/* ============ LANDING LIBRO ============ */
.stars{color:var(--v);letter-spacing:3px}

/* hero */
.l-hero{padding:150px 0 90px;position:relative;overflow:hidden}
.l-glow{position:absolute;right:-10%;top:10%;width:760px;height:760px;border-radius:50%;background:radial-gradient(circle,rgba(255,90,31,.28),transparent 62%);pointer-events:none}
.l-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(30px,5vw,80px);align-items:center;position:relative}
.l-rating{display:inline-flex;align-items:center;gap:10px;padding:8px 14px;border-radius:999px;background:var(--paper);color:var(--ink)}
.l-pre{margin-top:28px;font-family:var(--f-d);font-weight:500;font-size:clamp(19px,1.8vw,24px);letter-spacing:-.03em;color:var(--mute);max-width:560px;line-height:1.25}
.l-title{font-family:var(--f-d);font-weight:700;font-size:clamp(48px,7.4vw,116px);line-height:.92;letter-spacing:-.06em;margin:16px 0 26px;white-space:nowrap}
.l-title .acc{color:var(--v);font-size:.8em;font-weight:600}
.l-hero .lead{max-width:540px}
.l-buy{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:34px}
.l-price{display:flex;align-items:center;gap:14px}
.l-price .now{font-family:var(--f-s);font-weight:600;font-size:clamp(40px,4vw,56px);letter-spacing:-.06em;line-height:1}
.l-price .info{font-size:14px;color:var(--mute);line-height:1.35}
.l-price .info b{color:var(--ink);font-weight:600}
.l-trust{display:flex;gap:8px 20px;flex-wrap:wrap;margin-top:22px;color:var(--mute)}
.l-trust span::before{content:"✓";color:var(--v);font-weight:700;margin-right:6px}
.l-hero-vis{perspective:1400px;display:grid;place-items:center}
.l-book{position:relative;width:min(100%,430px);transform-style:preserve-3d;will-change:transform}
.l-book img{width:100%;height:auto;filter:drop-shadow(0 50px 60px rgba(25,20,15,.45)) drop-shadow(0 10px 18px rgba(25,20,15,.25))}
.l-chip{position:absolute;padding:10px 16px;border-radius:999px;font-size:14px;font-weight:500;transform:translateZ(80px);white-space:nowrap}
.l-chip b{font-family:var(--f-s);color:var(--v2);margin-right:4px}
.l-chip.c1{top:10%;left:-14%}.l-chip.c2{top:44%;right:-12%}.l-chip.c3{bottom:12%;left:-8%}
@media(max-width:900px){.l-hero-grid{grid-template-columns:1fr}.l-hero-vis{order:-1}.l-book{width:min(70%,320px)}.l-chip.c1{left:-20%}.l-chip.c2{right:-22%}.l-hero{padding-top:120px}}

/* split generic */
.l-split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,6vw,90px);align-items:center}
.l-split .lead{margin-top:22px}
.l-checks{list-style:none;display:grid;gap:12px;margin-top:28px}
.l-checks li{display:flex;gap:12px;align-items:flex-start;font-size:17px}
.l-checks li span{flex:none;width:26px;height:26px;border-radius:50%;background:var(--v);color:var(--ink);display:grid;place-items:center;font-size:13px;font-weight:700;margin-top:1px}
.l-open img{width:100%;height:auto;filter:drop-shadow(0 40px 50px rgba(25,20,15,.25))}
@media(max-width:900px){.l-split{grid-template-columns:1fr}}

/* PCC */
.l-pcc{border-radius:40px;margin:0 16px}
.pcc{position:relative;margin-top:60px}
.pcc svg{width:100%;height:220px;display:block;overflow:visible}
.pcc svg path{fill:none;stroke:var(--v);stroke-width:5;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 0 12px rgba(255,90,31,.6));vector-effect:non-scaling-stroke}
.pcc-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}
.pcc-step{padding:28px;border-radius:24px;background:rgba(255,255,255,.05);border:1px solid var(--line-d)}
.pcc-step .n{font-family:var(--f-s);color:var(--v);font-size:14px;font-weight:600}
.pcc-step h3{font-family:var(--f-d);font-size:28px;letter-spacing:-.04em;font-weight:600;margin:12px 0 8px}
.pcc-step p{color:var(--mute-d);font-size:15.5px}
@media(max-width:900px){.pcc-steps{grid-template-columns:1fr}.pcc svg{height:140px}.l-pcc{border-radius:26px;margin:0 8px}}

/* include */
.l-inc{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:60px}
.inc{border-radius:26px;background:var(--paper);padding:30px;min-height:190px;display:flex;flex-direction:column;justify-content:space-between;transition:background .5s var(--ease),color .5s,transform .5s var(--ease)}
.inc:hover{background:var(--anth);color:#fff;transform:translateY(-6px)}
.inc .n{font-family:var(--f-s);font-weight:600;font-size:40px;letter-spacing:-.06em;color:var(--v);line-height:1}
.inc h3{font-family:var(--f-d);font-weight:600;font-size:clamp(21px,1.9vw,26px);letter-spacing:-.035em;line-height:1.12}
@media(max-width:900px){.l-inc{grid-template-columns:1fr}}

/* video */
.l-video-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap}
.l-video-head .lead{max-width:420px}
.l-video{display:block;cursor:pointer;width:100%;margin-top:44px;border-radius:32px;overflow:hidden;position:relative;aspect-ratio:16/9;background:var(--anth);padding:0}
.l-video img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease),filter .6s}
.l-video:hover img{transform:scale(1.04);filter:brightness(.85)}
.l-video .play{position:absolute;left:50%;top:50%;width:110px;height:110px;margin:-55px 0 0 -55px;border-radius:50%;background:var(--v);color:var(--ink);display:grid;place-items:center;box-shadow:0 0 0 14px rgba(255,90,31,.25);transition:transform .5s var(--ease)}
.l-video:hover .play{transform:scale(1.1)}
.l-video .play svg{width:38px;height:38px;margin-left:5px}
.l-video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* capitoli */
.l-chap{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(30px,6vw,100px)}
.l-chap-side{position:sticky;top:120px;align-self:start}
.l-chap-count{font-family:var(--f-s);font-weight:600;font-size:clamp(80px,10vw,150px);letter-spacing:-.07em;line-height:1;margin-top:40px;color:var(--v)}
.l-chap-count small{font-size:.3em;color:var(--mute);letter-spacing:-.02em;margin-left:8px}
.chapters{list-style:none;counter-reset:c;border-top:1px solid var(--line)}
.chapters li{counter-increment:c;display:grid;grid-template-columns:60px 1fr;column-gap:10px;padding:28px 0;border-bottom:1px solid var(--line);opacity:.35;transition:opacity .5s var(--ease)}
.chapters li.on{opacity:1}
.chapters li::before{content:counter(c,decimal-leading-zero);grid-row:span 2;font-family:var(--f-s);font-weight:600;color:var(--v);font-size:15px;padding-top:6px}
.chapters h3{font-family:var(--f-d);font-weight:600;font-size:clamp(22px,2.2vw,30px);letter-spacing:-.035em;line-height:1.1}
.chapters p{color:var(--mute);margin-top:8px;font-size:16px}
@media(max-width:900px){.l-chap{grid-template-columns:1fr}.l-chap-side{position:relative;top:0}.l-chap-count{display:none}.chapters li{opacity:1}}

/* bonus */
.l-bonus{border-radius:40px;margin:0 16px;overflow:hidden}
.l-bonus .wrap{position:relative;z-index:1}
.l-value{display:flex;align-items:baseline;gap:18px;margin:30px 0 10px}
.l-value .old{font-family:var(--f-s);font-size:clamp(34px,3.6vw,50px);letter-spacing:-.05em;color:var(--mute-d);position:relative}
.l-value .old::after{content:"";position:absolute;left:-4%;right:-4%;top:52%;height:4px;border-radius:4px;background:var(--v);transform:scaleX(0);transform-origin:left;transition:transform .9s var(--ease)}
.l-value .old.struck::after{transform:scaleX(1)}
.l-value .free{font-family:var(--f-s);font-weight:600;font-size:clamp(40px,4.4vw,64px);letter-spacing:-.06em;color:var(--v)}
.l-bonus-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:16px 24px;margin-top:24px}
.l-bonus-list li{font-size:14.5px;color:var(--mute-d);padding-left:16px;border-left:2px solid var(--v)}
.l-bonus-list b{display:block;color:#fff;font-weight:600;font-size:15.5px;margin-bottom:3px}
.l-bonus-img{border-radius:28px;overflow:hidden}
.l-bonus-img img{width:100%;height:auto}
@media(max-width:900px){.l-bonus{border-radius:26px;margin:0 8px}.l-bonus-list{grid-template-columns:1fr}}

/* stats + lettori */
.l-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:20px}
.st{border-radius:24px;background:var(--paper);padding:28px}
.st strong{display:block;font-family:var(--f-s);font-weight:600;font-size:clamp(34px,3.6vw,52px);letter-spacing:-.06em;line-height:1}
.st>span{display:block;color:var(--mute);font-size:14.5px;margin-top:10px}
.l-readers{display:grid;grid-template-columns:repeat(3,1fr) 1.1fr;gap:16px;margin-top:16px}
.l-readers figure{border-radius:24px;overflow:hidden;aspect-ratio:3/4}
.l-readers img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.l-readers figure:hover img{transform:scale(1.05)}
.l-readers-txt{border-radius:24px;background:var(--anth);color:#fff;padding:28px;display:flex;flex-direction:column;justify-content:flex-end;gap:8px}
.l-readers-txt strong{font-family:var(--f-d);font-size:28px;letter-spacing:-.04em;font-weight:600}
.l-readers-txt p{color:var(--mute-d);font-size:15px}
@media(max-width:900px){.l-stats{grid-template-columns:1fr 1fr}.l-readers{grid-template-columns:1fr 1fr}}

/* autore */
.l-author{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(30px,6vw,90px);align-items:center}
.l-author figure{border-radius:32px;overflow:hidden;aspect-ratio:1}
.l-author figure img{width:100%;height:100%;object-fit:cover;filter:grayscale(1);transition:filter .8s}
.l-author figure:hover img{filter:none}
.l-role{color:var(--v2);margin:14px 0 22px}
.l-author p+p{margin-top:14px}
.l-author>div>p:not(.l-role){color:#3a3b41;font-size:17.5px}
.l-author blockquote{margin-top:26px;padding:24px 26px;border-radius:22px;background:var(--paper);font-family:var(--f-d);font-weight:500;font-size:clamp(20px,2vw,25px);letter-spacing:-.03em;line-height:1.25;border-left:4px solid var(--v)}
@media(max-width:900px){.l-author{grid-template-columns:1fr}}

/* offerta */
.l-offer{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(30px,5vw,80px);align-items:center;background:var(--anth);color:#fff;border-radius:40px;padding:clamp(34px,6vw,80px);position:relative;overflow:hidden}
.l-offer::before{content:"";position:absolute;left:-10%;top:-20%;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(255,90,31,.35),transparent 62%)}
.l-offer-vis{position:relative;display:grid;place-items:center}
.l-offer-vis img{width:min(100%,360px);height:auto;filter:drop-shadow(0 40px 50px rgba(0,0,0,.6));transform:rotate(-5deg)}
.l-offer-txt{position:relative}
.l-offer .kicker{color:var(--mute-d)}.l-offer .kicker b{color:var(--v3)}.l-offer .kicker::after{background:var(--line-d)}
.l-offer .l-checks li{color:#e4e4ea}
.l-offer-price{display:flex;flex-direction:column;gap:4px;margin:32px 0 24px}
.l-offer-price .was{color:var(--mute-d);text-decoration:line-through;text-decoration-color:var(--v);text-decoration-thickness:2px}
.l-offer-price .now{font-size:20px}
.l-offer-price .now b{font-family:var(--f-s);font-weight:600;font-size:clamp(46px,5vw,70px);letter-spacing:-.06em;color:var(--v);margin-left:8px}
.l-offer .btn{height:64px;padding:0 30px;font-size:17px}
.l-offer .btn::before{background:#fff}
.l-offer .btn:hover{color:var(--ink)}
.l-secure{margin-top:24px;max-width:340px;width:100%;opacity:.8;filter:invert(1) grayscale(1) brightness(1.4);mix-blend-mode:screen}
@media(max-width:900px){.l-offer{grid-template-columns:1fr;border-radius:26px}.l-offer-vis img{width:60%}}

/* barra acquisto */
.buybar{position:fixed;left:50%;bottom:16px;z-index:95;display:flex;align-items:center;gap:14px;padding:8px 8px 8px 12px;border-radius:999px;transform:translate(-50%,140%);transition:transform .6s var(--ease);max-width:calc(100% - 24px)}
.buybar.on{transform:translate(-50%,0)}
.buybar img{width:30px;height:auto;filter:drop-shadow(0 4px 6px rgba(0,0,0,.3))}
.buybar b{display:block;font-family:var(--f-d);font-size:15px;letter-spacing:-.02em;white-space:nowrap}
.buybar span{font-size:12.5px;color:var(--mute);white-space:nowrap}
.buybar .btn{height:44px;padding:0 22px;font-size:14px}
.buybar>div{min-width:0;overflow:hidden}
.buybar b,.buybar span{overflow:hidden;text-overflow:ellipsis}
.buybar .btn{flex:none}
@media(max-width:420px){.buybar{left:12px;right:12px;transform:translateY(140%);max-width:none}.buybar.on{transform:none}}