:root{
  --brand:#2e8b26;--brand-ink:#fff;--site:#3fad35;--accent:#444;--green:#3fad35;
  --bg:#f6f8f5;--panel:#fff;--ink:#1c2230;--muted:#5b6475;--line:#dfe3ea;--soft:#eaf3e8;
  --note-bg:#eef8ec;--note-bd:#3fad35;--warn-bg:#fff4e0;--warn-bd:#e07b00;
  --code-bg:#0f1729;--code-ink:#dbe7ff;--code-cm:#7f93b8;
  --radius:12px;--sbw:292px;--hh:60px;
  --shadow:0 1px 2px rgba(20,30,60,.06),0 8px 24px rgba(20,30,60,.06);
}
:root[data-theme=dark]{
  --brand:#6fd163;--brand-ink:#0c1a0b;--site:#3fad35;--accent:#ffb347;
  --bg:#0f1a10;--panel:#172418;--ink:#e8ecf7;--muted:#9aa5bf;--line:#2a3d2c;--soft:#1f3322;
  --note-bg:#16301a;--note-bd:#6fd163;--warn-bg:#3a2a10;--warn-bd:#ffb347;
  --code-bg:#0a0e1b;--code-ink:#cfe0ff;--code-cm:#6d7fa3;--shadow:none;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme=light]){
    --brand:#6fd163;--brand-ink:#0c1a0b;--site:#3fad35;--accent:#ffb347;
    --bg:#0f1a10;--panel:#172418;--ink:#e8ecf7;--muted:#9aa5bf;--line:#2a3d2c;--soft:#1f3322;
    --note-bg:#16301a;--note-bd:#6fd163;--warn-bg:#3a2a10;--warn-bd:#ffb347;
    --code-bg:#0a0e1b;--code-ink:#cfe0ff;--code-cm:#6d7fa3;--shadow:none;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--hh) + 16px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--brand)}
img{max-width:100%;height:auto}
.skip{position:absolute;left:-999px;top:0;background:var(--brand);color:var(--brand-ink);padding:8px 14px;z-index:100}
.skip:focus{left:8px;top:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

/* header */
.top{position:sticky;top:0;z-index:30;height:var(--hh);display:flex;align-items:center;gap:10px;padding:0 16px;background:var(--panel);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);margin-right:auto;min-width:0}
.brand img{display:block;height:30px;width:auto}
.brand span{display:flex;flex-direction:column;line-height:1.15;font-size:15px;white-space:nowrap}
.brand em{font-style:normal;color:var(--muted);font-size:12.5px}
.icon-btn{background:none;border:0;color:var(--ink);width:40px;height:40px;border-radius:10px;display:grid;place-items:center;cursor:pointer;font-size:18px}
.icon-btn:hover{background:var(--soft)}
#menuBtn{display:none}
.search-btn{display:flex;align-items:center;gap:10px;min-width:260px;padding:8px 12px;border:1px solid var(--line);background:var(--bg);border-radius:10px;color:var(--muted);cursor:pointer;font:inherit;font-size:14.5px}
.search-btn:hover{border-color:var(--brand)}
.search-btn span{flex:1;text-align:left}
kbd{font:12px ui-monospace,Consolas,monospace;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:1px 6px;background:var(--panel);color:var(--ink)}

/* layout */
.shell{display:grid;grid-template-columns:var(--sbw) minmax(0,1fr);min-height:calc(100vh - var(--hh))}
#sidebar{position:sticky;top:var(--hh);height:calc(100vh - var(--hh));overflow:auto;padding:18px 10px 40px 14px;border-right:1px solid var(--line);background:var(--panel)}
.toc,.toc ul{list-style:none;margin:0;padding:0}
.toc a,.grp-btn{display:block;width:100%;text-align:left;padding:7px 12px;border-radius:8px;text-decoration:none;color:var(--ink);font-size:15px;line-height:1.35}
.toc a:hover,.grp-btn:hover{background:var(--soft)}
.toc a.on{background:var(--brand);color:var(--brand-ink);font-weight:600}
.grp-btn{background:none;border:0;font:inherit;font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);cursor:pointer;margin-top:14px;display:flex;justify-content:space-between;align-items:center}
.grp-btn::after{content:"";width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);transition:.15s;margin-right:4px}
.grp-btn[aria-expanded=false]::after{transform:rotate(-45deg)}
.grp-btn[aria-expanded=false]+ul{display:none}
.toc .grp ul{margin-left:8px;border-left:2px solid var(--line);padding-left:6px}
.toc .grp .grp .grp-btn{text-transform:none;letter-spacing:0;font-size:15px;font-weight:600;color:var(--ink);margin-top:2px}
.scrim{display:none}

main{padding:28px clamp(16px,4vw,56px) 40px;max-width:1180px;width:100%;outline:none}

/* pagina */
.page{display:grid;grid-template-columns:minmax(0,1fr) 220px;column-gap:40px;align-items:start}
.page[hidden],.home[hidden]{display:none}
.page>h1,.page>.crumbs,.page>.prose,.page>.pager{grid-column:1}
.page>.onpage{grid-column:2;grid-row:1 / span 4}
.crumbs{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px}
.page h1{font-size:clamp(28px,4vw,40px);line-height:1.15;margin:0 0 18px;letter-spacing:-.01em}
.onpage{position:sticky;top:calc(var(--hh) + 22px);font-size:14px;max-height:calc(100vh - var(--hh) - 44px);overflow:auto;border-left:2px solid var(--line);padding-left:14px}
.onpage:not(:has(li)){display:none}
.onpage b{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:6px}
.onpage ul{list-style:none;margin:0;padding:0}
.onpage a{display:block;padding:3px 0;color:var(--muted);text-decoration:none;line-height:1.35}
.onpage li.l3 a{padding-left:12px}.onpage li.l4 a{padding-left:24px;font-size:13px}
.onpage a:hover,.onpage a.on{color:var(--brand)}
.onpage a.on{font-weight:600}

.prose{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(18px,3vw,40px);box-shadow:var(--shadow)}
.prose>*:first-child{margin-top:0}
.prose h2{font-size:26px;margin:2em 0 .5em;line-height:1.25;padding-top:.3em}
.prose h3{font-size:21px;margin:1.8em 0 .4em;line-height:1.3}
.prose h4{font-size:17px;margin:1.6em 0 .3em;color:var(--brand)}
.prose h2:first-child{margin-top:0}
.prose h2,.prose h3,.prose h4{position:relative;scroll-margin-top:calc(var(--hh) + 16px)}
.anchor{opacity:0;margin-left:8px;text-decoration:none;font-weight:400;color:var(--muted)}
h2:hover .anchor,h3:hover .anchor,h4:hover .anchor,.anchor:focus{opacity:1}
.prose p{margin:.8em 0;hyphens:auto}
.prose ul,.prose ol{padding-left:1.4em;margin:.8em 0}
.prose li{margin:.45em 0}
.prose li>p{margin:.3em 0}
.prose strong{font-weight:650}
.prose li::marker{color:var(--brand);font-weight:700}
.prose ol>li::marker{color:var(--brand)}
sup.fnref a{text-decoration:none;font-weight:700;padding:0 2px}
.footnotes{margin-top:2.5em;border-top:1px solid var(--line);font-size:14.5px;color:var(--muted)}
.footnotes h2{font-size:15px!important;text-transform:uppercase;letter-spacing:.06em;margin:1em 0 .3em}
.footnotes .back{text-decoration:none;margin-left:4px}

figure{margin:1.6em auto;text-align:center}
figure img{border-radius:10px;border:1px solid var(--line);background:#fff;cursor:zoom-in;max-height:620px;object-fit:contain}
figure.big img{max-height:none;width:100%;max-width:760px;padding:8px}
figcaption{font-size:14.5px;color:var(--muted);margin-top:8px;max-width:760px;margin-inline:auto}
figure.inlinesvg{background:var(--soft);border-radius:var(--radius);padding:16px}
svg.state{max-width:620px;width:100%;height:auto;color:var(--ink)}
.state .st-circle circle{fill:var(--panel);stroke:var(--ink);stroke-width:1.8}
.state .st-text{font:12px system-ui,sans-serif;fill:var(--ink)}
.state .st-text .b{font-weight:700;font-size:13px}
.state .lbl text{font-weight:700;font-size:13px}

.callout{margin:1.2em 0;padding:14px 18px;border-left:5px solid var(--note-bd);background:var(--note-bg);border-radius:0 10px 10px 0}
.callout.warn{border-color:var(--warn-bd);background:var(--warn-bg)}
.callout.warn strong:first-child,.callout.warn::first-line{font-weight:700}
.menupath{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:.5em 0 1em!important}
.menupath kbd{font-size:14px;padding:3px 10px;background:var(--soft);border-color:var(--line);color:var(--ink);font-weight:600}
.menupath i{font-style:normal;color:var(--muted)}
pre.code{background:var(--code-bg);color:var(--code-ink);padding:16px 18px;border-radius:10px;overflow:auto;font:14px/1.7 ui-monospace,Consolas,"Cascadia Mono",monospace;margin:1em 0;white-space:pre}
pre.code .cm{color:var(--code-cm)}
.tablewrap{overflow:auto;margin:1.4em 0;border:1px solid var(--line);border-radius:10px}
table{border-collapse:collapse;width:100%;font-size:15.5px}
th,td{padding:10px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
td+td,th+th{border-left:1px solid var(--line)}
tr:last-child td{border-bottom:0}
th{background:var(--soft);font-weight:650}
th.band{background:var(--brand);color:var(--brand-ink);text-align:center;letter-spacing:.03em}
table.symbols td.ico{width:74px;text-align:center;background:#fff}
table.symbols td.ico img{display:block;margin:auto;height:34px;width:auto;border:0;border-radius:0;cursor:default}
table.symbols td{vertical-align:middle}
:root[data-theme=dark] table.symbols td.ico{background:#fff}

/* schema finestra DAMeterConverter */
svg.win{max-width:780px;width:100%;min-width:640px;height:auto;color:var(--ink)}
figure.inlinesvg{overflow-x:auto}
.win .w-frame{fill:var(--panel);stroke:var(--muted);stroke-width:1.5}
.win .w-title{fill:var(--soft)}
.win .w-tt{font:600 13px system-ui,sans-serif;fill:var(--ink)}
.win .w-btn rect{fill:var(--soft);stroke:var(--muted);stroke-width:1}
.win .w-t{font:12px system-ui,sans-serif;fill:var(--ink)}
.win .w-t .b,.win .b{font-weight:700}
.win .w-mut{fill:var(--muted)}
.win .w-chk{fill:var(--panel);stroke:var(--muted);stroke-width:1.2}
.win .w-tick{fill:none;stroke:var(--brand);stroke-width:2}
.win .w-grid rect{fill:var(--panel);stroke:var(--muted)}
.win .w-grid .w-head{fill:var(--soft)}
.win .w-grid path{stroke:var(--line);fill:none}
.win .w-status{fill:var(--soft)}
.win .w-n circle{fill:var(--brand)}
.win .w-n text{fill:var(--brand-ink);font:700 11px system-ui,sans-serif}
ol.legend{columns:2 340px;column-gap:32px}
ol.legend li{break-inside:avoid}
.prose code{font:0.9em ui-monospace,Consolas,monospace;background:var(--soft);padding:1px 6px;border-radius:5px}

/* elenco tasti numerati */
ul.keys{list-style:none;padding:0;counter-reset:k;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:8px 24px}
ul.keys>li{counter-increment:k;display:flex;gap:10px;align-items:flex-start;margin:0}
ul.keys>li::before{content:counter(k);flex:none;width:26px;height:26px;border-radius:50%;background:var(--brand);color:var(--brand-ink);font-size:13px;font-weight:700;display:grid;place-items:center;margin-top:2px}
ul.keys>li:nth-child(n+7)::before{background:var(--muted)}

.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
.pager a{display:block;padding:14px 18px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);text-decoration:none;color:var(--ink);font-weight:600}
.pager a:hover{border-color:var(--brand)}
.pager small{display:block;color:var(--muted);font-weight:400;font-size:12.5px;text-transform:uppercase;letter-spacing:.05em}
.pager .next{text-align:right;grid-column:2}
.pager .prev{grid-column:1}

/* home */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center;background:linear-gradient(135deg,#f0f9ee,#d3eecd 55%,#a9dca1);color:#16301a;border-top:6px solid var(--site);border-radius:20px;padding:clamp(22px,4vw,48px);overflow:hidden}
:root[data-theme=dark] .hero{background:linear-gradient(135deg,#17301a,#1f4423 60%,#2a5a2e);color:#fff}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .hero{background:linear-gradient(135deg,#17301a,#1f4423 60%,#2a5a2e);color:#fff}}
.hero h1{white-space:nowrap;font-size:clamp(38px,5vw,60px);line-height:1;margin:.1em 0 .2em;letter-spacing:-.02em}
.hero img{width:100%;max-height:360px;object-fit:contain;filter:drop-shadow(0 18px 24px rgba(0,0,0,.25))}
.eyebrow{text-transform:uppercase;letter-spacing:.09em;font-size:13px;font-weight:700;opacity:.8;margin:0}
.lead{font-size:19px;max-width:34em}
.btn{display:inline-block;background:var(--brand);color:var(--brand-ink);border:2px solid var(--brand);padding:11px 20px;border-radius:10px;font:inherit;font-weight:650;text-decoration:none;cursor:pointer;margin:4px 6px 4px 0}
.btn.ghost{background:transparent;color:inherit;border-color:currentColor}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin:26px 0}
.card{display:block;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;text-decoration:none;color:var(--ink);transition:.15s;box-shadow:var(--shadow)}
.card:hover{transform:translateY(-2px);border-color:var(--brand)}
.card b{display:block;font-size:18px;margin-bottom:4px;color:var(--brand)}
.card span{color:var(--muted);font-size:15px;line-height:1.45}
.notice{background:var(--soft);border-radius:var(--radius);padding:14px 18px}
.foot{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);font-size:13.5px;color:var(--muted)}
.foot a{color:inherit}

/* dialogs */
dialog{border:0;padding:0;border-radius:16px;background:var(--panel);color:var(--ink);box-shadow:0 20px 60px rgba(0,0,0,.35)}
dialog::backdrop{background:rgba(10,15,30,.55);backdrop-filter:blur(2px)}
#searchDlg{width:min(680px,94vw);margin:10vh auto auto;max-height:78vh}
#searchDlg[open]{display:flex;flex-direction:column}
.sform{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line);margin:0}
.sform input{flex:1;border:0;background:none;color:inherit;font:inherit;font-size:18px;padding:8px 2px;outline:none}
#results{overflow:auto;padding:8px}
#results a{display:block;padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--ink)}
#results a.sel,#results a:hover{background:var(--soft)}
#results b{display:block;font-size:15.5px}
#results small{color:var(--muted);font-size:12.5px;text-transform:uppercase;letter-spacing:.04em}
#results p{margin:2px 0 0;font-size:14.5px;color:var(--muted);line-height:1.45}
mark{background:#ffe27a;color:#222;border-radius:3px;padding:0 1px}
.empty{padding:22px;text-align:center;color:var(--muted)}
.hint{margin:0;padding:8px 14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}
#lightbox{width:96vw;height:94vh;max-width:none;max-height:none;margin:auto;background:var(--bg)}
#lightbox[open]{display:flex;flex-direction:column}
.lb-bar{display:flex;gap:6px;align-items:center;padding:8px 12px;border-bottom:1px solid var(--line);background:var(--panel)}
.lb-bar span{flex:1;font-size:14px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lb-stage{flex:1;overflow:auto;display:grid;place-items:start center;padding:12px;background:#fff}
.lb-stage img{display:block;background:#fff;max-width:none}

/* embed (iframe nel sito) */
.embed .top{display:none}
.embed{--hh:0px}
.embed #sidebar{top:0;height:100vh}

/* responsive */
@media (max-width:1100px){.page{grid-template-columns:minmax(0,1fr)}.page>.onpage{display:none}}
@media (max-width:900px){
  .shell{display:block}
  #menuBtn{display:grid}
  .search-btn{min-width:0}.search-btn span,.search-btn kbd{display:none}.search-btn{padding:9px;margin-left:auto}
  .brand{margin-right:0}
  #sidebar{position:fixed;z-index:40;left:0;top:0;height:100%;width:min(86vw,330px);transform:translateX(-102%);transition:transform .2s;padding-top:20px}
  body.nav-open #sidebar{transform:none;box-shadow:0 0 40px rgba(0,0,0,.4)}
  body.nav-open .scrim{display:block;position:fixed;inset:0;background:rgba(10,15,30,.5);z-index:35}
  .hero{grid-template-columns:1fr}
  body{font-size:16.5px}
  .brand span em{display:none}
  .brand{overflow:hidden}.brand span{overflow:hidden;text-overflow:ellipsis}
  main{padding:16px 12px 32px}.prose{padding:18px 16px}
  .pager{grid-template-columns:1fr}.pager .next,.pager .prev{grid-column:1;text-align:left}
}

/* stampa: tutto il manuale in sequenza */
@media print{
  :root{--bg:#fff;--panel:#fff;--ink:#000;--line:#bbb;--soft:#eee}
  body{font-size:11pt;background:#fff}
  .top,#sidebar,.scrim,.onpage,.pager,.anchor,.hero,.cards,.notice,dialog{display:none!important}
  .shell{display:block}
  main{padding:0;max-width:none}
  .home{display:none!important}
  .page[hidden]{display:block!important}
  .page{display:block;break-before:page}
  .page:first-of-type{break-before:auto}
  .prose{border:0;box-shadow:none;padding:0}
  figure,.tablewrap,pre,.callout{break-inside:avoid}
  figure img{cursor:auto;max-height:420px}
  a{color:inherit;text-decoration:none}
}

/* richiamo del sito dameter.com: barra verde in testata */
header.top{border-top:4px solid var(--site)}
.sitelinks{display:flex;flex-wrap:wrap;gap:6px 22px;margin:14px 0 0;font-size:15px;font-weight:600}
.sitelinks a{color:inherit;text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--site)}
.sitelinks a:hover{text-decoration-thickness:2px}
/* selettore di lingua: menu a tendina con bandierina */
.langmenu{position:relative;margin-right:4px}
.langmenu summary{display:flex;align-items:center;gap:7px;padding:7px 10px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font-size:13.5px;font-weight:650;letter-spacing:.03em;cursor:pointer;list-style:none;user-select:none}
.langmenu summary::-webkit-details-marker{display:none}
.langmenu summary:hover,.langmenu[open] summary{border-color:var(--brand)}
.langmenu .flag{display:block;border-radius:2px;box-shadow:0 0 0 1px rgba(0,0,0,.18)}
.langmenu summary svg:last-child{opacity:.7;transition:transform .15s}
.langmenu[open] summary svg:last-child{transform:rotate(180deg)}
.langmenu ul{position:absolute;right:0;top:calc(100% + 6px);z-index:40;min-width:150px;margin:0;padding:6px;list-style:none;background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow),0 10px 30px rgba(0,0,0,.18)}
.langmenu li a{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;color:var(--ink);text-decoration:none;font-size:14.5px}
.langmenu li a:hover{background:var(--soft)}
.langmenu li a[aria-current]{background:var(--brand);color:var(--brand-ink);font-weight:650}
@media print{.langmenu{display:none}}