/* ==========================================================
   STIROVAP – style.css
   Indice: 1 Variabili · 2 Base · 3 Header · 4 Bottoni · 5 Hero
   6 Sezioni · 7 Card e prodotti · 8 CTA e footer · 9 Animazioni
   10 Responsive
   ========================================================== */

/* 1. VARIABILI */
:root{
  --blue:#00A3EE; --black:#000; --white:#fff; --ral9010:#F4F4F0;
  --bg:#F5F7FA; --line:#E5E7EB; --muted:#6B7280; --dark:#1F2937;
  --f-title:"Unbounded",system-ui,sans-serif;
  --f-text:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --h:88px; /* altezza header */
}

/* 2. BASE */
*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font:400 1rem/1.7 var(--f-text);color:var(--dark);background:var(--white);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
address{font-style:normal}
ul{list-style:none;padding:0}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.container{width:min(1200px,100% - 48px);margin-inline:auto}
section{padding:clamp(72px,9vw,128px) 0}
h1,h2,h3{font-family:var(--f-title);font-weight:500;line-height:1.2;letter-spacing:-.02em;color:var(--black)}
h1{font-size:clamp(1.75rem,3.6vw,3rem)}
h2{font-size:clamp(1.5rem,2.8vw,2.25rem)}
h3{font-size:1rem}
p+p,h2+p,h1+p{margin-top:1.1rem}
.eyebrow{font-size:.75rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:1.1rem}
.eyebrow::before{content:"";display:inline-block;width:28px;height:2px;background:var(--blue);vertical-align:middle;margin-right:12px}
.lead{font-size:1.125rem;max-width:34em}

/* 3. HEADER */
.site-header{position:fixed;inset:0 0 auto 0;z-index:50;height:var(--h);background:var(--white);border-bottom:1px solid transparent;transition:height .3s,box-shadow .3s,border-color .3s}
.site-header.scrolled{--h:68px;border-color:var(--line);box-shadow:0 4px 24px rgba(0,0,0,.06)}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:14px}
.brand img{height:34px;width:auto;transition:height .3s}
.scrolled .brand img{height:28px}
.brand span{font-size:.75rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);padding-left:14px;border-left:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:32px}
.nav a:not(.btn){font-size:.9rem;font-weight:500;position:relative;padding:6px 0}
.nav a:not(.btn)::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.nav a:not(.btn):hover::after{transform:scaleX(1)}
.nav-toggle{display:none;position:relative;width:44px;height:44px;background:none;border:0;cursor:pointer}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{position:absolute;width:22px;height:2px;background:var(--black);transition:transform .25s,background .25s}
.nav-toggle span{left:11px;top:21px}
.nav-toggle span::before,.nav-toggle span::after{content:"";left:0}
.nav-toggle span::before{top:-7px}
.nav-toggle span::after{top:7px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

/* 4. BOTTONI */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 30px;font:600 .8rem var(--f-text);letter-spacing:.09em;text-transform:uppercase;border:2px solid transparent;cursor:pointer;transition:background .25s,color .25s,border-color .25s,transform .25s}
.btn:hover{transform:translateY(-2px)}
.btn-sm{min-height:42px;padding:0 20px}
.btn-primary{background:var(--blue);color:var(--black)} /* testo nero: contrasto AA sul blu */
.btn-primary:hover{background:var(--black);color:var(--white)}
.btn-outline{border-color:var(--black);color:var(--black)}
.btn-outline:hover{background:var(--black);color:var(--white)}
.dark .btn-primary:hover{background:var(--white);color:var(--black)}
.dark .btn-outline{border-color:var(--white);color:var(--white)}
.dark .btn-outline:hover{background:var(--white);color:var(--black)}
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:2rem}
.text-link{font-size:.9rem;font-weight:600;border-bottom:2px solid var(--blue);padding-bottom:2px}
.text-link:hover{color:var(--blue)}

/* 5. HERO */
.hero{background:var(--bg);padding:calc(var(--h) + clamp(40px,6vw,80px)) 0 clamp(56px,7vw,96px);min-height:min(100vh,860px);display:flex;align-items:center}
.hero .container{width:min(1200px,100% - 48px)}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(32px,5vw,80px);align-items:center}
.hero-media{background:var(--ral9010);aspect-ratio:4/3.4}
.hero-media img{width:100%;height:100%;object-fit:contain}
.facts{display:flex;flex-wrap:wrap;gap:20px 40px;margin-top:3rem;padding-top:1.75rem;border-top:1px solid var(--line)}
.facts li{display:flex;flex-direction:column}
.facts strong{font:500 1.5rem/1.2 var(--f-title);color:var(--black)}
.facts li:last-child strong{font-size:1rem;letter-spacing:.06em;text-transform:uppercase;padding-top:.5rem}
.facts span{font-size:.8rem;color:var(--muted);margin-top:4px}

/* 6. SEZIONI */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,96px);align-items:center}
.about .media{background:var(--ral9010);aspect-ratio:6/5;overflow:hidden}
.about .media img{width:100%;height:100%;object-fit:cover}
.about .btn{margin-top:2rem}
.section-head{max-width:720px;margin-bottom:clamp(36px,5vw,64px)}
.contacts,.products{background:var(--bg)}
.catalog-cover{justify-self:center;max-width:380px;width:100%;box-shadow:0 24px 60px rgba(0,0,0,.14);transition:transform .4s,box-shadow .4s}
.catalog-cover:hover{transform:translateY(-6px);box-shadow:0 32px 72px rgba(0,0,0,.2)}
.catalog .split{grid-template-columns:1.1fr .9fr}

/* 7. CARD E PRODOTTI */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--white);padding:clamp(28px,3.4vw,44px);border-top:3px solid var(--blue);display:flex;flex-direction:column;gap:1rem;transition:transform .3s,box-shadow .3s}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(0,0,0,.09)}
.card h3{font-size:.75rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-family:var(--f-text);font-weight:600}
.card-value{font:500 1.1rem/1.5 var(--f-title);color:var(--black);overflow-wrap:anywhere}
a.card-value:hover{color:var(--blue)}
.card-link{margin-top:auto;font-size:.875rem;font-weight:600;color:var(--dark)}
.card-link:hover{color:var(--blue)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product{background:var(--white);padding-bottom:28px;transition:transform .3s,box-shadow .3s}
.product:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(0,0,0,.09)}
.product figure{aspect-ratio:4/3;overflow:hidden;background:var(--ral9010);margin-bottom:24px}
.product img{width:100%;height:100%;object-fit:contain;transition:transform .5s}
.product:hover img{transform:scale(1.04)}
.product h3,.product p{padding:0 28px}
.product p{font-size:.92rem;color:var(--muted);margin-top:.5rem}

/* 8. CTA E FOOTER */
.dark{background:var(--black);color:var(--white)}
.dark h2,.dark h3{color:var(--white)}
.cta{text-align:center}
.cta .container>p{max-width:600px;margin:1.2rem auto 0;color:var(--line)}
.cta .actions{justify-content:center}
.site-footer{padding:clamp(56px,7vw,88px) 0 0;border-top:1px solid var(--dark);font-size:.92rem;color:#D1D5DB}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr .8fr;gap:40px}
.footer-brand{font:500 1.25rem var(--f-title);color:var(--white);margin-bottom:.6rem}
.site-footer h3{font:600 .75rem var(--f-text);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:1rem}
.site-footer p+p,.site-footer address+p{margin-top:1rem}
.site-footer li+li{margin-top:.4rem}
.site-footer a:hover{color:var(--blue)}
.copy{margin-top:clamp(40px,5vw,64px);padding:24px 0;border-top:1px solid var(--dark);font-size:.8rem;color:var(--muted)}

/* 9. ANIMAZIONI (solo con JS attivo; la pagina funziona anche senza) */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.js .reveal.in{opacity:1;transform:none}
.js .cards .reveal:nth-child(2),.js .grid .reveal:nth-child(3n+2){transition-delay:.1s}
.js .cards .reveal:nth-child(3),.js .grid .reveal:nth-child(3n){transition-delay:.2s}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important}
  .js .reveal{opacity:1;transform:none}
}

/* 10. RESPONSIVE – desktop >1200 · tablet 768–1199 · mobile <768 */
@media (max-width:1199px){
  .grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:960px){
  :root{--h:72px}
  .site-header.scrolled{--h:64px}
  .nav-toggle{display:block}
  .nav{position:fixed;top:var(--h);left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:12px 24px 28px;background:var(--white);border-top:1px solid var(--line);box-shadow:0 20px 30px rgba(0,0,0,.08);opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .25s,transform .25s,visibility .25s}
  .nav.open{opacity:1;visibility:visible;transform:none}
  .nav a:not(.btn){padding:16px 0;font-size:1rem;border-bottom:1px solid var(--line)}
  .nav a:not(.btn)::after{display:none}
  .nav .btn{margin-top:20px;min-height:52px}
  .hero{min-height:0}
  .hero-grid,.split,.catalog .split{grid-template-columns:1fr}
  .about .media{order:2}
  .catalog-cover{order:2}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .container{width:min(1200px,100% - 40px)}
  .brand span{display:none}
  .brand img{height:28px}
  .cards,.grid,.footer-grid{grid-template-columns:1fr}
  .actions .btn{width:100%}
  .facts{gap:20px 28px}
  .catalog-cover{max-width:300px}
}