/* Layout: hero a tutta larghezza con gradiente dell'immagine coordinata BMV (menta, acqua, pervinca), libro dritto al centro, matrici ridisegnate in HTML/SVG */
:root{
  --bg:#f8f8f9;--bg-2:#efeff1;--fg:#16161a;--muted:#5d5e64;--line:rgba(20,26,34,.10);
  --glass:rgba(255,255,255,.6);--glass-line:rgba(255,255,255,.85);
  --silver:#c4c5c7;--silver-l:#e6e7e9;--rose:#e2a1a5;--azure:#a51f25;--teal:#632a39;--burgundy:#632a39;--red:#a51f25;
  --ink-btn:#632a39;--ink-btn-fg:#ffffff;
  --grad:linear-gradient(100deg,var(--azure) 0%,var(--teal) 100%);
  --grad-soft:linear-gradient(165deg,#f1f1f3 0%,#dcdde0 50%,var(--silver) 100%);
  --f-display:"Geist",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-body:"Geist",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-mono:"Geist Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --maxw:1180px;color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--f-body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{font-family:var(--f-display);text-wrap:balance;margin:0;letter-spacing:-.035em;line-height:1.02}
p{margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
section{padding-block:clamp(72px,10vw,128px)}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.tag{display:inline-block;font-family:var(--f-mono);font-size:13px;color:var(--muted);margin-bottom:18px}

/* NAV */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;padding-block:14px}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--glass);border:1px solid var(--glass-line);backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);border-radius:999px;padding:8px 8px 8px 20px}
.brand{font-weight:700;letter-spacing:-.02em;text-decoration:none;display:flex;align-items:center;gap:10px;font-size:16px}
.brand-mark{width:22px;height:22px;border-radius:6px;background:var(--grad);display:grid;grid-template-columns:repeat(3,1fr);gap:2px;padding:3px}
.brand-mark i{background:rgba(255,255,255,.85);border-radius:1.5px}
.nav-links{display:flex;gap:26px;font-size:14.5px;color:var(--muted)}
.nav-links a{text-decoration:none;transition:color .2s}
.nav-links a:hover{color:var(--fg)}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--f-body);font-weight:500;font-size:15px;text-decoration:none;border-radius:999px;padding:12px 22px;transition:transform .2s ease,box-shadow .2s ease,background .2s;border:1px solid transparent;white-space:nowrap}
.btn:focus-visible,.nav-links a:focus-visible,.store:focus-visible{outline:2px solid var(--azure);outline-offset:3px}
.btn-dark{background:var(--ink-btn);color:var(--ink-btn-fg)}
.btn-dark:hover{transform:translateY(-1px);box-shadow:0 10px 30px -10px rgba(99,42,57,.6)}
.btn-ghost{background:var(--glass);border-color:var(--line);color:var(--fg);backdrop-filter:blur(10px)}
.btn-ghost:hover{transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.arrow{transition:transform .2s}
.btn:hover .arrow{transform:translateX(3px)}

/* HERO */
.hero{position:relative;isolation:isolate;overflow:hidden;margin-top:-76px;padding-top:calc(76px + clamp(28px,4vw,48px));padding-bottom:clamp(48px,6vw,80px);background:var(--grad-soft)}
.mesh{position:absolute;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.85}
.b1{width:640px;height:640px;background:#ffffff;opacity:.9;left:-160px;top:-120px;animation:f1 18s ease-in-out infinite}
.b2{width:620px;height:620px;background:var(--red);left:40%;top:240px;opacity:.38;animation:f2 22s ease-in-out infinite}
.b3{width:620px;height:620px;background:var(--rose);opacity:.7;right:-160px;top:-60px;animation:f1 20s ease-in-out infinite reverse}
.b4{width:460px;height:460px;background:#a9abb0;left:6%;top:520px;opacity:.55;animation:f2 16s ease-in-out infinite reverse}
.grain{position:absolute;inset:0;opacity:.16;mix-blend-mode:overlay;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>")}
@keyframes f1{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(60px,-40px) scale(1.08)}}
@keyframes f2{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-70px,30px) scale(.94)}}
.hero-meta{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 24px;font-size:13px;font-weight:500;padding-bottom:14px;border-bottom:1px solid rgba(20,26,34,.18)}
.hero-meta span:nth-child(2){text-align:center}
.hero h1{font-size:clamp(64px,15vw,210px);font-weight:800;letter-spacing:-.06em;line-height:.84;margin-top:clamp(24px,4vw,44px);text-transform:uppercase}
.hero h1 .l2{display:block;text-align:right}
.hero h1{color:var(--red)}
.hero h1 .outline{color:transparent;-webkit-text-stroke:2px var(--fg);text-stroke:2px var(--fg)}
.hero h1 sup{color:var(--red)!important;font-size:.14em;font-weight:600;vertical-align:top;position:relative;top:.55em;margin-left:.05em;letter-spacing:0;-webkit-text-stroke:0;color:var(--fg)}
.hero-row{display:grid;grid-template-columns:1fr auto 1fr;gap:clamp(24px,4vw,56px);align-items:end;margin-top:clamp(24px,4vw,40px)}
.hero-row .left{min-width:0;padding-bottom:clamp(16px,3vw,40px)}
.hero-row .right{min-width:0;padding-bottom:clamp(16px,3vw,40px);text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:16px}
.stars{color:var(--red);font-size:30px;letter-spacing:4px;line-height:1}
.hero .sub{font-size:clamp(19px,1.8vw,23px);font-weight:600;letter-spacing:-.02em;line-height:1.25;max-width:24ch}
.hero .lead{color:#2e3a46;margin-top:14px;max-width:38ch;font-size:16px}
.authors-line span{font-weight:400;color:var(--muted)}
.authors-line{font-weight:700;font-size:17px}
.cta-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
.meta-row{font-family:var(--f-mono);font-size:12.5px;color:#2e3a46}

/* LIBRO DRITTO, stile scheda prodotto */
.book-stage{display:flex;justify-content:center;align-items:flex-end}
.book{position:relative;width:min(340px,62vw);aspect-ratio:709/934;animation:bookIn 1.1s cubic-bezier(.2,.7,.2,1) both;margin-bottom:0}
@keyframes bookIn{from{transform:translateY(40px)}to{transform:translateY(0)}}
.cover{position:absolute;inset:0;border-radius:2px 5px 5px 2px;overflow:hidden;background:#bdbdbd;box-shadow:0 2px 3px rgba(0,0,0,.18),0 30px 60px -18px rgba(20,40,70,.45),0 60px 90px -40px rgba(99,42,57,.35)}
.cover img{width:100%;height:100%;object-fit:cover}
.cover::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.22) 0,rgba(255,255,255,.22) 1.6%,rgba(0,0,0,.06) 3.4%,transparent 6%)}

/* SECTION HEAD */
.sec-head{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,80px);align-items:end;margin-bottom:clamp(40px,6vw,72px)}
.sec-head h2{font-size:clamp(40px,5.6vw,72px);font-weight:700}
.sec-head p{color:var(--muted);max-width:54ch}

/* IL LIBRO */
.statement{font-size:clamp(26px,3.4vw,44px);font-weight:500;letter-spacing:-.03em;line-height:1.18;max-width:28ch;text-wrap:balance}
.statement .dim{color:var(--muted)}
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,56px);margin-top:clamp(48px,7vw,88px)}
.col h3{font-size:24px;font-weight:600;letter-spacing:-.025em}
.col .bar{width:36px;height:3px;border-radius:3px;background:var(--grad);margin:14px 0 16px}
.col p{color:var(--muted);font-size:16px}

/* COSA IMPARI */
.learn{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,90px);align-items:start}
.learn ul{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.learn li{display:grid;grid-template-columns:34px 1fr;gap:12px;padding:16px 0;border-bottom:1px solid var(--line);font-size:17px;font-weight:500}
.learn li span{font-family:var(--f-mono);font-size:13px;color:var(--muted);padding-top:3px}
.kit{display:grid;grid-template-columns:1fr 1fr;gap:28px 24px;margin-top:36px}
.kit div b{display:block;font-size:clamp(34px,4vw,48px);font-weight:700;letter-spacing:-.04em;line-height:1}
.kit div span{color:var(--muted);font-size:15px}
.kit div:first-child b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* METODO */
.metodo{background:var(--bg-2)}
.vs{display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,3vw,32px);margin-bottom:clamp(48px,7vw,80px)}
.vs div{padding-top:22px;border-top:2px solid var(--line)}
.vs div.hl{border-top-color:var(--azure)}
.vs h3{font-size:22px;font-weight:600}
.vs p{color:var(--muted);margin-top:10px;font-size:16px}
.shot{border-radius:22px;overflow:hidden;border:1px solid var(--line);background:#000;box-shadow:0 40px 90px -45px rgba(165,31,37,.35)}
.metodo-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,6vw,80px);align-items:center}
.metodo-copy{min-width:0}
.groups{display:grid;gap:22px;margin-top:28px}
.group b{display:block;font-weight:600;font-size:17px}
.group span{color:var(--muted);font-size:15.5px}
.scores{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}
.scores span{font-size:13.5px;border:1px solid var(--line);border-radius:999px;padding:6px 14px;background:var(--bg)}
.caption{font-size:13.5px;color:var(--muted);margin-top:12px}

/* MATRICI */
.mx-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(32px,6vw,80px);align-items:center}
.mx-list{display:grid;gap:0;border-top:1px solid var(--line);margin-top:28px}
.mx-list div{display:flex;justify-content:space-between;gap:16px;padding:15px 0;border-bottom:1px solid var(--line)}
.mx-list div b{font-weight:600}
.mx-list div span{color:var(--muted);font-size:15px;text-align:right}
.quad{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.quad span{font-size:13px;border-radius:999px;padding:5px 12px;background:var(--bg-2);border:1px solid var(--line)}

/* PERCORSO */
.path{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.step{padding:28px 24px 34px 0;border-bottom:1px solid var(--line);position:relative;min-width:0}
.step .k{font-family:var(--f-mono);font-size:13px;color:var(--muted)}
.step h3{font-size:clamp(20px,1.9vw,24px);font-weight:600;letter-spacing:-.025em;margin-top:22px;line-height:1.15}
.step p{color:var(--muted);font-size:15px;margin-top:10px}
.step .prog{position:absolute;left:0;top:-1px;height:2px;background:var(--grad);width:0;transition:width .9s cubic-bezier(.2,.7,.2,1)}
.step:hover .prog{width:100%}
.step.final h3{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* AUTORE */
.autore{background:var(--bg-2)}
.author-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(32px,6vw,80px);align-items:start}
.author-grid h2{font-size:clamp(44px,6vw,80px);font-weight:700}
.author-grid .role{color:var(--muted);margin-top:14px;font-size:18px}
.author-grid p.bio{margin-top:26px;font-size:18px;max-width:58ch}
.author-grid p.bio+p.bio{margin-top:14px;color:var(--muted);font-size:17px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}
.chips span{font-size:13px;border:1px solid var(--line);border-radius:999px;padding:5px 12px;background:var(--bg)}
.facts{border-top:1px solid var(--line)}
.facts div{padding:18px 0;border-bottom:1px solid var(--line)}
.facts b{display:block;font-size:30px;font-weight:700;letter-spacing:-.035em;line-height:1.1}
.facts span{color:var(--muted);font-size:15px}

/* ON AIR */
.onair{display:grid;grid-template-columns:1.45fr .55fr;gap:clamp(18px,3vw,28px);align-items:stretch}
.media{border-radius:22px;overflow:hidden;border:1px solid var(--line);background:var(--bg-2);display:flex;flex-direction:column}
.media img{width:100%;height:100%;object-fit:cover;flex:1;min-height:0}
.media.tall{background:linear-gradient(180deg,#bdbdbd,#f2f2f2)}
.media.tall img{object-fit:contain}
.media .cap{padding:16px 20px;font-size:15px;border-top:1px solid var(--line)}
.media .cap b{display:block;font-weight:600}
.media .cap span{color:var(--muted);font-size:14px}

/* ACQUISTA */
.buy-card{position:relative;border-radius:32px;padding:clamp(28px,6vw,72px);overflow:hidden;color:var(--fg);isolation:isolate}
.buy-card::before{content:"";position:absolute;inset:0;z-index:-2;background:radial-gradient(60% 80% at 0% 0%,#ffffff,transparent 65%),radial-gradient(60% 90% at 100% 100%,rgba(165,31,37,.35),transparent 65%),radial-gradient(50% 60% at 90% 0%,var(--rose),transparent 70%),linear-gradient(160deg,var(--silver-l),var(--silver))}
.buy-card .grain{z-index:-1}
.buy-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(28px,5vw,64px);align-items:start}
.buy-card h2{font-size:clamp(40px,6vw,80px);font-weight:700}
.buy-card .lead{margin-top:18px;max-width:44ch;opacity:.92}
.price{display:flex;align-items:baseline;gap:14px;margin-top:32px;flex-wrap:wrap}
.price strong{font-size:clamp(44px,5vw,64px);font-weight:700;letter-spacing:-.04em}
.price span{opacity:.88}
.stores{display:grid;gap:10px}
.store{display:flex;justify-content:space-between;align-items:center;gap:12px;text-decoration:none;background:rgba(255,255,255,.45);border:1px solid rgba(255,255,255,.8);backdrop-filter:blur(14px);border-radius:16px;padding:16px 20px;font-weight:500;transition:background .2s,transform .2s;color:var(--fg)}
.store:hover{background:rgba(255,255,255,.75);transform:translateX(3px)}
.store.primary{background:var(--burgundy);color:#fff;border-color:var(--burgundy)}
.store small{font-weight:400;opacity:.78;font-size:13px}
.specs{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px;padding-top:24px;border-top:1px solid rgba(20,26,34,.18);font-size:14px}
.specs div span{display:block;opacity:.7;font-size:12.5px;font-family:var(--f-mono)}
.specs div b{font-weight:500}

/* NEXT */
.next{display:grid;grid-template-columns:auto 1fr auto;gap:clamp(20px,4vw,48px);align-items:center;border:1px solid var(--line);border-radius:24px;padding:clamp(22px,3.5vw,36px)}
.mini-book{width:74px;aspect-ratio:3/4.3;border-radius:3px 7px 7px 3px;background:#f8bc3e;box-shadow:0 18px 30px -14px rgba(0,0,0,.4);display:flex;align-items:flex-end;padding:8px;color:#15130f;font-weight:800;font-size:10.5px;line-height:1;letter-spacing:-.02em}
.next h3{font-size:clamp(22px,2.4vw,30px);font-weight:700}
.next p{color:var(--muted);margin-top:6px;font-size:16px}

footer{padding-block:48px 56px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px}

.rv{transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.js .rv.pre{transform:translateY(18px)}

@media (max-width:960px){
  .nav-links{display:none}
  .hero-grid,.metodo-grid,.mx-grid,.buy-grid,.sec-head,.learn,.author-grid,.vs{grid-template-columns:1fr}
  
  .path{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  body{font-size:16px}
  .three,.path,.onair{grid-template-columns:1fr}
  .step{padding-right:0}
  .specs{grid-template-columns:1fr 1fr}
  .next{grid-template-columns:1fr}
  .blob{filter:blur(60px)}
  .b1{width:380px;height:380px}.b2{width:340px;height:340px}.b3{width:320px;height:320px}.b4{display:none}
}

/* MATRICI RIDISEGNATE */
.fw{background:#fff;border:1px solid var(--line);border-radius:22px;padding:clamp(16px,2.4vw,24px);box-shadow:0 40px 90px -50px rgba(165,31,37,.35)}
.fw-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.fw-top b{font-weight:700;letter-spacing:-.02em;font-size:18px}
.fw-top b sup{font-size:.55em;font-weight:500}
.fw-top span{font-family:var(--f-mono);font-size:11.5px;color:var(--muted)}
.fw-scores{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}
.fw-score{border-radius:12px;padding:10px 12px;background:var(--bg-2)}
.fw-score .t{font-size:11.5px;font-weight:600;color:var(--muted)}
.fw-score .v{font-size:20px;font-weight:700;letter-spacing:-.02em;margin-top:2px;font-variant-numeric:tabular-nums}
.fw-score .v small{font-size:12px;color:var(--muted);font-weight:500}
.fw-score .r{font-size:11px;color:var(--muted)}
.dots{display:flex;gap:4px;margin-top:6px}
.dots i{width:8px;height:8px;border-radius:50%;background:rgba(20,26,34,.14)}
.dots i.on{background:var(--azure)}
.dots.q i.on{background:#8e9096}
.fw-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.fw-col h4{margin:0 0 6px;font-size:11.5px;font-weight:600;color:var(--muted)}
.fw-cell{border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-bottom:8px;min-height:74px;display:flex;flex-direction:column;justify-content:space-between;gap:8px}
.fw-cell b{font-size:13.5px;font-weight:600;line-height:1.2}
.bar{height:5px;border-radius:5px;background:rgba(20,26,34,.08);overflow:hidden}
.bar i{display:block;height:100%;border-radius:5px;background:var(--grad)}
.fw-col.q .bar i{background:linear-gradient(90deg,#8e9096,#b4b6ba)}
.bo svg{width:100%;height:auto;display:block}
.cm{display:grid;grid-template-columns:auto 1fr 1fr;gap:8px;font-size:14px}
.cm .h{font-size:12px;font-weight:600;color:var(--muted);padding:6px 4px;align-self:end}
.cm .rl{font-size:12px;font-weight:600;color:var(--muted);writing-mode:vertical-rl;transform:rotate(180deg);text-align:center;padding:4px}
.cm .c{border-radius:14px;padding:14px;border:1px solid var(--line);background:#fff;min-width:0}
.cm .c b{display:block;font-weight:700;font-size:15px}
.cm .c span{color:var(--muted);font-size:13px}
.cm .c.v{background:linear-gradient(135deg,#f7f7f8,#ececee)}
.cm .c.f{background:linear-gradient(135deg,#f6ecec,#efdfe0)}
.cm .c + .c.sub{margin-top:8px}
.mx-block{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,64px);align-items:center;margin-top:clamp(56px,8vw,96px)}
.mx-block .txt{min-width:0}
.mx-block h3{font-size:clamp(26px,3vw,36px);font-weight:700}
.mx-block p{color:var(--muted);margin-top:12px;max-width:48ch}
.mx-block .k{font-family:var(--f-mono);font-size:13px;color:var(--azure)}
@media (max-width:960px){
  .hero-row{grid-template-columns:1fr}
  .hero-row .right{align-items:flex-start;text-align:left}
  .cta-row{justify-content:flex-start}
  .book-stage{order:-1}
  .book{margin-bottom:0}
  .hero h1 .l2{text-align:left}
  .mx-block{grid-template-columns:1fr}
}
@media (max-width:640px){.fw-scores,.fw-cols{grid-template-columns:1fr}.hero-meta span:nth-child(2){display:none}}

.tour{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(12px,2vw,20px)}
.ph{margin:0;min-width:0}
.ph img{width:100%;aspect-ratio:3/4;height:auto;object-fit:cover;border-radius:18px;background:var(--bg-2)}
.ph figcaption{padding-top:12px;font-size:15px}
.ph figcaption b{display:block;font-weight:600}
.ph figcaption span{color:var(--muted);font-size:14px}
@media (max-width:960px){.tour{grid-template-columns:repeat(2,1fr)}}

.consult{position:relative;border-radius:32px;overflow:hidden;isolation:isolate;padding:clamp(28px,6vw,72px);display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(24px,5vw,64px);align-items:center;border:1px solid var(--line);background:#fff}
.consult::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(60% 90% at 100% 0%,rgba(165,31,37,.14),transparent 70%),radial-gradient(50% 70% at 0% 100%,rgba(196,197,199,.45),transparent 70%)}
.consult h2{font-size:clamp(34px,4.6vw,60px);font-weight:700}
.consult p{color:var(--muted);margin-top:16px;max-width:52ch}
.consult ul{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:8px}
.consult li{padding-left:22px;position:relative;font-weight:500}
.consult li::before{content:"";position:absolute;left:0;top:.62em;width:10px;height:2px;background:var(--red)}
.consult .act{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.consult .act small{color:var(--muted);font-size:13.5px}
.btn-lg{padding:16px 28px;font-size:17px}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:20px 0}
.faq summary{cursor:pointer;font-weight:600;font-size:clamp(18px,1.8vw,21px);list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-weight:400;color:var(--red);font-size:24px;line-height:1}
.faq details[open] summary::after{content:"−"}
.faq details p{color:var(--muted);margin-top:12px;max-width:70ch}
@media (max-width:960px){.consult{grid-template-columns:1fr}}

.author2{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(28px,5vw,72px);align-items:center}
.author-photo{margin:0}
.author-photo img{width:100%;aspect-ratio:4/5;height:auto;object-fit:cover;border-radius:24px;box-shadow:0 40px 80px -40px rgba(22,22,26,.45)}
.author-txt{min-width:0}
.author-txt h2{font-size:clamp(44px,6vw,80px);font-weight:700}
.author-txt .role{color:var(--muted);margin-top:22px;font-size:18px}
.author-txt p.bio{margin-top:20px;font-size:17px;max-width:62ch;color:var(--fg)}
.author-txt p.bio+p.bio{margin-top:14px;color:var(--muted)}
@media (max-width:960px){.author2{grid-template-columns:1fr}.author-photo img{max-width:420px}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}.js .rv.pre{transform:none}}

.hero h1 .tagline{display:block;text-transform:none;font-size:clamp(20px,2.4vw,30px);font-weight:600;letter-spacing:-.02em;line-height:1.2;color:var(--fg);margin-top:22px;max-width:34ch}
.hero h1 .tagline::first-letter{text-transform:uppercase}
.usedby{padding-block:clamp(48px,6vw,80px);border-bottom:1px solid var(--line);background:#fff}
.usedby-t{text-align:center;font-size:clamp(17px,1.6vw,20px);font-weight:600;letter-spacing:-.01em;max-width:44ch;margin:0 auto}
.usedby-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,3vw,40px);margin-top:clamp(28px,4vw,44px);align-items:end}
.ub{display:flex;flex-direction:column;align-items:center;gap:16px;text-decoration:none;min-width:0;transition:transform .2s}
.ub:hover{transform:translateY(-2px)}
.ub img{height:clamp(54px,6vw,78px);width:auto;max-width:100%;object-fit:contain}
.ub span{text-align:center;font-size:13.5px;color:var(--muted)}
.ub span b{display:block;color:var(--fg);font-weight:600;font-size:15px}
@media (max-width:640px){.usedby-grid{grid-template-columns:1fr;gap:28px}}
.mini-cover{width:92px;height:auto;border-radius:2px 5px 5px 2px;box-shadow:0 20px 34px -14px rgba(0,0,0,.45)}
.art-fig{margin:36px 0 8px}
.art-fig img{width:100%;height:auto;border-radius:18px;display:block}
.art-fig figcaption{font-size:13.5px;color:var(--muted);margin-top:10px}
.art h3{font-size:19px;font-weight:700;margin-top:26px;letter-spacing:-.015em}
.toc{margin:32px 0 8px;padding:22px 24px;border:1px solid var(--line);border-radius:18px;background:#fff}
.toc b{font-size:15px}
.toc ol{margin-top:10px;gap:4px}
.toc li{font-size:15.5px}
.toc a{text-decoration:none;border-bottom:1px solid var(--line)}
.toc a:hover{color:var(--red)}
.art-box{margin:32px 0;padding:24px 26px;border-radius:18px;background:radial-gradient(60% 90% at 100% 0%,rgba(165,31,37,.12),transparent 70%),linear-gradient(160deg,var(--silver-l),#fff);border:1px solid var(--line)}
.art-box b{font-size:18px;display:block}
.art-box p{font-size:16px;color:var(--muted);margin-top:8px}
.art-box .btn{margin-top:14px}
.art-table{overflow-x:auto;margin-top:18px}
.art-table table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums;font-size:15.5px}
.art-table th,.art-table td{padding:10px 12px;text-align:right;border-bottom:1px solid var(--line)}
.art-table th:first-child,.art-table td:first-child{text-align:left}
.art-table thead th{font-weight:600;border-bottom:1.5px solid var(--fg)}
.art-note{font-size:13.5px!important;color:var(--muted)}
.art ul.check{list-style:none;padding-left:0}
.art ul.check li{padding-left:30px;position:relative}
.art ul.check li::before{content:"✓";position:absolute;left:0;top:0;color:var(--red);font-weight:700}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.guides{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,2vw,22px)}
.guide{display:flex;flex-direction:column;gap:10px;text-decoration:none;border:1px solid var(--line);border-radius:20px;padding:24px;background:#fff;transition:transform .2s,box-shadow .2s;min-width:0}
.guide:hover{transform:translateY(-2px);box-shadow:0 24px 50px -30px rgba(165,31,37,.4)}
.guide .k{font-family:var(--f-mono);font-size:12.5px;color:var(--red)}
.guide b{font-size:20px;font-weight:700;letter-spacing:-.02em;line-height:1.2}
.guide span{color:var(--muted);font-size:15px}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 20px}
.foot-links a{text-decoration:none}
.foot-links a:hover{color:var(--fg)}
/* ARTICOLI */
.art-hero{background:var(--grad-soft);padding-block:calc(76px + clamp(36px,5vw,64px)) clamp(40px,5vw,64px);margin-top:-76px}
.crumbs{font-size:13.5px;color:#3c3d42;display:flex;flex-wrap:wrap;gap:6px}
.crumbs a{text-decoration:none}
.art-hero h1{font-size:clamp(36px,5.2vw,66px);font-weight:800;letter-spacing:-.045em;line-height:1.02;margin-top:18px;max-width:20ch}
.art-meta{margin-top:18px;font-size:14px;color:#3c3d42}
.art{max-width:760px;margin:0 auto;padding-inline:clamp(16px,4vw,40px);padding-block:clamp(40px,6vw,72px)}
.art .lead{font-size:clamp(19px,1.9vw,22px);line-height:1.5;font-weight:500}
.art h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;margin-top:48px;letter-spacing:-.03em}
.art p,.art li{font-size:17.5px;line-height:1.7}
.art p{margin-top:14px}
.art ul,.art ol{padding-left:22px;margin:14px 0 0;display:grid;gap:8px}
.art li b{font-weight:600}
.art-cta{margin-top:56px;border-radius:24px;padding:clamp(24px,4vw,40px);background:radial-gradient(60% 90% at 100% 0%,rgba(165,31,37,.14),transparent 70%),linear-gradient(160deg,var(--silver-l),#fff);border:1px solid var(--line);display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:center}
.art-cta img{width:110px;height:auto;border-radius:3px;box-shadow:0 20px 40px -18px rgba(20,20,30,.45)}
.art-cta h3{font-size:22px;font-weight:700}
.art-cta p{font-size:16px;color:var(--muted);margin-top:8px}
.art-cta .cta-row{justify-content:flex-start;margin-top:16px}
.art .faq{margin-top:18px}
.related{margin-top:56px}
.related h3{font-size:14px;font-family:var(--f-mono);font-weight:400;color:var(--muted)}
.related ul{list-style:none;padding:0}
.related a{font-weight:600;text-decoration:none;border-bottom:1px solid var(--line)}
@media (max-width:960px){.guides{grid-template-columns:1fr}}
@media (max-width:640px){.art-cta{grid-template-columns:1fr}.art-cta img{width:90px}}