/* Caso di studio — stili isolati sotto .caso-studio */
.caso-studio{
  --inchiostro:#12212E;
  --guaina:#2B3944;
  --blu:#1F4E79;
  --blu-chiaro:#2E75B6;
  --segnale:#C0392B;
  --carta:#F7F5F1;
  --carta-2:#EDEAE3;
  --linea:#D6D1C7;
  --grigio:#5C6670;

  --display:"Archivo",system-ui,sans-serif;
  --testo:"Source Serif 4",Georgia,serif;
  --dati:"JetBrains Mono",ui-monospace,monospace;

  --mis:min(1160px,92vw);
}
.caso-studio *{box-sizing:border-box}
.caso-studio{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
.caso-studio{scroll-behavior:auto}
.caso-studio *, .caso-studio *::before, .caso-studio *::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
}
.caso-studio{
  margin:0;
  background:var(--carta);
  color:var(--inchiostro);
  font-family:var(--testo);
  font-size:1.0625rem;
  line-height:1.72;
  -webkit-font-smoothing:antialiased;
}
.caso-studio img, .caso-studio svg{max-width:100%;height:auto;display:block}
.caso-studio a{color:var(--blu)}
.caso-studio /* ---------- utility ---------- */
.mis{width:var(--mis);margin-inline:auto}
.caso-studio .stretta{max-width:68ch}
.caso-studio .eyebrow{
  font-family:var(--dati);
  font-size:.72rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--grigio);
  margin:0 0 .9rem;
}
.caso-studio .skip{
  position:absolute;left:-9999px;top:0;background:var(--inchiostro);color:#fff;
  padding:.7rem 1rem;z-index:99;
}
.caso-studio .skip:focus{left:0}
.caso-studio :focus-visible{outline:3px solid var(--blu-chiaro);outline-offset:3px}
.caso-studio /* ---------- header ---------- */
.top{
  border-bottom:1px solid var(--linea);
  background:var(--carta);
  position:sticky;top:0;z-index:20;
}
.caso-studio .top .mis{
  display:flex;align-items:baseline;justify-content:space-between;
  gap:1rem;padding:1.05rem 0;
}
.caso-studio .marchio{
  font-family:var(--display);font-weight:700;letter-spacing:.02em;
  font-size:1.02rem;text-decoration:none;color:var(--inchiostro);
}
.caso-studio .marchio span{color:var(--blu);font-weight:600}
.caso-studio .claim{
  font-family:var(--dati);font-size:.7rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--grigio);
}
@media(max-width:640px){
.caso-studio .claim{display:none}}
.caso-studio /* ---------- hero: la sezione è la tesi ---------- */
.hero{padding:clamp(2.6rem,6vw,4.6rem) 0 0}
.caso-studio .hero h1{
  font-family:var(--display);
  font-weight:700;
  font-size:clamp(1.95rem,4.6vw,3.15rem);
  line-height:1.08;
  letter-spacing:-.02em;
  margin:.2rem 0 1.1rem;
  max-width:20ch;
}
.caso-studio .hero h1 em{
  font-style:normal;
  color:var(--segnale);
}
.caso-studio .somm{
  font-size:clamp(1.06rem,1.9vw,1.24rem);
  color:var(--guaina);
  max-width:62ch;margin:0 0 2rem;
}
.caso-studio /* scheda dati intervento */
.scheda{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  border-top:2px solid var(--inchiostro);
  border-bottom:1px solid var(--linea);
  margin:0 0 3.2rem;
}
.caso-studio .scheda div{
  padding:1rem 1.1rem 1.15rem 0;
  border-right:1px solid var(--linea);
}
.caso-studio .scheda div:last-child{border-right:0}
.caso-studio .scheda dt{
  font-family:var(--dati);font-size:.68rem;letter-spacing:.13em;
  text-transform:uppercase;color:var(--grigio);margin:0 0 .35rem;
}
.caso-studio .scheda dd{
  margin:0;font-family:var(--display);font-weight:600;font-size:1.02rem;line-height:1.3;
}
.caso-studio /* ---------- sezione stratigrafia: firma della pagina ---------- */
.sezione{padding:clamp(2.4rem,5vw,3.8rem) 0}
.caso-studio .sezione--scuro{
  background:var(--guaina);
  color:var(--carta);
}
.caso-studio .sezione--scuro .eyebrow{color:#9FB0BE}
.caso-studio .sezione--scuro h2{color:#fff}
.caso-studio .sezione--scuro a{color:#9FD0F5}
.caso-studio h2{
  font-family:var(--display);font-weight:700;
  font-size:clamp(1.35rem,2.7vw,1.95rem);
  line-height:1.18;letter-spacing:-.015em;
  margin:0 0 1.1rem;max-width:24ch;
}
.caso-studio h3{
  font-family:var(--display);font-weight:600;
  font-size:1.05rem;letter-spacing:.01em;
  margin:2rem 0 .5rem;
}
.caso-studio p{margin:0 0 1.05rem}
.caso-studio /* figura */
figure{margin:2.2rem 0 0;}
.caso-studio figure svg{
  width:100%;height:auto;
  background:#fff;
  border:1px solid var(--linea);
}
.caso-studio .sezione--scuro figure svg{border-color:#41505C}
.caso-studio figcaption{
  font-family:var(--dati);font-size:.74rem;line-height:1.6;
  color:var(--grigio);margin-top:.7rem;max-width:70ch;
}
.caso-studio .sezione--scuro figcaption{color:#9FB0BE}
.caso-studio figcaption b{color:var(--inchiostro);font-weight:600}
.caso-studio .sezione--scuro figcaption b{color:#fff}
.caso-studio /* elenco criticità: la struttura codifica il contenuto */
.crit{list-style:none;padding:0;margin:1.6rem 0 0;display:grid;gap:0}
.caso-studio .crit li{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:1.1rem;
  padding:1.15rem 0;
  border-top:1px solid var(--linea);
}
.caso-studio .sezione--scuro .crit li{border-top-color:#41505C}
.caso-studio .crit li:last-child{border-bottom:1px solid var(--linea)}
.caso-studio .sezione--scuro .crit li:last-child{border-bottom-color:#41505C}
.caso-studio .crit b{
  font-family:var(--display);font-weight:600;display:block;margin-bottom:.15rem;
}
.caso-studio .crit .ico{
  width:26px;height:26px;margin-top:.3rem;flex:none;color:var(--blu-chiaro);
}
.caso-studio /* tabella confronto */
.tab-wrap{overflow-x:auto;margin-top:1.8rem}
.caso-studio table{border-collapse:collapse;width:100%;min-width:560px;font-size:.95rem}
.caso-studio caption{
  text-align:left;font-family:var(--dati);font-size:.74rem;
  letter-spacing:.1em;text-transform:uppercase;color:var(--grigio);
  padding-bottom:.7rem;
}
.caso-studio th, .caso-studio td{
  text-align:left;padding:.85rem 1rem;
  border-bottom:1px solid var(--linea);vertical-align:top;
}
.caso-studio thead th{
  font-family:var(--display);font-weight:600;font-size:.83rem;
  letter-spacing:.04em;text-transform:uppercase;
  border-bottom:2px solid var(--inchiostro);
}
.caso-studio tbody th{font-family:var(--testo);font-weight:600;width:30%}
.caso-studio td.iot{background:#EAF2FA;color:var(--blu)}
.caso-studio /* esito */
.esito{
  border-left:3px solid var(--segnale);
  padding:.2rem 0 .2rem 1.5rem;
  margin:2rem 0;
}
.caso-studio .esito p:last-child{margin-bottom:0}
.caso-studio /* raccomandazioni */
.racc{list-style:none;padding:0;margin:1.4rem 0 0;counter-reset:r}
.caso-studio .racc li{
  counter-increment:r;
  position:relative;padding:0 0 1.05rem 3.1rem;
}
.caso-studio .racc li::before{
  content:"R" counter(r,decimal-leading-zero);
  position:absolute;left:0;top:.16rem;
  font-family:var(--dati);font-size:.76rem;font-weight:600;
  color:var(--blu);letter-spacing:.06em;
}
.caso-studio /* CTA */
.cta{
  background:var(--inchiostro);color:var(--carta);
  padding:clamp(2.6rem,5vw,3.8rem) 0;
}
.caso-studio .cta h2{color:#fff;max-width:22ch}
.caso-studio .cta p{color:#C3CCD4;max-width:60ch}
.caso-studio .azioni{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}
.caso-studio .btn{
  font-family:var(--display);font-weight:600;font-size:.95rem;
  text-decoration:none;padding:.85rem 1.5rem;
  border:1.5px solid var(--carta);
  transition:background .18s ease,color .18s ease;
}
.caso-studio .btn--pieno{background:var(--carta);color:var(--inchiostro)}
.caso-studio .btn--pieno:hover{background:var(--blu-chiaro);border-color:var(--blu-chiaro);color:#fff}
.caso-studio .btn--vuoto{color:var(--carta)}
.caso-studio .btn--vuoto:hover{background:var(--carta);color:var(--inchiostro)}
.caso-studio /* mobile */
@media(max-width:640px){
  body{font-size:1.02rem;line-height:1.68}
  .scheda{grid-template-columns:1fr 1fr}
  .scheda div{border-right:0;border-top:1px solid var(--linea);padding-right:.6rem}
  .scheda div:nth-child(-n+2){border-top:0}
  .scheda div:nth-child(odd){border-right:1px solid var(--linea)}
  .crit li{grid-template-columns:1fr;gap:.5rem}
  .crit .ico{margin-top:0}
  .azioni .btn{flex:1 1 100%;text-align:center}
  figcaption{font-size:.7rem}
}
.caso-studio /* footer */
.piede{
  padding:2.2rem 0 3rem;font-size:.9rem;color:var(--grigio);
  border-top:1px solid var(--linea);
}
.caso-studio .piede p{margin:0 0 .35rem}
.caso-studio .nota{
  font-family:var(--dati);font-size:.72rem;line-height:1.7;
  color:var(--grigio);margin-top:1.6rem;max-width:70ch;
}