/* ============================================
   ANIMATIONS & TRANSITIONS
   Smooth, Professional Micro-interactions
   ============================================ */

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* Stagger animations for lists */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-item.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Add delays for stagger effect */
.stagger-item:nth-child(1) {
    transition-delay: 0.1s;
}

.stagger-item:nth-child(2) {
    transition-delay: 0.2s;
}

.stagger-item:nth-child(3) {
    transition-delay: 0.3s;
}

.stagger-item:nth-child(4) {
    transition-delay: 0.4s;
}

.stagger-item:nth-child(5) {
    transition-delay: 0.5s;
}

.stagger-item:nth-child(6) {
    transition-delay: 0.6s;
}

/* ============================================
   HOVER ANIMATIONS
   ============================================ */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
}

.hover-glow {
    position: relative;
    transition: all 0.3s ease;
}

.hover-glow::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    opacity: 0;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.hover-glow:hover::after {
    opacity: 1;
}

.hover-scale {
    transition: transform 0.3s ease;
}

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

/* ============================================
   LOADING ANIMATIONS
   ============================================ */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.spin {
    animation: spin 1s linear infinite;
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

.bounce {
    animation: bounce 1s ease-in-out infinite;
}

/* ============================================
   GRADIENT ANIMATIONS
   ============================================ */
@keyframes gradientFlow {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.animated-gradient {
    background-size: 200% 200%;
    animation: gradientFlow 5s ease infinite;
}

/* ============================================
   TEXT ANIMATIONS
   ============================================ */
@keyframes typewriter {
    from {
        width: 0;
    }

    to {
        width: 100%;
    }
}

@keyframes blink {
    50% {
        border-color: transparent;
    }
}

.typewriter {
    overflow: hidden;
    border-right: 3px solid var(--color-accent-blue);
    white-space: nowrap;
    animation: typewriter 3s steps(40) 1s forwards, blink 0.75s step-end infinite;
}

/* ============================================
   PARTICLE EFFECTS
   ============================================ */
@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

.floating {
    animation: float 3s ease-in-out infinite;
}

/* ============================================
   BUTTON ANIMATIONS
   ============================================ */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-ripple:hover::before {
    width: 300px;
    height: 300px;
}

/* ============================================
   PROGRESS BARS
   ============================================ */
@keyframes progressFill {
    from {
        width: 0%;
    }
}

.progress-bar {
    height: 8px;
    background: var(--color-bg-tertiary);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 10px;
    animation: progressFill 1.5s ease-out forwards;
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.3),
            transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(100%);
    }
}

/* ============================================
   CARD FLIP ANIMATION
   ============================================ */
.flip-card {
    perspective: 1000px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
}

.flip-card-back {
    transform: rotateY(180deg);
}

/* ============================================
   GLITCH EFFECT
   ============================================ */
@keyframes glitch {
    0% {
        transform: translate(0);
    }

    20% {
        transform: translate(-2px, 2px);
    }

    40% {
        transform: translate(-2px, -2px);
    }

    60% {
        transform: translate(2px, 2px);
    }

    80% {
        transform: translate(2px, -2px);
    }

    100% {
        transform: translate(0);
    }
}

.glitch {
    position: relative;
}

.glitch:hover {
    animation: glitch 0.3s ease;
}

/* ============================================
   SMOOTH REVEAL
   ============================================ */
@keyframes reveal {
    from {
        clip-path: inset(0 100% 0 0);
    }

    to {
        clip-path: inset(0 0 0 0);
    }
}

.reveal {
    animation: reveal 1s ease-out forwards;
}

/* ============================================
   NEON GLOW EFFECT
   ============================================ */
@keyframes neonGlow {

    0%,
    100% {
        text-shadow:
            0 0 5px var(--color-accent-blue),
            0 0 10px var(--color-accent-blue),
            0 0 20px var(--color-accent-blue);
    }

    50% {
        text-shadow:
            0 0 10px var(--color-accent-blue),
            0 0 20px var(--color-accent-blue),
            0 0 40px var(--color-accent-blue);
    }
}

.neon-text {
    animation: neonGlow 2s ease-in-out infinite;
}

/* ============================================
   SCROLL INDICATOR
   ============================================ */
@keyframes scrollDown {
    0% {
        transform: translateY(0);
        opacity: 0;
    }

    50% {
        opacity: 1;
    }

    100% {
        transform: translateY(20px);
        opacity: 0;
    }
}

.scroll-indicator {
    animation: scrollDown 2s ease-in-out infinite;
}

/* ============================================
   SKELETON LOADING
   ============================================ */
@keyframes skeleton {
    0% {
        background-position: -200px 0;
    }

    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.skeleton {
    background: linear-gradient(90deg,
            var(--color-bg-secondary) 0px,
            var(--color-bg-tertiary) 40px,
            var(--color-bg-secondary) 80px);
    background-size: 200px 100%;
    animation: skeleton 1.5s infinite;
}

/* ============================================
   PERFORMANCE OPTIMIZATIONS
   ============================================ */
.will-change-transform {
    will-change: transform;
}

.will-change-opacity {
    will-change: opacity;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}