/* Calcolatori del Lab: stile comune, allineato alla "tavola tecnica" del sito.
   Fondo bianco, inchiostro, carminio; Nunito Sans dal dominio, nessuna risorsa esterna.
   I nomi delle variabili storiche (--text-muted, --border-card, --primary...) restano
   perché alcune pagine li usano ancora negli stili in linea: cambiano solo i valori. */

@font-face{font-family:'Nunito Sans';src:url('/vendor/nunito-sans-latin-standard.woff2') format('woff2');
  font-weight:200 1000;font-stretch:75% 125%;font-style:normal;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}

:root{
  --paper:#FFFFFF;
  --ink:#1C1C1A;
  --ink-2:#45443E;
  --ink-3:#6F6E67;          /* testo piccolo: 5,1:1 sul bianco */
  --muted:#8B8A82;          /* solo linee e decori, mai testo */
  --line:#D9D7CC;
  --carmine:#9D0620;
  --carmine-pale:rgb(235,190,195);
  --carmine-deep:rgb(55,3,10);
  --carmine-wash:#FBF3F4;
  --pad:clamp(16px,4vw,48px);

  /* nomi storici, nuovi valori */
  --font-main:'Nunito Sans',system-ui,-apple-system,"Segoe UI",sans-serif;
  --bg-card:var(--paper);
  --border-card:var(--line);
  --text-main:var(--ink);
  --text-muted:var(--ink-3);
  --primary:var(--carmine);
  --primary-hover:var(--carmine);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--paper);color:var(--ink);
  font-family:var(--font-main);font-size:16px;line-height:1.55;
  font-variant-numeric:tabular-nums lining-nums;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
:focus-visible{outline:2px solid var(--carmine);outline-offset:3px}
.tech{font-stretch:75%;font-weight:650;letter-spacing:.02em}

/* ---------- la tavola ---------- */
.sheet{
  position:relative;margin:14px;min-height:calc(100vh - 28px);
  border:1.5px solid var(--ink);
  box-shadow:inset 0 0 0 9px var(--paper), inset 0 0 0 10px var(--line);
  display:flex;flex-direction:column;
}
.sheet::before,.sheet::after{
  content:"";position:absolute;left:50%;width:0;height:0;transform:translateX(-50%);
  border-left:7px solid transparent;border-right:7px solid transparent;z-index:3;
}
.sheet::before{top:-1px;border-top:9px solid var(--ink)}
.sheet::after{bottom:-1px;border-bottom:9px solid var(--ink)}
.wrap{max-width:1240px;margin:0 auto;padding:0 var(--pad);width:100%}

/* ---------- testata: quadro andon dei calcolatori ---------- */
.nav{position:sticky;top:0;z-index:20;background:var(--paper);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:20px;min-height:64px}
.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none;white-space:nowrap}
.brand strong{font-weight:800;font-size:17px}
.brand em{font-style:normal;font-stretch:75%;font-weight:650;color:var(--carmine);font-size:15px;letter-spacing:.08em}
.stations{display:flex;gap:4px;margin:0 0 0 auto;padding:0;list-style:none}
.stations a,.stations .on{display:flex;align-items:center;gap:8px;padding:8px 10px;text-decoration:none;font-size:15px;color:var(--ink-2);white-space:nowrap}
.stations a:hover{color:var(--ink)}
.stations .on{color:var(--ink);font-weight:700}
.lamp{width:9px;height:9px;border-radius:50%;flex:none;border:1.5px solid var(--muted);background:transparent}
.stations .on .lamp{background:var(--carmine);border-color:var(--carmine);box-shadow:0 0 0 3px rgba(157,6,32,.14),0 0 10px rgba(157,6,32,.55)}
.back{font-weight:700;text-decoration:none;white-space:nowrap;font-size:15px}
.back:hover{color:var(--carmine)}

.calc-head{padding:clamp(32px,5vw,64px) 0 clamp(24px,3vw,36px)}
.byline{display:flex;gap:16px;align-items:center;margin-bottom:18px;color:var(--ink-2);font-size:15px}
.byline .tech{color:var(--carmine);letter-spacing:.08em}
.byline i{flex:0 1 90px;height:0;border-top:1px dashed var(--muted)}
.calc-head h1{font-weight:850;font-stretch:84%;font-size:clamp(34px,5vw,60px);line-height:1.02;letter-spacing:-.015em;margin-bottom:10px}
.calc-head .sub{color:var(--ink-2);font-size:clamp(17px,1.6vw,19px);margin-bottom:22px;max-width:40em}

.btn{display:inline-flex;align-items:center;gap:10px;padding:10px 16px;background:var(--ink);color:#fff;text-decoration:none;font:inherit;font-weight:700;font-size:15px;border:1.5px solid var(--ink);cursor:pointer;transition:background .2s,border-color .2s,color .2s}
.btn:hover{background:var(--carmine);border-color:var(--carmine);color:#fff}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{color:#fff}

/* ---------- impaginazione ---------- */
main{max-width:1240px;width:100%;margin:0 auto 40px;padding:0 var(--pad);flex-grow:1;display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:992px){main{grid-template-columns:1.1fr .9fr}}
.card{background:var(--paper);border:1.5px solid var(--ink);padding:clamp(18px,2.4vw,28px)}

/* ---------- selettori a schede ---------- */
.mode-container{display:flex;border:1.5px solid var(--ink);margin-bottom:24px}
.mode-tab{flex:1;text-align:center;padding:11px 12px;font-weight:700;font-size:15px;cursor:pointer;color:var(--ink-2);transition:background .2s,color .2s;user-select:none}
.mode-tab + .mode-tab{border-left:1.5px solid var(--ink)}
.mode-tab:hover{color:var(--ink);background:var(--carmine-wash)}
.mode-tab.active{background:var(--ink);color:#fff}

/* ---------- campi ---------- */
.form-group{margin-bottom:20px}
label{display:block;font-size:14px;font-weight:650;margin-bottom:7px;color:var(--ink-2)}
.input-container{position:relative;display:flex;align-items:center}
.currency-symbol{position:absolute;left:14px;font-size:20px;font-weight:700;color:var(--ink-3)}
.styled-input,.styled-select,.input-mini{
  width:100%;background:var(--paper);color:var(--ink);font:inherit;
  border:1.5px solid var(--line);border-radius:0;outline:none;transition:border-color .2s;
}
.styled-input{padding:12px 14px 12px 36px;font-size:22px;font-weight:750}
.styled-select{padding:11px 12px;font-size:15px;cursor:pointer}
.input-mini{padding:8px 10px;font-size:15px}
.styled-input:hover,.styled-select:hover,.input-mini:hover{border-color:var(--muted)}
.styled-input:focus,.styled-select:focus,.input-mini:focus{border-color:var(--carmine)}

.slider-container{margin:14px 0 24px}
.slider-labels{display:flex;justify-content:space-between;font-size:13px;color:var(--ink-3);margin-top:6px}
.styled-slider{width:100%;accent-color:var(--carmine);cursor:pointer}

.select-container{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:576px){.select-container{grid-template-columns:1fr 1fr}}

.checkbox-label{display:flex;align-items:center;gap:10px;cursor:pointer;user-select:none;font-weight:600;color:var(--ink)}
.checkbox-label input{width:18px;height:18px;accent-color:var(--carmine);cursor:pointer;flex:none}

.hint{font-size:13.5px;color:var(--ink-3);margin-top:6px;line-height:1.45}
.hint.tight{margin-top:-6px}
.sub-h{font-size:13px;font-stretch:75%;font-weight:750;letter-spacing:.08em;text-transform:uppercase;color:var(--carmine);border-bottom:1px solid var(--line);padding-bottom:6px;margin-bottom:12px}
.sub-h.spaced{margin-top:18px}

/* ---------- opzioni avanzate ---------- */
.adv-header{display:flex;justify-content:space-between;align-items:center;cursor:pointer;padding:14px 0;border-top:1px solid var(--line);margin-top:24px;user-select:none}
.adv-title{font-size:16px;font-weight:750}
.adv-header:hover .adv-title{text-decoration:underline;text-decoration-color:var(--carmine);text-underline-offset:5px;text-decoration-thickness:2px}
.adv-header .arrow{color:var(--carmine);font-size:13px;transition:transform .25s}
.adv-panel{max-height:0;overflow:hidden;transition:max-height .4s ease-out,padding .4s ease}
.adv-panel.open{max-height:900px;padding:16px 0;border-bottom:1px solid var(--line);margin-bottom:16px}
.family-row{display:grid;grid-template-columns:1fr;gap:12px;align-items:center}
@media (min-width:576px){.family-row{grid-template-columns:1.5fr 1fr}}

/* ---------- risultato ---------- */
.result-summary{text-align:left;padding-bottom:22px;border-bottom:1.5px solid var(--ink);margin-bottom:24px}
.summary-title{font-stretch:75%;font-weight:700;font-size:15px;letter-spacing:.06em;text-transform:uppercase;color:var(--carmine);margin-bottom:6px}
.main-result{font-weight:850;font-stretch:84%;font-size:clamp(40px,5vw,56px);line-height:1.05;letter-spacing:-.01em;color:var(--ink)}
.secondary-result{font-size:15.5px;color:var(--ink-3);margin-top:4px}
.secondary-result span{color:var(--ink);font-weight:700}

/* ---------- ciambella ---------- */
.chart-section{display:flex;flex-direction:column;align-items:center;gap:20px;margin-bottom:30px}
@media (min-width:576px){.chart-section{flex-direction:row;justify-content:space-around}}
.donut-wrapper{position:relative;width:150px;height:150px;flex:none}
.donut-svg{width:100%;height:100%;transform:rotate(-90deg)}
.donut-svg circle{fill:none;stroke-width:12;transition:stroke-dasharray .5s ease,stroke-dashoffset .5s ease}
.donut-bg{stroke:var(--line)}
.donut-slice-net{stroke:var(--carmine)}
.donut-slice-inps{stroke:var(--ink)}
.donut-slice-irpef{stroke:var(--muted)}
.donut-slice-local{stroke:var(--carmine-pale)}
.donut-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center}
.donut-center-label{font-stretch:75%;font-size:12px;letter-spacing:.08em;color:var(--ink-3);text-transform:uppercase;font-weight:700}
.donut-center-val{font-size:20px;font-weight:800}
.chart-legend{display:flex;flex-direction:column;gap:10px}
.legend-item{display:flex;align-items:center;gap:10px;font-size:14.5px}
.legend-color{width:12px;height:12px;flex:none}
.color-net{background:var(--carmine)}
.color-inps{background:var(--ink)}
.color-irpef{background:var(--muted)}
.color-local{background:var(--carmine-pale)}
.legend-text{font-weight:600}
.legend-pct{margin-left:auto;color:var(--ink-3);font-size:14px;padding-left:16px}

/* ---------- distinta delle voci ---------- */
.details-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:12px;flex-wrap:wrap}
.details-section h3{font-stretch:75%;font-weight:750;font-size:15px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);margin:0}
.period-toggle-container{display:flex;border:1.5px solid var(--ink)}
.period-tab{background:transparent;border:0;color:var(--ink-2);padding:6px 12px;font:inherit;font-size:14px;font-weight:700;cursor:pointer}
.period-tab + .period-tab{border-left:1.5px solid var(--ink)}
.period-tab:hover{background:var(--carmine-wash);color:var(--ink)}
.period-tab.active{background:var(--ink);color:#fff}
.table-wrapper{overflow-x:auto;border:1.5px solid var(--ink)}
table{width:100%;border-collapse:collapse;font-size:15px}
tr{border-bottom:1px solid var(--line)}
tr:last-child{border-bottom:0}
tr.zero-value{display:none}
td{padding:9px 12px;vertical-align:top}
td.value{text-align:right;font-weight:700;white-space:nowrap}
tr.row-section{background:#F7F6F2}
tr.row-section td{font-weight:750;color:var(--ink)}
tr.row-total{border-top:1.5px solid var(--ink)}
tr.row-total td{font-weight:850;font-size:16px;color:var(--ink);padding:12px}
tr.row-total td.value{color:var(--carmine)}
.text-danger{color:var(--carmine)!important}
.text-success{color:var(--ink)!important}
tr.row-azienda-only{background:var(--carmine-wash)}
#row-azienda-totale{border-top:1.5px solid var(--ink)}
#row-azienda-totale td{font-weight:800}

/* ---------- avvisi ---------- */
.avviso{margin-top:14px;padding:12px 14px;background:var(--carmine-wash);border-left:3px solid var(--carmine);font-size:14.5px;line-height:1.55;color:var(--ink)}
.avviso p{margin:0}
.avviso p + p{margin-top:8px}

/* ---------- come funziona ---------- */
.info-section{grid-column:1 / -1;margin-top:8px}
.info-h{font-weight:850;font-stretch:84%;font-size:clamp(24px,2.6vw,32px);line-height:1.1;margin-bottom:6px}
.info-grid{display:grid;grid-template-columns:1fr;gap:24px;margin-top:18px}
@media (min-width:768px){.info-grid{grid-template-columns:repeat(3,1fr)}}
.info-card{border-top:1px solid var(--line);padding-top:14px}
.info-card h4{font-size:17px;font-weight:800;margin-bottom:8px;color:var(--ink)}
.info-card p{font-size:15px;line-height:1.6;color:var(--ink-2)}
.info-card strong{color:var(--ink)}

/* ---------- piede e cartiglio ---------- */
footer{padding:8px 0 0;margin-top:24px;border-top:1.5px solid var(--ink)}
.disclaimer{max-width:62em;color:var(--ink-3);font-size:14.5px;padding-top:24px}
.title-block{margin:40px 0 0 auto;max-width:640px;border:1.5px solid var(--ink);display:grid;grid-template-columns:repeat(6,1fr);font-size:14.5px}
.title-block > div{padding:8px 12px 10px;border-right:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.title-block small{display:block;font-stretch:75%;font-weight:700;font-size:11.5px;letter-spacing:.08em;color:var(--ink-3);text-transform:uppercase}
.title-block .main{grid-column:span 4;font-weight:850;font-size:19px;display:flex;flex-direction:column;justify-content:center}
.title-block .main .sig{font-stretch:75%;letter-spacing:.14em;color:var(--carmine);font-size:14px;font-weight:800}
.title-block .logo{grid-column:span 2;border-right:0;display:grid;place-items:center;padding:6px}
.title-block .logo img{width:52px;height:auto}
.title-block .c2{grid-column:span 2}
.title-block .end{border-right:0}
.title-block .last{border-bottom:0}
.copy{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0 28px;font-size:14px;color:var(--ink-3)}

/* ---------- schermi stretti ---------- */
@media (max-width:900px){
  .stations .lbl{display:none}
  .stations a,.stations .on{padding:8px 7px}
  .stations .lamp{width:11px;height:11px}
}
@media (max-width:640px){
  .sheet{margin:6px;box-shadow:none;min-height:calc(100vh - 12px)}
  .nav .wrap{flex-wrap:wrap;gap:4px 14px;padding-top:10px;padding-bottom:8px}
  .stations{order:3;width:100%;margin:0;overflow-x:auto;scrollbar-width:none}
  .stations .lbl{display:inline}
  .stations{gap:0}
  .stations a,.stations .on{padding:6px 12px 6px 0;font-size:14px;gap:6px}
  .back{margin-left:auto}
  .title-block{grid-template-columns:1fr 1fr}
  .title-block .main{grid-column:span 2;border-right:0}
  .title-block .logo{display:none}
  .title-block .c2{grid-column:span 1}
  .title-block .c2:nth-child(odd){border-right:1px solid var(--ink)}
  .title-block .c2:nth-child(even){border-right:0}
  .title-block .c2:nth-child(6){border-bottom:1px solid var(--ink)}
  td{padding:9px 8px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* ---------- stampa: solo risultato e distinta ---------- */
@media print{
  .sheet{margin:0;border:0;box-shadow:none;min-height:0}
  .sheet::before,.sheet::after,.nav,.calc-head .btn,.byline,
  .mode-container,.period-toggle-container,.form-group,.adv-header,.adv-panel,.info-section,footer .title-block,footer .copy{display:none!important}
  main{grid-template-columns:1fr!important;padding:0!important;margin:0!important}
  .card{border:0!important;padding:0!important}
  .calc-head{padding:0 0 12px}
  .table-wrapper{border:1px solid #999}
  tr.zero-value{display:none!important}
  .chart-section{page-break-inside:avoid}
}