/* Portfolio "flow" — card che scorrono in diagonale legate allo scroll
   (ispirazione: wisprflow.ai). Desktop: sezione fissata (sticky).
   Mobile / reduced-motion: lista verticale con ingresso inclinato. */

#section-portfolio.pf {
    --pf-accent: var(--primary-color, #cadb2d);
    --pf-card-bg: #1f2326;
    --pf-card-w: clamp(260px, 26vw, 380px);
    position: relative;
    padding: 90px 0 0;
}

/* ---------- card (tutte uguali, nei colori del sito) ---------- */
.pf-card {
    position: relative;
    display: flex;
    flex-direction: column;
    width: var(--pf-card-w);
    border-radius: 0;               /* blocchi squadrati come il resto del sito */
    padding: 12px;
    text-decoration: none !important;
    background: var(--pf-card-bg);
    border: 1px solid rgba(255, 255, 255, .08);
    box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .65);
    cursor: pointer;
    outline: none;
    transition: border-color .3s, box-shadow .3s;
}
.pf-card__media {
    position: relative;
    aspect-ratio: 4 / 3;
    border-radius: 0;
    overflow: hidden;
    background: #000;
}
.pf-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transform: scale(1.04);
    transition: transform .6s cubic-bezier(.2, .7, .2, 1);
}
.pf-card__body {
    padding: 16px 10px 8px;
}
#section-portfolio .pf-card__tag {
    display: inline-block;
    font-size: 10.5px;
    font-weight: 800;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--pf-accent);
    margin-bottom: 6px;
}
#section-portfolio .pf-card__title {
    font-family: "Raleway", sans-serif;
    font-weight: 800;
    font-size: 22px;
    line-height: 1.12;
    letter-spacing: -.01em;
    margin: 0 0 12px;
    color: #fff;
}
#section-portfolio .pf-card__cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 11.5px;
    font-weight: 800;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: #fff;
    transition: color .3s;
}
.pf-card__cta::after {
    content: "\2192";
    font-size: 15px;
    transition: transform .3s;
}
.pf-card:hover,
.pf-card:focus-visible { border-color: rgba(var(--primary-color-rgb, 202, 219, 45), .6); }
.pf-card:hover .pf-card__media img,
.pf-card:focus-visible .pf-card__media img { transform: scale(1.1); }
#section-portfolio .pf-card:hover .pf-card__cta,
#section-portfolio .pf-card:focus-visible .pf-card__cta { color: var(--pf-accent); }
.pf-card:hover .pf-card__cta::after,
.pf-card:focus-visible .pf-card__cta::after { transform: translateX(6px); }
.pf-card:focus-visible { box-shadow: 0 0 0 3px var(--pf-accent), 0 30px 60px -20px rgba(0, 0, 0, .65); }

/* ---------- layout di base (mobile): lista verticale ---------- */
.pf-track {
    display: grid;
    gap: 34px;
    justify-items: center;
    padding: 30px 16px 100px;
}
.pf-track .pf-card {
    width: min(100%, 420px);
    will-change: transform, opacity;
}
.pf-progress { display: none; }

/* ---------- coltellino svizzero (sfondo della sezione) ---------- */
.pf-knife {
    display: block;
    width: min(92vw, 560px);
    height: auto;
    margin: 0 auto -20px;
    overflow: visible;
    pointer-events: none;
    user-select: none;
}
.pf-knife path,
.pf-knife__body {
    fill: rgba(255, 255, 255, .03);
    stroke: rgba(255, 255, 255, .24);
    stroke-width: 2;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
}
.pf-knife__body { fill: rgba(22, 25, 27, .92); }
.pf-knife__inset {
    fill: none;
    stroke: rgba(255, 255, 255, .1);
    stroke-width: 1.5;
    vector-effect: non-scaling-stroke;
}
.pf-knife__badge,
.pf-knife__rivet { fill: var(--pf-accent); }
.pf-knife__label {
    font-family: "Raleway", sans-serif;
    font-weight: 800;
    font-size: 15px;
    letter-spacing: .22em;
    fill: var(--pf-accent);
    opacity: calc(.1 + .8 * var(--pf-open, 1));
}
.pf-knife__caption {
    font-family: "Raleway", sans-serif;
    font-weight: 800;
    font-size: 13px;
    letter-spacing: .55em;
    fill: rgba(255, 255, 255, .38);
}
/* su mobile il disegno è piccolo: etichette più grandi (unità del viewBox) */
@media (max-width: 991px) {
    .pf-knife { width: min(82%, 520px); }
    .pf-knife__label { font-size: 34px; letter-spacing: .12em; }
    .pf-knife__caption { font-size: 26px; letter-spacing: .3em; }
}

/* ---------- desktop: palco fissato, card in diagonale ---------- */
@media (min-width: 992px) {
    #section-portfolio.pf.is-flow .pf-stage {
        position: sticky;
        top: 0;
        height: 100vh;
        overflow: hidden;
    }
    #section-portfolio.pf.is-flow .pf-track {
        display: block;
        position: absolute;
        inset: 0;
        padding: 0;
    }
    #section-portfolio.pf.is-flow .pf-track .pf-card {
        position: absolute;
        left: 50%;
        top: 50%;
        width: var(--pf-card-w);
        margin: calc(var(--pf-card-w) * -0.55) 0 0 calc(var(--pf-card-w) * -0.5);
        transform-origin: 50% 50%;
    }
    /* il palco sale un po' sotto il titolo per ridurre il vuoto tra le due scritte */
    #section-portfolio.pf.is-flow .pf-scroller { margin-top: -14vh; }
    /* coltellino svizzero dietro le card, fermo al centro del palco */
    #section-portfolio.pf.is-flow .pf-knife {
        position: absolute;
        left: 50%;
        top: 47%;
        width: min(82vw, 1150px);
        margin: 0;
        transform: translate(-50%, -50%);
    }
    #section-portfolio.pf.is-flow .pf-progress {
        display: block;
        position: absolute;
        left: 50%;
        bottom: 34px;
        transform: translateX(-50%);
    }
    #section-portfolio.pf.is-flow .pf-progress__bar {
        display: block;
        width: 180px;
        height: 2px;
        background: rgba(255, 255, 255, .15);
        position: relative;
    }
    #section-portfolio.pf.is-flow .pf-progress__bar i {
        position: absolute;
        inset: 0 auto 0 0;
        width: 0;
        background: var(--pf-accent);
    }
}

/* Il template mette overflow:hidden su #wrapper, che blocca position:sticky.
   overflow:clip taglia allo stesso modo ma non crea un contenitore di scroll. */
@supports (overflow: clip) {
    #wrapper { overflow: clip; }
}

@media (prefers-reduced-motion: reduce) {
    .pf-card,
    .pf-card__media img { transition: none; }
}