/* ============================================================
   ZEPHIRA — design system
   carta / inchiostro / minio / collaudo
   ============================================================ */
:root{
  --carta:#F6F6F2;
  --carta-2:#EDEEE8;
  --inchiostro:#1B2129;
  --inchiostro-70:#4A5261;
  --linea:#C9CCC3;
  --minio:#B23A25;
  --minio-soft:#F0937D;
  --collaudo:#2E6B4E;
  --collaudo-soft:#7FC9A4;
  --soglia:#8A93A0;
  --ambra:#C08A2D;
  --mono:'IBM Plex Mono',monospace;
  --sans:'IBM Plex Sans',sans-serif;
  --disp:'Archivo',sans-serif;
  --ease-reveal:cubic-bezier(.22,1,.36,1);
  --ease-std:cubic-bezier(.33,0,.66,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--carta);color:var(--inchiostro);line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:inherit}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--minio);font-weight:600}
.eyebrow .n{color:var(--inchiostro-70);font-weight:400;margin-right:8px}
h1,h2,h3,h4{font-family:var(--disp);font-stretch:112%;line-height:1.12;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(26px,4vw,38px);margin-bottom:16px}
h3{font-size:clamp(19px,2.4vw,23px)}
p.lead{font-size:19px;color:var(--inchiostro-70);max-width:60ch}
.section{padding:64px 0}
@media(min-width:821px){.section{padding:84px 0}}
.section+.section{border-top:1px solid var(--linea)}

/* ---------- reveal on scroll ---------- */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .56s var(--ease-reveal),transform .56s var(--ease-reveal);transition-delay:calc(var(--i,0)*70ms)}
[data-reveal].in{opacity:1;transform:none}

/* ---------- pulsanti ---------- */
.btn{display:inline-block;font-family:var(--disp);font-stretch:105%;font-weight:600;font-size:16px;padding:14px 26px;border:2px solid var(--inchiostro);text-decoration:none;transition:background .18s var(--ease-std),color .18s var(--ease-std),border-color .18s var(--ease-std);cursor:pointer;background:transparent;color:var(--inchiostro)}
.btn:hover{background:var(--inchiostro);color:var(--carta)}
.btn.primary{background:var(--inchiostro);color:var(--carta)}
.btn.primary:hover{background:var(--minio);border-color:var(--minio)}
.btn.ghost{border-color:transparent;text-decoration:underline;text-underline-offset:4px;padding:14px 8px}
.btn.ghost:hover{background:transparent;color:var(--minio);text-decoration-color:var(--minio)}
.btn:focus-visible,.tgl button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.burger:focus-visible,details summary:focus-visible{outline:3px solid var(--minio);outline-offset:2px}

/* ---------- header ---------- */
header{position:sticky;top:0;background:var(--carta);border-bottom:1px solid var(--linea);z-index:60}
.hd{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{font-family:var(--disp);font-stretch:120%;font-weight:800;font-size:20px;letter-spacing:.04em;text-decoration:none;flex:0 0 auto}
.logo span{color:var(--minio)}
.hd nav{display:none;gap:22px;font-size:14px}
.hd nav a{text-decoration:none;color:var(--inchiostro-70);padding:6px 0;border-bottom:2px solid transparent}
.hd nav a:hover{color:var(--inchiostro)}
.hd nav a[aria-current="page"]{color:var(--inchiostro);border-bottom-color:var(--minio)}
.hd .hd-cta{display:none;font-size:13.5px;padding:9px 16px}
.hd .tgl{display:none}
@media(min-width:1025px){
  .hd nav{display:flex}
  .hd .hd-cta{display:inline-block}
  .hd .tgl{display:flex}
}
/* hamburger */
.burger{display:flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border:1.5px solid var(--inchiostro);background:transparent;cursor:pointer;padding:10px}
.burger i{display:block;height:2px;background:var(--inchiostro);transition:transform .25s var(--ease-std),opacity .2s}
@media(min-width:1025px){.burger{display:none}}
body.nav-open .burger i:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .burger i:nth-child(2){opacity:0}
body.nav-open .burger i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mnav{display:none;border-bottom:1px solid var(--linea);background:var(--carta);padding:8px 0 20px}
body.nav-open .mnav{display:block}
.mnav a{display:block;padding:13px 0;text-decoration:none;font-family:var(--disp);font-stretch:108%;font-weight:600;font-size:19px;border-bottom:1px solid var(--linea)}
.mnav a[aria-current="page"]{color:var(--minio)}
.mnav .mnav-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:16px;flex-wrap:wrap}

/* ---------- toggle livello ---------- */
.tgl{display:flex;align-items:center;gap:0;border:1.5px solid var(--inchiostro);font-family:var(--mono);font-size:12px;letter-spacing:.05em;flex:0 0 auto}
.tgl button{font-family:var(--mono);font-size:12px;letter-spacing:.05em;padding:8px 14px;border:0;background:transparent;color:var(--inchiostro);cursor:pointer;text-transform:uppercase}
.tgl button.on{background:var(--inchiostro);color:var(--carta)}
[data-level="prop"] .lv-tec{display:none}
[data-level="tec"] .lv-prop{display:none}
.lv-tec{font-feature-settings:"tnum"}
.tec-note{background:var(--carta-2);border-left:3px solid var(--soglia);padding:14px 18px;font-size:15px;margin-top:14px}

/* ---------- righello firma ---------- */
.rule{height:34px;position:relative;max-width:640px}
.rule .axis{position:absolute;left:0;right:0;top:16px;height:2px;background:var(--inchiostro)}
.rule .tick{position:absolute;top:10px;width:1.5px;height:14px;background:var(--inchiostro)}
.rule .tick.minor{top:13px;height:8px;background:var(--soglia)}
.rule .tick.acc{top:8px;height:18px;background:var(--minio);width:2px}
.rule .lbl{position:absolute;top:32px;transform:translateX(-50%);font-family:var(--mono);font-size:10.5px;color:var(--inchiostro-70);white-space:nowrap}
.sep-rule{height:18px;position:relative;opacity:.55}
.sep-rule .axis{position:absolute;left:0;right:0;top:8px;height:1px;background:var(--linea)}
.sep-rule .tick{position:absolute;top:4px;width:1px;height:9px;background:var(--soglia)}

/* ---------- hero ---------- */
.hero{padding:52px 0 56px}
@media(min-width:821px){.hero{padding:76px 0 72px}}
.hero h1{font-size:clamp(30px,5.4vw,56px);max-width:20ch;margin-top:14px}
.hero .rule{margin-top:18px}
.hero .sub{max-width:58ch;margin:24px 0 30px;font-size:18px;color:var(--inchiostro-70)}
.hero .ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero .proof{margin-top:26px;font-family:var(--mono);font-size:13px;color:var(--inchiostro-70);border-left:3px solid var(--collaudo);padding-left:14px;max-width:60ch}
.hero .proof b{color:var(--inchiostro)}
.hero .proof a{color:var(--minio)}
.hero .tags{margin-top:26px;font-family:var(--mono);font-size:12.5px;color:var(--inchiostro-70);letter-spacing:.03em}

/* ---------- page hero (pagine interne) ---------- */
.phero{padding:48px 0 40px;border-bottom:1px solid var(--linea)}
@media(min-width:821px){.phero{padding:68px 0 52px}}
.phero h1{font-size:clamp(28px,4.6vw,46px);max-width:22ch;margin-top:12px}
.phero .lead{margin-top:18px}

/* ---------- cards riconoscimento ---------- */
.cards{display:grid;grid-template-columns:1fr;gap:1px;background:var(--linea);border:1px solid var(--linea);margin-top:34px}
@media(min-width:561px){.cards{grid-template-columns:1fr 1fr}}
@media(min-width:861px){.cards{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--carta);padding:26px 24px;text-decoration:none;display:block;transition:background .18s var(--ease-std)}
.card:hover{background:#fff}
.card h3{font-size:18px;margin-bottom:8px}
.card p{font-size:14.5px;color:var(--inchiostro-70)}
.card .n{font-family:var(--mono);font-size:11px;color:var(--minio);display:block;margin-bottom:10px}
.card .go{font-family:var(--mono);font-size:11.5px;color:var(--inchiostro-70);display:inline-block;margin-top:14px;letter-spacing:.06em;text-transform:uppercase}
.card:hover .go{color:var(--minio)}

/* ---------- fiducia ---------- */
.big-claim{font-family:var(--disp);font-stretch:110%;font-weight:700;font-size:clamp(24px,3.6vw,34px);max-width:26ch}
.motto{font-family:var(--mono);font-size:14px;font-weight:600;letter-spacing:.06em;margin-top:22px;display:inline-block;border:1.5px solid var(--inchiostro);padding:10px 16px}

/* ---------- fasi ---------- */
.fasi{display:grid;grid-template-columns:1fr;gap:40px;margin-top:34px}
@media(min-width:861px){.fasi{grid-template-columns:1fr 1fr}}
.fase{border-top:3px solid var(--inchiostro);padding-top:20px}
.fase h3{font-size:21px;margin-bottom:6px}
.fase .f-eyebrow{font-family:var(--mono);font-size:12px;color:var(--minio);letter-spacing:.1em;text-transform:uppercase;font-weight:600}
.chain{font-family:var(--mono);font-size:12.5px;color:var(--inchiostro-70);margin:14px 0;line-height:1.9}
.chain b{color:var(--inchiostro)}
.esiti{margin-top:16px;display:grid;gap:12px}
.esito{display:flex;gap:12px;align-items:flex-start;font-size:15px}
.esito .dot{flex:0 0 10px;height:10px;margin-top:7px;border-radius:50%}
.dot.g{background:var(--collaudo)}.dot.o{background:var(--ambra)}.dot.r{background:var(--minio)}
.esito .caso-nota{display:block;font-size:13.5px;color:var(--inchiostro-70);margin-top:3px}
.fase .motto{font-size:12.5px;margin-top:20px}
.quote-inline{font-family:var(--disp);font-stretch:108%;font-weight:600;font-size:17px;border-left:4px solid var(--collaudo);padding-left:16px;margin-top:20px;max-width:44ch}

/* ---------- caso reale (sezione scura) ---------- */
.caso{background:var(--inchiostro);color:var(--carta)}
.caso .eyebrow{color:var(--minio-soft)}
.caso h2,.caso h3{color:#fff}
.caso p{color:#C6CBD3}
.caso .btn{border-color:#fff;color:#fff}
.caso .btn:hover{background:#fff;color:var(--inchiostro)}
.caso .btn.primary{background:var(--minio);border-color:var(--minio);color:#fff}
.caso .btn.primary:hover{background:#C6482F;border-color:#C6482F}

/* gauge */
.gauge{margin:44px 0 8px;position:relative;height:118px}
.gauge .axis{position:absolute;left:0;right:0;top:58px;height:2px;background:#5A6270}
.gauge .zonefill{position:absolute;left:44.71%;top:57px;height:4px;background:linear-gradient(90deg,var(--minio),var(--ambra) 45%,var(--collaudo));width:0;transition:width 1.6s var(--ease-reveal)}
.gauge.play .zonefill{width:48.08%}
.gauge .gtick{position:absolute;top:52px;width:2px;height:18px;background:#8A93A0}
.gauge .gtick.major{background:#fff;height:26px;top:46px}
.gauge .glbl{position:absolute;transform:translateX(-50%);font-family:var(--mono);text-align:center}
.glbl .v{font-weight:600;font-size:15px;color:#fff;display:block;white-space:nowrap}
.glbl .t{font-size:10px;color:#9AA1AC;letter-spacing:.05em;text-transform:uppercase;white-space:nowrap}
.glbl.top{top:6px}.glbl.bot{top:82px}
.glbl .v.start{color:var(--minio-soft)}.glbl .v.end{color:var(--collaudo-soft)}
.gauge .marker{position:absolute;top:38px;width:2.5px;height:40px;background:var(--minio-soft)}
.gauge .marker.end{background:var(--collaudo-soft)}
.gauge .marker.dash{background:repeating-linear-gradient(to bottom,#C6CBD3 0 4px,transparent 4px 8px);width:1.5px}
.gauge-caption{font-family:var(--mono);font-size:12px;color:#9AA1AC;margin-top:6px}
/* etichette gauge: su schermi stretti sfalsiamo la riga inferiore */
@media(max-width:640px){
  .gauge{height:150px}
  .gauge .glbl.stagger{top:104px}
  .gauge .glbl .t{letter-spacing:.02em}
}
/* mini gauge controcaso (chiara) */
.minigauge{position:relative;height:88px;margin:26px 0 4px;max-width:560px}
.minigauge .axis{position:absolute;left:0;right:0;top:44px;height:2px;background:var(--soglia)}
.minigauge .gtick{position:absolute;top:38px;width:2px;height:14px;background:var(--inchiostro-70)}
.minigauge .marker{position:absolute;top:26px;width:3px;height:36px;background:var(--collaudo)}
.minigauge .glbl{position:absolute;transform:translateX(-50%);font-family:var(--mono);text-align:center}
.minigauge .glbl .v{color:var(--collaudo);font-weight:600;font-size:14px;display:block}
.minigauge .glbl .t{color:var(--inchiostro-70);font-size:10px;letter-spacing:.05em;text-transform:uppercase;white-space:nowrap}
.minigauge .glbl.top{top:0}.minigauge .glbl.bot{top:64px}
.minigauge .noWork{position:absolute;top:12px;transform:translateX(-50%);font-family:var(--mono);font-size:10.5px;color:var(--collaudo);letter-spacing:.06em;text-transform:uppercase}

/* timeline stazioni */
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:#3A4250;border:1px solid #3A4250;margin-top:40px}
@media(min-width:601px){.steps{grid-template-columns:repeat(4,1fr)}}
@media(min-width:921px){.steps{grid-template-columns:repeat(7,1fr)}}
.step{background:var(--inchiostro);padding:16px 12px}
.step .sn{font-family:var(--mono);font-size:10.5px;color:#8A93A0;display:block;margin-bottom:6px}
.step .st{display:block;font-family:var(--disp);font-stretch:108%;font-weight:600;font-size:14px;color:#fff;line-height:1.25}
.step .sd{display:block;font-size:12px;color:#9AA1AC;margin-top:4px}

/* vault documentale */
.vault{margin-top:36px;border:1px dashed #5A6270;padding:22px}
.vault-head{font-size:14.5px;color:#C6CBD3;margin-bottom:18px;max-width:70ch}
.vault-head b{color:#fff}
.vault-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:481px){.vault-grid{grid-template-columns:repeat(3,1fr)}}
.vdoc{position:relative;background:#F2F1EC;overflow:hidden;aspect-ratio:4/5}
.vdoc svg{width:100%;height:100%;display:block;filter:blur(4px) saturate(.85);transform:scale(1.04)}
.vdoc .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(27,33,41,.18),rgba(27,33,41,.5));display:flex;align-items:flex-end;padding:12px}
.vdoc .vlbl{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:rgba(27,33,41,.75);padding:6px 10px}
.vault-cta{margin-top:18px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.vault-cta .note{font-size:12.5px;color:#9AA1AC;font-family:var(--mono)}

/* capitoli caso */
.capitoli{margin-top:44px}
.capitoli article{padding:26px 0;border-top:1px solid #3A4250;max-width:72ch}
.capitoli h3{font-size:19px;margin-bottom:8px}
.capitoli h3 .cap-n{font-family:var(--mono);font-size:11px;color:#8A93A0;display:block;margin-bottom:6px;letter-spacing:.1em}
.capitoli p{font-size:15.5px}
.capitoli p+p{margin-top:10px}
.risultato-finale{font-family:var(--disp);font-stretch:110%;font-weight:700;font-size:clamp(20px,3vw,27px);color:#fff;border-left:4px solid var(--collaudo-soft);padding-left:18px;margin:30px 0;max-width:34ch}

/* blocco tecnico espandibile */
details.tec{margin-top:30px;border:1px dashed #5A6270;padding:0}
details.tec summary{cursor:pointer;list-style:none;padding:16px 20px;font-family:var(--mono);font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:#C6CBD3;display:flex;justify-content:space-between;align-items:center}
details.tec summary::-webkit-details-marker{display:none}
details.tec summary::after{content:"+";font-size:18px;color:var(--minio-soft)}
details.tec[open] summary::after{content:"–"}
details.tec .tec-body{padding:0 20px 20px;font-size:14.5px;color:#C6CBD3;line-height:1.9}
details.tec .tec-body b{color:#fff}

/* blocco tecnico espandibile — variante chiara */
details.tec.light{border:1px solid var(--linea);background:var(--carta-2)}
details.tec.light summary{color:var(--inchiostro)}
details.tec.light summary::after{color:var(--minio)}
details.tec.light .tec-body{color:var(--inchiostro-70)}
details.tec.light .tec-body b{color:var(--inchiostro)}

/* ---------- controcaso ---------- */
.contro{background:var(--carta-2)}
.contro .quote{font-family:var(--disp);font-stretch:110%;font-weight:700;font-size:clamp(21px,3vw,28px);max-width:30ch;border-left:4px solid var(--collaudo);padding-left:20px}

/* ---------- patrimonio ---------- */
.patrimonio .quattro{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--linea);border:1px solid var(--linea);margin-top:30px}
@media(min-width:861px){.patrimonio .quattro{grid-template-columns:repeat(4,1fr)}}
.patrimonio .quattro div{background:var(--carta);padding:26px 18px;font-family:var(--disp);font-stretch:118%;font-weight:800;font-size:clamp(17px,2.4vw,22px);letter-spacing:.01em;line-height:1.15}
.patrimonio .quattro div span{display:block;font-family:var(--mono);font-weight:400;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--inchiostro-70);margin-top:10px}

/* ---------- liste professionali / definizioni ---------- */
.ruoli{font-family:var(--mono);font-size:13px;color:var(--inchiostro-70);margin-top:14px;line-height:2}
.duo{display:grid;grid-template-columns:1fr;gap:34px;margin-top:30px}
@media(min-width:861px){.duo{grid-template-columns:1fr 1fr}}
.duo .box{border-top:3px solid var(--inchiostro);padding-top:18px}
.duo .box h3{margin-bottom:10px}
.duo ul{list-style:none;margin-top:8px}
.duo li{padding:9px 0 9px 22px;position:relative;font-size:15.5px;border-bottom:1px solid var(--linea)}
.duo li::before{content:"—";position:absolute;left:0;color:var(--minio)}

/* ---------- firma ---------- */
.firma{display:flex;gap:18px;align-items:center;margin-top:26px;border:1px solid var(--linea);padding:18px 20px;max-width:640px}
.firma .sig{flex:0 0 52px;height:52px;border:2px solid var(--inchiostro);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--disp);font-weight:800;font-size:17px;font-stretch:115%}
.firma p{font-size:14.5px;color:var(--inchiostro-70)}
.firma p b{color:var(--inchiostro)}

/* ---------- form ---------- */
.formgrid{display:grid;grid-template-columns:1fr;gap:18px;margin-top:30px}
@media(min-width:721px){.formgrid{grid-template-columns:1fr 1fr}}
.fld{display:flex;flex-direction:column;gap:6px}
.fld.full{grid-column:1/-1}
.fld label{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--inchiostro-70)}
.fld input,.fld select,.fld textarea{font-family:var(--sans);font-size:16px;padding:12px 14px;border:1.5px solid var(--linea);background:#fff;color:var(--inchiostro);width:100%}
.fld textarea{min-height:110px;resize:vertical}
.fld input[type=file]{padding:10px 14px;font-size:14px}
.fld .hint{font-size:12.5px;color:var(--inchiostro-70)}
.check{flex-direction:row;align-items:flex-start;gap:10px}
.check input{width:18px;height:18px;margin-top:3px}
.check label{font-family:var(--sans);font-size:13.5px;letter-spacing:0;text-transform:none;color:var(--inchiostro-70)}
.form-note{grid-column:1/-1;font-size:13.5px;color:var(--inchiostro-70);border-top:1px solid var(--linea);padding-top:16px;margin-top:6px}
.ok-msg{display:none;background:var(--collaudo);color:#fff;padding:18px 20px;margin-top:20px;font-size:15px}

/* ---------- teaser link page ---------- */
.teaser{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--linea);padding:40px 0 46px;font-size:13.5px;color:var(--inchiostro-70);background:var(--carta-2)}
footer .cols{display:grid;grid-template-columns:1fr;gap:26px}
@media(min-width:721px){footer .cols{grid-template-columns:2fr 1fr 1fr}}
footer h4{font-size:13px;font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--inchiostro);margin-bottom:10px}
footer a{text-decoration:none}
footer a:hover{color:var(--minio)}
footer .fline{display:block;padding:3px 0}
footer .legal{margin-top:30px;padding-top:16px;border-top:1px solid var(--linea);font-family:var(--mono);font-size:11.5px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ---------- motion safety ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none;transition:none}
  .gauge .zonefill{transition:none;width:48.08%}
  .burger i{transition:none}
}