/* Skylab Engineering · foglio di stile comune
   Colori fissati da Luca: blu principale con inserti oro; verde e corallo secondari, il verde con parsimonia.
   Carattere: Roboto, ospitato sul sito (nessuna richiesta a Google, nessun cookie). Tema unico chiaro. */

@font-face{font-family:"Roboto";src:url("fonts/roboto-latin-400-normal.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Roboto";src:url("fonts/roboto-latin-500-normal.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Roboto";src:url("fonts/roboto-latin-700-normal.woff2") format("woff2");font-weight:700;font-style:normal;font-display:swap}

:root{
  color-scheme: light;
  --paper:#F4F5F7;  --paper-2:#E9EDF3;  --white:#FFFFFF;
  --ink:#1A1F26;    --muted:#4A5A73;              /* 6,5:1 sulla carta */
  --blu:#36578C;    --blu-d:#284169;  --blu-dd:#1E3252;
  --oro:#A67C3D;    --oro-t:#8C6630;  --oro-f:#C49A5A;  --oro-l:#D9B37A;
  --verde:#2A6B3D;  --verde-d:#1F5230;  --corallo:#EB5757;
  --on:#FFFFFF;     --on-soft:#D7DDE8;
  --ok:#2A6B3D;     --err:#B3261E;
  --sans:"Roboto","Helvetica Neue",Arial,sans-serif;
  --m:clamp(16px,3vw,40px);
  --fs-1:14px; --fs-2:17px; --fs-lead:20px; --fs-3:clamp(22px,2vw,28px); --fs-5:clamp(30px,3.6vw,52px); --fs-4:clamp(36px,5vw,76px);
  --ease-out:cubic-bezier(0.22,1,0.36,1);
  --t-press:140ms; --t-hover:180ms; --t-ui:220ms;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 var(--fs-2)/1.6 var(--sans);-webkit-font-smoothing:antialiased}
::selection{background:var(--oro-l);color:var(--ink)}
img,svg{max-width:100%}
a{color:inherit}
:focus-visible{outline:3px solid var(--oro);outline-offset:3px}
h1,h2,h3,p,ul,ol,dl,figure{margin:0}
h1{font-size:var(--fs-4);line-height:1.05;font-weight:500;letter-spacing:-.025em;text-wrap:balance}
h2{font-size:var(--fs-3);line-height:1.2;font-weight:500;letter-spacing:-.01em;text-wrap:balance}
h3{font-size:var(--fs-2);line-height:1.35;font-weight:700}
.wrap{max-width:1280px;margin:0 auto;padding-inline:var(--m)}
.num{font-variant-numeric:tabular-nums}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:16px;z-index:20;background:var(--white);padding:8px 12px}
/* Movimento: un ingresso breve dell'apertura e delle intestazioni di sezione, sempre da uno stato già visibile */
@media (prefers-reduced-motion:no-preference){
  .js [data-rise]{animation:rise 700ms var(--ease-out) both;animation-delay:calc(var(--i,0) * 90ms + 80ms)}
  .js [data-reveal]{opacity:.35;transform:translateY(20px);transition:opacity 600ms var(--ease-out),transform 800ms var(--ease-out);transition-delay:calc(var(--i,0) * 70ms)}
  .js [data-reveal].is-in{opacity:1;transform:none}
}
@keyframes rise{from{opacity:.2;transform:translateY(16px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* Pulsanti e link */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;font:500 var(--fs-2)/1 var(--sans);text-decoration:none;border:0;cursor:pointer;
  background:var(--oro-l);color:var(--ink);transition:transform var(--t-press) var(--ease-out),background-color var(--t-hover) ease,color var(--t-hover) ease}
.btn:active{transform:scale(.97)}
.btn.blu{background:var(--blu);color:var(--on)}
.btn.vuoto{background:transparent;color:inherit;border:2px solid currentColor}
@media (hover:hover) and (pointer:fine){
  .btn:hover{background:var(--oro-f)}
  .btn.blu:hover{background:var(--blu-d)}
  .btn.vuoto:hover{background:var(--on);color:var(--blu-dd)}
}
.lnk{text-decoration:underline;text-decoration-thickness:.07em;text-underline-offset:.2em;text-decoration-color:color-mix(in srgb,currentColor 40%,transparent);transition:text-decoration-color var(--t-hover) ease}
@media (hover:hover) and (pointer:fine){.lnk:hover{text-decoration-color:currentColor}}

/* Intestazione */
.top{background:var(--white)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:84px}
.top .logo{display:block;flex:none}
.top .logo img{display:block;height:46px;width:auto}
.top nav ul{list-style:none;padding:0;display:flex;gap:26px;align-items:center}
.top nav a{font-size:16px;font-weight:500;text-decoration:none;padding-block:8px}
.top nav a[aria-current="page"]{color:var(--blu);text-decoration:underline;text-underline-offset:.35em;text-decoration-thickness:2px}
@media (hover:hover) and (pointer:fine){.top nav a:hover{color:var(--blu)}}
.top .tel{font-size:16px;font-weight:500;white-space:nowrap;text-decoration:none;color:var(--blu)}
.menu-btn{display:none}
@media (max-width:1020px){
  .top nav{display:none}
  .top nav.open{display:block;position:absolute;left:0;right:0;top:84px;background:var(--white);z-index:10;padding:8px var(--m) 24px}
  .top nav.open ul{flex-direction:column;align-items:flex-start;gap:4px}
  .top nav.open a{display:block;font-size:20px;padding-block:10px}
  .menu-btn{display:inline-flex;align-items:center;min-height:44px;padding:0 4px;background:none;border:0;font:500 16px var(--sans);color:var(--ink);cursor:pointer}
  .top .tel{display:none}
  .top{position:relative}
}
@media (max-width:420px){.top .logo img{height:38px}}

/* Piede */
.foot{background:var(--blu-dd);color:var(--on);padding-block:56px 40px}
.foot .grid{display:grid;grid-template-columns:repeat(12,1fr);gap:32px 24px}
.foot .logo{grid-column:1/span 4}
.foot .logo img{display:block;width:100%;max-width:300px;height:auto}
.foot .col{grid-column:span 2;font-size:var(--fs-1);line-height:1.55;color:var(--on-soft)}
.foot .col b{display:block;color:var(--on);font-weight:500;margin-bottom:6px}
.foot .col a{text-decoration:none}
@media (hover:hover) and (pointer:fine){.foot .col a:hover{color:var(--on);text-decoration:underline}}
.foot .legal{grid-column:1/-1;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;padding-top:24px;font-size:var(--fs-1);color:var(--on-soft)}
.foot .legal b{color:var(--oro-l);font-weight:500}
@media (max-width:900px){.foot .logo{grid-column:1/-1}.foot .col{grid-column:span 6}}
@media (max-width:480px){.foot .col{grid-column:1/-1}}