:root{
  --bg:#F3F5F7; --surface:#FFFFFF; --sunken:#EAEEF2; --ink:#16202B; --muted:#4D5B69; --line:#D6DDE4;
  --accent:#1D4E89; --accent-ink:#FFFFFF; --accent-soft:#E3EDF9;
  --side:#16202B; --side-2:#223142; --side-ink:#FFFFFF; --side-muted:#A9B6C4;
  --ok-bg:#E1F2E7; --ok-fg:#1A5E33; --warn-bg:#FFF1DC; --warn-fg:#7A4100; --err-bg:#FDECEC; --err-fg:#A3261F;
  --doc-bg:#F1E8FA; --doc-fg:#5B2E86;
  --b-bg:#E1F2E7; --b-fg:#1A5E33; --i-bg:#E3EDF9; --i-fg:#17426F; --a-bg:#F1E8FA; --a-fg:#5B2E86;
  --f:'Instrument Sans','Segoe UI',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font-family:var(--f);font-size:15px;line-height:1.5}
a{color:var(--accent)}
h1,h2,h3{margin:0;line-height:1.2;text-wrap:balance}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.muted{color:var(--muted)} .small{font-size:13px}
code{font-family:ui-monospace,Menlo,Consolas,monospace;background:var(--sunken);padding:1px 6px;border-radius:5px}
code.pw{font-size:17px;font-weight:700;letter-spacing:.04em;background:#fff;border:1px solid var(--line);user-select:all}

/* bottoni */
.btn{min-height:42px;padding:0 16px;border-radius:8px;border:1px solid var(--line);background:var(--surface);font-weight:600;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;color:var(--ink);white-space:nowrap}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn.small{min-height:34px;padding:0 12px;font-size:13.5px}
.btn.danger{color:var(--err-fg)} .btn.danger:hover{border-color:var(--err-fg)}
.btn.wide{width:100%}
.btn.ghost{background:transparent;color:var(--side-ink);border-color:var(--side-2)}

/* messaggi */
.msg{border-radius:10px;padding:12px 14px;font-size:14px}
.msg.ok{background:var(--ok-bg);color:var(--ok-fg)} .msg.err{background:var(--err-bg);color:var(--err-fg)} .msg.warn{background:var(--warn-bg);color:var(--warn-fg)}
.msg.big{font-size:15px;line-height:1.8}

/* login */
.auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px 16px;background:var(--side)}
.auth-card{width:100%;max-width:420px;background:var(--surface);border-radius:16px;padding:32px 28px;display:flex;flex-direction:column;gap:14px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.auth-logo{display:flex;justify-content:center;margin-bottom:6px} .auth-logo img{height:84px}
.auth h1{font-size:26px} .auth .lead{margin:0;color:var(--muted)}
.auth-foot{font-size:12px;color:var(--muted);text-align:center;margin:8px 0 0}

/* form */
.form{display:flex;flex-direction:column;gap:14px}
.form label{display:flex;flex-direction:column;gap:6px;font-size:13.5px;font-weight:600;color:var(--muted)}
.form input[type=email],.form input[type=password],.form input[type=text],.form input:not([type]),.form select{min-height:44px;border:1px solid var(--line);border-radius:8px;padding:0 12px;background:#fff;color:var(--ink);font-weight:400;font-size:15px;width:100%}
.form label.check{flex-direction:row;align-items:center;gap:8px;font-weight:500;color:var(--ink)}
.form label.check input{width:18px;height:18px;accent-color:var(--accent)}
.form label.strong{font-weight:700}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 18px}
.grid2 .span2{grid-column:1/-1}
fieldset{border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin:0;display:flex;flex-direction:column;gap:10px}
legend{font-weight:700;padding:0 6px}
.cgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:8px 16px}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.danger-zone{display:flex;flex-wrap:wrap;gap:12px;align-items:center;border-top:1px solid var(--line);margin-top:18px;padding-top:16px}
.danger-zone form{display:flex;gap:10px;align-items:center}
.danger-zone label.check{display:flex;gap:6px;align-items:center;font-size:13.5px}

/* struttura */
.shell{min-height:100vh;display:flex}
.side{width:300px;flex:none;background:var(--side);color:var(--side-ink);padding:26px 18px;display:flex;flex-direction:column;gap:14px;position:sticky;top:0;height:100vh;overflow-y:auto}
.brand{display:flex;flex-direction:column;gap:8px;align-items:stretch}
.logotile{background:#fff;border-radius:12px;padding:10px 14px;display:flex;justify-content:center}
.logotile img{max-height:84px;max-width:100%}
.pluritile{background:#2D3856} .pluritile img{max-height:46px}
.brand .x{color:var(--side-muted);text-align:center;font-size:12px;letter-spacing:.12em;text-transform:uppercase}
.nav{display:flex;flex-direction:column;gap:2px;margin-top:4px}
.nav a{color:var(--side-ink);text-decoration:none;padding:9px 12px;border-radius:8px;font-weight:600;font-size:14.5px}
.nav a:hover{background:var(--side-2)} .nav a[aria-current="page"]{background:#fff;color:var(--side)}
.side-h{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--side-muted);font-weight:600;margin-top:8px}
.clist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.citem{display:flex;flex-direction:column;padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--side-ink)}
.citem .t{font-weight:600;font-size:14px;line-height:1.3} .citem .m{font-size:12.5px;color:var(--side-muted)}
.citem:hover{background:var(--side-2)} .citem[aria-current="true"]{background:#fff;color:var(--side)} .citem[aria-current="true"] .m{color:var(--muted)}
.empty-side{color:var(--side-muted);font-size:13px;padding:6px 12px}
.who{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--side-2);border-radius:10px;padding:12px}
.who b{display:block;font-size:14px} .who span{font-size:12px;color:var(--side-muted)}
.content{flex:1;min-width:0;padding:28px clamp(16px,4vw,48px) 48px;display:flex;flex-direction:column;gap:20px}
.content > *{max-width:1120px;width:100%;margin-inline:auto}
.mtop{display:none}
.foot{font-size:12.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin-top:auto}

/* testate */
.top{display:flex;flex-wrap:wrap;gap:18px;align-items:flex-end;justify-content:space-between}
.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600}
.top h1{font-size:clamp(26px,3.4vw,34px);margin-top:4px}
.top p{margin:8px 0 0;color:var(--muted);max-width:62ch}
.meter{display:grid;grid-template-columns:repeat(3,minmax(84px,1fr));gap:10px}
.meter div{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 14px;font-size:13px;color:var(--muted)}
.meter b{display:block;font-size:24px;color:var(--ink);font-variant-numeric:tabular-nums}
.meter div:first-child b{color:var(--accent)}

/* catalogo */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.ccard{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;text-decoration:none;color:var(--ink);display:flex;flex-direction:column;transition:border-color .15s, transform .15s}
.ccard:hover{border-color:var(--accent);transform:translateY(-2px)}
.ccard img{width:100%;aspect-ratio:2/1;object-fit:cover;display:block}
.ccard .cb{padding:16px 18px 18px;display:flex;flex-direction:column;gap:6px;flex:1}
.ccard .m{font-size:12.5px;color:var(--muted);font-weight:600}
.ccard h2{font-size:19px}
.ccard p{margin:0;color:var(--muted);font-size:14px}
.facts{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:8px}
.facts span{background:var(--sunken);border-radius:999px;padding:3px 10px;font-size:12.5px;color:var(--muted)}
.facts.big span{font-size:14px;padding:5px 12px} .facts.big b{color:var(--ink)}

/* scheda corso */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px}
.panel.narrow{max-width:560px}
.panel h2{font-size:20px;margin-bottom:12px}
.course{display:flex;flex-direction:column;gap:16px}
.chead{display:flex;gap:20px;align-items:flex-start;justify-content:space-between}
.chead h1{font-size:clamp(24px,3vw,30px);margin-top:4px}
.chead .desc{margin:8px 0 0;color:var(--muted);max-width:60ch;font-size:15.5px}
.cimg{width:260px;border-radius:10px;flex:none}
.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.two h3{font-size:14px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.two ul{margin:8px 0 0;padding-left:18px} .two li{margin:3px 0}
.lvls{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px}
.lvl{border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.lvh{display:flex;align-items:center;justify-content:space-between}
.foc{font-weight:600;margin-top:6px} .tgt{font-size:13.5px;color:var(--muted)}
.chip{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}
.lv-Base{background:var(--b-bg);color:var(--b-fg)} .lv-Intermedio{background:var(--i-bg);color:var(--i-fg)} .lv-Avanzato{background:var(--a-bg);color:var(--a-fg)}
.chip.k{background:var(--sunken);color:var(--muted)} .chip.a-docente{background:var(--doc-bg);color:var(--doc-fg)}
.chip.hid{background:transparent;border:1px dashed currentColor;color:var(--muted)} .side .chip.hid{color:var(--side-muted)}
.chip.ok{background:var(--ok-bg);color:var(--ok-fg)}
.chip.r-admin{background:var(--side);color:#fff} .chip.r-docente{background:var(--doc-bg);color:var(--doc-fg)} .chip.r-cliente{background:var(--i-bg);color:var(--i-fg)}

.toolbar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-bottom:8px}
.toolbar h2{margin:0}
.seg{display:flex;flex-wrap:wrap;gap:6px}
.tab{min-height:38px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-weight:600;cursor:pointer;font-size:14px}
.tab[aria-selected="true"]{background:var(--accent);color:#fff;border-color:var(--accent)}
.mod{margin-top:16px} .mod h3{font-size:15px;padding-bottom:6px;border-bottom:1px solid var(--line)}
.flist{list-style:none;margin:0;padding:0}
.frow{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--sunken)}
.fi{display:flex;flex-direction:column;gap:4px;min-width:0;flex:1 1 260px}
.fn{font-weight:600;font-size:14.5px;overflow-wrap:anywhere}
.fm{display:flex;gap:6px;flex-wrap:wrap}
.fa{display:flex;gap:8px;flex-wrap:wrap}

/* tabelle admin */
.tw{overflow-x:auto}
table.ut{width:100%;border-collapse:collapse;font-size:14px;min-width:760px}
.ut th,.ut td{text-align:left;padding:10px;border-bottom:1px solid var(--line);vertical-align:top}
.ut th{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.ut tr.off td{opacity:.6}

/* telefono */
@media (max-width:900px){
  .shell{display:block}
  .side{position:fixed;inset:0 auto 0 0;width:min(320px,86vw);z-index:20;transform:translateX(-105%);transition:transform .2s;box-shadow:0 0 40px rgba(0,0,0,.35)}
  .side.open{transform:none}
  .mtop{display:flex;align-items:center;justify-content:space-between;margin-bottom:-4px}
  .mlogo img{height:46px}
  .content{padding:16px 16px 40px}
  .chead{flex-direction:column} .cimg{width:100%}
  .two,.grid2{grid-template-columns:1fr}
  .meter{width:100%}
}
.auth-links{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.chip.r-ente,.chip.r-cliente{background:var(--i-bg);color:var(--i-fg)} .chip.r-studente{background:var(--b-bg);color:var(--b-fg)}
.chip.lv-Standard{background:#FFF1DC;color:#7A4100}
.chip.a-aud{background:var(--sunken);color:var(--ink);font-weight:500}
/* prezzi, caricamenti, condivisione */
.prices{gap:10px}
.prow{display:grid;grid-template-columns:200px 160px minmax(0,1fr);gap:12px;align-items:end;padding:10px 0;border-bottom:1px solid var(--sunken)}
.prow > b{align-self:center}
.fset{position:relative}
.fset > summary{list-style:none} .fset > summary::-webkit-details-marker{display:none}
.fset[open] > summary{border-color:var(--accent);color:var(--accent)}
.fpop{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center;margin-top:8px;padding:10px 12px;background:var(--sunken);border-radius:8px}
.fpop label.check{display:flex;gap:6px;align-items:center;font-size:13.5px}
.audset{flex-direction:row;flex-wrap:wrap;gap:8px 18px}
ul.mods{margin:8px 0 0;padding-left:18px;font-size:13.5px;color:var(--muted)}
textarea{font:inherit;color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:10px 12px;background:#fff;width:100%;min-height:90px;resize:vertical}
.form input[type=number],.form input[type=date],.form input[type=file]{min-height:44px;border:1px solid var(--line);border-radius:8px;padding:8px 12px;background:#fff;color:var(--ink);font-weight:400;font-size:15px;width:100%}
@media (max-width:900px){.prow{grid-template-columns:1fr}}
.ltype{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:14px}
.form .ltype label.card{border:1px solid var(--line);border-radius:10px;padding:12px 14px;align-items:flex-start;cursor:pointer}
.form .ltype label.card:has(input:checked){border-color:var(--accent);background:var(--accent-soft)}
.lvedit{display:flex;flex-direction:column;gap:12px}
.lvedit legend label{display:flex;gap:8px;align-items:center}
section.panel.grid2{display:grid}
@media (max-width:900px){.ltype{grid-template-columns:1fr}}
a.tab{display:inline-flex;align-items:center;text-decoration:none;color:var(--ink)}
.rowact{display:flex;gap:6px;flex-wrap:wrap}
.qmeter{grid-template-columns:repeat(3,minmax(0,1fr))}
/* preventivo */
.qrows{display:flex;flex-direction:column;gap:10px;margin:8px 0 12px}
.qrow{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1.2fr) minmax(0,1.3fr) 90px 130px 120px auto;gap:10px;align-items:end;padding:12px;border:1px solid var(--line);border-radius:10px;background:#FBFCFD}
.qrow .wide{grid-column:1/6;grid-row:2}
.qrow label{min-width:0}
.rtot{display:flex;flex-direction:column;align-items:flex-end;justify-content:center;min-height:44px}
.rtot b{font-variant-numeric:tabular-nums}
.qsum{display:grid;grid-template-columns:120px minmax(0,1fr) auto;gap:12px 18px;align-items:end;border-top:1px solid var(--line);padding-top:14px;margin-top:14px}
.tots{grid-column:1/-1;justify-self:end;border-collapse:collapse;min-width:300px;font-variant-numeric:tabular-nums}
.tots td{padding:4px 0 4px 24px;text-align:right} .tots td:first-child{text-align:left;padding-left:0;color:var(--muted)}
.tots tr.t td{font-size:19px;font-weight:700;color:var(--ink);border-top:2px solid var(--ink);padding-top:8px}
.invoice pre{white-space:pre-wrap;background:var(--sunken);border-radius:8px;padding:14px;font-size:14px;margin:8px 0;font-family:ui-monospace,Menlo,Consolas,monospace}
@media (max-width:1100px){.qrow{grid-template-columns:repeat(2,minmax(0,1fr))}.qrow .wide{grid-column:1/-1;grid-row:auto}.qsum{grid-template-columns:1fr}.tots{justify-self:stretch}}