:root{
  --navy:#0b3a7a;--navy-d:#082a5a;--sky:#e8f3fc;--orange:#f08c00;--orange-d:#c87300;
  --ink:#1b2433;--muted:#566176;--line:#dbe3ee;--bg:#fff;--card:#fff;--radius:14px;
}
@media (prefers-color-scheme:dark){
  :root{--ink:#e7edf6;--muted:#a3b0c4;--line:#26344b;--bg:#0c1524;--card:#121e33;--sky:#12233d}
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
img{max-width:100%;height:auto}
a{color:var(--navy)}
@media (prefers-color-scheme:dark){a{color:#7fb6f5}}
.wrap{width:min(1100px,100% - 32px);margin-inline:auto}
h1,h2,h3{line-height:1.2;margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.2rem)}
h2{font-size:clamp(1.5rem,3vw,2.1rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
.lead{font-size:1.2rem;color:var(--muted);max-width:60ch}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--orange-d);margin-bottom:.8rem}

/* header */
header.site{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand img{height:44px;width:auto;display:block}
nav.main{display:flex;align-items:center;gap:6px}
nav.main a{padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--ink);font-weight:500}
nav.main a:hover,nav.main a[aria-current=page]{background:var(--sky);color:var(--navy)}
@media (prefers-color-scheme:dark){nav.main a:hover,nav.main a[aria-current=page]{color:#fff}}
nav.main a.cta{background:var(--orange);color:#1b1200;font-weight:700}
nav.main a.cta:hover{background:var(--orange-d);color:#fff}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 12px;font:inherit;color:var(--ink);cursor:pointer}
@media (max-width:820px){
  .menu-btn{display:block}
  nav.main{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;background:var(--bg);border-bottom:1px solid var(--line);padding:12px 16px}
  nav.main.open{display:flex}
}

/* sections */
section{padding:72px 0}
section.alt{background:var(--sky)}
.hero{padding:88px 0 72px;background:linear-gradient(180deg,var(--sky),var(--bg))}
.hero .wrap{display:grid;gap:40px;grid-template-columns:1.2fr .8fr;align-items:center}
@media (max-width:820px){.hero .wrap{grid-template-columns:1fr}}
.hero-art{display:flex;justify-content:center}
.hero-art img{width:min(380px,100%);filter:drop-shadow(0 12px 30px rgba(11,58,122,.25))}
.page-head{padding:64px 0 40px;background:linear-gradient(180deg,var(--sky),var(--bg))}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.btn{display:inline-block;padding:12px 22px;border-radius:10px;font-weight:700;text-decoration:none;border:2px solid var(--navy);color:var(--navy);background:transparent}
.btn.primary{background:var(--orange);border-color:var(--orange);color:#1b1200}
.btn.primary:hover{background:var(--orange-d);border-color:var(--orange-d);color:#fff}
.btn:hover{background:var(--navy);color:#fff}
@media (prefers-color-scheme:dark){.btn{border-color:#7fb6f5;color:#7fb6f5}.btn:hover{background:#7fb6f5;color:#0c1524}}

.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.card h3{color:var(--navy)}
@media (prefers-color-scheme:dark){.card h3{color:#9cc8f7}}
.card .tag{font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--orange-d)}
.card ul{padding-left:1.1em;margin:0 0 1em}
.card a.more{font-weight:600}
.section-head{max-width:62ch;margin-bottom:36px}

.product{display:grid;gap:28px;grid-template-columns:1fr 1.4fr;padding:40px 0;border-top:1px solid var(--line)}
.product:first-of-type{border-top:0}
@media (max-width:820px){.product{grid-template-columns:1fr}}
.product .name{font-size:2rem;font-weight:800;color:var(--navy);margin:0}
@media (prefers-color-scheme:dark){.product .name{color:#9cc8f7}}
.product ul{padding-left:1.1em}

.steps{counter-reset:s;display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));padding:0;list-style:none;margin:0}
.steps li{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.steps li::before{content:counter(s);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--navy);color:#fff;font-weight:700;margin-bottom:12px}

.cta-band{background:var(--navy);color:#fff;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#cfe0f5;margin-inline:auto}

/* contact */
.contact-grid{display:grid;gap:40px;grid-template-columns:1fr 1.2fr}
@media (max-width:820px){.contact-grid{grid-template-columns:1fr}}
form label{display:block;font-weight:600;margin:0 0 14px}
form input,form textarea{width:100%;margin-top:6px;padding:11px 12px;font:inherit;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:8px}
form input:focus,form textarea:focus{outline:2px solid var(--orange);border-color:var(--orange)}
form .check{display:flex;gap:10px;font-weight:400;font-size:.92rem;color:var(--muted)}
form .check input{width:auto;margin-top:5px}
.hp{position:absolute;left:-9999px}
.notice{padding:14px 16px;border-radius:10px;margin-bottom:20px;font-weight:600}
.notice.ok{background:#e3f6e8;color:#14532d}
.notice.err{background:#fde8e8;color:#7f1d1d}
dl.data dt{font-weight:700;margin-top:14px}
dl.data dd{margin:0;color:var(--muted)}

/* footer */
footer.site{border-top:1px solid var(--line);padding:40px 0 28px;font-size:.92rem;color:var(--muted)}
footer.site .cols{display:grid;gap:28px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin-bottom:24px}
footer.site h4{margin:0 0 8px;color:var(--ink)}
footer.site ul{list-style:none;margin:0;padding:0}
footer.site li{margin:4px 0}
footer.site a{color:inherit}
.legal{max-width:760px}
.legal h2{font-size:1.3rem;margin-top:1.6em}
.todo{background:#fff3cd;color:#664d03;padding:2px 6px;border-radius:4px;font-size:.9em}

/* immagini e icone */
.ico{display:grid;place-items:center;width:48px;height:48px;border-radius:12px;background:var(--sky);color:var(--navy);margin-bottom:14px}
.ico svg{width:26px;height:26px}
@media (prefers-color-scheme:dark){.ico{color:#9cc8f7}}
.hero-img{width:min(520px,100%);height:auto;border-radius:22px;box-shadow:0 18px 40px rgba(11,58,122,.22)}
.cimg{display:block;width:100%;height:auto;border-radius:12px;margin:0 0 16px;border:1px solid var(--line)}
.product .cimg{margin-top:18px}
section.fig{padding:0 0 24px;margin-top:-8px}
section.fig img{display:block;width:min(820px,100%);height:auto;margin-inline:auto;border-radius:var(--radius);box-shadow:0 14px 36px rgba(11,58,122,.16)}
a.card.prob{display:block;text-decoration:none;color:var(--ink);transition:transform .15s,border-color .15s}
a.card.prob:hover{transform:translateY(-2px);border-color:var(--orange)}
a.card.prob h3{font-size:1.1rem}
a.card.prob p{margin:0;color:var(--muted)}
a.card.prob .more{display:block;margin-top:8px;font-weight:700;color:var(--navy)}
@media (prefers-color-scheme:dark){a.card.prob .more{color:#9cc8f7}}

/* chi siamo */
.timeline{list-style:none;margin:0;padding:0 0 0 8px;border-left:3px solid var(--line)}
.timeline li{position:relative;display:grid;grid-template-columns:110px 1fr;gap:16px;padding:0 0 28px 24px}
.timeline li::before{content:"";position:absolute;left:-14px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--orange);border:3px solid var(--bg)}
.timeline .year{font-weight:800;color:var(--navy);font-size:1.1rem}
@media (prefers-color-scheme:dark){.timeline .year{color:#9cc8f7}}
.timeline h3{margin:0 0 6px}
.timeline p{margin:0;color:var(--muted)}
@media (max-width:600px){.timeline li{grid-template-columns:1fr;gap:4px}}
.person{display:flex;gap:20px;align-items:flex-start}
.avatar{flex:none;display:grid;place-items:center;width:84px;height:84px;border-radius:50%;background:var(--navy);color:#fff;font-weight:800;font-size:1.6rem}
.person h3{margin:0}
.person .role{color:var(--orange-d);font-weight:700;margin:2px 0 8px}
.person+.person{margin-top:24px}