/* ============================================
   NEXUS AI - Animations
   ============================================ */

/* ============================================
   KEYFRAME ANIMATIONS
   ============================================ */

/* Float Animation */
@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-30px) rotate(5deg);
    }
}

/* Particle Float */
@keyframes particle-float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

/* Pulse */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

/* Rotate */
@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Scroll (for logos) */
@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Spin */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Skeleton Loading */
@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Fade In */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Down */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Left */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Fade In Right */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Slide In Up */
@keyframes slideInUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

/* Glow Pulse */
@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(99, 102, 241, 0.6);
    }
}

/* Gradient Shift */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Border Gradient */
@keyframes borderGradient {
    0%, 100% {
        border-color: rgba(99, 102, 241, 0.3);
    }
    50% {
        border-color: rgba(168, 85, 247, 0.6);
    }
}

/* Typing Cursor */
@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

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

/* ============================================
   ANIMATION CLASSES
   ============================================ */

/* Initial States for Animations */
.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-fade-in-down {
    animation: fadeInDown 0.6s ease forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.6s ease forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 0.6s ease forwards;
}

.animate-scale-in {
    animation: scaleIn 0.6s ease forwards;
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

/* Animation Delays */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }
.delay-700 { animation-delay: 0.7s; }
.delay-800 { animation-delay: 0.8s; }

/* ============================================
   HOVER EFFECTS
   ============================================ */

/* Scale on Hover */
.hover-scale {
    transition: transform var(--transition-base);
}

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

/* Lift on Hover */
.hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Glow on Hover */
.hover-glow {
    transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.4);
}

/* Border Glow on Hover */
.hover-border-glow {
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.hover-border-glow:hover {
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
}

/* Color Shift on Hover */
.hover-color-shift {
    transition: color var(--transition-base);
}

.hover-color-shift:hover {
    color: var(--color-accent-primary);
}

/* Background Shift on Hover */
.hover-bg-shift {
    transition: background var(--transition-base);
}

.hover-bg-shift:hover {
    background: rgba(99, 102, 241, 0.1);
}

/* Rotate on Hover */
.hover-rotate {
    transition: transform var(--transition-base);
}

.hover-rotate:hover {
    transform: rotate(5deg);
}

/* Flip on Hover */
.hover-flip {
    transition: transform var(--transition-base);
    transform-style: preserve-3d;
}

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

/* Underline Animation */
.hover-underline {
    position: relative;
}

.hover-underline::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.hover-underline:hover::after {
    width: 100%;
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */

/* Base styles for scroll-animated elements */
[data-animate="fade"] {
    opacity: 0;
    transition: opacity 0.6s ease;
}

[data-animate="fade"].animated {
    opacity: 1;
}

[data-animate="slide-up"] {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="slide-up"].animated {
    opacity: 1;
    transform: translateY(0);
}

[data-animate="slide-down"] {
    opacity: 0;
    transform: translateY(-40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="slide-down"].animated {
    opacity: 1;
    transform: translateY(0);
}

[data-animate="slide-left"] {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="slide-left"].animated {
    opacity: 1;
    transform: translateX(0);
}

[data-animate="slide-right"] {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="slide-right"].animated {
    opacity: 1;
    transform: translateX(0);
}

[data-animate="zoom"] {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="zoom"].animated {
    opacity: 1;
    transform: scale(1);
}

[data-animate="card"] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

[data-animate="card"].animated {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation delays for children */
.stagger-children > *:nth-child(1) { transition-delay: 0s; }
.stagger-children > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children > *:nth-child(3) { transition-delay: 0.2s; }
.stagger-children > *:nth-child(4) { transition-delay: 0.3s; }
.stagger-children > *:nth-child(5) { transition-delay: 0.4s; }
.stagger-children > *:nth-child(6) { transition-delay: 0.5s; }
.stagger-children > *:nth-child(7) { transition-delay: 0.6s; }
.stagger-children > *:nth-child(8) { transition-delay: 0.7s; }

/* ============================================
   SPECIAL EFFECTS
   ============================================ */

/* Gradient Text Animation */
.gradient-text-animate {
    background: linear-gradient(
        90deg,
        #6366f1 0%,
        #a855f7 25%,
        #ec4899 50%,
        #a855f7 75%,
        #6366f1 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s linear infinite;
}

/* Border Gradient Animation */
.border-gradient {
    position: relative;
    background: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
}

.border-gradient::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: linear-gradient(
        135deg,
        #6366f1,
        #a855f7,
        #ec4899,
        #a855f7,
        #6366f1
    );
    background-size: 400% 400%;
    border-radius: inherit;
    z-index: -1;
    animation: gradientShift 4s ease infinite;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

/* Shimmer Effect */
.shimmer {
    position: relative;
    overflow: hidden;
}

.shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    animation: shimmer 2s infinite;
}

/* Noise Texture Overlay */
.noise-overlay {
    position: relative;
}

.noise-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 1;
}

/* Blur Load Effect */
.blur-load {
    filter: blur(10px);
    transition: filter 0.5s ease;
}

.blur-load.loaded {
    filter: blur(0);
}

/* ============================================
   PARALLAX EFFECTS
   ============================================ */

.parallax {
    transform: translateZ(0);
    will-change: transform;
}

/* ============================================
   REDUCED MOTION
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    [data-animate] {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* ============================================
   UTILITY ANIMATIONS
   ============================================ */

/* Spin Utility */
.spin {
    animation: spin 1s linear infinite;
}

/* Pulse Utility */
.pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* Bounce */
.bounce {
    animation: float 2s ease-in-out infinite;
}

/* Ping */
.ping {
    animation: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
    75%, 100% {
        transform: scale(2);
        opacity: 0;
    }
}

/* Wiggle */
.wiggle {
    animation: wiggle 1s ease-in-out infinite;
}

@keyframes wiggle {
    0%, 100% { transform: rotate(-3deg); }
    50% { transform: rotate(3deg); }
}

/* Heartbeat */
.heartbeat {
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0% { transform: scale(1); }
    14% { transform: scale(1.1); }
    28% { transform: scale(1); }
    42% { transform: scale(1.1); }
    70% { transform: scale(1); }
}