/* ══════════════════════════════════════════════════════════════════════════
   SEZIONE LEZIONI VIDEO — usata identica da index.html (pubblica) e
   portale.html (area clienti). Usa le variabili colore gia' definite nelle
   due pagine (--bg2, --gold, --border...), quindi non porta una palette sua.
   ══════════════════════════════════════════════════════════════════════════ */

/* Il pannello sta chiuso finche' non premi "Lezioni video": si apre sopra tutto,
   da qualsiasi punto del sito, senza portarti via dalla pagina dove sei. */
#lezioni{position:fixed;inset:0;z-index:180;display:none;overflow-y:auto;
  background:var(--bg,#080c1a)}
#lezioni.on{display:block}
body.lz-open{overflow:hidden}
.lz-close{position:sticky;top:0;z-index:2;display:flex;justify-content:flex-end;
  padding:16px 40px 0;max-width:1240px;margin:0 auto}
.lz-close button{background:rgba(255,255,255,.04);border:1px solid var(--border);
  color:var(--muted);cursor:pointer;border-radius:10px;padding:9px 16px;
  font-family:inherit;font-size:13px;font-weight:700;display:inline-flex;
  align-items:center;gap:8px;transition:all .15s}
.lz-close button:hover{color:var(--text);border-color:var(--border2)}
.lz-close button:focus-visible{outline:2px solid var(--gold);outline-offset:2px}

.lz-sec{max-width:1240px;margin:0 auto;padding:26px 40px 64px}
.lz-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  flex-wrap:wrap;padding-bottom:20px;border-bottom:1px solid var(--border)}
.lz-head h2{font-size:clamp(24px,3vw,32px);font-weight:800;letter-spacing:-.02em}
.lz-head h2 em{font-style:normal;color:var(--gold)}
.lz-head p{color:var(--muted);font-size:14px;margin-top:6px;max-width:62ch}

/* ── Linguette prodotto ── */
.lz-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:26px 0}
.lz-tab{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--border);
  background:rgba(255,255,255,.04);color:var(--muted);border-radius:999px;
  padding:10px 18px;font-family:inherit;font-size:13.5px;font-weight:600;
  cursor:pointer;transition:all .15s}
.lz-tab:hover{color:var(--text);border-color:var(--border2)}
.lz-tab:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.lz-tab[aria-selected="true"]{background:linear-gradient(135deg,rgba(212,175,55,.16),rgba(212,175,55,.06));
  border-color:rgba(212,175,55,.5);color:var(--gold-l,#E8C84A)}
.lz-tab .lz-n{font-size:11px;font-weight:700;background:rgba(255,255,255,.07);
  border-radius:999px;padding:1px 8px;font-variant-numeric:tabular-nums}
.lz-tab[aria-selected="true"] .lz-n{background:rgba(212,175,55,.2)}
/* Prodotti senza video: si vedono, cosi' si sa che il corso arrivera', ma non si aprono. */
.lz-tab[disabled]{opacity:.42;cursor:not-allowed}
.lz-tab[disabled]:hover{color:var(--muted);border-color:var(--border)}
.lz-n.lz-soon{background:rgba(245,183,0,.14);color:var(--yellow,#F5B700);
  font-variant-numeric:normal;letter-spacing:.02em}

/* ── Griglia ── */
.lz-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:20px}
.lz-card{display:flex;flex-direction:column;text-align:left;padding:0;
  background:rgba(255,255,255,.04);border:1px solid var(--border);
  border-radius:var(--radius,14px);overflow:hidden;cursor:pointer;
  font-family:inherit;color:inherit;transition:transform .16s,border-color .16s,box-shadow .16s}
.lz-card:hover{transform:translateY(-3px);border-color:rgba(212,175,55,.42);
  box-shadow:0 14px 34px rgba(0,0,0,.45)}
.lz-card:focus-visible{outline:2px solid var(--gold);outline-offset:2px}

.lz-cov{position:relative;aspect-ratio:16/9;background:#0d1124;
  border-bottom:1px solid var(--border);overflow:hidden}
.lz-cov img{width:100%;height:100%;object-fit:cover;display:block}
.lz-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(180deg,rgba(8,12,26,0),rgba(8,12,26,.55))}
.lz-play i{width:52px;height:52px;border-radius:50%;background:rgba(8,12,26,.72);
  border:1.5px solid rgba(232,200,74,.6);display:flex;align-items:center;
  justify-content:center;transition:transform .16s,background .16s}
.lz-card:hover .lz-play i{transform:scale(1.09);background:rgba(212,175,55,.92)}
.lz-play svg{width:17px;height:17px;margin-left:3px;color:var(--gold-l,#E8C84A)}
.lz-card:hover .lz-play svg{color:#0a0e1e}

.lz-body{padding:14px 16px 17px;display:flex;flex-direction:column;gap:5px;flex:1}
.lz-eyebrow{font-size:10.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--gold-d,#A08020)}
.lz-card h3{font-size:15px;font-weight:600;line-height:1.35}

.lz-empty{border:1px dashed var(--border2);border-radius:var(--radius-lg,20px);
  padding:54px 30px;text-align:center;color:var(--muted)}
.lz-empty strong{display:block;color:var(--text);font-size:16px;font-weight:600;margin-bottom:7px}
.lz-empty p{font-size:13.5px;max-width:46ch;margin:0 auto}

/* ── Lettore in sovrimpressione ── */
.lz-ov{position:fixed;inset:0;z-index:200;display:none;align-items:center;
  justify-content:center;padding:22px;background:rgba(4,6,14,.88)}
.lz-ov.on{display:flex}
.lz-player{width:min(940px,100%);background:var(--bg2);border:1px solid var(--border2);
  border-radius:var(--radius-lg,20px);overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.7)}
.lz-phead{display:flex;align-items:center;gap:14px;padding:15px 18px;
  border-bottom:1px solid var(--border)}
.lz-phead div{flex:1;min-width:0}
.lz-phead h3{font-size:16px;font-weight:600;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap}
.lz-px{background:none;border:1px solid var(--border);color:var(--muted);cursor:pointer;
  width:32px;height:32px;border-radius:8px;font-size:15px;font-family:inherit;
  flex-shrink:0;display:flex;align-items:center;justify-content:center;transition:all .15s}
.lz-px:hover{color:var(--text);border-color:var(--border2)}
.lz-px:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.lz-frame{aspect-ratio:16/9;background:#000}
.lz-frame iframe{width:100%;height:100%;border:0;display:block}

@media (max-width:760px){ .lz-sec{padding:20px 20px 48px} .lz-close{padding:14px 20px 0} }
@media (prefers-reduced-motion:reduce){
  .lz-card,.lz-play i{transition:none}
  .lz-card:hover{transform:none}
}