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

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

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

@keyframes borderGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(102, 126, 234, 0.6);
    }
}

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

.animate-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

.animate-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-left.animated {
    opacity: 1;
    transform: translateX(0);
}

.animate-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-right.animated {
    opacity: 1;
    transform: translateX(0);
}

.animate-scale {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-scale.animated {
    opacity: 1;
    transform: scale(1);
}

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

.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

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

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

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

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

/* ===================================
   TEXT ANIMATIONS
   =================================== */

.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-animated {
    background: linear-gradient(
        90deg,
        #667eea 0%,
        #764ba2 25%,
        #f093fb 50%,
        #764ba2 75%,
        #667eea 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s linear infinite;
}

.typing-effect {
    overflow: hidden;
    border-right: 2px solid;
    white-space: nowrap;
    animation: typing 3.5s steps(40) 1s 1 normal both,
               blink 0.7s step-end infinite;
}

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

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

/* ===================================
   BACKGROUND ANIMATIONS
   =================================== */

.animated-gradient {
    background: linear-gradient(
        135deg,
        #667eea 0%,
        #764ba2 25%,
        #667eea 50%,
        #764ba2 75%,
        #667eea 100%
    );
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

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

/* ===================================
   LOADING ANIMATIONS
   =================================== */

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(102, 126, 234, 0.2);
    border-top-color: #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.dots-loading {
    display: inline-flex;
    gap: 0.5rem;
}

.dots-loading span {
    width: 10px;
    height: 10px;
    background: #667eea;
    border-radius: 50%;
    animation: dotPulse 1.4s ease-in-out infinite;
}

.dots-loading span:nth-child(2) {
    animation-delay: 0.2s;
}

.dots-loading span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes dotPulse {
    0%, 80%, 100% {
        transform: scale(0);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* ===================================
   ENTRANCE ANIMATIONS
   =================================== */

.fade-in {
    animation: fadeIn 1s ease;
}

.fade-in-up {
    animation: fadeInUp 1s ease;
}

.slide-in-left {
    animation: slideInLeft 1s ease;
}

.slide-in-right {
    animation: slideInRight 1s ease;
}

.scale-in {
    animation: scaleIn 1s ease;
}

/* Delay utilities */
.delay-1 {
    animation-delay: 0.1s;
}

.delay-2 {
    animation-delay: 0.2s;
}

.delay-3 {
    animation-delay: 0.3s;
}

.delay-4 {
    animation-delay: 0.4s;
}

.delay-5 {
    animation-delay: 0.5s;
}

/* ===================================
   PARTICLE EFFECTS
   =================================== */

.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.particle-1 {
    width: 4px;
    height: 4px;
    background: rgba(102, 126, 234, 0.6);
    animation: float 6s ease-in-out infinite;
}

.particle-2 {
    width: 6px;
    height: 6px;
    background: rgba(118, 75, 162, 0.5);
    animation: float 8s ease-in-out infinite;
}

.particle-3 {
    width: 3px;
    height: 3px;
    background: rgba(240, 147, 251, 0.7);
    animation: float 10s ease-in-out infinite;
}

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

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

.glow-on-hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.3s ease;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.6);
}

.glow-on-hover:hover::before {
    opacity: 1;
}

.shine-effect {
    position: relative;
    overflow: hidden;
}

.shine-effect::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: left 0.5s ease;
}

.shine-effect:hover::after {
    left: 100%;
}

/* ===================================
   RIPPLE EFFECT
   =================================== */

.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.ripple:active::after {
    width: 300px;
    height: 300px;
}

/* ===================================
   STAGGER ANIMATIONS
   =================================== */

.stagger-fade > * {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.stagger-fade > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-fade > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-fade > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-fade > *:nth-child(4) { animation-delay: 0.4s; }
.stagger-fade > *:nth-child(5) { animation-delay: 0.5s; }
.stagger-fade > *:nth-child(6) { animation-delay: 0.6s; }

/* ===================================
   PERFORMANCE OPTIMIZATIONS
   =================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}