/* =========================================================
   DACSO — "Un solo filo"   ·   sistema visivo 2026 (scuro)
   Tipi: Inter Tight (testo e titoli) · IBM Plex Mono (etichette)
   ========================================================= */
:root{
  /* tema scuro: "paper" = fondo, "ink" = testo */
  --paper:#050506; --paper-2:#0b0b0d; --white:#0d0e11;
  --ink:#ededeb; --ink-2:#b4b4b0; --mute:#7c7c7c; --rule:#1d1d20;
  --night:#000; --night-2:#0b0b0d; --night-rule:#1d1d20; --night-mute:#8a8a8a;
  --c1:#22d3ee; --c2:#2563eb; --thread:linear-gradient(180deg,var(--c1),var(--c2));
  --sans:"Inter Tight","Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --wrap:1240px; --gut:clamp(16px,4vw,48px); --ease:cubic-bezier(.16,1,.3,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px;-webkit-text-size-adjust:100%}
body{background:var(--paper);color:var(--ink);font:400 17px/1.6 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font:inherit}
::selection{background:var(--c1);color:var(--ink)}
:focus-visible{outline:2px solid var(--c2);outline-offset:3px}
.wrap{width:min(100% - 2*var(--gut),var(--wrap));margin-inline:auto}
.skip{position:absolute;left:-999px;top:10px;z-index:200;background:var(--ink);color:#fff;padding:10px 16px}
.skip:focus{left:10px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- tipografia ---------- */
.label{font:500 12px/1.4 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--mute)}
.label b{font-weight:500;color:var(--ink)}
.display{font-weight:600;font-size:clamp(44px,8.2vw,128px);line-height:.94;letter-spacing:-.045em}
.h2{font-weight:600;font-size:clamp(34px,5vw,68px);line-height:1;letter-spacing:-.035em}
.h3{font-weight:600;font-size:clamp(22px,2vw,28px);line-height:1.15;letter-spacing:-.02em}
.lead{font-size:clamp(18px,1.5vw,21px);line-height:1.55;color:var(--ink-2);max-width:56ch}
.muted{color:var(--mute)}
.grad{background:linear-gradient(100deg,var(--c1),var(--c2) 70%);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- pulsanti e link ---------- */
.btn{position:relative;display:inline-flex;align-items:center;gap:12px;height:54px;padding:0 26px;border-radius:0;font-weight:600;font-size:16px;letter-spacing:-.01em;overflow:hidden;isolation:isolate;border:1px solid currentColor;transition:color .45s var(--ease),border-color .45s var(--ease)}
.btn::before{content:"";position:absolute;inset:0;z-index:-1;transform:translateY(101%);transition:transform .45s var(--ease)}
.btn:hover::before{transform:none}
.btn .ar{display:inline-block;transition:transform .45s var(--ease)}
.btn:hover .ar{transform:translateX(4px)}
.btn-solid{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-solid::before{background:var(--c2)}
.btn-solid:hover{border-color:var(--c2)}
.btn-line{color:var(--ink)}
.btn-line::before{background:var(--ink)}
.btn-line:hover{color:#fff}
.on-dark .btn-solid{background:#fff;color:var(--ink);border-color:#fff}
.on-dark .btn-solid::before{background:var(--c1)}
.on-dark .btn-line{color:#fff}
.on-dark .btn-line::before{background:#fff}
.on-dark .btn-line:hover{color:var(--ink)}
.ul{background:linear-gradient(currentColor,currentColor) 0 100%/0 1px no-repeat;transition:background-size .5s var(--ease)}
.ul:hover{background-size:100% 1px}

/* ---------- navigazione ---------- */
.nav{position:fixed;inset:0 0 auto;z-index:100;color:#fff;transition:background .4s,color .4s,transform .5s var(--ease)}
.nav.light{color:var(--ink);background:rgba(242,240,234,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--rule)}
.nav.hide{transform:translateY(-100%)}
.nav-in{display:flex;align-items:center;gap:32px;height:72px}
.logo{position:relative;width:128px;height:43px}
.logo img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;transition:opacity .3s}
.logo .l-ink{opacity:0}.nav.light .logo .l-ink{opacity:1}.nav.light .logo .l-white{opacity:0}
.menu{display:flex;gap:28px;margin-left:auto;font-size:15px;font-weight:500}
.menu details{position:relative}
.menu summary{list-style:none;cursor:pointer}
.menu summary::-webkit-details-marker{display:none}
.drop{position:absolute;top:calc(100% + 22px);left:-18px;width:320px;background:var(--white);color:var(--ink);border:1px solid var(--rule);padding:8px}
.drop a{display:grid;grid-template-columns:28px 1fr;gap:4px 10px;padding:12px 10px;font-weight:600}
.drop a:hover{background:var(--paper)}
.drop a span{font:500 11px/1.8 var(--mono);color:var(--mute)}
.drop a small{grid-column:2;font-weight:400;font-size:13px;color:var(--mute)}
.nav .btn{height:42px;padding:0 18px;font-size:14px}
.nav:not(.light) .btn-solid{background:#fff;color:var(--ink);border-color:#fff}
.burger{display:none;margin-left:auto;width:44px;height:44px;border:1px solid currentColor;background:none;color:inherit;cursor:pointer}
.burger i{display:block;width:18px;height:1.5px;margin:4px auto;background:currentColor;transition:transform .4s var(--ease)}
.sheet{position:fixed;inset:0;z-index:99;background:var(--night);color:#fff;padding:100px var(--gut) 40px;display:flex;flex-direction:column;gap:6px;transform:translateY(-100%);transition:transform .6s var(--ease);visibility:hidden}
.sheet.open{transform:none;visibility:visible}
.sheet a{font-weight:600;font-size:clamp(28px,8vw,40px);letter-spacing:-.03em;padding:6px 0;border-bottom:1px solid var(--night-rule)}
.sheet .label{margin-top:auto;color:var(--night-mute)}

/* ---------- il filo ---------- */
.thread{position:absolute;left:max(var(--gut),calc((100vw - var(--wrap))/2 - 56px));top:0;width:2px;pointer-events:none;z-index:2}
.thread .rail{position:absolute;inset:0;background:var(--rule)}
.thread .fill{position:absolute;inset:0 0 auto;height:100%;background:var(--thread);transform-origin:top;transform:scaleY(var(--p,0))}
.thread .tip{position:absolute;left:50%;top:calc(var(--p,0)*100%);width:10px;height:10px;margin:-5px 0 0 -5px;border-radius:50%;background:var(--c1);box-shadow:0 0 0 6px rgba(34,211,238,.18),0 0 24px var(--c1)}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100svh;background:var(--night);color:#fff;display:flex;flex-direction:column;justify-content:flex-end;padding:120px 0 clamp(40px,6vw,72px);overflow:hidden;isolation:isolate}
.hero .label{color:var(--night-mute)}
.hero .label b{color:#fff}
.hero-mark{position:absolute;z-index:-1;right:-6vw;top:50%;width:min(62vw,860px);transform:translateY(-54%);opacity:.95}
.hero-mark path{fill:none;stroke-width:1.2;vector-effect:non-scaling-stroke}
.hero-mark .m1{stroke:url(#gm)}
.hero-mark .m2{stroke:rgba(255,255,255,.14)}
.hero-noise{position:absolute;inset:0;z-index:-1;background:radial-gradient(60% 50% at 78% 45%,rgba(37,99,235,.28),transparent 70%),radial-gradient(40% 40% at 90% 20%,rgba(34,211,238,.14),transparent 70%)}
.hero h1{margin:26px 0 34px;max-width:13ch}
.hero .line{display:block;overflow:hidden;padding-bottom:.06em}
.hero .line>span{display:block}
.hero-foot{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:end;padding-top:34px;border-top:1px solid var(--night-rule)}
.hero-foot p{color:#c9d0db;font-size:clamp(17px,1.4vw,20px);max-width:48ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.scroll-hint{position:absolute;left:50%;bottom:18px;width:1px;height:44px;background:linear-gradient(var(--c1),transparent);animation:hint 2.4s var(--ease) infinite}
@keyframes hint{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- sezioni ---------- */
section{position:relative}
.sec{padding:clamp(88px,12vw,168px) 0}
.sec-head{display:grid;grid-template-columns:220px 1fr;gap:24px 48px;margin-bottom:clamp(48px,6vw,88px)}
.sec-head .h2{max-width:18ch}

/* manifesto */
.manifesto p{font-weight:500;font-size:clamp(28px,3.9vw,54px);line-height:1.14;letter-spacing:-.03em;max-width:22ch}
.manifesto .w{transition:color .35s}
.js .manifesto .w{color:#c3bdb0}
.manifesto .w.on{color:var(--ink)}
.manifesto .w.hl.on{color:var(--c2)}
.manifesto-sign{margin-top:48px;display:flex;gap:16px;align-items:center}
.manifesto-sign::before{content:"";width:48px;height:1px;background:var(--ink)}

/* il percorso (sticky) */
.path{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(32px,6vw,96px)}
.path-aside{position:sticky;top:120px;align-self:start;height:max-content}
.path-count{font:600 clamp(96px,14vw,200px)/.8 var(--sans);letter-spacing:-.06em;display:flex;overflow:hidden;height:.8em}
.path-count .digits{display:flex;flex-direction:column;transition:transform .8s var(--ease)}
.path-count .digits span{display:block;height:.8em}
.path-count .of{font:500 14px var(--mono);letter-spacing:.06em;color:var(--mute);align-self:flex-start;margin:.5em 0 0 12px}
.path-name{margin-top:28px;font-weight:600;font-size:clamp(26px,2.6vw,36px);letter-spacing:-.03em;min-height:1.2em}
.path-bar{margin-top:28px;display:grid;grid-template-columns:repeat(5,1fr);gap:6px}
.path-bar i{height:3px;background:var(--rule);transition:background .5s}
.path-bar i.on{background:var(--c2)}
.stage{padding:0 0 clamp(72px,9vw,120px);border-top:1px solid var(--ink)}
.stage:last-child{padding-bottom:0}
.stage .label{display:flex;justify-content:space-between;padding:16px 0 36px}
.stage h3{font-weight:600;font-size:clamp(30px,3.6vw,48px);line-height:1.02;letter-spacing:-.035em;max-width:16ch}
.stage p{margin-top:22px;color:var(--ink-2);max-width:52ch}
.stage ul{list-style:none;margin-top:30px;display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--rule)}
.stage li{padding:14px 0;border-bottom:1px solid var(--rule);font-weight:500;font-size:15px;display:flex;gap:10px}
.stage li::before{content:"→";color:var(--c2)}
.stage li:nth-child(odd){padding-right:16px}
.stage .more{display:inline-flex;gap:8px;margin-top:28px;font-weight:600;color:var(--c2)}

/* vetdesk */
.case{background:var(--night);color:#fff;overflow:hidden}
.case .label{color:var(--night-mute)}
.case .label b{color:#fff}
.case-top{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:end}
.case-top p{color:#c9d0db}
.quote{font-weight:500;font-size:clamp(22px,2.2vw,30px);line-height:1.25;letter-spacing:-.02em;color:#fff;max-width:26ch}
.stage3d{perspective:1600px;margin-top:clamp(56px,7vw,96px)}
.frame{transform-origin:50% 0;transform:rotateX(var(--rx,24deg)) scale(var(--sc,.9));transition:transform .1s linear;background:#0c1220;border:1px solid var(--night-rule);box-shadow:0 60px 120px -40px rgba(37,99,235,.45)}
.frame-bar{display:flex;align-items:center;gap:7px;height:36px;padding:0 14px;border-bottom:1px solid var(--night-rule)}
.frame-bar i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.18)}
.frame-bar span{margin-left:12px;font:500 11px var(--mono);color:var(--night-mute)}
.frame img{width:100%;aspect-ratio:1672/941;object-fit:cover;background:#0c1220}
.facts{display:grid;grid-template-columns:repeat(4,1fr);margin-top:clamp(48px,6vw,80px);border-top:1px solid var(--night-rule)}
.fact{padding:22px 22px 0 0}
.fact+.fact{padding-left:22px;border-left:1px solid var(--night-rule)}
.fact b{display:block;font-weight:600;font-size:18px;margin-bottom:6px}
.fact span{color:var(--night-mute);font-size:15px}
.case-cta{margin-top:48px}

/* principi */
.rules{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--ink)}
.rule{padding:34px 32px 40px 0;border-bottom:1px solid var(--rule);display:grid;grid-template-columns:56px 1fr;gap:4px 12px}
.rule:nth-child(even){padding-left:32px;border-left:1px solid var(--rule)}
.rule .label{padding-top:6px}
.rule h3{font-weight:600;font-size:clamp(21px,1.9vw,26px);line-height:1.2;letter-spacing:-.02em}
.rule p{grid-column:2;margin-top:10px;color:var(--ink-2);font-size:16px}

/* faq */
.faq{border-top:1px solid var(--ink)}
.faq details{border-bottom:1px solid var(--rule)}
.faq summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:56px 1fr 32px;align-items:baseline;padding:26px 0;font-weight:600;font-size:clamp(19px,1.8vw,24px);letter-spacing:-.02em}
.faq summary::-webkit-details-marker{display:none}
.faq summary .label{font-size:12px}
.faq summary::after{content:"";justify-self:end;width:14px;height:14px;background:linear-gradient(currentColor,currentColor) center/100% 1.5px no-repeat,linear-gradient(currentColor,currentColor) center/1.5px 100% no-repeat;transition:transform .5s var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .ans{display:grid;grid-template-columns:56px 1fr;padding:0 32px 28px 0}
.faq .ans p{grid-column:2;color:var(--ink-2);max-width:64ch}

/* contatti */
.contact{background:var(--white);border-top:1px solid var(--rule)}
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:clamp(40px,7vw,120px)}
.big-mail{display:inline-block;margin-top:36px;font-weight:600;font-size:clamp(24px,2.6vw,36px);letter-spacing:-.03em}
.form{display:grid;gap:0;border-top:1px solid var(--ink)}
.field{position:relative;border-bottom:1px solid var(--rule)}
.field input,.field textarea{width:100%;border:0;background:transparent;font:500 19px/1.4 var(--sans);color:var(--ink);padding:34px 0 14px;outline:none;resize:none}
.field textarea{min-height:150px}
.field label{position:absolute;left:0;top:30px;font-size:19px;color:var(--mute);pointer-events:none;transform-origin:left;transition:transform .35s var(--ease),color .35s}
.field input:focus+label,.field input:not(:placeholder-shown)+label,.field textarea:focus+label,.field textarea:not(:placeholder-shown)+label{transform:translateY(-20px) scale(.64);color:var(--ink)}
.field::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--thread);transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease)}
.field:focus-within::after{transform:none}
.two{display:grid;grid-template-columns:1fr 1fr;gap:0 32px}
.consent{display:flex;gap:12px;align-items:flex-start;padding:22px 0;font-size:14px;color:var(--ink-2)}
.consent input{margin-top:3px;accent-color:var(--c2);width:16px;height:16px}
.consent a{text-decoration:underline}
.form-foot{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;padding-top:8px}
.form-status{font-size:15px;font-weight:600}
.form-status.ok{color:#15803d}.form-status.err{color:#b42318}
.hp{position:absolute;left:-9999px}

/* footer */
.foot{background:var(--night);color:var(--night-mute);padding:clamp(72px,9vw,120px) 0 28px;overflow:hidden}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.foot .h2{color:#fff;max-width:14ch}
.foot h4{font:500 12px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:#fff;margin-bottom:16px}
.foot ul{list-style:none;display:grid;gap:10px;font-size:15px}
.foot a:hover{color:#fff}
.wordmark{margin-top:clamp(64px,8vw,120px);font-weight:700;font-size:clamp(90px,24vw,360px);line-height:.78;letter-spacing:-.07em;color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.16);user-select:none;white-space:nowrap}
.legal{margin-top:28px;padding-top:20px;border-top:1px solid var(--night-rule);display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between;font:400 12px/1.6 var(--mono)}

/* ---------- comparse ---------- */
.js .rv{opacity:0;transform:translateY(24px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.js .rv.in{opacity:1;transform:none}
.js .hero .line>span{transform:translateY(105%);transition:transform 1.2s var(--ease)}
.js .hero.go .line>span{transform:none}
.js .hero.go .line:nth-child(2)>span{transition-delay:.08s}
.js .hero.go .line:nth-child(3)>span{transition-delay:.16s}
.js .hero .fade{opacity:0;transition:opacity 1.2s var(--ease) .6s}
.js .hero.go .fade{opacity:1}
.js .hero-mark .draw{stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset 2.6s var(--ease) .2s}
.js .hero.go .hero-mark .draw{stroke-dashoffset:0}

/* ---------- chat (chiusa di default) ---------- */
.chat-launcher{position:fixed;right:20px;bottom:20px;z-index:90;display:flex;align-items:center;gap:10px;height:46px;padding:0 18px;border:1px solid var(--ink);background:var(--white);color:var(--ink);font:600 14px var(--sans);cursor:pointer;transition:background .3s,color .3s}
.chat-launcher:hover{background:var(--ink);color:#fff}
.chat-launcher-dot{width:7px;height:7px;border-radius:50%;background:#16a34a;box-shadow:0 0 0 4px rgba(22,163,74,.18)}
.chat-panel{position:fixed;right:20px;bottom:76px;z-index:95;width:min(380px,calc(100vw - 32px));height:min(580px,calc(100vh - 110px));display:none;grid-template-rows:auto 1fr auto;background:var(--white);color:var(--ink);border:1px solid var(--ink);box-shadow:0 40px 80px -30px rgba(10,15,26,.4)}
.chat-panel.open{display:grid}
.chat-head{display:flex;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--rule)}
.chat-head-mark{width:32px;height:32px;display:grid;place-items:center;background:var(--ink);color:#fff;font-weight:700}
.chat-head-copy{flex:1;display:grid}
.chat-head-copy strong{font-size:15px}
.chat-head-copy span{font:500 11px var(--mono);color:var(--mute)}
.chat-close{border:0;background:none;font-size:24px;line-height:1;color:var(--mute);cursor:pointer;padding:4px 8px}
.chat-messages{overflow:auto;padding:16px;display:flex;flex-direction:column;gap:10px;background:var(--paper)}
.chat-message{max-width:86%;padding:10px 13px;font-size:14.5px;line-height:1.5;white-space:pre-wrap}
.chat-message.bot{background:var(--white);border:1px solid var(--rule);align-self:flex-start}
.chat-message.user{background:var(--ink);color:#fff;align-self:flex-end}
.chat-quick{display:flex;flex-wrap:wrap;gap:6px}
.chat-quick button{border:1px solid var(--rule);background:var(--white);padding:6px 11px;font:500 13px var(--sans);color:var(--ink);cursor:pointer}
.chat-quick button:hover{border-color:var(--ink)}
.chat-footer{padding:12px;border-top:1px solid var(--rule);display:grid;gap:8px}
.chat-compose{display:flex;gap:8px}
.chat-compose input,.chat-lead input,.chat-lead textarea{flex:1;min-width:0;font:15px var(--sans);padding:10px 12px;border:1px solid var(--rule);background:#fff;color:var(--ink)}
.chat-send{width:42px;border:0;background:var(--ink);color:#fff;font-weight:700;cursor:pointer}
.chat-contact-toggle{border:0;background:none;font:600 13px var(--sans);color:var(--c2);cursor:pointer;text-align:left}
.chat-lead{display:none;gap:8px}
.chat-lead.open{display:grid}
.chat-lead-row{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.chat-lead textarea{min-height:70px}
.chat-lead button{height:40px;border:0;background:var(--ink);color:#fff;font:600 14px var(--sans);cursor:pointer}
.chat-consent{display:flex;gap:8px;font-size:12.5px;color:var(--ink-2)}
.chat-hp{position:absolute;left:-9999px}
.chat-status{font-size:13px}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .menu,.nav .btn{display:none}.burger{display:block}
  .hero-foot,.case-top,.contact-grid{grid-template-columns:1fr}
  .hero-cta{justify-content:flex-start}
  .sec-head{grid-template-columns:1fr}
  .path{grid-template-columns:1fr}
  .path-aside{position:relative;top:0}
  .path-count,.path-name,.path-bar{display:none}
  .facts{grid-template-columns:1fr 1fr}
  .fact:nth-child(3){padding-left:0;border-left:0}
  .fact{padding-bottom:22px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .thread{display:none}
}
@media (max-width:640px){
  body{font-size:16px}
  .hero{padding-top:100px}
  .hero-mark{width:120vw;right:-40vw;top:34%;opacity:.55}
  .stage ul,.rules,.two,.facts,.foot-grid{grid-template-columns:1fr}
  .stage li:nth-child(odd){padding-right:0}
  .rule,.rule:nth-child(even){padding:28px 0;border-left:0;grid-template-columns:40px 1fr}
  .fact,.fact+.fact{padding:18px 0;border-left:0;border-bottom:1px solid var(--night-rule)}
  .faq summary{grid-template-columns:36px 1fr 24px}
  .faq .ans{grid-template-columns:36px 1fr;padding-right:0}
  .hero-cta .btn,.form-foot .btn{width:100%;justify-content:space-between}
  .chat-launcher{right:12px;bottom:12px}.chat-panel{right:12px;bottom:66px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation:none!important;scroll-behavior:auto!important}
  .js .rv,.js .hero .line>span,.js .hero .fade{opacity:1;transform:none}
  .js .hero-mark .draw{stroke-dashoffset:0}
  .js .manifesto .w{color:var(--ink)}
  .frame{transform:none}
}

/* ===== tema scuro: correzioni ai componenti ===== */
body{background:var(--paper)}
.btn-solid,.on-dark .btn-solid{background:var(--ink);color:#050506;border-color:var(--ink)}
.btn-solid::before,.on-dark .btn-solid::before{background:var(--c1)}
.btn-solid:hover{border-color:var(--c1);color:#050506}
.btn-line,.on-dark .btn-line{color:var(--ink);border-color:#3a3a3e}
.btn-line::before,.on-dark .btn-line::before{background:var(--ink)}
.btn-line:hover,.on-dark .btn-line:hover{color:#050506;border-color:var(--ink)}
.nav{color:var(--ink)}
.nav.light{background:rgba(5,5,6,.78);color:var(--ink);box-shadow:0 1px 0 var(--rule)}
.logo .l-ink,.nav.light .logo .l-ink{opacity:0}.nav.light .logo .l-white{opacity:1}
.nav:not(.light) .btn-solid,.nav .btn-solid{background:transparent;color:var(--ink);border-color:#3a3a3e}
.nav .btn-solid::before{background:var(--ink)}
.nav .btn-solid:hover{color:#050506;border-color:var(--ink)}
.menu{font:500 12px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:#bdbdb9}
.menu a:hover,.menu summary:hover{color:#fff}
.drop{background:#0d0e11;color:var(--ink);border-color:var(--rule);box-shadow:0 30px 60px rgba(0,0,0,.6);text-transform:none;letter-spacing:0;font-family:var(--sans);font-size:15px}
.drop a:hover{background:#15161a}
.sheet{background:#050506}
.hero{background:#000}
.hero-noise{background:radial-gradient(55% 55% at 76% 46%,rgba(37,99,235,.22),transparent 70%),radial-gradient(30% 30% at 88% 22%,rgba(34,211,238,.12),transparent 70%),radial-gradient(120% 90% at 50% 120%,#000 40%,transparent 70%)}
.hero-foot p{color:#a9a9a5}
.js .manifesto .w{color:#7c7c7c}
.manifesto .w.on{color:var(--ink)}
.manifesto .w.hl.on{color:var(--c1)}
.manifesto-sign::before{background:var(--ink)}
.stage,.rules,.faq,.form{border-top-color:#3a3a3e}
.stage li::before,.stage .more{color:var(--c1)}
.path-bar i.on{background:var(--c1)}
.case{background:#000}
.contact{background:#08080a}
.field input,.field textarea{color:var(--ink)}
.field input:focus+label,.field input:not(:placeholder-shown)+label,.field textarea:focus+label,.field textarea:not(:placeholder-shown)+label{color:var(--ink)}
.consent input{accent-color:var(--c1)}
.form-status.ok{color:#4ade80}.form-status.err{color:#f87171}
.foot{background:#000}
.frame{background:#0b0b0d;box-shadow:0 80px 140px -50px rgba(37,99,235,.35),0 0 0 1px rgba(255,255,255,.04)}

/* prodotto: foto + schermata */
.case-media{display:grid;grid-template-columns:5fr 7fr;gap:clamp(16px,2vw,24px);margin-top:clamp(56px,7vw,96px);align-items:end}
.photo{position:relative;overflow:hidden;border:1px solid var(--rule);aspect-ratio:4/5}
.photo img{width:100%;height:100%;object-fit:cover;transform:scale(var(--ps,1.12));transition:transform .1s linear}
.photo figcaption{position:absolute;left:0;right:0;bottom:0;padding:22px;background:linear-gradient(transparent,rgba(0,0,0,.85));font:500 12px var(--mono);letter-spacing:.05em;text-transform:uppercase;color:#d0d0cc}
.case-media .stage3d{margin-top:0}

/* chat su scuro */
.chat-launcher{background:#0d0e11;color:var(--ink);border-color:#3a3a3e}
.chat-launcher:hover{background:var(--ink);color:#050506}
.chat-panel{background:#0d0e11;border-color:#3a3a3e;box-shadow:0 40px 80px -30px rgba(0,0,0,.8)}
.chat-head-mark{background:var(--c1);color:#050506}
.chat-messages{background:#08080a}
.chat-message.bot{background:#131418;border-color:var(--rule)}
.chat-message.user{background:var(--ink);color:#050506}
.chat-quick button{background:#131418;border-color:var(--rule);color:var(--ink)}
.chat-quick button:hover{border-color:var(--ink)}
.chat-compose input,.chat-lead input,.chat-lead textarea{background:#131418;border-color:var(--rule);color:var(--ink)}
.chat-send,.chat-lead button{background:var(--ink);color:#050506}
.chat-contact-toggle{color:var(--c1)}
@media (max-width:1020px){.case-media{grid-template-columns:1fr}.photo{aspect-ratio:4/3}}

.flow-zone{position:relative}
.flow-zone .thread{top:0}
.hero-mark{width:min(50vw,700px);right:-2vw;top:56%}
.foot .h2{font-size:clamp(30px,3.4vw,48px)}
.legal{padding-bottom:64px}
.manifesto p.label{font:500 12px/1.4 var(--mono);letter-spacing:.06em;max-width:none}

/* clienti */
.clients{border-bottom:1px solid var(--rule);background:#000}
.clients-in{display:grid;grid-template-columns:200px 1fr;gap:32px;align-items:center;min-height:120px;padding:24px 0}
.client-logos{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:clamp(16px,3vw,48px);align-items:center}
.client-logos img{width:100%;height:36px;object-fit:contain;filter:grayscale(1);opacity:.62;transition:opacity .3s}
.client-logos img.logo-white-bg{filter:grayscale(1) invert(1);mix-blend-mode:screen;opacity:.55}
.client-logos img:hover{opacity:1}

/* progetti */
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.pcard{position:relative;overflow:hidden;border:1px solid var(--rule);aspect-ratio:4/5;background:#0b0b0d}
.pcard img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease),filter .6s}
.pcard:hover img{transform:scale(1.05);filter:brightness(1.1)}
.pcard-t{position:absolute;inset:auto 0 0;padding:22px;background:linear-gradient(transparent,rgba(0,0,0,.92) 45%)}
.pcard-t h3{font-weight:600;font-size:22px;letter-spacing:-.02em;margin:8px 0 6px;color:#fff}
.pcard-t p{font-size:14px;line-height:1.45;color:#b4b4b0}
.others{margin-top:clamp(64px,8vw,104px)}
.others-head{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--rule);margin-bottom:20px}
.others-nav{display:flex;gap:8px}
.onav{width:44px;height:44px;border:1px solid #3a3a3e;background:none;color:var(--ink);cursor:pointer;transition:background .3s,color .3s}
.onav:hover{background:var(--ink);color:#050506}
.orail{display:grid;grid-auto-flow:column;grid-auto-columns:clamp(220px,20vw,280px);gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding-bottom:4px}
.orail::-webkit-scrollbar{display:none}
.ocard{position:relative;display:block;aspect-ratio:4/5;overflow:hidden;border:1px solid var(--rule);scroll-snap-align:start;background:#0b0b0d}
.ocard img{width:100%;height:100%;object-fit:cover;filter:grayscale(.35) brightness(.8);transition:transform 1s var(--ease),filter .5s}
.ocard:hover img{transform:scale(1.05);filter:none}
.ocard-t{position:absolute;inset:auto 0 0;padding:18px;display:grid;grid-template-columns:1fr auto;background:linear-gradient(transparent,rgba(0,0,0,.9) 50%)}
.ocard-t b{font-weight:600;font-size:17px;color:#fff}
.ocard-t small{grid-column:1;font:500 11px/1.6 var(--mono);text-transform:uppercase;letter-spacing:.05em;color:#8a8a8a}
.ocard-t i{grid-row:1/3;grid-column:2;align-self:end;font-style:normal;color:#fff}
@media (max-width:1020px){.pgrid{grid-template-columns:1fr 1fr}.clients-in{grid-template-columns:1fr}}
@media (max-width:640px){.client-logos{grid-template-columns:repeat(2,1fr)}.client-logos img:last-child{grid-column:1/-1;max-width:170px;justify-self:center}.orail{grid-auto-columns:72%}}