@property --ang { syntax: '<angle>'; initial-value: 0deg; inherits: false; }

:root{
  --bg:#0B0A0D; --bg2:#0E0B13;
  --surf:rgba(255,255,255,.04); --surf2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.08); --line2:rgba(255,255,255,.14);
  --tx:#F6F4F9; --mut:rgba(246,244,249,.64); --dim:rgba(246,244,249,.58);
  --amber:#F2A65A; --cold:#4FA8FF; --volt:#FFD43B; --clima:#B7FF54; --svc:var(--amber);
  --navy:#141B2E; --gold:#C9A55A;
  --f-h:'Sora',system-ui,sans-serif; --f-b:'Geist',system-ui,sans-serif; --f-m:'Geist Mono',ui-monospace,monospace;
  --pad:clamp(16px,4vw,48px); --max:1200px; --gap:24px;
  --sec:clamp(88px,11vw,152px);
  --r:18px; --hdr:68px;
  --ease:cubic-bezier(.22,.8,.24,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--hdr) + 12px)}
body{background:var(--bg);color:var(--tx);font:400 16px/1.6 var(--f-b);overflow-x:clip;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
[hidden]{display:none!important}
.mono{font-family:var(--f-m);font-size:12px;letter-spacing:.08em;text-transform:uppercase}
.wrap{width:100%;max-width:calc(var(--max) + var(--pad)*2);margin:0 auto;padding:0 var(--pad)}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--tx);color:var(--bg);padding:8px 12px;border-radius:8px}
.skip:focus{left:8px}

/* ---------- brand ---------- */
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{font:700 22px/1 var(--f-h);letter-spacing:.02em;color:#fff}
.brand-mark b{color:var(--gold);font-weight:700}
.brand-mark.big{font-size:44px}
.brand-pay{font:500 9.5px/1.25 var(--f-m);letter-spacing:.12em;text-transform:uppercase;color:var(--mut);padding-left:12px;border-left:1px solid var(--line2)}
.tbc,.tbc-inline{font-family:var(--f-m);font-style:normal;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--gold)}
.tbc{display:inline-block;padding:3px 8px;border:1px dashed rgba(201,165,90,.55);border-radius:6px}

/* ---------- header ---------- */
.top{position:fixed;inset:0 0 auto;z-index:50;height:var(--hdr);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;padding:0 var(--pad);
  background:linear-gradient(rgba(11,10,13,.82),rgba(11,10,13,.55));backdrop-filter:blur(14px) saturate(1.2);-webkit-backdrop-filter:blur(14px) saturate(1.2);border-bottom:1px solid var(--line)}
.top-cta{justify-self:end}
.svc-nav{display:flex;gap:4px;padding:4px;border:1px solid var(--line);border-radius:999px;background:var(--surf)}
.svc-pill{display:flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;font-size:13.5px;font-weight:500;color:var(--mut);transition:color .3s,background .3s,box-shadow .3s}
.svc-pill .mono{font-size:10.5px;color:var(--dim);transition:color .3s}
.svc-pill .lbl-s{display:none}
.svc-pill:hover{color:var(--tx)}
.svc-pill.on{color:#0B0A0D;background:var(--c);font-weight:600;box-shadow:0 0 0 1px var(--c),0 0 28px -4px var(--c)}
.svc-pill.on .mono{color:rgba(11,10,13,.7)}
.svc-pill.on::before{content:"";width:7px;height:7px;border-radius:50%;background:#0B0A0D}

/* ---------- buttons ---------- */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:999px;font:500 14.5px/1 var(--f-b);white-space:nowrap;transition:transform .35s var(--ease),background .3s,border-color .3s}
.btn-ghost{border:1px solid var(--line2);background:var(--surf);color:var(--tx)}
.btn-ghost:hover{background:var(--surf2);border-color:rgba(255,255,255,.24)}
/* Moving border */
.btn-border{padding:1px;background:conic-gradient(from var(--ang),transparent 0 62%,var(--amber) 76%,var(--gold) 84%,transparent 94%),var(--line2);animation:spin 4s linear infinite}
.btn-border>span{display:flex;align-items:center;gap:6px;height:100%;padding:0 20px;border-radius:999px;background:#17131c;color:var(--tx)}
.btn-border:hover>span{background:#1f1925}
.btn-lg{height:54px}.btn-lg>span{padding:0 28px;font-size:16px}
.btn-full{width:100%;height:50px}.btn-full>span{width:100%;justify-content:center}
.tbc-inline{margin-left:2px}
@keyframes spin{to{--ang:360deg}}

/* ============ WALK ============ */
.walk{position:relative;height:1300vh;background:var(--bg)}
.stage{position:sticky;top:0;height:100vh;height:100lvh;overflow:hidden}
#film{position:absolute;inset:0;width:100%;height:100%;display:block}
.scrim{position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(11,10,13,.86) 0%,rgba(11,10,13,.55) 26%,rgba(11,10,13,0) 52%),
             linear-gradient(0deg,rgba(11,10,13,.8) 0%,rgba(11,10,13,0) 26%),
             linear-gradient(180deg,rgba(11,10,13,.55) 0%,rgba(11,10,13,0) 18%)}
.spotlight{position:absolute;top:-40%;left:-10%;width:138%;height:169%;pointer-events:none;opacity:0;transition:opacity 1.2s}
.spotlight.on{animation:spot 2.2s var(--ease) .2s both}
@keyframes spot{from{opacity:0;transform:translate(-22%,-12%) scale(.6)}to{opacity:1;transform:translate(0,0) scale(1)}}

.intro{position:absolute;left:var(--pad);right:var(--pad);top:50%;transform:translateY(-44%);max-width:760px;margin-left:calc(var(--pad) + 40px);transition:opacity .5s,filter .5s,transform .5s}
.intro.out{opacity:0;filter:blur(8px);transform:translateY(-50%);pointer-events:none}
.eyebrow{color:var(--amber);margin-bottom:18px}
.intro-title{font:600 clamp(40px,6.2vw,88px)/1.02 var(--f-h);letter-spacing:-.035em;max-width:11ch}
.intro-sub{margin-top:24px;max-width:46ch;color:var(--mut);font-size:clamp(16px,1.3vw,18px)}
.scroll-hint{margin-top:40px;display:flex;align-items:center;gap:12px;color:var(--dim)}
.scroll-hint i{width:1px;height:36px;background:linear-gradient(var(--amber),transparent);animation:hint 1.8s ease-in-out infinite}
@keyframes hint{0%,100%{transform:scaleY(.4);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}}

/* blur text */
[data-blur] .w{display:inline-block;white-space:nowrap}
[data-blur] .c{display:inline-block;opacity:0;filter:blur(10px);transform:translateY(.25em);transition:opacity .7s var(--ease),filter .7s var(--ease),transform .7s var(--ease);transition-delay:calc(var(--i)*22ms)}
[data-blur].in .c{opacity:1;filter:none;transform:none}

/* tracing beam */
.beam{position:absolute;left:var(--pad);top:calc(var(--hdr) + 40px);bottom:96px;width:16px;opacity:0;transition:opacity .6s}
.beam.on{opacity:1}
.beam-track{position:absolute;left:7px;top:0;bottom:0;width:2px;border-radius:2px;background:var(--line)}
.beam-fill{position:absolute;inset:0 0 auto;height:0;border-radius:2px;background:linear-gradient(180deg,var(--amber),var(--cold) 55%,var(--volt) 75%,var(--amber));background-size:100% var(--h,100%);box-shadow:0 0 12px rgba(242,166,90,.5)}
.beam-dots{position:absolute;inset:0}
.beam-dots i{position:absolute;left:3px;width:10px;height:10px;border-radius:50%;background:var(--bg);border:1px solid var(--line2);transform:translateY(-50%);transition:background .3s,border-color .3s,box-shadow .3s}
.beam-dots i.past{background:var(--amber);border-color:var(--amber)}
.beam-dots i.cur{background:#fff;border-color:#fff;box-shadow:0 0 0 4px rgba(242,166,90,.25),0 0 16px var(--amber)}

/* chapters: sticky scroll reveal */
.chapters{position:absolute;left:calc(var(--pad) + 44px);bottom:120px;width:min(440px,40vw);opacity:0;transition:opacity .5s;pointer-events:none}
.chapters.on{opacity:1}
.chapters.on .ch-cta,.chapters.on .legend{pointer-events:auto}
.ch-rail{height:120px;position:relative;overflow:hidden;margin-bottom:20px;-webkit-mask:linear-gradient(transparent,#000 30%,#000 70%,transparent);mask:linear-gradient(transparent,#000 30%,#000 70%,transparent)}
.ch-rail .ri{position:absolute;left:0;right:0;top:50%;height:24px;display:flex;align-items:center;gap:12px;font:500 13px/1 var(--f-b);color:var(--dim);transition:transform .6s var(--ease),opacity .6s,color .4s}
.ch-rail .ri .mono{font-size:10.5px;width:22px}
.ch-rail .ri.cur{color:var(--tx)}
.ch-rail .ri.cur .mono{color:var(--amber)}
.ch-kicker{color:var(--amber);margin-bottom:10px;min-height:1.2em}
.ch-title{font:600 clamp(30px,3.6vw,52px)/1.04 var(--f-h);letter-spacing:-.03em;min-height:1.04em}
.ch-text{margin-top:14px;color:var(--mut);font-size:17px;max-width:38ch;min-height:1.6em;transition:opacity .5s,filter .5s}
.ch-text.fade{opacity:0;filter:blur(6px)}
.legend{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:18px}
.legend li{display:flex;align-items:center;gap:8px;font:500 13px/1 var(--f-b);color:var(--tx)}
.legend i,.dots-l i{width:9px;height:9px;border-radius:50%;background:var(--d);box-shadow:0 0 10px var(--d)}
.ch-cta{margin-top:22px}
.chapters.modelmode{bottom:auto;top:calc(var(--hdr) + 26px)}
.chapters.modelmode .ch-rail,.chapters.modelmode .ch-text,.chapters.modelmode .ch-cta{display:none}
.chapters.modelmode .ch-title{font-size:clamp(24px,2.4vw,34px)}

/* hotspots */
.hotspots{position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .45s}
.hotspots.on{opacity:1}
.hs{position:absolute;width:30px;height:30px;margin:-15px 0 0 -15px;border-radius:50%;display:grid;place-items:center;font:600 13px/1 var(--f-m);color:#0B0A0D;background:var(--tx);box-shadow:0 0 0 4px rgba(11,10,13,.35),0 6px 18px rgba(0,0,0,.4);pointer-events:auto;transition:transform .3s var(--ease),background .3s}
.hs::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:1px solid rgba(246,244,249,.6);animation:ping 2.4s ease-out infinite}
@keyframes ping{from{transform:scale(.8);opacity:1}to{transform:scale(1.6);opacity:0}}
.hs .tip{position:absolute;left:50%;bottom:calc(100% + 10px);transform:translateX(-50%) translateY(4px);white-space:nowrap;padding:6px 10px;border-radius:8px;background:rgba(14,11,19,.92);border:1px solid var(--line2);color:var(--tx);font:500 12.5px/1 var(--f-b);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s}
.hs:hover,.hs.hi{transform:scale(1.15);background:var(--amber)}
.hs:hover .tip,.hs.hi .tip{opacity:1;transform:translateX(-50%)}
.models{position:absolute;left:calc(var(--pad) + 44px);right:var(--pad);bottom:84px;max-width:1080px;padding:16px 18px;display:grid;grid-template-columns:220px 1fr;gap:6px 28px;align-items:center;border-radius:var(--r);background:rgba(14,11,19,.78);border:1px solid var(--line2);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .45s,transform .45s var(--ease),visibility .45s}
.models.on{opacity:1;visibility:visible;transform:none}
.models-head{display:flex;justify-content:space-between;align-items:center;grid-column:1;grid-row:1}
.models-t{grid-column:1;grid-row:2}
.parts{grid-column:2;grid-row:1/3;grid-template-columns:repeat(4,1fr)}
.models-k{color:var(--amber)}
.models-t{font:600 18px/1.25 var(--f-h);letter-spacing:-.01em}
.arrows{display:flex;gap:6px}
.arrow{width:38px;height:38px;border-radius:50%;border:1px solid var(--line2);background:var(--surf);font:400 22px/1 var(--f-b);display:grid;place-items:center;padding-bottom:3px;transition:background .25s,border-color .25s,opacity .25s}
.arrow:hover:not(:disabled){background:var(--amber);color:var(--bg);border-color:var(--amber)}
.arrow:disabled{opacity:.3;cursor:default}
.parts{display:grid;gap:2px 8px}
.parts li{display:flex;gap:10px;align-items:center;padding:5px 6px;border-radius:8px;font-size:13.5px;color:var(--mut);cursor:default;transition:background .2s,color .2s}
.parts li b{flex:none;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;background:var(--surf2);font:500 11px/1 var(--f-m);color:var(--tx)}
.parts li:hover,.parts li.hi{background:var(--surf2);color:var(--tx)}
.parts li:hover b,.parts li.hi b{background:var(--amber);color:var(--bg)}

/* finale */
.finale{position:absolute;left:50%;bottom:120px;transform:translateX(-50%);text-align:center;opacity:0;pointer-events:none;transition:opacity .6s;width:min(92vw,720px)}
.finale.on{opacity:1;pointer-events:auto}
.finale-t{font:600 clamp(28px,4vw,56px)/1.05 var(--f-h);letter-spacing:-.03em;margin-bottom:26px}

/* progress */
.progress{position:absolute;left:var(--pad);right:var(--pad);bottom:28px}
.progress-bar{height:2px;background:var(--line);border-radius:2px;overflow:hidden}
.progress-bar i{display:block;height:100%;width:100%;transform-origin:left;transform:scaleX(0);background:linear-gradient(90deg,var(--amber),var(--gold))}
.progress-l{display:flex;gap:10px;margin-top:12px;color:var(--mut)}
.progress-l .sep{color:var(--dim)}
#progIdx{color:var(--amber)}
.loading{position:absolute;right:var(--pad);bottom:28px;color:var(--dim);transition:opacity .5s}
.loading.done{opacity:0}

/* ============ SECTIONS ============ */
.sec{position:relative;padding:var(--sec) 0;border-top:1px solid var(--line)}
.sec-head{max-width:720px;margin-bottom:56px}
.sec-head.split{max-width:none;display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap);align-items:end}
.sec-head.split>div{grid-column:1/8}
.sec-head.split>.lead{grid-column:8/13}
.h2{font:600 clamp(32px,4.2vw,56px)/1.05 var(--f-h);letter-spacing:-.032em}
.h3{font:600 26px/1.15 var(--f-h);letter-spacing:-.02em}
.h4{font:600 19px/1.25 var(--f-h);letter-spacing:-.01em}
.lead{margin-top:18px;color:var(--mut);font-size:17px;max-width:52ch}
.sec-head.split .lead{margin-top:0}
.lamp{position:relative}
.lamp::before{content:"";position:absolute;left:-10%;top:-90px;width:min(620px,100%);height:220px;background:radial-gradient(50% 50% at 50% 50%,rgba(242,166,90,.16),transparent 70%);pointer-events:none;z-index:-1}
.card{position:relative;border-radius:var(--r);background:var(--surf);border:1px solid var(--line);overflow:hidden}

/* background beams */
.bg-beams{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;opacity:.5}
.bg-beams path{fill:none;stroke:rgba(255,255,255,.035);stroke-width:1}
.bg-beams path.run{stroke:url(#bg1);stroke-width:1.2;stroke-dasharray:180 1400;animation:beam 9s linear infinite}
.bg-beams path.r2{animation-duration:12s;animation-delay:-4s}
@keyframes beam{from{stroke-dashoffset:1580}to{stroke-dashoffset:0}}
.services .wrap{position:relative}

/* services grid */
.svc-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap)}
.svc{display:flex;flex-direction:column;transform-style:preserve-3d;transition:transform .5s var(--ease),border-color .3s}
.svc:hover{border-color:color-mix(in srgb,var(--c) 40%,transparent)}
#climatizzazione{grid-column:1/8;grid-row:1/3}
#idraulici{grid-column:8/13}
#elettrici{grid-column:8/13}
#ristrutturazione{grid-column:1/13;flex-direction:row}
.svc-fig{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line)}
.svc-fig img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.svc:hover .svc-fig img{transform:scale(1.04)}
#climatizzazione .svc-fig{aspect-ratio:16/10}
#idraulici .svc-fig,#elettrici .svc-fig{aspect-ratio:21/8}
#ristrutturazione .svc-fig{flex:0 0 41.66%;aspect-ratio:auto;min-height:240px;border-bottom:0;border-right:1px solid var(--line)}
.svc-body{padding:26px 28px 28px;display:flex;flex-direction:column;gap:12px;flex:1}
.svc-body>p:not(.svc-n){color:var(--mut);max-width:56ch}
.svc-n{color:var(--c)}
#climatizzazione .h3{font-size:34px}
.ticks{display:grid;gap:8px;margin-top:4px}
.ticks li{position:relative;padding-left:22px;font-size:15px}
.ticks li::before{content:"";position:absolute;left:0;top:.62em;width:12px;height:1px;background:var(--amber)}
.dots-l{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:14px}
.dots-l li{display:flex;align-items:center;gap:8px}
.svc-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto;padding-top:10px}
.glare{position:absolute;inset:0;pointer-events:none;z-index:2;opacity:0;transition:opacity .4s;background:radial-gradient(420px circle at var(--gx,50%) var(--gy,50%),rgba(255,255,255,.09),transparent 45%)}
.svc:hover .glare{opacity:1}
.svc.flash{animation:flash 1.6s var(--ease)}
@keyframes flash{0%{box-shadow:0 0 0 0 var(--c)}30%{box-shadow:0 0 0 2px var(--c),0 0 60px -10px var(--c)}100%{box-shadow:0 0 0 0 transparent}}

/* story */
.story{background:linear-gradient(180deg,var(--bg),var(--bg2))}
.story-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap);align-items:center}
.story-fig{grid-column:1/6;position:relative;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);aspect-ratio:4/5;background:var(--navy)}
.story-fig img{width:100%;height:100%;object-fit:cover;object-position:50% 38%}
.story-fig figcaption{position:absolute;left:14px;bottom:14px;padding:6px 10px;border-radius:8px;background:rgba(11,10,13,.7);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);font-size:10.5px;color:var(--tx)}
.story-body{grid-column:7/13}
.story-body>p:not(.eyebrow){color:var(--mut);margin-top:16px;max-width:52ch;font-size:17px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0 8px}
.tags li{padding:7px 12px;border-radius:999px;border:1px solid rgba(201,165,90,.4);color:var(--gold);background:rgba(20,27,46,.6);font-size:11px}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.facts dt{color:var(--dim);font-size:10.5px;margin-bottom:8px}
.contact .facts{grid-template-columns:repeat(2,1fr)}

/* project */
.proj-grid{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:minmax(150px,auto);gap:var(--gap)}
.proj-fig{grid-column:1/7;grid-row:1/3}
.proj-fig img{width:100%;height:100%;object-fit:cover}
.stat{grid-column:span 2;padding:22px;display:flex;flex-direction:column;justify-content:space-between}
.stat-n{font:600 clamp(30px,2.8vw,42px)/1 var(--f-h);letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.stat-n small{font-size:.42em;color:var(--mut);margin-left:4px;letter-spacing:0}
.stat-l{color:var(--mut);font-size:11px}
.proj-list{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);margin-top:var(--gap);border-top:1px solid var(--line);padding-top:24px}
.proj-list li{font-size:15px;color:var(--tx)}
.proj-list .mono{display:block;color:var(--amber);font-size:10.5px;margin-bottom:8px}

/* process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);position:relative;padding-top:36px}
.steps::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--line)}
.steps::after{content:"";position:absolute;left:0;top:0;height:2px;width:100%;transform-origin:left;transform:scaleX(var(--p,0));background:linear-gradient(90deg,var(--amber),var(--cold),var(--volt));transition:transform 1.6s var(--ease)}
.steps.in{--p:1}
.steps li{position:relative}
.steps li::before{content:"";position:absolute;top:-41px;left:0;width:12px;height:12px;border-radius:50%;background:var(--bg);border:1px solid var(--line2)}
.steps.in li::before{background:var(--amber);border-color:var(--amber);transition:background .3s calc(var(--k)*.35s + .2s),border-color .3s calc(var(--k)*.35s + .2s)}
.step-n{color:var(--amber);display:block;margin-bottom:12px}
.steps p{color:var(--mut);margin-top:8px;font-size:15px;max-width:30ch}

/* reviews */
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.rev{padding:26px;border-radius:var(--r);border:1px dashed var(--line2);background:repeating-linear-gradient(135deg,transparent 0 12px,rgba(255,255,255,.012) 12px 24px);display:flex;flex-direction:column;gap:14px;min-height:220px}
.rev p:not(.rev-who){color:var(--mut)}
.rev-who{margin-top:auto;color:var(--dim);font-size:10.5px}
.tag-tbc{align-self:flex-start;padding:5px 10px;border-radius:999px;border:1px dashed rgba(201,165,90,.6);color:var(--gold);font-size:10.5px}

/* contact */
.contact-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap);align-items:start}
.contact-body{grid-column:1/6}
.form{grid-column:7/13;padding:28px;display:grid;gap:16px}
.contact-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.field{display:grid;gap:8px}
.field label{font:500 12px/1 var(--f-m);letter-spacing:.06em;text-transform:uppercase;color:var(--mut)}
.field input,.field select,.field textarea{width:100%;font:400 16px/1.4 var(--f-b);color:var(--tx);background:rgba(255,255,255,.03);border:1px solid var(--line2);border-radius:12px;padding:12px 14px;transition:border-color .2s,background .2s}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--mut) 50%),linear-gradient(135deg,var(--mut) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 15px) 50%;background-size:5px 5px;background-repeat:no-repeat}
.field select option{background:#17131c}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--amber);background:rgba(255,255,255,.05)}
.form-msg{color:var(--gold);padding:12px 14px;border-radius:12px;border:1px dashed rgba(201,165,90,.6);text-transform:none;letter-spacing:.02em;font-size:13px}

/* footer */
.foot{border-top:1px solid var(--line);padding:56px 0 48px}
.foot-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap);align-items:start}
.foot-grid>div{grid-column:1/5}
.foot-pay{color:var(--mut);margin-top:10px;font-size:10.5px}
.foot-nav{grid-column:5/9;display:grid;gap:8px;font-size:14.5px;color:var(--mut)}
.foot-nav a:hover{color:var(--tx)}
.foot-legal{grid-column:9/13;color:var(--dim);font-size:13.5px;line-height:1.7}

.mbar{display:none}

/* ============ TABLET ============ */
@media (max-width:1080px){
  .svc-pill .lbl{display:none}.svc-pill .lbl-s{display:inline}
  #climatizzazione{grid-column:1/13;grid-row:auto}
  #idraulici{grid-column:1/7}#elettrici{grid-column:7/13}
  .proj-fig{grid-column:1/13;grid-row:auto;aspect-ratio:16/8}
  .stat{grid-column:span 4}
  .proj-list{grid-template-columns:repeat(2,1fr)}
}

/* ============ PHONE ============ */
@media (max-width:760px){
  :root{--hdr:104px;--gap:16px}
  .top{grid-template-columns:1fr auto;grid-template-rows:56px 48px;row-gap:0;height:var(--hdr);padding:0 16px}
  .top-cta{display:none}
  .brand-pay{font-size:8.5px}
  .svc-nav{grid-column:1/-1;grid-row:2;justify-self:stretch;margin-bottom:8px}
  .svc-pill{flex:1;justify-content:center;padding:7px 6px;font-size:13px}
  .walk{height:1200vh}
  .scrim{background:linear-gradient(180deg,rgba(11,10,13,0) 40%,rgba(11,10,13,.6) 56%,rgba(11,10,13,.92) 70%)}
  .spotlight{top:-20%;left:-60%;width:240%;height:120%}
  .intro{left:16px;right:16px;margin:0;top:auto;bottom:150px;transform:none}
  .intro.out{transform:translateY(-12px)}
  .intro-title{font-size:40px}
  .intro-sub{font-size:15.5px;margin-top:16px}
  .scroll-hint{margin-top:22px}
  .beam{display:none}
  .chapters{left:16px;right:16px;width:auto;bottom:130px}
  .ch-rail{display:none}
  .ch-title{font-size:30px}
  .ch-text{font-size:15.5px;margin-top:10px}
  .legend{margin-top:12px}
  .ch-cta{margin-top:16px;height:40px}
  .chapters.modelmode .ch-text,.chapters.modelmode .ch-cta{display:none}
  .models{left:16px;right:16px;width:auto;bottom:120px;padding:14px;display:block}
  .models-t{font-size:16px;margin:6px 0 8px}
  .parts{grid-template-columns:1fr 1fr;gap:0 8px}
  .parts li{font-size:12px;padding:4px 2px;gap:6px;line-height:1.2}
  .parts li b{width:18px;height:18px;font-size:10px}
  .chapters.modelmode{bottom:auto;top:calc(var(--hdr) + 8px)}
  .chapters.modelmode .ch-title{font-size:22px}
  .chapters.modelmode .ch-kicker{margin-bottom:4px}
  .hs{width:24px;height:24px;margin:-12px 0 0 -12px;font-size:11px}
  .hs .tip{display:none}
  .finale{bottom:130px}
  .progress{bottom:84px;left:16px;right:16px}
  .progress-l{margin-top:8px;font-size:10.5px}
  .hide-s{display:none}
  .loading{bottom:84px;right:16px;font-size:10px}

  .sec-head{margin-bottom:36px}
  .sec-head.split{display:block}
  .sec-head.split .lead{margin-top:16px}
  .svc-grid{display:flex;flex-direction:column}
  #ristrutturazione{flex-direction:column}
  #ristrutturazione .svc-fig{flex:none;aspect-ratio:16/9;min-height:0;border-right:0;border-bottom:1px solid var(--line)}
  #idraulici .svc-fig,#elettrici .svc-fig{aspect-ratio:16/9}
  .svc-body{padding:20px}
  #climatizzazione .h3{font-size:28px}
  .story-grid{display:flex;flex-direction:column;align-items:stretch;gap:32px}
  .story-fig{aspect-ratio:4/4.6}
  .facts{grid-template-columns:1fr 1fr}
  .proj-fig{aspect-ratio:16/10}
  .stat{grid-column:span 6;padding:18px;min-height:120px}
  .proj-list{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;padding-top:0;padding-left:30px;gap:28px}
  .steps::before{left:5px;right:auto;top:6px;bottom:6px;width:2px;height:auto}
  .steps::after{left:5px;top:6px;bottom:6px;width:2px;height:auto;transform:scaleY(var(--p,0));transform-origin:top}
  .steps li::before{top:4px;left:-30px}
  .rev-grid{grid-template-columns:1fr}
  .rev{min-height:0}
  .contact-grid{display:flex;flex-direction:column;align-items:stretch;gap:36px}
  .form{padding:20px}
  .contact-actions .btn{width:100%}
  .contact-actions .btn-border>span{width:100%;justify-content:center}
  .foot{padding-bottom:110px}
  .foot-grid{display:flex;flex-direction:column;gap:28px}
  .mbar{display:grid;grid-template-columns:1fr 1.4fr;gap:8px;position:fixed;left:0;right:0;bottom:0;z-index:60;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(11,10,13,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid var(--line)}
  .mbar a{height:46px;border-radius:999px;display:grid;place-items:center;font:500 15px/1 var(--f-b)}
  .mbar-call{border:1px solid var(--line2);background:var(--surf)}
  .mbar-go{background:var(--amber);color:#0B0A0D;font-weight:600!important}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important;transition-delay:0s!important}
  [data-blur] .c{opacity:1;filter:none;transform:none}
  .bg-beams path.run{display:none}
  .btn-border{background:linear-gradient(90deg,var(--amber),var(--gold))}
}
.hs[data-n="8"] .tip,.hs[data-n="8"]:hover .tip,.hs[data-n="8"].hi .tip{left:auto;right:-8px;transform:none}

/* scelta 1 (19/10): servizi accesi a colore pieno come nella versione B */
.chapters.svcmode .ch-kicker,.chapters.svcmode~.progress #progIdx{color:var(--svc)}
.chapters.svcmode .ch-cta{background:var(--svc);color:#0B0A0D;border-color:var(--svc);font-weight:600;box-shadow:0 0 30px -6px var(--svc)}
.stage.svcmode .progress-bar i{background:var(--svc);box-shadow:0 0 12px var(--svc)}
.stage.svcmode #progIdx{color:var(--svc)}

/* scelta 4 (19/10): progetto con l'impianto della versione C, nei colori della A */
.fan{position:relative;height:clamp(240px,30vw,400px);margin:0 auto clamp(56px,7vw,96px);max-width:1000px}
.fan__c{position:absolute;left:50%;top:50%;width:clamp(150px,22vw,280px);aspect-ratio:3/4;margin:calc(clamp(150px,22vw,280px)*-2/3) 0 0 calc(clamp(150px,22vw,280px)/-2);border-radius:16px;overflow:hidden;background:var(--bg2);
  box-shadow:0 30px 60px -24px rgba(0,0,0,.8),0 0 0 1px var(--line2);transition:transform .9s var(--ease);
  transform:translateX(calc(var(--k)*var(--spread))) rotate(calc(var(--k)*var(--rot))) translateY(calc(var(--k2)*var(--drop)));--spread:58%;--rot:6deg;--drop:14px}
.fan__c img{width:100%;height:100%;object-fit:cover}
.fan__c figcaption{position:absolute;left:10px;bottom:10px;background:rgba(11,10,13,.72);backdrop-filter:blur(8px);border:1px solid var(--line2);border-radius:999px;font:500 10.5px/1 var(--f-m);letter-spacing:.06em;text-transform:uppercase;padding:6px 10px;color:var(--tx)}
.fan:hover .fan__c{--spread:66%;--rot:4deg}
.fan:not(.in) .fan__c{transform:translateY(30px)}
.proj{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap)}
.proj__l{grid-column:1/6}
.proj__l .h2{margin-top:12px}
.proj__p{color:var(--mut);margin-top:18px;max-width:42ch}
.proj__note{margin-top:22px;padding:14px 16px;border-radius:14px;background:var(--surf);border:1px solid var(--line);font-size:13.5px;color:var(--mut);max-width:46ch}
.proj__note b{color:var(--gold);font-weight:600}
.pstats{grid-column:7/13;display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line2)}
.pstat{padding:22px 0 20px;border-bottom:1px solid var(--line2)}
.pstat:nth-child(odd){padding-right:20px;border-right:1px solid var(--line2)}
.pstat:nth-child(even){padding-left:24px}
.pstat__v{font:600 clamp(40px,4.4vw,60px)/1 var(--f-h);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.pstat__v small{font:500 15px/1 var(--f-b);margin-left:4px;color:var(--mut)}
.pstat__l{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);margin-top:10px}
.equip{grid-column:7/13;display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.equip span{font-size:12.5px;font-weight:500;background:var(--surf2);border:1px solid var(--line);border-radius:999px;padding:6px 12px;color:var(--mut)}
@media (max-width:860px){
  .proj{grid-template-columns:1fr;gap:32px}
  .proj__l,.pstats,.equip{grid-column:auto}
  .pstat:nth-child(odd){padding-right:14px}
  .pstat:nth-child(even){padding-left:16px}
  .fan{height:clamp(220px,62vw,300px)}
  .fan__c,.fan:hover .fan__c{--spread:27%;--rot:6deg;--drop:6px;width:132px;margin:-88px 0 0 -66px}
}
@media (prefers-reduced-motion:reduce){.fan__c{transition:none}}

/* scelta 6 (19/10): recensioni con le animazioni di React Bits Pro (social-proof-15 + 14) */
.sp-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sp-nav{display:flex;gap:10px;flex:none}
.sp-arrow{width:52px;height:52px;border-radius:50%;border:1px solid var(--line2);color:var(--tx);font-size:18px;display:grid;place-items:center;transition:background .3s,color .3s,transform .3s var(--ease),border-color .3s}
.sp-arrow:hover{transform:translateY(-2px);border-color:var(--tx)}
.sp-arrow.on{background:var(--tx);color:var(--bg);border-color:var(--tx)}
.sp{position:relative;border-top:1px solid var(--line2);padding:40px 0 56px;min-height:clamp(320px,30vw,380px)}
.sp-quote{font:500 clamp(26px,3.3vw,44px)/1.22 var(--f-h);letter-spacing:-.025em;max-width:26ch;min-height:3.7em}
.sp-quote .w{display:inline-block;opacity:0;filter:blur(12px);transform:translateY(.35em);transition:opacity .7s var(--ease),filter .7s var(--ease),transform .7s var(--ease);transition-delay:calc(var(--i)*38ms)}
.sp-quote.in .w{opacity:1;filter:none;transform:none}
.sp-quote.out .w{opacity:0;filter:blur(8px);transform:translateY(-.2em);transition-duration:.35s;transition-delay:calc(var(--i)*10ms)}
.sp-who{display:flex;align-items:center;gap:14px;margin-top:28px;flex-wrap:wrap;transition:opacity .4s,transform .4s var(--ease)}
.sp-who.out{opacity:0;transform:translateY(6px)}
.ava{width:40px;height:40px;border-radius:50%;flex:none;display:grid;place-items:center;font:600 15px/1 var(--f-h);color:var(--gold);background:radial-gradient(circle at 30% 30%,rgba(201,165,90,.28),rgba(20,27,46,.9));border:1px dashed rgba(201,165,90,.55)}
.ava--lg{width:52px;height:52px;font-size:18px}
.sp-name{display:flex;flex-direction:column;line-height:1.3}
.sp-name b{font-weight:600}
.sp-name span{color:var(--mut);font-size:14px}
.sp-chip{border:1px solid var(--line2);border-radius:999px;padding:7px 12px;font-size:11px;color:var(--mut)}
.sp-bar{position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--line);border-radius:2px;overflow:hidden}
.sp-bar i{display:block;height:100%;width:100%;transform-origin:left;transform:scaleX(0);background:linear-gradient(90deg,var(--amber),var(--gold))}
.sp-dots{position:absolute;right:0;bottom:20px;display:flex;gap:6px}
.sp-dots i{width:6px;height:6px;border-radius:50%;background:var(--line2);transition:background .3s,width .3s}
.sp-dots i.on{width:18px;border-radius:3px;background:var(--tx)}
.wall{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap);margin-top:clamp(72px,9vw,120px)}
.wall__intro{grid-column:1/5;align-self:start;position:sticky;top:calc(var(--hdr) + 32px)}
.wall__h{font:600 clamp(26px,2.6vw,34px)/1.1 var(--f-h);letter-spacing:-.025em}
.wall__p{color:var(--mut);margin-top:16px;max-width:40ch}
.wall__score{display:flex;align-items:center;gap:12px;margin:24px 0 28px;color:var(--mut);font-size:11px}
.wall__score em{font-style:normal}
.wall__cols{grid-column:6/13;display:grid;grid-template-columns:1fr 1fr;gap:16px;height:620px;overflow:hidden;
  -webkit-mask:linear-gradient(transparent,#000 14%,#000 86%,transparent);mask:linear-gradient(transparent,#000 14%,#000 86%,transparent)}
.wall__track,.wall__dup{display:flex;flex-direction:column;gap:16px}
.wall__track{animation:wallUp 34s linear infinite}
.wall__col--rev .wall__track{animation-direction:reverse;animation-duration:40s}
.wall__cols:hover .wall__track{animation-play-state:paused}
@keyframes wallUp{to{transform:translateY(calc(-50% - 8px))}}
.wcard{position:relative;padding:22px;border-radius:var(--r);background:var(--surf);border:1px solid var(--line);display:flex;flex-direction:column;gap:14px;overflow:hidden;
  --mx:50%;--my:50%;transition:border-color .3s,transform .4s var(--ease)}
.wcard::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .3s;
  background:radial-gradient(260px circle at var(--mx) var(--my),rgba(242,166,90,.16),transparent 60%)}
.wcard:hover{border-color:var(--line2);transform:translateY(-2px)}
.wcard:hover::before{opacity:1}
.wcard p{color:var(--mut);font-size:15px}
.wcard__top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.wcard__who{display:flex;align-items:center;gap:10px;margin-top:4px}
.wcard__who>span:last-child{display:flex;flex-direction:column;line-height:1.3}
.wcard__who b{font-size:14px;font-weight:600}
.wcard__who .mono{font-size:10.5px;color:var(--dim)}
.stars{display:inline-flex;gap:3px}
.stars i{width:12px;height:12px;clip-path:polygon(50% 0,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);background:var(--line2);position:relative;overflow:hidden}
.stars--big i{width:18px;height:18px}
.stars.lit i{animation:starPulse 2.4s var(--ease) both;animation-delay:calc(var(--s,0)*120ms)}
.stars i:nth-child(2){--s:1}.stars i:nth-child(3){--s:2}.stars i:nth-child(4){--s:3}.stars i:nth-child(5){--s:4}
@keyframes starPulse{0%{background:var(--line2)}35%{background:var(--gold)}100%{background:var(--line2)}}
@media (max-width:860px){
  .sp-head{flex-direction:column;align-items:stretch}
  .sp-nav{align-self:flex-end}
  .sp-arrow{width:44px;height:44px}
  .sp{min-height:360px;padding:28px 0 52px}
  .wall{grid-template-columns:1fr;gap:32px}
  .wall__intro{grid-column:auto;position:static}
  .wall__cols{grid-column:auto;grid-template-columns:1fr;height:460px}
  .wall__col--rev{display:none}
}
@media (prefers-reduced-motion:reduce){
  .wall__track{animation:none}
  .sp-quote .w,.sp-who{transition:none}
  .stars.lit i{animation:none}
}

/* scelta 7 (19/10): contatti con l'impianto della versione C, nei colori della A */
.ct{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap)}
.ct__l{grid-column:1/6}
.ct__h{font:600 clamp(40px,5.2vw,72px)/1.02 var(--f-h);letter-spacing:-.035em;margin-top:6px}
.shiny{background:linear-gradient(110deg,var(--gold) 0%,var(--gold) 40%,#fff3d6 50%,var(--amber) 60%,var(--gold) 100%);background-size:220% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:shine 3.6s linear infinite}
@keyframes shine{from{background-position:120% 0}to{background-position:-100% 0}}
.ct__p{color:var(--mut);margin-top:18px;max-width:40ch;font-size:17px}
.ct__ch{margin-top:32px;display:flex;flex-direction:column;border-top:1px solid var(--line2)}
.ct__ch a{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:18px 0;border-bottom:1px solid var(--line2);font-weight:600;transition:padding .35s var(--ease),color .3s}
.ct__ch a:hover{padding-left:8px}
.ct__ch small{display:block;font-size:12px;color:var(--dim);font-weight:500;margin-top:2px}
.ct__form{grid-column:7/13;align-self:start;background:var(--surf);border:1px solid var(--line);border-radius:var(--r);padding:clamp(22px,3vw,36px);display:grid;grid-template-columns:1fr 1fr;gap:16px}
.ct__f{display:flex;flex-direction:column;gap:7px}
.ct__f--full{grid-column:1/-1}
.ct__f label{font:500 10.5px/1 var(--f-m);letter-spacing:.1em;text-transform:uppercase;color:var(--mut)}
.ct__f input,.ct__f select,.ct__f textarea{font:inherit;font-size:16px;height:50px;padding:0 14px;border-radius:12px;border:1px solid var(--line2);background:rgba(255,255,255,.03);color:var(--tx);width:100%;transition:border-color .2s,box-shadow .2s,background .2s}
.ct__f select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--mut) 50%),linear-gradient(-45deg,transparent 50%,var(--mut) 50%);background-position:calc(100% - 20px) 22px,calc(100% - 15px) 22px;background-size:5px 5px;background-repeat:no-repeat}
.ct__f select option{background:var(--bg2);color:var(--tx)}
.ct__f textarea{height:124px;padding:12px 14px;resize:vertical}
.ct__f input:focus,.ct__f select:focus,.ct__f textarea:focus{outline:none;border-color:var(--gold);background:rgba(255,255,255,.05);box-shadow:0 0 0 3px rgba(201,165,90,.2)}
.ct__msg{grid-column:1/-1;padding:14px 16px;border-radius:12px;border:1px solid var(--gold);background:rgba(201,165,90,.08);font-size:14px;color:var(--tx);animation:ctIn .4s var(--ease)}
@keyframes ctIn{from{opacity:0;transform:translateY(6px)}}
.ct__foot{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:4px}
.ct__foot small{color:var(--dim);font-size:12.5px;max-width:30ch}
@media (max-width:860px){
  .ct{grid-template-columns:1fr;gap:36px}
  .ct__l,.ct__form{grid-column:auto}
  .ct__form{grid-template-columns:1fr}
  .ct__foot .btn{width:100%}
  .ct__foot .btn>span{width:100%;justify-content:center;display:flex}
}
@media (prefers-reduced-motion:reduce){.shiny{animation:none}}

/* controllo lancio (20/10): campo trappola antispam nascosto + casella privacy */
.ct__hp{position:absolute!important;left:-9999px;width:1px;height:1px;overflow:hidden}
.ct__chk{display:flex;gap:10px;align-items:flex-start;font:400 13.5px/1.5 var(--f-b)!important;letter-spacing:0!important;text-transform:none!important;color:var(--mut)}
.ct__chk input{width:18px!important;height:18px!important;flex:none;margin-top:2px;accent-color:var(--gold)}
.ct__chk a{color:var(--tx);text-decoration:underline;text-underline-offset:3px}

/* contatti veri (20/10) */
.ct__go{font-size:18px;color:var(--gold);transition:transform .3s var(--ease)}
.ct__ch a:hover .ct__go{transform:translateX(4px)}
.foot-legal a{color:var(--tx);text-decoration:underline;text-underline-offset:3px}

/* 20/10: domande frequenti */
.faq .sp-quote{max-width:22ch}
.faq .sp-who{align-items:flex-start;max-width:62ch}
.faq .ava--lg{display:flex;align-items:center;justify-content:center;font-size:13px;letter-spacing:-.02em;border-style:solid}
.faq .sp-quote{min-height:2.5em}
.faq .sp{min-height:0}
.faq .ava--lg b{color:var(--gold)}
.sp-ans{color:var(--mut);font-size:clamp(16px,1.35vw,19px);line-height:1.55;margin:4px 0 0}
.qcard .qtag{font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--amber)}
.qcard .qmark{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font:600 13px/1 var(--f-h);color:var(--gold);border:1px solid rgba(201,165,90,.45)}
.qcard .qq{font:600 18px/1.25 var(--f-h);letter-spacing:-.015em;color:var(--tx)}