/* ZERO VOID — sezione in evidenza nella home (index.php) e pagina dedicata (zero-void.php).
   Il confronto a cursore delle radiografie e' gestito da js/zero-void.js. */
.zv { --zv-gold: var(--v2-gold, #FBC302); --zv-dark: #1A1817; --zv-cream: #F8F6F1; --zv-green: #1E8C50; }

/* ── confronto a cursore delle due radiografie ───────────────────── */
.zv-cfr { position: relative; border-radius: 0.875rem; overflow: hidden; background: #0d0d0d;
          aspect-ratio: 476 / 405; user-select: none; touch-action: pan-y; cursor: ew-resize;
          box-shadow: 0 2rem 4rem -2rem rgba(0,0,0,.6); }
.zv-cfr img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; pointer-events: none; }
.zv-cfr .zv-cfr-dopo { clip-path: inset(0 0 0 var(--zv-pos, 50%)); }
.zv-cfr-linea { position: absolute; top: 0; bottom: 0; left: var(--zv-pos, 50%); width: 2px; margin-left: -1px; background: var(--zv-gold); pointer-events: none; }
.zv-cfr-maniglia { position: absolute; top: 50%; left: var(--zv-pos, 50%); width: 2.75rem; height: 2.75rem; margin: -1.375rem 0 0 -1.375rem;
                   border-radius: 50%; background: var(--zv-gold); color: var(--zv-dark); display: flex; align-items: center; justify-content: center;
                   box-shadow: 0 0.5rem 1.5rem rgba(0,0,0,.45); pointer-events: none; font-weight: 700; font-size: 1rem; letter-spacing: -0.05em; }
.zv-cfr-et { position: absolute; top: 0.875rem; padding: 0.4rem 0.7rem; border-radius: 0.375rem; font-size: 0.75rem; font-weight: 600;
             background: rgba(13,13,13,.78); color: var(--zv-cream); pointer-events: none; backdrop-filter: blur(4px); }
.zv-cfr-et b { display: block; font-size: 1.25rem; line-height: 1.1; margin-top: 0.15rem; }
.zv-cfr-et-sx { left: 0.875rem; } .zv-cfr-et-sx b { color: #fff; }
.zv-cfr-et-dx { right: 0.875rem; text-align: right; } .zv-cfr-et-dx b { color: var(--zv-gold); }
.zv-cfr input[type=range] { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; margin: 0; }
.zv-cfr:focus-within .zv-cfr-maniglia { outline: 3px solid #fff; outline-offset: 3px; }
.zv-cfr-nota { margin-top: 0.75rem; font-size: 0.8125rem; color: rgba(248,246,241,.55); }

/* ── HOME: fascia in evidenza sotto i prodotti ───────────────────── */
.zv-home { background: var(--zv-dark); color: var(--zv-cream); position: relative; overflow: hidden; }
.zv-home::before { content: ''; position: absolute; inset: 0; background: url('../media-ph/zero-void/sfondo-radiografia.jpg') right center / cover no-repeat; opacity: .14; }
.zv-home-in { position: relative; max-width: var(--v2-container-max, 87.5rem); margin: 0 auto; padding: clamp(4.5rem, 9vw, 7.5rem) var(--v2-pad-x, 5rem);
              display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: clamp(2.5rem, 6vw, 6rem); align-items: center; }
.zv-home .v2-section-tag { color: var(--zv-gold); }
.zv-home h2 { font-size: clamp(2.5rem, 5vw, 4.25rem); line-height: 1.02; letter-spacing: -0.035em; font-weight: 700; margin: 1rem 0 1.5rem; color: #fff; }
.zv-home h2 span { color: var(--zv-gold); display: block; }
.zv-home p.zv-testo { font-size: 1.0625rem; line-height: 1.7; color: rgba(248,246,241,.72); max-width: 32rem; margin: 0 0 2rem; }
.zv-dato { display: flex; align-items: baseline; gap: 1rem; flex-wrap: wrap; margin: 0 0 2.25rem; padding: 1.25rem 0; border-top: 1px solid rgba(248,246,241,.12); border-bottom: 1px solid rgba(248,246,241,.12); }
.zv-dato-n { font-size: clamp(2rem, 3.4vw, 2.75rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1; }
.zv-dato-n.da { color: rgba(248,246,241,.45); text-decoration: line-through; text-decoration-thickness: 2px; text-decoration-color: rgba(248,246,241,.3); }
.zv-dato-n.a { color: var(--zv-gold); }
.zv-dato-freccia { color: rgba(248,246,241,.4); font-size: 1.5rem; }
.zv-dato-l { flex-basis: 100%; font-size: 0.875rem; color: rgba(248,246,241,.6); }
.zv-azioni { display: flex; gap: 0.75rem; flex-wrap: wrap; }
@media (max-width: 900px) { .zv-home-in { grid-template-columns: 1fr; } }

/* ── PAGINA ZERO VOID ─────────────────────────────────────────────── */
.zv-pg-hero { background: var(--zv-dark); color: #fff; position: relative; overflow: hidden; }
.zv-pg-hero::before { content: ''; position: absolute; inset: 0; background: url('../media-ph/zero-void/sfondo-radiografia.jpg') right center / cover no-repeat; opacity: .35; }
.zv-pg-hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, #1A1817 35%, rgba(26,24,23,.4)); }
.zv-pg-in { position: relative; z-index: 1; max-width: var(--v2-container-max, 87.5rem); margin: 0 auto; padding-left: var(--v2-pad-x, 5rem); padding-right: var(--v2-pad-x, 5rem); }
.zv-pg-hero .zv-pg-in { padding-top: clamp(9rem, 14vw, 12rem); padding-bottom: clamp(3rem, 6vw, 5rem); }
.zv-pg-hero .v2-section-tag { color: var(--zv-gold); }
.zv-pg-hero h1 { font-size: clamp(3.5rem, 9vw, 7.5rem); line-height: .95; letter-spacing: -0.045em; font-weight: 800; margin: 1rem 0 1.5rem; }
.zv-pg-hero h1 span { color: var(--zv-gold); }
.zv-pg-hero p { font-size: clamp(1.0625rem, 1.6vw, 1.3125rem); line-height: 1.6; color: rgba(248,246,241,.75); max-width: 36rem; margin: 0; }
.zv-numeri { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 0; margin-top: clamp(3rem, 6vw, 5rem); border-top: 1px solid rgba(248,246,241,.15); }
.zv-numeri > div { padding: 1.5rem 1.5rem 0 0; }
.zv-numeri > div + div { padding-left: 1.5rem; border-left: 1px solid rgba(248,246,241,.15); }
.zv-numeri strong { display: block; font-size: clamp(2.25rem, 4.5vw, 3.75rem); font-weight: 300; color: var(--zv-gold); letter-spacing: -0.03em; line-height: 1; margin-bottom: .6rem; }
.zv-numeri span { font-size: 0.875rem; line-height: 1.5; color: rgba(248,246,241,.65); display: block; max-width: 18rem; }
@media (max-width: 700px) { .zv-numeri { grid-template-columns: 1fr; } .zv-numeri > div + div { padding-left: 0; border-left: 0; border-top: 1px solid rgba(248,246,241,.15); margin-top: 1.25rem; } }

.zv-sez { padding: clamp(4.5rem, 9vw, 7rem) 0; }
.zv-sez-chiara { background: var(--zv-cream); color: var(--zv-dark); }
.zv-sez-scura { background: var(--zv-dark); color: var(--zv-cream); }
.zv-sez h2 { font-size: clamp(2.25rem, 4.5vw, 3.75rem); line-height: 1.04; letter-spacing: -0.035em; font-weight: 700; margin: 1rem 0 1.25rem; }
.zv-sez-chiara h2 span { color: var(--zv-green); } .zv-sez-scura h2 span { color: var(--zv-gold); }
.zv-sez-scura h2 { color: #fff; } .zv-sez-scura .v2-section-tag { color: var(--zv-gold); }
.zv-intro { font-size: 1.125rem; line-height: 1.7; max-width: 46rem; margin: 0 0 3rem; }
.zv-sez-chiara .zv-intro { color: rgba(26,24,23,.72); } .zv-sez-scura .zv-intro { color: rgba(248,246,241,.7); }

.zv-led { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1.25rem; }
.zv-led figure { margin: 0; background: #fff; border: 1px solid rgba(26,24,23,.1); border-radius: 0.875rem; padding: 1.5rem; }
.zv-led figure.ok { border: 2px solid var(--zv-green); }
.zv-led figcaption { font-size: 0.75rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: rgba(26,24,23,.55); margin-bottom: 1rem; }
.zv-led figure.ok figcaption { color: var(--zv-green); }
.zv-led img { width: 100%; height: auto; display: block; max-width: 26rem; margin: 0 auto; }
.zv-led p { margin: 1rem 0 0; font-size: 1.125rem; font-weight: 700; } .zv-led figure.ok p { color: var(--zv-green); }
@media (max-width: 760px) { .zv-led { grid-template-columns: 1fr; } }

.zv-ris { display: grid; grid-template-columns: minmax(0,1.2fr) minmax(0,1fr); gap: clamp(2rem,5vw,4.5rem); align-items: center; }
.zv-barre { display: grid; gap: 1.75rem; }
.zv-barra-n { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: .6rem; font-size: .9375rem; color: rgba(248,246,241,.7); }
.zv-barra-n b { font-size: clamp(2.5rem,5vw,3.75rem); font-weight: 700; letter-spacing: -.03em; color: #fff; line-height: 1; }
.zv-barra.zv-ok .zv-barra-n b { color: var(--zv-gold); }
.zv-barra-t { height: .75rem; border-radius: 99rem; background: rgba(248,246,241,.08); overflow: hidden; }
.zv-barra-t i { display: block; height: 100%; border-radius: inherit; background: rgba(248,246,241,.45); }
.zv-barra.zv-ok .zv-barra-t i { background: var(--zv-gold); }
.zv-fonte { font-size: .8125rem; color: rgba(248,246,241,.5); margin-top: .5rem; }
@media (max-width: 900px) { .zv-ris { grid-template-columns: 1fr; } }

.zv-grafici { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1.25rem; }
.zv-graf { background: rgba(248,246,241,.04); border: 1px solid rgba(248,246,241,.1); border-radius: 0.875rem; padding: 1.5rem; }
.zv-graf h3 { margin: 0 0 .5rem; font-size: 1.25rem; color: #fff; }
.zv-graf p { margin: 0 0 1.25rem; font-size: .9375rem; line-height: 1.6; color: rgba(248,246,241,.65); }
.zv-graf svg { width: 100%; height: auto; display: block; }
.zv-graf svg text { font-family: var(--v2-mono, monospace); font-size: 11px; fill: rgba(248,246,241,.55); }
@media (max-width: 860px) { .zv-grafici { grid-template-columns: 1fr; } }

.zv-vantaggi { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 0; border-top: 2px solid var(--zv-dark); }
.zv-vantaggi > div { padding: 1.75rem 1.75rem 0 0; }
.zv-vantaggi > div + div { padding-left: 1.75rem; border-left: 1px solid rgba(26,24,23,.12); }
.zv-vantaggi h3 { margin: 0 0 .6rem; font-size: 1.375rem; }
.zv-vantaggi p { margin: 0 0 1rem; font-size: 1rem; line-height: 1.6; color: rgba(26,24,23,.72); }
.zv-vantaggi small { display: block; font-size: .8125rem; line-height: 1.55; color: rgba(26,24,23,.55); }
@media (max-width: 860px) { .zv-vantaggi { grid-template-columns: 1fr; } .zv-vantaggi > div + div { padding-left: 0; border-left: 0; border-top: 1px solid rgba(26,24,23,.12); margin-top: 1.5rem; } }
.zv-ipc { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; margin-top: 3rem; padding-top: 2rem; border-top: 1px solid rgba(26,24,23,.12); }
.zv-ipc img { height: 3.25rem; width: auto; }
.zv-ipc p { margin: 0; font-size: 1rem; line-height: 1.6; color: rgba(26,24,23,.72); max-width: 30rem; }

/* pulsante giallo: testo scuro, leggibile (come nelle fasce finali) */
.zv .v2-btn-cta-large:not(:hover) { color: #1A1817; }

/* sezione che continua la precedente (stesso sfondo): niente spazio doppio sopra */
.zv-sez-segue { padding-top: 0; }
/* telefono: il grafico si rimpicciolisce con lo schermo, le scritte no */
@media (max-width: 600px) { .zv-graf svg text { font-size: 13px; } }
/* telefono: le due etichette delle radiografie restano ciascuna nella sua meta' (in tedesco e francese i testi sono lunghi e si sovrapponevano) */
@media (max-width: 600px) {
    .zv-cfr-et { top: 0.5rem; padding: 0.3rem 0.5rem; font-size: 0.625rem; max-width: calc(50% - 0.9rem); box-sizing: border-box; }
    .zv-cfr-et-sx { left: 0.5rem; } .zv-cfr-et-dx { right: 0.5rem; }
    .zv-cfr-et b { font-size: 0.875rem; }
}

/* ═══ ETICHETTE DEL CONFRONTO: cosa mostra ogni meta' e sfumatura col cursore ═══
   Sinistra "Con void" (punto rosso), destra "Zero Void" (punto oro).
   L'etichetta di una meta' sfuma mentre il cursore si avvicina ed e' sparita
   quando la raggiunge (--zv-sx / --zv-dx calcolati da js/zero-void.js): trascinando verso
   la parte Zero Void sparisce il dato con i void, e viceversa. */
.zv-cfr-et { display: flex; flex-direction: column; gap: 0.2rem; padding: 0.5rem 0.75rem 0.55rem; transition: opacity .12s linear, transform .12s linear; }
.zv-cfr-et-sx { opacity: var(--zv-sx, 1); transform: translateX(calc((1 - var(--zv-sx, 1)) * -0.5rem)); }
.zv-cfr-et-dx { opacity: var(--zv-dx, 1); transform: translateX(calc((1 - var(--zv-dx, 1)) * 0.5rem)); align-items: flex-end; }
.zv-cfr-tag { display: inline-flex; align-items: center; gap: 0.375rem; font-family: var(--v2-mono, 'JetBrains Mono', monospace); font-size: 0.625rem;
    font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; line-height: 1; }
.zv-cfr-tag i { width: 0.5rem; height: 0.5rem; border-radius: 50%; flex: 0 0 auto; }
.zv-cfr-et-sx .zv-cfr-tag { color: #FF8A7A; } .zv-cfr-et-sx .zv-cfr-tag i { background: #FF6B5A; box-shadow: 0 0 0 3px rgba(255,107,90,.22); }
.zv-cfr-et-dx .zv-cfr-tag { color: var(--zv-gold); } .zv-cfr-et-dx .zv-cfr-tag i { background: var(--zv-gold); box-shadow: 0 0 0 3px rgba(251,195,2,.22); }
.zv-cfr-et b { margin-top: 0.1rem; }
.zv-cfr-et small { font-size: 0.6875rem; font-weight: 500; color: rgba(248,246,241,.6); line-height: 1.2; }
@media (max-width: 600px) {
    /* piu' lontane dal centro: nella posizione iniziale devono vedersi piene
       anche con i testi lunghi (tedesco, spagnolo); se serve vanno a capo */
    .zv-cfr-et { gap: 0.15rem; padding: 0.35rem 0.5rem 0.4rem; max-width: calc(50% - 2.75rem); }
    .zv-cfr-tag { font-size: 0.5rem; letter-spacing: 0.14em; gap: 0.3rem; } .zv-cfr-tag i { width: 0.4rem; height: 0.4rem; }
    .zv-cfr-et small { font-size: 0.5625rem; }
}
@media (prefers-reduced-motion: reduce) { .zv-cfr-et { transition: none; transform: none !important; } }

/* Etichette al centro della propria meta' (dopo il primo trascinamento,
   vedi js/zero-void.js): testo centrato; primo spostamento morbido, poi
   seguono il cursore senza ritardo */
.zv-cfr-centrate .zv-cfr-et { align-items: center; text-align: center; transition: opacity .12s linear, left .3s cubic-bezier(.2,.7,.2,1); }
.zv-cfr-centrate.zv-cfr-segui .zv-cfr-et { transition: opacity .12s linear; }
.zv-cfr-centrate .zv-cfr-et-sx, .zv-cfr-centrate .zv-cfr-et-dx { transform: none; }
@media (prefers-reduced-motion: reduce) { .zv-cfr-centrate .zv-cfr-et { transition: none; } }