/* vistiusa.com — foglio di stile unico. Nessun JavaScript, nessuna risorsa esterna.
   Display: Fraunces (variabile). Testo: Inter (variabile). Entrambi self-hosted.
   Impaginazione: colonna di testo a misura leggibile, con blocchi larghi che
   "sfondano" ai lati tramite grid — vedi .col. */

:root{
  /* superfici */
  --paper:#faf8f4;
  --paper-2:#f2ede3;
  --card:#ffffff;
  /* inchiostri */
  --ink:#15140f;
  --ink-2:#403c33;
  --muted:#767065;
  --rule:#e7e1d5;
  --rule-2:#d3ccbb;
  /* verde profondo: testate e piè di pagina */
  --deep:#0f332a;
  --deep-2:#0a2620;
  --on-deep:#f3f0e8;
  --on-deep-mute:#a3b5ad;
  /* accento rame */
  --accent:#b0511b;
  --accent-2:#8d3f12;
  --accent-on-deep:#e9a273;
  --accent-soft:#fbeee4;
  --green-soft:#e9f0ea;
  --green-line:#bdd2c5;
  /* misure */
  --measure:41rem;
  --gutter:1.5rem;
  --display:"Fraunces","Iowan Old Style",Palatino,Georgia,serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --shadow:0 1px 2px rgba(21,20,15,.04), 0 8px 24px -12px rgba(21,20,15,.16);
  --shadow-lg:0 2px 4px rgba(21,20,15,.05), 0 20px 48px -20px rgba(21,20,15,.28);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-2);
  font-family:var(--sans);
  font-size:1.0625rem;
  line-height:1.72;
  font-synthesis-weight:none;
  font-feature-settings:"kern","liga","cv05","ss03";
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* ============ impalcatura ============ */
.wrap{max-width:74rem;margin:0 auto;padding:0 var(--gutter)}

/* La colonna di testo è una griglia: i figli stanno sulla misura di lettura,
   quelli marcati sfondano fino ai bordi del contenitore. */
.col{
  display:grid;
  grid-template-columns:
    [text-start] min(100%,var(--measure)) [text-end]
    minmax(0,1fr) [wide-end];
}
.col > *{grid-column:text}
.col > .tablewrap,
.col > .grid,
.col > .triage,
.col > .hero-stats,
.col > .wide{grid-column:text-start / wide-end}
.skip{position:absolute;left:-9999px}
.skip:focus{left:1rem;top:1rem;background:var(--accent);color:#fff;padding:.6rem 1rem;z-index:99;border-radius:6px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px}

/* ============ testata ============ */
.masthead{
  position:sticky;top:0;z-index:40;border-top:3px solid var(--accent);
  background:rgba(250,248,244,.86);
  backdrop-filter:saturate(1.6) blur(12px);
  -webkit-backdrop-filter:saturate(1.6) blur(12px);
  border-bottom:1px solid var(--rule);
}
.masthead .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem 2rem;padding-top:.9rem;padding-bottom:.9rem}
.logo{
  font-family:var(--display);font-variation-settings:"opsz" 60;
  font-size:1.5rem;font-weight:600;line-height:1;letter-spacing:-.02em;
  color:var(--ink);text-decoration:none;white-space:nowrap;
}
.logo b{font-weight:600;color:var(--accent)}
.logo span{color:var(--muted);font-weight:400}
.tagline{
  font-size:.75rem;color:var(--muted);margin:0 auto 0 0;letter-spacing:.01em;
  padding-left:1.25rem;border-left:1px solid var(--rule-2);
}
@media(max-width:56rem){.tagline{display:none}}
.nav{display:flex;flex-wrap:wrap;gap:1.35rem;font-size:.875rem;font-weight:500}
.nav a{
  color:var(--ink-2);text-decoration:none;position:relative;padding:.15rem 0;
  transition:color .18s ease;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-.1rem;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s cubic-bezier(.2,.7,.3,1);
}
.nav a:hover{color:var(--accent)}
.nav a:hover::after,.nav a[aria-current]::after{transform:scaleX(1)}
.nav a[aria-current]{color:var(--accent)}

/* Testata che si ritrae scendendo e torna risalendo (vedi assets/nav.js).
   Solo sotto i 64rem: sul desktop la barra è sottile e non dà fastidio.
   Senza JavaScript la classe non viene mai applicata e la barra resta fissa. */
@media(max-width:63.99rem){
  .masthead{transition:transform .26s cubic-bezier(.2,.7,.3,1)}
  .masthead.is-hidden{transform:translateY(-100%)}
}
@media(prefers-reduced-motion:reduce){.masthead{transition:none}}

/* Su schermo stretto la navigazione sta su una riga sola e scorre in orizzontale,
   così la testata è alta la metà. */
@media(max-width:47.99rem){
  .masthead .wrap{flex-wrap:nowrap;gap:1rem;padding-top:.7rem;padding-bottom:.7rem}
  .logo{font-size:1.28rem}
  .nav{
    flex-wrap:nowrap;overflow-x:auto;gap:1.1rem;font-size:.82rem;
    margin-left:auto;scrollbar-width:none;-ms-overflow-style:none;
    -webkit-overflow-scrolling:touch;mask-image:linear-gradient(90deg,#000 88%,transparent);
  }
  .nav::-webkit-scrollbar{display:none}
  .nav a{white-space:nowrap}
}

/* ============ tipografia ============ */
h1,h2,h3{
  font-family:var(--display);color:var(--ink);
  font-weight:600;line-height:1.12;letter-spacing:-.021em;margin:0 0 .7rem;
}
h1{
  font-size:clamp(2.35rem,1.5rem + 3.3vw,4.05rem);
  line-height:1.02;letter-spacing:-.032em;font-weight:600;
  font-variation-settings:"opsz" 144;
}
h2{
  font-size:clamp(1.6rem,1.32rem + 1.05vw,2.2rem);
  margin-top:3.4rem;font-variation-settings:"opsz" 72;letter-spacing:-.026em;
}
h3{font-size:1.28rem;margin-top:2.3rem;font-variation-settings:"opsz" 36;letter-spacing:-.018em}
h4{font-family:var(--sans);font-size:1rem;font-weight:600;color:var(--ink);margin:1.6rem 0 .5rem;letter-spacing:0}
/* filetto d'accento sui titoli di secondo livello */
article h2{position:relative;padding-top:1.5rem}
article h2::before{
  content:"";position:absolute;top:0;left:0;width:2.75rem;height:3px;
  background:var(--accent);border-radius:2px;
}
p{margin:0 0 1.2rem}
a{color:var(--accent);text-decoration-thickness:.07em;text-underline-offset:.2em;transition:color .15s ease}
a:hover{color:var(--accent-2)}
strong{font-weight:600;color:var(--ink)}
em,i{font-style:italic}
ul,ol{margin:0 0 1.35rem;padding-left:1.35rem}
li{margin-bottom:.6rem;padding-left:.2rem}
li::marker{color:var(--accent);font-weight:600}
ol li::marker{font-family:var(--display);font-size:.95em}
hr{border:0;border-top:1px solid var(--rule);margin:3rem 0}

/* ============ testata di pagina, su fondo profondo ============ */
.pagehead{
  background:var(--deep);
  background-image:
    radial-gradient(75rem 32rem at 88% -25%, rgba(233,162,115,.16), transparent 62%),
    radial-gradient(50rem 28rem at 6% 118%, rgba(255,255,255,.055), transparent 60%);
  color:var(--on-deep);
  padding:clamp(3.2rem,2rem + 4vw,5.6rem) 0 clamp(3.6rem,2.4rem + 4vw,6rem);
}
.pagehead h1{color:#fff;max-width:20ch}
.pagehead .col{--measure:46rem}
.kicker{
  display:inline-flex;align-items:center;gap:.6rem;
  font-size:.72rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent-on-deep);margin:0 0 1.3rem;
}
.kicker::before{content:"";width:1.6rem;height:2px;background:var(--accent-on-deep);border-radius:2px}
.standfirst{
  font-size:clamp(1.1rem,1rem + .5vw,1.32rem);line-height:1.62;
  color:var(--on-deep-mute);margin:1.4rem 0 0;font-weight:400;
}
.pagehead .standfirst strong{color:var(--on-deep)}
.byline{
  font-size:.78rem;color:var(--on-deep-mute);margin-top:2.2rem;
  display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;align-items:center;
}
.byline span{display:inline-flex;align-items:center;gap:.45rem}
.byline span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent-on-deep);opacity:.8}

/* ============ corpo ============ */
article{padding:clamp(2.6rem,2rem + 2vw,4rem) 0 1.5rem}
article .col > :first-child{margin-top:0}
article .col > h2:first-child{padding-top:0}
article .col > h2:first-child::before{display:none}

/* impaginazione a due colonne quando c'è la scheda dati */
.layout{display:grid;gap:2.5rem}
@media(min-width:64rem){
  .withside .layout{grid-template-columns:minmax(0,1fr) 19.5rem;gap:4rem;align-items:start}
  .withside .layout > .col{grid-column:1;grid-row:1}
  .withside .layout > .side{grid-column:2;grid-row:1}
  .withside .col{--measure:40rem}
}
.side{min-width:0}

/* ============ scheda dati ============ */
.facts{
  background:var(--card);border:1px solid var(--rule);border-radius:10px;
  box-shadow:var(--shadow);overflow:hidden;
}
.facts::before{content:"";display:block;height:4px;background:linear-gradient(90deg,var(--accent),#d98b4a)}
.facts .facts-title{
  font-size:.7rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;
  color:var(--muted);margin:0;padding:1rem 1.25rem .55rem;
}
.facts dl{margin:0;padding:0 1.25rem 1.15rem}
.facts dt{
  font-size:.68rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);margin-top:1rem;
}
.facts dd{margin:.2rem 0 0;font-size:.9375rem;line-height:1.5;color:var(--ink-2)}
.facts dd strong{color:var(--ink)}
@media(min-width:64rem){.side .facts{position:sticky;top:5.25rem}}

/* ============ riquadri ============ */
.box{
  border:1px solid var(--rule);background:var(--card);border-left:3px solid var(--rule-2);
  padding:1.4rem 1.6rem;margin:2.4rem 0;border-radius:8px;box-shadow:var(--shadow);
}
.box > :last-child{margin-bottom:0}
.box h3,.box h4{margin-top:0}
.box ol,.box ul{margin-bottom:0}
.box.accent{border-left-color:var(--accent);background:linear-gradient(180deg,var(--accent-soft),var(--card) 68%)}
.box.flag{border-left-color:#8d3f12;background:linear-gradient(180deg,#fbece9,var(--card) 68%)}
.box .label{
  display:inline-flex;align-items:center;gap:.5rem;
  font-size:.7rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);margin-bottom:.75rem;
}
.box.flag .label{color:#8d3f12}
.box.accent .label{color:var(--accent)}
.box .label::before{content:"";width:1.1rem;height:2px;background:currentColor;border-radius:2px}

/* ============ tabelle ============ */
.tablewrap{
  overflow-x:auto;margin:2.4rem 0;border:1px solid var(--rule);border-radius:10px;
  box-shadow:var(--shadow);
  -webkit-overflow-scrolling:touch;
  /* ombre di scorrimento: senza JavaScript, i due gradienti "local" coprono
     quelli "scroll" finché non si scorre, così l'ombra appare solo se serve. */
  background:
    linear-gradient(to right, var(--card) 40%, rgba(255,255,255,0)) left center/2.5rem 100% no-repeat local,
    linear-gradient(to left,  var(--card) 40%, rgba(255,255,255,0)) right center/2.5rem 100% no-repeat local,
    radial-gradient(farthest-side at 0 50%, rgba(21,20,15,.16), rgba(21,20,15,0)) left center/1rem 100% no-repeat scroll,
    radial-gradient(farthest-side at 100% 50%, rgba(21,20,15,.16), rgba(21,20,15,0)) right center/1rem 100% no-repeat scroll,
    var(--card);
}
table{border-collapse:collapse;width:100%;font-size:.875rem;line-height:1.5}
.tablewrap > table{min-width:52rem}
th,td{text-align:left;padding:.85rem 1rem;border-bottom:1px solid var(--rule);vertical-align:top}
thead th{
  background:var(--paper-2);font-size:.68rem;letter-spacing:.09em;text-transform:uppercase;
  color:var(--ink);font-weight:600;position:sticky;top:0;z-index:2;
  border-bottom:1px solid var(--rule-2);white-space:nowrap;
}
tbody th{font-weight:600;white-space:nowrap;color:var(--ink);background:var(--card);font-size:.9rem}
tbody th a{text-decoration:none;color:var(--ink);border-bottom:1.5px solid var(--accent);padding-bottom:1px}
tbody th a:hover{color:var(--accent)}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
tbody tr:nth-child(even) th,tbody tr:nth-child(even) td{background:#fdfcfa}
tbody tr:hover th,tbody tr:hover td{background:var(--green-soft)}
.yes,.no{font-weight:600;white-space:nowrap}
.yes{color:#1a6b4f}
.no{color:#a4441a}
td small,th small{color:var(--muted);display:block;font-size:.78rem;line-height:1.4;margin-top:.25rem;font-weight:400;white-space:normal}
/* prima colonna bloccata sulla tabella grande */
@media(min-width:52rem){
  .tablewrap.pinned tbody th,.tablewrap.pinned thead th:first-child{
    position:sticky;left:0;z-index:1;border-right:1px solid var(--rule);
  }
  .tablewrap.pinned thead th:first-child{z-index:3}
}

/* ============ schede ============ */
.grid{display:grid;gap:1.1rem;margin:2.4rem 0}
@media(min-width:44rem){.grid.two{grid-template-columns:repeat(2,1fr)}}
@media(min-width:44rem){.grid.three{grid-template-columns:repeat(2,1fr)}}
@media(min-width:66rem){.grid.three{grid-template-columns:repeat(3,1fr)}}
.card{
  background:var(--card);border:1px solid var(--rule);border-radius:12px;
  padding:1.5rem 1.55rem 1.4rem;display:flex;flex-direction:column;
  box-shadow:var(--shadow);position:relative;overflow:hidden;
  transition:transform .22s cubic-bezier(.2,.7,.3,1), box-shadow .22s ease, border-color .22s ease;
}
.card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:3px;
  background:linear-gradient(90deg,var(--accent),#d98b4a);
  transform:scaleX(0);transform-origin:left;transition:transform .28s cubic-bezier(.2,.7,.3,1);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--rule-2)}
.card:hover::before{transform:scaleX(1)}
.card .tag{
  font-size:.66rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);margin:0 0 .7rem;
}
.card h3{margin:0 0 .55rem;font-size:1.22rem;line-height:1.2}
.card h3 a{text-decoration:none;color:var(--ink)}
.card h3 a::after{content:"";position:absolute;inset:0}
.card:hover h3 a{color:var(--accent)}
.card p{font-size:.9375rem;line-height:1.6;color:var(--ink-2);margin:0 0 1.1rem}
.card .more{
  margin-top:auto;font-size:.82rem;font-weight:600;color:var(--accent);
  display:inline-flex;align-items:center;gap:.35rem;
}
.card .more a{text-decoration:none}
.card .more::after{content:"→";transition:transform .22s cubic-bezier(.2,.7,.3,1);display:inline-block}
.card:hover .more::after{transform:translateX(4px)}

/* ============ triage in homepage ============ */
.triage{margin:2.6rem 0 1rem;counter-reset:tri}
.triage-row{
  display:grid;gap:1rem 1.6rem;padding:1.9rem 0;border-top:1px solid var(--rule);
  align-items:start;counter-increment:tri;
}
.triage-row:last-child{border-bottom:1px solid var(--rule)}
@media(min-width:50rem){.triage-row{grid-template-columns:3rem 17rem 1fr}}
.triage-n{
  font-family:var(--display);font-variation-settings:"opsz" 60;
  font-size:1.6rem;font-weight:600;color:var(--rule-2);line-height:1;padding-top:.15rem;
}
.triage-n::before{content:counter(tri,decimal-leading-zero)}
.triage-q{
  font-family:var(--display);font-variation-settings:"opsz" 40;
  font-size:1.2rem;line-height:1.28;color:var(--ink);font-weight:600;letter-spacing:-.015em;
}
.triage-a{font-size:.9375rem;color:var(--ink-2)}
.triage-a p{margin:0 0 .6rem;line-height:1.65}
.routes{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:.85rem}
.routes a{
  font-size:.8125rem;font-weight:600;text-decoration:none;
  border:1px solid var(--rule-2);background:var(--card);padding:.34rem .8rem;
  border-radius:999px;color:var(--ink-2);
  transition:all .18s ease;
}
.routes a:hover{border-color:var(--accent);color:#fff;background:var(--accent);transform:translateY(-1px)}

/* ============ hero di apertura ============ */
.hero{
  background:var(--deep);
  background-image:
    radial-gradient(70rem 34rem at 82% -18%, rgba(233,162,115,.2), transparent 60%),
    radial-gradient(46rem 30rem at 2% 112%, rgba(255,255,255,.07), transparent 58%);
  color:var(--on-deep);
  padding:clamp(3.6rem,2rem + 6vw,7rem) 0 clamp(3.4rem,2rem + 5vw,6rem);
  position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(233,162,115,.5),transparent);
}
.hero .col{--measure:48rem}
.hero h1{color:#fff;max-width:16ch;margin-bottom:1.5rem}
.hero .standfirst{font-size:clamp(1.15rem,1rem + .7vw,1.45rem);color:#cdd9d3}
.hero-stats{
  display:grid;gap:1px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.13);
  border-radius:10px;overflow:hidden;margin-top:3rem;
}
@media(min-width:44rem){.hero-stats{grid-template-columns:repeat(3,1fr)}}
.hero-stat{background:rgba(255,255,255,.035);padding:1.5rem 1.5rem}
.hero-stat b{
  display:block;font-family:var(--display);font-variation-settings:"opsz" 72;
  font-size:2.35rem;font-weight:600;color:var(--accent-on-deep);line-height:1;margin-bottom:.5rem;
  letter-spacing:-.02em;
}
.hero-stat span{font-size:.875rem;color:var(--on-deep-mute);line-height:1.45;display:block}

/* ============ blocco di rimando ============ */
.signpost{
  border-top:3px solid var(--ink);margin:4rem 0 0;padding:1.9rem 0 0;
}
.signpost h2{font-size:1.3rem;margin:0 0 .8rem;padding-top:0}
.signpost h2::before{display:none}
.signpost p,.signpost ul{font-size:.9375rem}

/* ============ correlati ============ */
.related{border-top:1px solid var(--rule);margin-top:3.5rem;padding-top:1.6rem}
.related h2{
  font-size:.7rem;letter-spacing:.13em;text-transform:uppercase;font-family:var(--sans);
  color:var(--muted);margin:0 0 1rem;font-weight:600;padding-top:0;
}
.related h2::before{display:none}
.related ul{list-style:none;padding:0;margin:0;display:grid;gap:.55rem}
@media(min-width:40rem){.related ul{grid-template-columns:repeat(2,1fr);gap:.55rem 2rem}}
.related li{margin:0;font-size:.9375rem;font-weight:500}
.related a{text-decoration:none;display:inline-flex;gap:.5rem;align-items:baseline}
.related a::before{content:"→";color:var(--rule-2);transition:color .18s ease,transform .18s ease}
.related a:hover::before{color:var(--accent)}
.related a:hover{text-decoration:underline}

/* ============ piè di pagina ============ */
.foot{
  background:var(--deep-2);color:var(--on-deep-mute);margin-top:5rem;
  padding:3.4rem 0 3rem;font-size:.875rem;
  border-top:1px solid rgba(255,255,255,.08);
}
.foot .cols{display:grid;gap:2.4rem}
@media(min-width:48rem){.foot .cols{grid-template-columns:1.5fr 1fr 1fr 1fr}}
.foot h2{
  font-family:var(--sans);font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--accent-on-deep);margin:0 0 .9rem;font-weight:600;padding-top:0;
}
.foot h2::before{display:none}
.foot .brand{font-family:var(--display);font-variation-settings:"opsz" 60;font-size:1.35rem;font-weight:600;color:#fff;letter-spacing:-.02em;margin-bottom:.6rem;display:block}
.foot p{line-height:1.62;max-width:26rem}
.foot ul{list-style:none;padding:0;margin:0}
.foot li{margin-bottom:.5rem;line-height:1.4}
.foot a{color:var(--on-deep-mute);text-decoration:none;transition:color .16s ease}
.foot a:hover{color:var(--accent-on-deep)}
.foot .disclaimer{
  margin-top:2.8rem;padding-top:1.6rem;border-top:1px solid rgba(255,255,255,.1);
  font-size:.8125rem;color:#8a9a93;max-width:52rem;
}
.foot .disclaimer p{margin:0 0 .6rem;max-width:none}
.foot .disclaimer strong{color:var(--on-deep)}
.foot .disclaimer a{text-decoration:underline;text-underline-offset:.18em}

@media print{
  .masthead,.foot,.related{display:none}
  body{background:#fff;color:#000}
  .pagehead,.hero{background:#fff;color:#000;padding:1rem 0}
  .pagehead h1,.hero h1{color:#000}
  .card,.box,.facts,.tablewrap{box-shadow:none}
}