/* === ANIMATIONS LIBRARY === */

/* --- Page Transitions --- */

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* --- Staggered Reveals --- */

.stagger-item {
    animation: fadeInUp 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) backwards;
}

.stagger-item:nth-child(1) {
    animation-delay: 0.1s;
}

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

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

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

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

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

.stagger-item:nth-child(7) {
    animation-delay: 0.7s;
}

.stagger-item:nth-child(8) {
    animation-delay: 0.8s;
}

/* --- Micro-interactions --- */

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

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

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

@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }

    100% {
        transform: scale(4);
        opacity: 0;
    }
}

@keyframes bounce {

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

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

@keyframes shake {

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

    25% {
        transform: translateX(-8px);
    }

    75% {
        transform: translateX(8px);
    }
}

/* --- Loading States --- */

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

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

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

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

@keyframes dots {

    0%,
    20% {
        content: '.';
    }

    40% {
        content: '..';
    }

    60%,
    100% {
        content: '...';
    }
}

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

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

.skeleton {
    background: linear-gradient(90deg,
            rgba(255, 255, 255, 0) 0%,
            rgba(255, 255, 255, 0.2) 20%,
            rgba(255, 255, 255, 0.5) 60%,
            rgba(255, 255, 255, 0));
    background-size: 200px 100%;
    animation: skeleton 1.2s ease-in-out infinite;
}

/* --- Progress Animations --- */

@keyframes progressFill {
    from {
        width: 0%;
    }
}

@keyframes circularProgress {
    0% {
        stroke-dashoffset: 283;
    }
}

/* --- Background Patterns --- */

@keyframes rotatePattern {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@keyframes floatPattern {

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

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

/* --- Gradient Animation --- */

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

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

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

/* --- Particle Effects --- */

@keyframes particle {
    0% {
        transform: translateY(0) translateX(0) scale(1);
        opacity: 1;
    }

    100% {
        transform: translateY(-100px) translateX(var(--particle-x, 0)) scale(0);
        opacity: 0;
    }
}

/* --- Success/Error Feedback --- */

@keyframes successPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 107, 122, 0.7);
    }

    70% {
        box-shadow: 0 0 0 20px rgba(255, 107, 122, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(255, 107, 122, 0);
    }
}

@keyframes errorShake {

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

    10%,
    30%,
    50%,
    70%,
    90% {
        transform: translateX(-10px);
    }

    20%,
    40%,
    60%,
    80% {
        transform: translateX(10px);
    }
}

/* --- Utility Classes --- */

.fade-in {
    animation: fadeInUp 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.fade-in-fast {
    animation: fadeInUp 0.3s ease-out forwards;
}

.fade-in-slow {
    animation: fadeInUp 1s ease-out forwards;
}

.scale-in {
    animation: fadeInScale 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.slide-in-right {
    animation: slideInRight 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.slide-in-left {
    animation: slideInLeft 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

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

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

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

.spin-slow {
    animation: spinSlow 3s linear infinite;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {

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