/* ========================= TIMELINE ========================= */
.timeline {
    position: relative;
    list-style: none;
    margin: 2rem auto;
    padding: 0 0 0 2.25rem; /* espacio para línea y badges */
    max-width: 850px;
}

/* Línea vertical */
.timeline::before {
    content: "";
    position: absolute;
    top: 0.25rem;
    bottom: 0;
    left: 1rem;
    width: 3px;
    background: linear-gradient(180deg, var(--gold), var(--purple-light));
    opacity: 0.9;
    border-radius: 2px;
}

/* Cada evento */
.timeline-item {
    position: relative;
    margin: 0 0 1.5rem 0;
}

/* Punto con icono */
.timeline-badge {
    position: absolute;
    left: 0.5rem;
    top: 0.35rem;
    width: 2.75rem;
    height: 2.75rem;
    background: var(--white);
    border: 3px solid var(--gold);
    color: var(--purple-light);
    border-radius: 50%;
    display: grid;
    place-items: center;
    box-shadow: 0 4px 10px var(--shadow);
    z-index: 2;
    transition: transform var(--transition);
}

.timeline-badge i {
    font-size: 1.5rem;
}

/* Tarjeta del evento */
.timeline-panel {
    background: var(--lilac);
    color: var(--purple-dark);
    border-left: 6px solid var(--gold);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    margin-left: 1.75rem;
    box-shadow: 0 4px 12px var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

/* Hover sutil */
.timeline-item:hover .timeline-panel {
    transform: translateY(-3px);
    box-shadow: 0 8px 18px var(--shadow);
}
.timeline-item:hover .timeline-badge {
    transform: scale(1.06);
}

/* Tipografías internas */
.timeline-time {
    font-weight: 700;
    color: var(--purple-dark);
    letter-spacing: 0.02em;
    margin-bottom: 0.25rem;
}

.timeline-title {
    margin: 0 0 0.25rem 0;
    font-size: 1.2rem;
    color: var(--purple-dark);
}

.timeline-text {
    margin: 0;
}


/* ========================= RESPONSIVE ========================= */
@media (min-width: 900px) {
    /* Diseño alterno izquierda/derecha en pantallas grandes */
    .timeline {
        padding-left: 0;
    }

    .timeline::before {
        left: 50%;
        margin-left: -1.5px; /* mitad del ancho de la línea */
    }

    .timeline-item {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
        align-items: start;
        margin: 0 0 2rem 0;
    }

    /* Alternar lados */
    .timeline-item:nth-child(odd) .timeline-panel {
        grid-column: 1 / 2;
        margin-left: 0;
    }
    .timeline-item:nth-child(even) .timeline-panel {
        grid-column: 2 / 3;
        margin-left: 0;
    }

    /* Badge centrado en la línea vertical */
    .timeline-badge {
        left: 50%;
        transform: translate(-50%, 0);
        top: 0.35rem;
    }

    .timeline-item:hover .timeline-badge {
        transform: translate(-50%, 0) scale(1.06);
    }
}

/* Pequeñas mejoras de accesibilidad */
.timeline-badge,
.timeline-panel,
.timeline-title,
.timeline-time {
    scroll-margin-top: 90px; /* por si haces anclas hacia eventos */
}