.artigrid-timeline {
    position: relative;
    padding: 20px 0;
}
.artigrid-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 20px;
    width: 3px;
    background: linear-gradient(to bottom, #0d6efd, #6ea8fe);
    border-radius: 3px;
}
.artigrid-tl-item {
    position: relative;
    padding-left: 56px;
    margin-bottom: 26px;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity .4s ease, transform .4s ease;
}
.artigrid-tl-item.is-visible {
    opacity: 1;
    transform: translateY(0);
}
.artigrid-tl-dot {
    position: absolute;
    left: 9px;
    top: 4px;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: #0d6efd;
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px #0d6efd;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 12px;
    z-index: 2;
}
.artigrid-tl-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    padding: 12px 16px;
    box-shadow: 0 1px 4px rgba(0,0,0,.06);
    transition: box-shadow .2s ease, transform .2s ease;
}
.artigrid-tl-card:hover {
    box-shadow: 0 4px 14px rgba(0,0,0,.12);
    transform: translateY(-2px);
}
.artigrid-tl-date {
    font-size: 12px;
    font-weight: 600;
    color: #0d6efd;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: .3px;
}
.artigrid-tl-title {
    font-size: 15px;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 4px;
}
.artigrid-tl-content {
    font-size: 13px;
    color: #4b5563;
    line-height: 1.5;
}
.artigrid-tl-actions {
    margin-top: 8px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* Alternado */
@media (min-width: 768px) {
    .artigrid-timeline-align-alternate::before { left: 50%; transform: translateX(-50%); }
    .artigrid-timeline-align-alternate .artigrid-tl-item {
        width: 50%;
        padding-left: 0;
        padding-right: 40px;
    }
    .artigrid-timeline-align-alternate .artigrid-tl-item .artigrid-tl-dot {
        left: auto; right: -13px;
    }
    .artigrid-timeline-align-alternate .artigrid-tl-item.tl-right {
        margin-left: 50%;
        padding-left: 40px;
        padding-right: 0;
    }
    .artigrid-timeline-align-alternate .artigrid-tl-item.tl-right .artigrid-tl-dot {
        left: -13px; right: auto;
    }

    /* Derecha */
    .artigrid-timeline-align-right::before { left: auto; right: 20px; }
    .artigrid-timeline-align-right .artigrid-tl-item {
        padding-left: 0; padding-right: 56px; text-align: right;
    }
    .artigrid-timeline-align-right .artigrid-tl-dot { left: auto; right: 9px; }
    .artigrid-timeline-align-right .artigrid-tl-actions { justify-content: flex-end; }
}

.artigrid-tl-empty { text-align: center; color: #9ca3af; padding: 30px; }