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
  animation: float 6s ease-in-out infinite;
}

.circle1 {
  width: 80px;
  height: 80px;
  background: linear-gradient(45deg, #14b8a6, #38bdf8);
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.circle2 {
  width: 120px;
  height: 120px;
  background: linear-gradient(45deg, #38bdf8, #0a192f);
  top: 60%;
  right: 15%;
  animation-delay: 2s;
}

.circle3 {
  width: 60px;
  height: 60px;
  background: linear-gradient(45deg, #0a192f, #14b8a6);
  bottom: 20%;
  left: 20%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

/* Glassmorphism Highlight Effect */
.glass-highlight {
  position: absolute;
  top: var(--y, 50%);
  left: var(--x, 50%);
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  transition: all 0.3s ease;
  z-index: 4;
}

/* Hover Transitions */
.transition-all {
  transition: all var(--dur-1) var(--ease-standard);
}

.hover-scale:hover {
  transform: scale(1.05);
}

.hover-lift:hover {
  transform: translateY(-2px);
}

/* Loading Animation */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Smooth Transitions */
.smooth-transition {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Image Hover Effects */
.image-hover-scale {
  transition: transform var(--dur-3) var(--ease-emphasized);
}

.image-hover-scale:hover {
  transform: scale(1.05);
}

/* Text Animations */
.typewriter {
  overflow: hidden;
  border-right: 0.15em solid #14b8a6;
  white-space: nowrap;
  margin: 0 auto;
  letter-spacing: 0.15em;
  animation: typing 3.5s steps(40, end), blink-caret 0.75s step-end infinite;
}

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

@keyframes blink-caret {
  from, to { border-color: transparent; }
  50% { border-color: #14b8a6; }
}

/* Enhanced typewriter animation for header */
h1 {
  transition: opacity var(--dur-1) var(--ease-standard),
              transform var(--dur-1) var(--ease-standard);
  text-align: inherit; /* Inherit alignment from parent */
  position: relative;
  min-height: 1.2em; /* Prevent layout shift during animation */
  display: inline-block;
  width: auto;
  /* Performance optimizations */
  will-change: opacity, transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

/* Typewriter active state */
h1.typewriter-active {
  transition: opacity var(--dur-1) var(--ease-standard),
              transform var(--dur-1) var(--ease-standard);
}

/* Smooth cursor effect */
h1.typewriter-active::after {
  content: '|';
  color: #14b8a6;
  animation: blink-smooth 1.2s infinite;
  margin-left: 2px;
  font-weight: 300;
}

/* Improved blinking cursor animation */
@keyframes blink-smooth {
  0%, 50% {
    opacity: 1;
    transform: scaleY(1);
  }
  51%, 100% {
    opacity: 0.3;
    transform: scaleY(0.8);
  }
}

/* Hover effect for completed animation */
h1:not(.typewriter-active):hover {
  transform: translateY(-1px);
  text-shadow: 0 2px 8px rgba(20, 184, 166, 0.2);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  h1 {
    min-height: 1.1em;
  }

  h1.typewriter-active::after {
    margin-left: 1px;
  }
}

/* Stagger Animation */
.stagger-animation {
  animation-delay: calc(var(--stagger) * 0.1s);
}

/* Reveal animation system */
.reveal {
  opacity: 0;
  transform: translateY(12px) scale(.98);
  transition: opacity var(--dur-2) var(--ease-standard), transform var(--dur-2) var(--ease-standard);
  will-change: opacity, transform;
}

.reveal.is-visible { opacity: 1; transform: translateY(0) scale(1); }
.reveal.slide-left { transform: translateX(14px); }
.reveal.slide-right { transform: translateX(-14px); }
.reveal.fade-scale { transform: scale(.97); }

/* Reduced motion accessiblity */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}