/**
 * timeline.css
 * "La giornata - Cinque momenti per smettere di indovinare e iniziare a capire"
 *
 * Mobile: ogni step impilato (foto sopra, testo sotto), nessuna linea decorativa
 * (su schermi stretti aggiungerebbe complessità senza valore).
 * Desktop (>=900px): zig-zag a due colonne con linea verticale + pallini rossi.
 */

.timeline-section {
    padding-block: var(--space-6);
}

.timeline-section__intro {
    text-align: center;
    max-width: 700px;
    margin-inline: auto;
}

.timeline-section__title {
    margin-top: var(--space-1);
    font-size: clamp(1.6rem, 4.5vw, 2.3rem);
    line-height: 1.15;
}

.timeline-section__intro-cta {
    margin-top: var(--space-3);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

/* --- Lista step --- */
.timeline {
    position: relative;
    list-style: none;
    margin-top: var(--space-6);
}

.timeline__step {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding-block: var(--space-4);
}

.timeline__step + .timeline__step {
    margin-top: var(--space-4);
}

.timeline__dot {
    display: none; /* visibile solo da desktop, vedi media query */
}

.timeline__media img {
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.timeline__headline {
    font-size: clamp(1.15rem, 2.6vw, 1.5rem);
    line-height: 1.2;
    color: var(--color-dark);
    text-transform: uppercase;
}

.timeline__label {
    margin-top: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    font-weight: 700;
    color: var(--color-text-body);
    font-size: 1rem;
}

.timeline__desc {
    margin-top: var(--space-2);
    max-width: 46ch;
}

.timeline__cta {
    margin-top: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.timeline__cta .link-arrow {
    color: var(--color-dark);
}

/* --- Desktop: zig-zag a due colonne + linea/pallini --- */
@media (min-width: 900px) {
    .timeline::before {
        content: '';
        position: absolute;
        left: 50%;
        top: 0;
        bottom: 0;
        width: 1px;
        background: #e2e2e2;
        transform: translateX(-50%);
    }

    .timeline__step {
        display: grid;
        grid-template-columns: 1fr 1fr;
        align-items: center;
        gap: var(--space-6);
    }

    .timeline__dot {
        display: block;
        position: absolute;
        top: 0;
        left: 50%;
        width: 44px;
        height: 44px;
        border-radius: 50%;
        background: var(--color-red);
        border: 6px solid var(--color-white);
        transform: translate(-50%, -12px);
        z-index: 1;
    }

    /* Alterna la posizione di foto/testo: pari = foto a sx, dispari = foto a dx */
    .timeline__step--media-right .timeline__media {
        order: 2;
    }

    .timeline__step--media-right .timeline__content {
        order: 1;
    }
}