:root{
  --navy:#1B2A6B; --navy-deep:#0F1A45; --gold:#B08A2E; --gold-pale:#E6D3A3;
  --bg:#F4F5F9; --surface:#FFFFFF; --ink:#171B2E; --muted:#5B6180; --line:#D5D9E6;
  --band:#1B2A6B; --band-ink:#F2F0E8; --band-muted:#B9C0DC; --band-line:#3A4A8F;
  --panel:#1B2A6B; --panel-ink:#F2F0E8;
  --display:'Spectral',Georgia,'Times New Roman',serif;
  --body:'IBM Plex Sans','Helvetica Neue',Arial,sans-serif;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --navy:#8EA0E6; --navy-deep:#0F1A45; --gold:#C9A24C; --gold-pale:#7A6226;
    --bg:#0C1330; --surface:#141D42; --ink:#E9ECF5; --muted:#A3AAC6; --line:#2A3563;
    --band:#141D42; --band-ink:#F2F0E8; --band-muted:#A3AAC6; --band-line:#2A3563;
    --panel:#F2F0E8; --panel-ink:#171B2E;
  }
}
:root[data-theme="dark"]{
  --navy:#8EA0E6; --navy-deep:#0F1A45; --gold:#C9A24C; --gold-pale:#7A6226;
  --bg:#0C1330; --surface:#141D42; --ink:#E9ECF5; --muted:#A3AAC6; --line:#2A3563;
  --band:#141D42; --band-ink:#F2F0E8; --band-muted:#A3AAC6; --band-line:#2A3563;
  --panel:#F2F0E8; --panel-ink:#171B2E;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto} *{transition:none!important} }
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
html:not([data-lang="en"]) .en{display:none!important}
html[data-lang="en"] .it{display:none!important}
a{color:inherit}
h1,h2,h3{font-family:var(--display);font-weight:500;line-height:1.15;margin:0;text-wrap:balance}
p{margin:0}
.wrap{max-width:1120px;margin:0 auto;padding-inline:24px}
@media (max-width:640px){.wrap{padding-inline:18px}}
.eyebrow{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:600}
.rule{width:56px;height:2px;background:var(--gold);margin:14px 0 22px}

/* nav */
.nav{position:sticky;top:0;z-index:10;background:var(--bg);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none}
.brand b{font-family:var(--display);font-weight:600;font-size:1.25rem;letter-spacing:.01em;color:var(--navy)}
.brand span{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.links{display:flex;gap:22px;font-size:.88rem}
.links a{text-decoration:none;color:var(--muted);padding:6px 0;border-bottom:2px solid transparent}
.links a:hover,.links a:focus-visible{color:var(--ink);border-color:var(--gold);outline:none}
@media (max-width:820px){.links{display:none}}
.lang{display:flex;border:1px solid var(--line);border-radius:3px;overflow:hidden}
.lang button,.lang a{font:inherit;font-size:.78rem;letter-spacing:.08em;padding:6px 11px;border:0;background:transparent;color:var(--muted);cursor:pointer;text-decoration:none;line-height:1}
.lang button[aria-pressed="true"],.lang a[aria-current="true"]{background:var(--navy);color:#fff}
.lang button:focus-visible,.lang a:focus-visible{outline:2px solid var(--gold);outline-offset:-2px}

/* hero */
.hero{padding-block:72px 64px;border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.85fr);gap:56px;align-items:start}
.hero h1{font-size:clamp(2rem,4.2vw,3.15rem);color:var(--ink)}
.hero h1 em{font-style:italic;color:var(--navy)}
.lede{font-size:1.1rem;color:var(--muted);max-width:60ch;margin-top:22px}
.cta{display:inline-flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.btn{font:inherit;font-size:.9rem;font-weight:500;text-decoration:none;padding:11px 20px;border-radius:3px;border:1px solid var(--navy);color:var(--navy)}
.btn.solid{background:var(--navy);color:#fff}
:root[data-theme="dark"] .btn.solid{color:#0C1330}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .btn.solid{color:#0C1330}}
.btn:hover{border-color:var(--gold)}
.panel{background:var(--panel);color:var(--panel-ink);padding:30px 30px 26px;border-top:4px solid var(--gold)}
.panel .eyebrow{color:var(--gold)}
.panel dl{margin:18px 0 0;display:grid;gap:14px}
.panel dt{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;opacity:.75}
.panel dd{margin:2px 0 0;font-family:var(--display);font-size:1.15rem;line-height:1.3}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr;gap:36px}.hero{padding-block:48px 44px}}

/* sections */
section{padding-block:72px}
@media (max-width:640px){section{padding-block:52px}}
.head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);gap:40px;margin-bottom:44px}
.head h2{font-size:clamp(1.7rem,3vw,2.3rem)}
.head p{color:var(--muted);max-width:62ch;align-self:end}
@media (max-width:820px){.head{grid-template-columns:1fr;gap:16px}}

/* services ledger */
.ledger{border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.6fr);gap:28px;padding-block:28px;border-bottom:1px solid var(--line)}
.row h3{font-size:1.32rem;color:var(--navy)}
.row h3 small{display:block;font-family:var(--body);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);margin-bottom:8px;font-weight:600}
.row p{color:var(--muted);max-width:66ch}
.row p+p{margin-top:10px}
@media (max-width:720px){.row{grid-template-columns:1fr;gap:10px}}

/* research band */
.band{background:var(--band);color:var(--band-ink)}
.band .eyebrow{color:var(--gold)}
.band .head p{color:var(--band-muted)}
.band .grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1px solid var(--band-line);border-left:1px solid var(--band-line)}
.band .cell{padding:26px 24px 30px;border-right:1px solid var(--band-line);border-bottom:1px solid var(--band-line)}
.band .cell h3{font-size:1.2rem;margin-bottom:10px}
.band .cell p{color:var(--band-muted);font-size:.95rem}
@media (max-width:860px){.band .grid{grid-template-columns:1fr}}
.mission{max-width:70ch;font-family:var(--display);font-size:1.25rem;line-height:1.5;margin-top:40px;padding-left:22px;border-left:2px solid var(--gold)}

/* publications */
.pubs{display:grid;gap:0;border-top:1px solid var(--line)}
.pub{display:grid;grid-template-columns:72px minmax(0,1fr);gap:20px;padding-block:22px;border-bottom:1px solid var(--line)}
.pub .year{font-family:var(--display);font-size:1.4rem;color:var(--gold);font-variant-numeric:tabular-nums;line-height:1.2}
.pub .t{font-family:var(--display);font-size:1.15rem;color:var(--ink)}
.pub .s{color:var(--muted);font-size:.92rem;margin-top:4px}
.pub .s i{font-style:italic}
@media (max-width:520px){.pub{grid-template-columns:1fr;gap:4px}}

/* profile */
.profile{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.9fr);gap:56px;align-items:start}
.profile .bio p{color:var(--muted);max-width:64ch}
.profile .bio p+p{margin-top:14px}
.creds{background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--gold);padding:24px 26px}
.creds h3{font-size:1.05rem;margin-bottom:14px}
.creds ul{list-style:none;margin:0;padding:0;display:grid;gap:0}
.creds li{padding-block:10px;border-top:1px solid var(--line);font-size:.93rem;display:grid;grid-template-columns:52px minmax(0,1fr);gap:12px}
.creds li b{font-family:var(--display);font-weight:500;color:var(--gold);font-variant-numeric:tabular-nums}
.creds li:first-child{border-top:0}
@media (max-width:860px){.profile{grid-template-columns:1fr;gap:32px}}

/* offices */
.offices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.office{padding:24px 0 0;border-top:2px solid var(--navy)}
.office h3{font-size:1.5rem;color:var(--navy)}
.office p{color:var(--muted);font-size:.93rem;margin-top:8px}
@media (max-width:720px){.offices{grid-template-columns:1fr}}
.note{margin-top:36px;padding:20px 24px;background:var(--surface);border:1px solid var(--line);color:var(--muted);font-size:.93rem;max-width:72ch}

/* contacts */
.contact{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;margin-bottom:44px}
.contact .box{border:1px solid var(--line);border-top:4px solid var(--gold);background:var(--surface);padding:24px 26px}
.contact .box .eyebrow{color:var(--gold)}
.contact .mail{display:block;font-family:var(--display);font-size:clamp(1.15rem,2.4vw,1.5rem);color:var(--navy);text-decoration:none;margin-top:10px;word-break:break-all}
.contact .mail:hover,.contact .mail:focus-visible{text-decoration:underline;text-decoration-color:var(--gold);outline:none}
.contact .box p.small{color:var(--muted);font-size:.9rem;margin-top:10px}
@media (max-width:720px){.contact{grid-template-columns:1fr}}

/* form */
.formsec{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.form{max-width:880px}
.form fieldset{border:0;padding:0;margin:0 0 40px;min-width:0}
.fs-head{display:flex;gap:14px;align-items:baseline;border-bottom:2px solid var(--navy);padding-bottom:8px;margin-bottom:22px}
.fs-head b{font-family:var(--display);font-weight:500;color:var(--gold);font-size:1.4rem;line-height:1}
.fs-head h3{font-size:1.2rem}
.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 24px}
.field{display:grid;gap:6px;min-width:0}
.field.full{grid-column:1/-1}
.form label{font-size:.8rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);font-weight:500}
.req{color:var(--gold);font-weight:600}
.form input[type="text"],.form input[type="email"],.form input[type="tel"],.form input[type="date"],.form select,.form textarea{font:inherit;font-size:.95rem;line-height:1.4;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:2px;padding:10px 12px;width:100%;min-width:0}
.form textarea{min-height:140px;resize:vertical}
.form :focus-visible{outline:2px solid var(--gold);outline-offset:1px}
.check{display:grid;grid-template-columns:22px minmax(0,1fr);gap:12px;align-items:start;padding:14px 0;border-top:1px solid var(--line);font-size:.93rem;color:var(--ink)}
.checks .check:first-child{border-top:0}
.check input{width:18px;height:18px;margin-top:3px;accent-color:var(--navy)}
.check label{font-size:.93rem;letter-spacing:0;text-transform:none;color:var(--ink);font-weight:400}
.sig{background:var(--bg);border:1px solid var(--line);border-left:4px solid var(--gold);padding:22px 24px}
.sig p{color:var(--muted);font-size:.9rem;margin-bottom:16px;max-width:66ch}
.form .sig .sig-input{font-family:var(--display);font-style:italic;font-size:1.35rem;background:var(--surface)}
.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;align-items:center}
button.btn{cursor:pointer;background:transparent;font-family:var(--body)}
.out{margin-top:28px;border:1px solid var(--line);border-top:4px solid var(--navy);background:var(--bg);padding:22px 24px}
.out h3{font-size:1.1rem;margin-bottom:8px}
.out .msg{font-size:.88rem;color:var(--muted);max-width:70ch}
.out textarea{margin-top:14px;min-height:280px;font-family:ui-monospace,'SF Mono',Menlo,Consolas,monospace;font-size:.8rem;line-height:1.5}
.out .actions{margin-top:16px}
.status{font-size:.85rem;color:var(--muted)}
.privacy{margin-top:36px;border:1px solid var(--line);background:var(--bg)}
.privacy summary{cursor:pointer;padding:14px 20px;font-weight:500;font-size:.92rem;color:var(--navy);list-style:none}
.privacy summary::-webkit-details-marker{display:none}
.privacy summary::before{content:"+ ";color:var(--gold)}
.privacy[open] summary::before{content:"– "}
.privacy .body{padding:0 20px 20px;font-size:.88rem;color:var(--muted);max-width:76ch}
.privacy .body p+p{margin-top:8px}

footer{border-top:1px solid var(--line);padding-block:28px;font-size:.8rem;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
[hidden]{display:none!important}
img{max-width:100%}

/* ---- multipagina ---- */
.contact{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:860px){.contact{grid-template-columns:1fr}}
.contact .tel{display:block;font-family:var(--display);font-size:clamp(1.1rem,2.2vw,1.4rem);color:var(--navy);text-decoration:none;margin-top:10px;font-variant-numeric:tabular-nums}
.ident{margin-top:28px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:.86rem;max-width:80ch}
.ident b{font-weight:500;color:var(--ink)}

/* prose pages */
.prose{max-width:68ch}
.prose h2{font-size:clamp(1.4rem,2.4vw,1.8rem);margin:36px 0 14px}
.prose h3{font-size:1.12rem;margin:28px 0 10px;color:var(--navy)}
.prose p{margin-bottom:16px;color:var(--ink)}
.prose p.small{color:var(--muted);font-size:.92rem}
.prose ol{padding-left:20px;color:var(--muted);font-size:.92rem}
.prose li{margin-bottom:8px}
.prose a{color:var(--navy)}

/* osservatorio */
.posts{border-top:1px solid var(--line)}
.post-row{display:grid;grid-template-columns:minmax(0,.55fr) minmax(0,1.45fr);gap:28px;padding-block:30px;border-bottom:1px solid var(--line)}
.post-row .meta{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--gold);font-weight:600}
.post-row .meta span{display:block;color:var(--muted);letter-spacing:.04em;font-weight:400;margin-top:6px;text-transform:none;font-size:.85rem}
.post-row h3{font-size:1.35rem;margin-bottom:10px}
.post-row h3 a{color:var(--ink);text-decoration:none;border-bottom:2px solid transparent}
.post-row h3 a:hover,.post-row h3 a:focus-visible{border-color:var(--gold);outline:none}
.post-row p{color:var(--muted)}
.more{display:inline-block;margin-top:12px;font-size:.86rem;font-weight:500;color:var(--navy);text-decoration:none;border-bottom:1px solid var(--gold);padding-bottom:2px}
@media (max-width:720px){.post-row{grid-template-columns:1fr;gap:10px}}

/* articolo */
.article-head{border-bottom:1px solid var(--line);padding-bottom:30px;margin-bottom:36px}
.article-head h1{font-size:clamp(1.8rem,3.6vw,2.7rem);margin-top:14px}
.byline{margin-top:18px;color:var(--muted);font-size:.9rem}
.abstract{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--gold);padding:22px 24px;margin:34px 0;max-width:72ch}
.abstract h3{margin-top:0;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);font-family:var(--body);font-weight:600}
.abstract p{color:var(--muted);font-size:.94rem;margin-bottom:0;margin-top:10px}
.refs{margin-top:44px;padding-top:24px;border-top:1px solid var(--line)}
.refs h3{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);font-family:var(--body);font-weight:600;margin-bottom:14px}
.backlink{display:inline-block;margin-top:36px;font-size:.9rem;color:var(--navy);text-decoration:none;border-bottom:1px solid var(--gold);padding-bottom:2px}

/* esiti */
.esito{max-width:70ch;padding-block:20px}
.esito .badge{display:inline-block;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;font-weight:600;padding:6px 12px;border-radius:2px;background:var(--navy);color:#fff}
:root[data-theme="dark"] .esito .badge{color:#0C1330}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .esito .badge{color:#0C1330}}
.esito .badge.err{background:var(--gold);color:#171B2E}
.esito h1{font-size:clamp(1.7rem,3vw,2.4rem);margin:18px 0 16px}
.esito p{color:var(--muted);margin-bottom:14px}
.esito pre{white-space:pre-wrap;background:var(--surface);border:1px solid var(--line);padding:18px;font-size:.82rem;overflow-x:auto;color:var(--ink)}