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

@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);
    }
}

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

@keyframes slideInUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

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

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

.animate-fade-in {
    animation: fadeIn 0.6s var(--transition-base);
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s var(--transition-smooth);
}

.animate-fade-in-down {
    animation: fadeInDown 0.8s var(--transition-smooth);
}

.animate-fade-in-left {
    animation: fadeInLeft 0.8s var(--transition-smooth);
}

.animate-fade-in-right {
    animation: fadeInRight 0.8s var(--transition-smooth);
}

.animate-scale-in {
    animation: scaleIn 0.6s var(--transition-smooth);
}

.animate-pulse {
    animation: pulse 2s infinite;
}

.stagger-item {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s var(--transition-smooth);
}

.stagger-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.stagger-item:nth-child(1) { transition-delay: 0.1s; }
.stagger-item:nth-child(2) { transition-delay: 0.2s; }
.stagger-item:nth-child(3) { transition-delay: 0.3s; }
.stagger-item:nth-child(4) { transition-delay: 0.4s; }
.stagger-item:nth-child(5) { transition-delay: 0.5s; }
.stagger-item:nth-child(6) { transition-delay: 0.6s; }
.stagger-item:nth-child(7) { transition-delay: 0.7s; }
.stagger-item:nth-child(8) { transition-delay: 0.8s; }

.loading-skeleton {
    background: linear-gradient(
        90deg,
        var(--color-gray-200) 0%,
        var(--color-gray-100) 50%,
        var(--color-gray-200) 100%
    );
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
    border-radius: 8px;
}

.hover-lift {
    transition: transform 0.3s var(--transition-base), box-shadow 0.3s var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.hover-scale {
    transition: transform 0.3s var(--transition-base);
}

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

.hover-brightness {
    transition: filter 0.3s var(--transition-base);
}

.hover-brightness:hover {
    filter: brightness(1.1);
}

.smooth-scroll {
    scroll-behavior: smooth;
}

.parallax {
    transition: transform 0.5s var(--transition-smooth);
}

.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s var(--transition-smooth);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-100px);
    transition: all 0.8s var(--transition-smooth);
}

.slide-in-left.active {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(100px);
    transition: all 0.8s var(--transition-smooth);
}

.slide-in-right.active {
    opacity: 1;
    transform: translateX(0);
}

.zoom-in {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.6s var(--transition-smooth);
}

.zoom-in.active {
    opacity: 1;
    transform: scale(1);
}

.rotate-in {
    opacity: 0;
    transform: rotate(-10deg) scale(0.9);
    transition: all 0.6s var(--transition-smooth);
}

.rotate-in.active {
    opacity: 1;
    transform: rotate(0) scale(1);
}

.blur-in {
    opacity: 0;
    filter: blur(10px);
    transition: all 0.8s var(--transition-smooth);
}

.blur-in.active {
    opacity: 1;
    filter: blur(0);
}

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