/* ========================================
   ANIMATIONS.CSS - Premium Micro-Interactions
   ======================================== */

/* === ENTRANCE 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 fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

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

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

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

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

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

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

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

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

@keyframes pulse {

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

    50% {
        opacity: 0.7;
        transform: scale(1.05);
    }
}

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

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

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(90deg,
            var(--secondary-bg) 25%,
            rgba(255, 255, 255, 0.05) 50%,
            var(--secondary-bg) 75%);
    background-size: 2000px 100%;
    animation: shimmer 2s infinite linear;
    border-radius: 8px;
}

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

.hover-lift {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.hover-lift:hover {
    transform: translateY(-8px);
}

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

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.4);
    transform: translateY(-2px);
}

.hover-scale {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

/* === 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:active::before {
    width: 300px;
    height: 300px;
}

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

.btn-shine::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;
}

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

/* === NOTIFICATION ANIMATIONS === */

@keyframes slideInNotification {
    from {
        transform: translateX(400px);
        opacity: 0;
    }

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

@keyframes slideOutNotification {
    from {
        transform: translateX(0);
        opacity: 1;
    }

    to {
        transform: translateX(400px);
        opacity: 0;
    }
}

.notification-enter {
    animation: slideInNotification 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.notification-exit {
    animation: slideOutNotification 0.3s ease;
}

/* === MODAL ANIMATIONS === */

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes modalSlideUp {
    from {
        transform: translateY(100px);
        opacity: 0;
    }

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

.modal-backdrop {
    animation: modalFadeIn 0.3s ease;
}

.modal-content {
    animation: modalSlideUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

.animate-fade-in {
    animation: fadeIn 0.6s ease;
}

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

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

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

.animate-slide-in-left {
    animation: slideInLeft 0.5s ease;
}

.animate-slide-in-right {
    animation: slideInRight 0.5s ease;
}

/* Delay variants */
.delay-100 {
    animation-delay: 100ms;
}

.delay-200 {
    animation-delay: 200ms;
}

.delay-300 {
    animation-delay: 300ms;
}

.delay-400 {
    animation-delay: 400ms;
}

.delay-500 {
    animation-delay: 500ms;
}

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

.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* === FLOATING ANIMATION === */

@keyframes float {

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

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

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

/* === GRADIENT ANIMATION === */

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

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

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

.animated-gradient {
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
}

/* === TYPING ANIMATION === */

@keyframes typing {
    from {
        width: 0;
    }

    to {
        width: 100%;
    }
}

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

.typing-effect {
    overflow: hidden;
    border-right: 2px solid var(--accent-primary);
    white-space: nowrap;
    animation: typing 3.5s steps(40, end), blink 0.75s step-end infinite;
}

/* === REDUCE MOTION === */

@media (prefers-reduced-motion: reduce) {

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