:root{
  --ink:#0b1320;
  --ink-2:#101c30;
  --ink-3:#16243b;
  --paper:#f4f0e7;
  --paper-2:#e9e1d2;
  --paper-line:#d8d0bf;
  --accent:#d8743a;
  --accent-dim:#b85f2c;
  --steel:#7d97b3;
  --steel-dim:#4a6178;
  --steel-line:rgba(125,151,179,.22);
  --txt-on-ink:#e7e2d6;
  --txt-on-ink-mut:#9aa6b8;
  --txt-body:#525a68;
  --serif:'Fraunces',Georgia,serif;
  --sans:'Hanken Grotesk',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --maxw:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);background:var(--paper);color:var(--ink);
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.mono{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase}

/* ---------- HEADER ---------- */
header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .4s var(--ease),border-color .4s var(--ease),padding .4s var(--ease);
  border-bottom:1px solid transparent;padding:clamp(10px,2vw,14px) 0;
}
header.scrolled,header.solid{
  background:rgba(11,19,32,.86);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--steel-line);padding:14px 0;
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px}

.brand{display:flex;align-items:center;gap:12px;color:var(--txt-on-ink)}
.brand .mark{width:34px;height:34px;flex:none;border:1.5px solid var(--accent);border-radius:50%;display:grid;place-items:center;position:relative}
.brand .mark::before,.brand .mark::after{content:"";position:absolute;background:var(--accent)}
.brand .mark::before{width:1.5px;height:14px}
.brand .mark::after{height:1.5px;width:14px}
.brand .mark span{width:7px;height:7px;border-radius:50%;background:var(--accent);z-index:1}
.brand b{font-family:var(--serif);font-weight:600;font-size:1.06rem;letter-spacing:.02em;line-height:1.05}
.brand small{display:block;font-family:var(--mono);font-size:.56rem;letter-spacing:.28em;color:var(--steel);text-transform:uppercase;margin-top:2px}
.brand-logo{height:clamp(96px,18vw,150px);margin-block:clamp(-45px,-5.4vw,-29px);width:auto;display:block}
.nav .brand-logo{transform:translateY(4.4%)}

nav ul{display:flex;list-style:none;gap:30px;align-items:center}
nav a{font-size:.86rem;font-weight:500;color:var(--txt-on-ink-mut);transition:color .25s;position:relative}
nav a:hover,nav a.active{color:var(--txt-on-ink)}
nav a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1px;background:var(--accent);transition:width .3s var(--ease)}
nav a:hover::after,nav a.active::after{width:100%}
nav a.btn::after{display:none}

.btn{font-family:var(--sans);font-weight:600;font-size:.84rem;display:inline-flex;align-items:center;gap:8px;cursor:pointer;padding:11px 20px;border-radius:2px;transition:.25s var(--ease);border:1px solid transparent}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dim);transform:translateY(-1px)}
.btn-ghost{border-color:var(--steel);color:var(--txt-on-ink)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-dark{background:var(--ink);color:var(--paper)}
.btn-dark:hover{background:var(--ink-2)}
.btn .arr{transition:transform .25s var(--ease)}
.btn:hover .arr{transform:translateX(3px)}

.menu-toggle{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:10px;margin-right:-10px}
.menu-toggle span{width:24px;height:2px;background:var(--txt-on-ink);transition:.3s}

/* ---------- PAGE HERO ---------- */
.page-hero{background:var(--ink);color:var(--txt-on-ink);position:relative;overflow:hidden;padding:clamp(110px,16vw,160px) 0 clamp(48px,7vw,70px)}
.page-hero .blueprint{position:absolute;inset:0;background-image:linear-gradient(var(--steel-line) 1px,transparent 1px),linear-gradient(90deg,var(--steel-line) 1px,transparent 1px);background-size:64px 64px;-webkit-mask-image:radial-gradient(ellipse 80% 90% at 80% 20%,#000,transparent 72%);mask-image:radial-gradient(ellipse 80% 90% at 80% 20%,#000,transparent 72%);opacity:.5}
.page-hero .glow{position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(216,116,58,.14),transparent 65%);top:-160px;right:-60px;pointer-events:none}
.page-hero-inner{position:relative;max-width:64ch}

.crumb{color:var(--accent);margin-bottom:22px;display:flex;align-items:center;gap:10px}
.crumb::before{content:"";width:30px;height:1px;background:var(--accent)}
.crumb a{color:var(--txt-on-ink-mut)}
.crumb a:hover{color:var(--accent)}

.page-hero h1{font-family:var(--serif);font-weight:500;font-size:clamp(2.2rem,4.6vw,3.5rem);line-height:1.06;letter-spacing:-.015em;margin-bottom:22px}
.page-hero h1 em{font-style:italic;color:var(--accent)}
.page-hero p{font-size:1.06rem;color:var(--txt-on-ink-mut);max-width:54ch}

/* ---------- SECTIONS / intestazioni ---------- */
section{padding:clamp(48px,8vw,96px) 0}
.sec-head{margin-bottom:clamp(32px,5vw,54px);max-width:62ch}
.sec-kicker{color:var(--accent-dim);display:flex;align-items:center;gap:12px;margin-bottom:18px}
.sec-kicker::before{content:"";width:30px;height:1px;background:var(--accent-dim)}
h2.sec-title{font-family:var(--serif);font-weight:500;font-size:clamp(1.9rem,3.4vw,2.7rem);line-height:1.1;letter-spacing:-.01em}
.sec-head p{margin-top:18px;color:var(--txt-body);font-size:1.04rem}

/* ---------- METHOD / FASI ---------- */
.method{background:linear-gradient(180deg,#efe9dc,#f4f0e7)}
.phases{display:grid;grid-template-columns:repeat(3,1fr);margin-top:8px;border-top:1px solid var(--paper-line)}
.phase{padding:40px 30px;border-right:1px dashed var(--paper-line);position:relative}
.phase:last-child{border-right:0}
.phase .node{width:44px;height:44px;border-radius:50%;border:1.5px solid var(--accent);display:grid;place-items:center;position:relative;margin-bottom:22px;background:var(--paper)}
.phase .node::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
.phase .node .ring{position:absolute;inset:-7px;border:1px solid var(--accent);border-radius:50%;opacity:.35}
.phase .tag{font-family:var(--mono);font-size:.68rem;color:var(--accent-dim);letter-spacing:.14em}
.phase h4{font-family:var(--serif);font-weight:600;font-size:1.25rem;margin:6px 0 12px}
.phase p{color:var(--txt-body);font-size:.92rem}
.method-foot{margin-top:46px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;padding-top:30px;border-top:1px solid var(--paper-line)}
.method-foot .bc{max-width:60ch}
.method-foot .bc strong{font-family:var(--serif);font-style:italic;font-weight:600}

/* ---------- DIAGRAMMA SVG --------- */
.draw{stroke-dasharray:var(--len);stroke-dashoffset:var(--len);animation:draw-line .9s linear forwards}
.draw.t1{--len:160}
.draw.t2{--len:160}
.draw.t3{--len:118}
.draw:nth-of-type(1){animation-delay:.3s}
.draw:nth-of-type(2){animation-delay:.8s}
.draw:nth-of-type(3){animation-delay:1.7s}
@keyframes draw-line{to{stroke-dashoffset:0}}
.impact{opacity:0;animation:impact-in .6s var(--ease) 1.7s forwards}
@keyframes impact-in{to{opacity:1}}
@media (prefers-reduced-motion:reduce){
  .draw{animation:none;stroke-dashoffset:0}
  .impact{animation:none;opacity:1}
}
.diag-label{font-family:var(--mono);font-size:8px;fill:var(--steel);letter-spacing:.12em}

/* ---------- PROSE / blocchi di contenuto ---------- */
.prose{max-width:64ch}
.prose h3{font-family:var(--serif);font-weight:600;font-size:1.6rem;margin:0 0 16px;line-height:1.2}
.prose p{color:var(--txt-body);margin-bottom:18px;font-size:1.02rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.split.alt{grid-template-columns:1fr 1fr}
.def-card{background:#fff;border:1px solid var(--paper-line);border-left:3px solid var(--accent);border-radius:4px;padding:32px}
.def-card .mono{color:var(--accent-dim);margin-bottom:14px}
.def-card p{color:var(--txt-body);margin:0}
.steps{counter-reset:step;list-style:none;margin-top:10px}
.steps li{position:relative;padding:0 0 26px 56px;border-left:1px dashed var(--paper-line);margin-left:18px}
.steps li:last-child{border-left-color:transparent;padding-bottom:0}
.steps li::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;left:-18px;top:-4px;width:36px;height:36px;background:var(--paper);border:1.5px solid var(--accent);border-radius:50%;display:grid;place-items:center;font-family:var(--mono);font-size:.74rem;color:var(--accent-dim)}
.steps li h5{font-family:var(--serif);font-weight:600;font-size:1.1rem;margin-bottom:6px}
.steps li p{color:var(--txt-body);font-size:.95rem;margin:0}

/* ---------- MONOGRAMMA ---------- */
.monogram{aspect-ratio:4/5;border:1px solid var(--paper-line);border-radius:4px;background:#fff;position:relative;display:grid;place-items:center;overflow:hidden}
.monogram .grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--paper-line) 1px,transparent 1px),linear-gradient(90deg,var(--paper-line) 1px,transparent 1px);background-size:40px 40px;opacity:.5}
.monogram .init{font-family:var(--serif);font-size:7rem;font-weight:600;color:var(--ink);position:relative}
.monogram .cap{position:absolute;bottom:20px;left:20px;font-family:var(--mono);font-size:.66rem;letter-spacing:.12em;color:var(--txt-body)}

/* ---------- CV ---------- */
.cv{list-style:none}
.cv li{position:relative;padding:0 0 20px 30px;color:var(--txt-body);font-size:.97rem;line-height:1.5}
.cv li::before{content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border:1.5px solid var(--accent);border-radius:50%}
.cv li b{color:var(--ink);font-weight:600}
.cv li em{font-style:italic;color:var(--ink)}

/* ---------- CTA ---------- */
.cta{background:var(--accent);color:#fff;text-align:center;position:relative;overflow:hidden}
.cta .blueprint{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.1) 1px,transparent 1px);background-size:56px 56px;opacity:.5}
.cta-inner{position:relative}
.cta h2{font-family:var(--serif);font-weight:500;font-size:clamp(2rem,4vw,3rem);line-height:1.1;margin-bottom:22px;max-width:20ch;margin-inline:auto}
.cta p{max-width:48ch;margin:0 auto 36px;opacity:.92}
.cta .btn-dark{background:var(--ink)}

/* ---------- FOOTER ---------- */
footer{background:var(--ink);color:var(--txt-on-ink);padding:clamp(48px,7vw,74px) 0 34px;border-top:1px solid var(--steel-line)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:50px;border-bottom:1px solid var(--steel-line)}
.foot-col h5{font-family:var(--mono);font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--steel);margin-bottom:18px}
.foot-col p,.foot-col a{display:block;color:var(--txt-on-ink-mut);font-size:.9rem;margin-bottom:9px;transition:color .2s}
.foot-col a:hover{color:var(--accent)}
.foot-col .addr b{color:var(--txt-on-ink);font-weight:600;font-family:var(--serif)}
.foot-bot{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-top:26px;flex-wrap:wrap}
.foot-bot p{color:#5c6678;font-size:.78rem;font-family:var(--mono);letter-spacing:.04em}

/* ---------- REVEAL ---------- */
[data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
[data-reveal].in{opacity:1;transform:none}

/* ---------- RESPONSIVE ---------- */
@media(max-width:900px){
  .phases{grid-template-columns:1fr}
  .phase{border-right:0;border-bottom:1px dashed var(--paper-line);padding:30px 0}
  .phase:last-child{border-bottom:0}
  .foot-grid{grid-template-columns:1fr 1fr}
  nav ul{position:fixed;inset:0 0 0 auto;width:75%;max-width:320px;background:var(--ink-2);flex-direction:column;justify-content:center;padding:40px;gap:8px;transform:translateX(100%);transition:transform .4s var(--ease);border-left:1px solid var(--steel-line)}
  nav ul.open{transform:none}
  nav ul a{display:block;padding:12px 4px;font-size:1rem}
  nav a::after{bottom:6px}
  nav .btn{display:none}
  .menu-toggle{display:flex}
  html.menu-open header{backdrop-filter:none;-webkit-backdrop-filter:none}
  .btn{min-height:44px}
  .foot-col a{padding:6px 0}
}
@media(max-width:640px){
  .split{grid-template-columns:1fr;gap:36px}
}
@media(max-width:560px){
  .foot-grid{grid-template-columns:1fr}
}