/* Le pagine dei casi studio: stesso sistema visivo della landing (palette BRD-002 + pietra STR-001 § 17,
   DM Serif Display + Manrope, ciano = l'ordine che porta Metis, oro = dove si perde). Pensate prima per il telefono. */
:root{
  --paper:#F5F1EA; --paper-2:#EDE7DD; --card:#FFFDF9; --line:#DCD3C5;
  --ink:#0E1B2E; --mute:#56657A; --navy:#0F2D52; --deep:#081A33; --deep-2:#0B2242;
  --cyan:#00A9CC; --cyan-ink:#006E81; /* un filo più scuro della landing (#007488): sul fondo pietra deve stare sopra 4,5:1 */
  --acqua:#2A9DAE; --acqua-ink:#146F80; /* il verde acqua dei testi evidenziati, come nella presentazione: #2A9DAE sul blu, più profondo sulla pietra */
  --cyan-soft:#7FD8EA; --steel:#B7C4D6; --gold:#C9A86A; --gold-ink:#7E5F28;
  --serif:"DM Serif Display", Georgia, serif;
  --sans:"Manrope", system-ui, sans-serif;
  --logo:"Montserrat", "Manrope", system-ui, sans-serif;
  --wrap:1120px; --text:720px; --gut:clamp(16px,4vw,44px);
  --ease:cubic-bezier(.22,1,.36,1);
  --shadow:0 1px 2px rgba(14,27,46,.05),0 12px 30px -14px rgba(14,27,46,.16),0 40px 80px -48px rgba(14,27,46,.28);
  color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
body{background:var(--paper);color:var(--ink);font:400 clamp(16px,1.1vw,18px)/1.65 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.08;letter-spacing:-.01em;text-wrap:balance}
p,li{text-wrap:pretty}
em{font-style:normal}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gut)}
.narrow{max-width:var(--text)}
.ic{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* testata */
.top{position:sticky;top:0;z-index:50;background:rgba(245,241,234,.88);backdrop-filter:blur(14px) saturate(160%);-webkit-backdrop-filter:blur(14px) saturate(160%);border-bottom:1px solid rgba(220,211,197,.6)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none}
/* logo: il file del Brand Book, mai sotto i 120 px di larghezza (BRD-002 § 1.3) */
.brand img.wm{height:15px;width:auto;max-width:none}
.top nav{display:flex;align-items:center;gap:10px}
.back{display:inline-flex;align-items:center;gap:6px;font:700 14.5px/1 var(--sans);color:var(--mute);text-decoration:none;padding:10px 6px}
.back:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.6em;padding:15px 24px;border-radius:12px;font:700 16px/1.1 var(--sans);text-decoration:none;background:var(--navy);color:#fff;white-space:nowrap;transition:transform .3s var(--ease),box-shadow .4s var(--ease),background .3s}
.btn:hover{box-shadow:0 0 0 3px rgba(0,169,204,.35),0 18px 34px -16px rgba(8,26,51,.6)}
.btn:active{transform:scale(.97)}
.btn.light{background:var(--cyan);color:var(--deep)}
.btn.sm{padding:10px 15px;font-size:14px;border-radius:10px}
.bar{position:fixed;left:0;top:0;height:3px;width:100%;background:var(--cyan);transform-origin:0 50%;transform:scaleX(0);z-index:60}

/* apertura */
.hero{background:radial-gradient(ellipse at 62% 30%,#13345F 0%,#0B2242 45%,var(--deep) 100%);color:#fff;padding:clamp(40px,6vw,84px) 0 clamp(48px,7vw,96px);position:relative;overflow:hidden}
.hero .wrap{position:relative;display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:clamp(28px,4vw,64px);align-items:center}
.kick{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-bottom:22px}
.sector{display:inline-block;padding:7px 13px;border-radius:999px;background:var(--cyan-soft);color:var(--deep);font:700 13.5px/1 var(--sans)}
.num{font:800 12px/1 var(--sans);letter-spacing:.2em;color:var(--steel);text-transform:uppercase}
.num b{color:var(--cyan-soft)}
.hero h1{font-size:clamp(38px,5vw,66px);color:#fff;margin-bottom:22px}
.hero h1 em{color:var(--acqua)}
.hero .lead{font-size:clamp(17px,1.35vw,20px);color:#E6ECF3;max-width:46ch}
.meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-top:30px}
.meta div{padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1)}
.meta dt{font:800 11.5px/1.3 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--cyan-soft);margin-bottom:4px}
.meta dd{font:600 14.5px/1.35 var(--sans);color:#fff}
.vstage{position:relative;width:100%;border-radius:clamp(14px,2vw,26px);overflow:hidden;background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.03)),radial-gradient(ellipse at 45% 40%,#1A4272 0%,#10305A 60%,#0C2648 100%);border:1px solid rgba(255,255,255,.14);box-shadow:0 60px 120px -50px rgba(0,0,0,.75),inset 0 1px 0 rgba(255,255,255,.12)}
.vs-in{position:absolute;left:0;top:0;transform-origin:0 0;color:#fff;background-image:linear-gradient(rgba(127,216,234,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(127,216,234,.05) 1px,transparent 1px);background-size:60px 60px}

/* sezioni */
section{padding:clamp(64px,8vw,112px) 0}
.stone{background:radial-gradient(ellipse at 50% 30%,#FBF8F2 0%,var(--paper) 45%,var(--paper-2) 100%)}
.deep{background:radial-gradient(ellipse at 60% 30%,#0F2548 0%,#0B1D3A 50%,#071429 100%);color:#fff}
.sec-k{display:inline-flex;align-items:center;gap:12px;font:800 12px/1 var(--sans);letter-spacing:.22em;text-transform:uppercase;color:var(--cyan-ink);margin-bottom:16px}
.sec-k::before{content:"";width:28px;height:2px;background:currentColor}
.deep .sec-k{color:var(--cyan)}
.gold .sec-k,.sec-k.gold{color:var(--gold-ink)}
h2{font-size:clamp(32px,4.2vw,54px);margin-bottom:22px;max-width:22ch}
h2 em{color:var(--acqua-ink)}
.deep h2 em{color:var(--acqua)}
h2 em.g{color:var(--acqua-ink)}
.prose p{margin-bottom:16px;color:#2A3A52}
.prose p:last-child{margin-bottom:0}
.prose b{color:var(--ink)}
.deep .prose p{color:#D9E2EE}
.deep .prose b{color:#fff}

/* il problema: i costi, in oro */
.pains{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:14px;margin-top:34px}
.pains li{position:relative;padding:20px 20px 20px 52px;background:var(--card);border-radius:16px;box-shadow:var(--shadow);color:#2A3A52;font-size:16px;line-height:1.5}
.pains li::before{content:"";position:absolute;left:20px;top:25px;width:12px;height:12px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 5px rgba(201,168,106,.2)}
.pains li b{display:block;color:var(--ink);font-size:17px;margin-bottom:3px}

/* la soluzione: i moduli */
.lede{font:400 clamp(22px,2.3vw,30px)/1.3 var(--serif);color:var(--ink);max-width:30ch;margin-bottom:26px}
.lede em{color:var(--acqua-ink)}
.mods{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:14px;margin-top:36px}
.mod{background:var(--card);border-radius:18px;padding:22px 22px 24px;box-shadow:var(--shadow);display:grid;align-content:start;gap:8px}
.mod h3{font-size:clamp(21px,1.8vw,25px);display:flex;align-items:center;gap:12px}
.mod h3 i{flex:none;width:30px;height:30px;border-radius:9px;background:rgba(0,169,204,.12);color:var(--cyan-ink);display:grid;place-items:center;font:800 13px/1 var(--sans);font-style:normal}
.mod p{color:var(--mute);font-size:15.5px;line-height:1.55}
.mod ul{list-style:none;display:grid;gap:6px;margin-top:4px}
.mod li{position:relative;padding-left:18px;color:#2A3A52;font-size:15px;line-height:1.5}
.mod li::before{content:"";position:absolute;left:2px;top:9px;width:6px;height:6px;border-radius:50%;background:var(--cyan)}

/* passo per passo */
.steps{list-style:none;position:relative;display:grid;gap:clamp(22px,3vw,30px);margin-top:40px;max-width:840px;counter-reset:s}
.steps::before{content:"";position:absolute;left:21px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--cyan),rgba(0,169,204,.15))}
.steps li{position:relative;display:grid;grid-template-columns:44px 1fr;gap:18px;counter-increment:s}
.steps li::before{content:counter(s);width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--deep-2);border:2px solid var(--cyan);color:#fff;font:800 16px/1 var(--sans);box-shadow:0 0 22px rgba(0,169,204,.35);position:relative;z-index:1}
.steps h3{font-size:clamp(21px,1.9vw,26px);color:#fff;margin:7px 0 6px}
.steps p{color:#D9E2EE;font-size:16px}
.steps p+p{margin-top:8px}
.steps .who{display:inline-block;margin-top:10px;font:700 12.5px/1 var(--sans);letter-spacing:.06em;color:var(--cyan-soft);background:rgba(0,169,204,.12);padding:6px 10px;border-radius:999px}

/* chi fa cosa: AI, regole, persone */
.split{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:36px}
.split>div{background:var(--card);border-radius:18px;padding:22px;box-shadow:var(--shadow)}
.split h3{font-size:22px;margin-bottom:12px;display:flex;align-items:center;gap:10px}
.split h3 .dot{width:12px;height:12px;border-radius:50%}
.split ul{list-style:none;display:grid;gap:10px}
.split li{position:relative;font-size:15.5px;line-height:1.5;color:#2A3A52;padding-left:16px}
.split li::before{content:"";position:absolute;left:1px;top:9px;width:6px;height:6px;border-radius:50%;background:var(--line)}
.split .ai .dot{background:var(--cyan)}
.split .rules .dot{background:var(--navy)}
.split .people .dot{background:var(--gold)}

/* dentro il sistema */
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:12px 28px;margin-top:30px}
.facts div{padding:16px 0;border-top:1px solid var(--line)}
.facts dt{font:800 11.5px/1.3 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--cyan-ink);margin-bottom:6px}
.facts dd{color:#2A3A52;font-size:15.5px;line-height:1.55}

/* a che punto è */

/* chiusura */
.cta{text-align:center}
.cta h2{margin:0 auto 14px;max-width:20ch}
.cta p{color:var(--steel);max-width:52ch;margin:0 auto 28px}
.cta .row{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
.cta .btn.ghost{background:rgba(255,255,255,.08);color:#fff}
.others{margin-top:clamp(48px,6vw,72px);padding-top:28px;border-top:1px solid rgba(255,255,255,.12)}
.others p{font:800 11.5px/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--steel);margin-bottom:14px}
.others ul{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:8px}
.others a{display:inline-block;padding:9px 14px;border-radius:999px;background:rgba(255,255,255,.07);color:#E6ECF3;text-decoration:none;font:600 14px/1.2 var(--sans)}
.others a:hover{background:rgba(0,169,204,.2)}
.others a[aria-current]{background:var(--cyan);color:var(--deep)}
footer{background:var(--deep);color:var(--steel);text-align:center;padding:40px var(--gut) 48px;font-size:13.5px;border-top:1px solid rgba(255,255,255,.08)}
footer p{max-width:70ch;margin:0 auto}
footer img.wm{display:block;height:21px;width:auto;max-width:none;margin:0 auto}
footer .pl{font:500 10.5px/1.4 var(--logo);letter-spacing:.34em;text-transform:uppercase;color:var(--gold);margin:26px auto 18px}
@media (max-width:420px){footer .pl{letter-spacing:.2em}}
@media (max-width:379px){.back{display:none}}

/* entrate: il contenuto è sempre visibile; il movimento lo porta in scena, non lo nasconde */
.js .rise{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .rise.in{opacity:1;transform:none}

@media (max-width:980px){
  .hero .wrap{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
}
@media (max-width:560px){
  .top .wrap{height:60px}
  .brand img.wm{height:14px}
  .back span{display:none}
  .hero{padding-top:28px}
  .meta{grid-template-columns:1fr 1fr}
  .meta div:last-child:nth-child(odd){grid-column:1/-1}
  .vstage{margin-inline:calc(8px - var(--gut));width:calc(100% + 2 * (var(--gut) - 8px))}
  .cta .row{flex-direction:column;align-items:stretch}
  .pains li{padding:18px 16px 18px 46px}
  .pains li::before{left:17px;top:23px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}html{scroll-behavior:auto}}