/* ============================================
   ANIMATION UTILITIES
   Smooth, Professional Animations
   ============================================ */

/* -------------------- COUNTER ANIMATION -------------------- */
.counter {
    font-variant-numeric: tabular-nums;
    display: inline-block;
}

/* -------------------- LOADING SKELETON -------------------- */
.skeleton {
    background: linear-gradient(90deg,
            var(--gray-light) 25%,
            #f0f0f0 50%,
            var(--gray-light) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 1em;
    margin-bottom: 0.5em;
}

.skeleton-circle {
    border-radius: 50%;
}

/* -------------------- 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;
}

/* -------------------- SPIN ANIMATION -------------------- */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }

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

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

/* -------------------- BOUNCE ANIMATION -------------------- */
@keyframes bounce {

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

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

.bounce {
    animation: bounce 1s infinite;
}

/* -------------------- FADE ANIMATIONS -------------------- */
@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 fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

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

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

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

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

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

/* -------------------- SCALE ANIMATIONS -------------------- */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

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

.scale-in {
    animation: scaleIn 0.4s ease-out;
}

/* -------------------- GLOW EFFECT -------------------- */
@keyframes glow {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
    }

    50% {
        box-shadow: 0 0 40px rgba(102, 126, 234, 0.8);
    }
}

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

/* -------------------- SLIDE ANIMATIONS -------------------- */
@keyframes slideInFromTop {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }

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

@keyframes slideInFromBottom {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

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

.slide-in-top {
    animation: slideInFromTop 0.5s ease-out;
}

.slide-in-bottom {
    animation: slideInFromBottom 0.5s ease-out;
}

/* -------------------- SHAKE ANIMATION -------------------- */
@keyframes shake {

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

    10%,
    30%,
    50%,
    70%,
    90% {
        transform: translateX(-5px);
    }

    20%,
    40%,
    60%,
    80% {
        transform: translateX(5px);
    }
}

.shake {
    animation: shake 0.5s;
}

/* -------------------- HEARTBEAT ANIMATION -------------------- */
@keyframes heartbeat {

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

    10%,
    30% {
        transform: scale(1.1);
    }

    20%,
    40% {
        transform: scale(1);
    }
}

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

/* -------------------- ROTATE ANIMATION -------------------- */
@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

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

.rotate {
    animation: rotate 2s linear infinite;
}

/* -------------------- FLOAT ANIMATION -------------------- */
@keyframes float {

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

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

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

/* -------------------- UTILITY CLASSES -------------------- */
.animate-delay-1 {
    animation-delay: 0.1s;
}

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

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

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

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

.animate-duration-fast {
    animation-duration: 0.3s;
}

.animate-duration-normal {
    animation-duration: 0.6s;
}

.animate-duration-slow {
    animation-duration: 1s;
}

/* -------------------- HOVER TRANSITIONS -------------------- */
.transition-all {
    transition: all var(--transition-base);
}

.transition-transform {
    transition: transform var(--transition-base);
}

.transition-opacity {
    transition: opacity var(--transition-base);
}

.transition-colors {
    transition: background-color var(--transition-base), color var(--transition-base);
}