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

.article-card {
    animation: slideUp 0.6s ease forwards;
}

.article-card:nth-child(1) {
    animation-delay: 0.1s;
}

.article-card:nth-child(2) {
    animation-delay: 0.2s;
}

.article-card:nth-child(3) {
    animation-delay: 0.3s;
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--verde-pastel), var(--verde-muito-claro));
    z-index: 1;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.article-card:hover::before {
    opacity: 0.1;
}

@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

.loading {
    animation: pulse 1.5s infinite;
    text-align: center;
    padding: 50px;
    font-size: 1.2rem;
    color: var(--verde-medio);
}

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

.content-loaded {
    animation: fadeIn 0.5s ease forwards;
}

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

.hover-lift:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.link-underline {
    position: relative;
    text-decoration: none;
}

.link-underline::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--verde-medio);
    transition: width 0.3s ease;
}

.link-underline:hover::after {
    width: 100%;
}

@keyframes shimmer {
    0% {
        background-position: -200% center;
    }
    100% {
        background-position: 200% center;
    }
}

.shimmer-effect {
    background: linear-gradient(90deg, 
        var(--verde-pastel) 0%, 
        var(--branco) 25%, 
        var(--verde-pastel) 50%, 
        var(--branco) 75%, 
        var(--verde-pastel) 100%);
    background-size: 200% auto;
    animation: shimmer 3s infinite linear;
}