/* Mondievo – landing
   Palette ispirata ai colori normati dei conduttori (CEI EN 60446):
   marrone = fase, blu = neutro, giallo/verde = terra. */
:root{
  --paper:#F2F4F6;
  --paper-2:#E6EAEE;
  --white:#FFFFFF;
  --ink:#14202E;
  --ink-2:#4A5868;
  --rule:#D3DAE1;
  --copper:#A4521E;      /* fase */
  --copper-hi:#C4672D;
  --blue:#2C6BB0;        /* neutro */
  --pe-g:#4E9A3F;        /* terra */
  --pe-y:#E2BD1F;
  --radius-s:6px;
  --radius-m:12px;
  --wrap:1180px;
  --font:"Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
section[id],#contatti{scroll-margin-top:96px}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 1.0625rem/1.6 var(--font);font-stretch:100%}
img,svg{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3{margin:0;line-height:1.08;font-weight:800;font-stretch:112%;letter-spacing:-.015em}
h2{font-size:clamp(1.9rem,1.2rem + 2.6vw,3rem)}
h3{font-size:1.25rem;font-stretch:105%;letter-spacing:0}
p{margin:0}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:4px}
.wrap{width:min(100% - 32px,var(--wrap));margin-inline:auto}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;z-index:100;border-radius:var(--radius-s)}
.skip:focus{left:8px}

/* Bottoni */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;min-height:44px;padding:.65em 1.2em;border-radius:var(--radius-s);font:700 1rem/1.1 var(--font);font-stretch:104%;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.btn svg{width:18px;height:18px}
.btn--copper{background:var(--copper);color:#fff}
.btn--copper:hover{background:#8C4517}
.btn--ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--lg{min-height:54px;padding:.8em 1.5em;font-size:1.0625rem}
.btn--block{width:100%}

/* Conduttori decorativi (L N PE) */
.conductors{display:grid;grid-template-rows:repeat(3,3px);gap:2px}
.conductors i{display:block}
.conductors i:nth-child(1){background:var(--copper)}
.conductors i:nth-child(2){background:var(--blue)}
.conductors i:nth-child(3){background:repeating-linear-gradient(90deg,var(--pe-g) 0 22px,var(--pe-y) 22px 30px)}

/* Header */
.top{position:sticky;top:0;z-index:50;background:rgba(242,244,246,.92);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px)}
.top__in{display:flex;align-items:center;gap:24px;min-height:76px}
.brand img{height:46px;width:auto}
.brand__txt{font-weight:800;font-stretch:125%;font-size:1.5rem;text-decoration:none}
.brand{text-decoration:none}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{padding:10px 12px;text-decoration:none;color:var(--ink-2);font-weight:600;border-radius:var(--radius-s)}
.nav a:hover{color:var(--ink);background:var(--paper-2)}
.top__cta{display:flex;align-items:center;gap:16px}
.tel{display:inline-flex;align-items:center;gap:8px;font-weight:700;text-decoration:none;white-space:nowrap}
.tel svg{width:18px;height:18px;color:var(--copper)}

/* Hero */
.hero{padding:clamp(40px,6vw,88px) 0 clamp(48px,6vw,96px);overflow:hidden}
.hero__grid{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(24px,4vw,64px);align-items:center}
.hero__kicker{color:var(--copper);font-weight:700;margin-bottom:18px;font-size:1rem}
.hero h1{font-size:clamp(3rem,1.1rem + 3vw,3.6rem);font-stretch:118%;letter-spacing:-.035em;line-height:.95;max-width:9ch}
.hero__lead{margin-top:26px;font-size:clamp(1.08rem,1rem + .4vw,1.3rem);color:var(--ink-2);max-width:34em}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero__facts{list-style:none;padding:0;margin:40px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--rule)}
.hero__facts li{padding:16px 16px 0 0;font-size:.92rem;color:var(--ink-2);line-height:1.4}
.hero__facts li+li{padding-left:16px;border-left:1px solid var(--rule)}
.hero__facts strong{display:block;font-size:1.35rem;font-stretch:115%;color:var(--ink);margin-bottom:4px}
.hero__art{margin:0}

/* Schema SVG */
.schema{width:100%;height:auto;overflow:visible}
.schema .w{fill:none;stroke-width:9;stroke-linecap:round;stroke-linejoin:round}
.w--l{stroke:var(--copper)}
.w--n{stroke:var(--blue)}
.w--pe{stroke:var(--pe-g)}
.w--stripe{stroke:var(--pe-y);stroke-dasharray:6 18}
.q-box{fill:var(--white);stroke:var(--ink);stroke-width:2.5}
.q-bar{fill:var(--paper-2)}
.q-mods rect{fill:var(--paper);stroke:var(--ink);stroke-width:1.5}
.q-mods .q-diff{fill:#E9EEF6}
.q-levers rect{fill:var(--ink)}
.q-label{font:700 11px var(--font);text-anchor:middle;fill:var(--ink)}
.q-small{font:600 10px var(--font);fill:var(--ink-2)}
.q-led{fill:var(--pe-g)}
.out .o{fill:none;stroke:var(--ink);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.node circle{fill:var(--white);stroke:var(--ink);stroke-width:2.5}
.node use{color:var(--ink)}
.n1 use{color:var(--copper)}.n2 use{color:var(--blue)}.n3 use{color:var(--ink)}.n4 use{color:#B78E00}
.n-label{font:700 13px var(--font);text-anchor:middle;fill:var(--ink)}
.pulse{fill:#FFD84D;stroke:var(--ink);stroke-width:1.5;opacity:0}

/* Animazione d'ingresso: i conduttori "portano corrente" al quadro, poi alle utenze */
.js .schema .w,.js .schema .o{stroke-dasharray:var(--len);stroke-dashoffset:var(--len)}
.js .schema .w--stripe{stroke-dasharray:6 18;stroke-dashoffset:0;opacity:0}
.js .schema .quadro,.js .schema .node,.js .schema .n-label{opacity:0}
.js .schema.on .w{animation:draw 1s var(--ease) forwards}
.js .schema.on .w--n{animation-delay:.1s}.js .schema.on .w--pe{animation-delay:.2s}
.js .schema.on .w--stripe{animation:fade .3s 1.1s forwards}
.js .schema.on .quadro{animation:fade .5s .8s forwards}
.js .schema.on .o{animation:draw .8s var(--ease) forwards}
.js .schema.on .o1{animation-delay:1.3s}.js .schema.on .o2{animation-delay:1.45s}.js .schema.on .o3{animation-delay:1.6s}.js .schema.on .o4{animation-delay:1.75s}
.js .schema.on .node,.js .schema.on .n-label{animation:pop .45s var(--ease) forwards}
.js .schema.on .n1{animation-delay:1.9s}.js .schema.on .n2{animation-delay:2s}.js .schema.on .n3{animation-delay:2.1s}.js .schema.on .n4{animation-delay:2.2s}
.js .schema.on .n-label{animation-delay:2.2s}
.js .schema.on .q-led{animation:led 1.6s 2.3s infinite}
.schema.on .pulse{animation:fade .3s 2.4s forwards}
.node{transform-box:fill-box;transform-origin:center}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes fade{to{opacity:1}}
@keyframes pop{from{opacity:0;transform:scale(.85)}to{opacity:1;transform:none}}
@keyframes led{50%{opacity:.35}}

/* Settori */
.sector{background:var(--white);padding:clamp(56px,7vw,104px) 0;border-block:1px solid var(--rule)}
.sector__head{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:12px 32px;margin-bottom:32px}
.sector__head p{color:var(--ink-2);font-size:1.1rem}
.tabs{display:inline-flex;flex-wrap:wrap;gap:6px;padding:6px;background:var(--paper);border-radius:var(--radius-m);margin-bottom:28px}
.tabs button{font:700 1rem var(--font);font-stretch:104%;border:0;background:transparent;color:var(--ink-2);padding:12px 20px;border-radius:8px;cursor:pointer;min-height:44px}
.tabs button[aria-selected="true"]{background:var(--ink);color:#fff}
.tabs button:hover:not([aria-selected="true"]){color:var(--ink);background:var(--paper-2)}
.panel{display:grid;grid-template-columns:1fr 1.15fr;gap:clamp(24px,5vw,72px);align-items:start}
.panel[hidden]{display:none}
.panel.in{animation:panelIn .35s var(--ease)}
@keyframes panelIn{from{opacity:0;transform:translateY(6px)}}
.panel__text h3{font-size:clamp(1.5rem,1.1rem + 1.2vw,2.1rem);font-stretch:110%;line-height:1.12}
.panel__text p{margin:16px 0 26px;color:var(--ink-2);max-width:36em}
.svc{list-style:none;margin:0;padding:0;border-top:2px solid var(--ink)}
.svc li{display:flex;gap:18px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--rule)}
.svc svg{width:34px;height:34px;flex:none;color:var(--copper)}
.svc b{display:block;font-size:1.12rem;font-stretch:106%}
.svc span{color:var(--ink-2);font-size:.98rem}

/* Specialità */
.spec{padding:clamp(56px,7vw,104px) 0}
.spec h2{max-width:14ch}
.spec__grid{list-style:none;padding:0;margin:40px 0 0;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--rule);border-left:1px solid var(--rule)}
.spec__grid li{padding:26px 22px 28px;border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);font-weight:600;font-size:1.05rem;line-height:1.3;background:var(--paper)}
.spec__grid svg{width:36px;height:36px;margin-bottom:18px;color:var(--ink)}
.spec__grid li:nth-child(4n+1) svg{color:var(--copper)}
.spec__grid li:nth-child(4n+2) svg{color:var(--blue)}
.spec__grid li:nth-child(4n+3) svg{color:var(--pe-g)}

/* Metodo */
.method{background:var(--ink);color:#fff;padding:clamp(56px,7vw,104px) 0}
.steps{list-style:none;padding:0;margin:44px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:s;position:relative}
.steps::before{content:"";position:absolute;left:22px;right:22px;top:22px;height:3px;background:linear-gradient(90deg,var(--copper-hi),var(--blue) 55%,var(--pe-g))}
.steps li{position:relative;padding-right:28px}
.steps__n{position:relative;display:grid;place-items:center;width:46px;height:46px;border-radius:50%;background:var(--ink);border:3px solid #fff;font-weight:800;font-size:1.1rem;margin-bottom:22px}
.steps h3{margin-bottom:10px}
.steps p{color:#C2CCD6;font-size:.98rem}

/* Chi siamo */
.about{padding:clamp(56px,7vw,104px) 0}
.about__grid{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(28px,5vw,80px)}
.about__lead{font-size:clamp(1.2rem,1rem + .7vw,1.55rem);line-height:1.4;font-weight:600;margin:20px 0 18px;max-width:30em}
.about p:not(.about__lead){color:var(--ink-2);max-width:38em}
.values{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:28px 32px;align-content:start;padding-top:8px}
.values div{border-top:3px solid var(--ink);padding-top:14px}
.values div:nth-child(1){border-color:var(--copper)}
.values div:nth-child(2){border-color:var(--blue)}
.values div:nth-child(3){border-color:var(--pe-g)}
.values dt{font-weight:800;font-stretch:108%;font-size:1.12rem;margin-bottom:6px}
.values dd{margin:0;color:var(--ink-2);font-size:.98rem}

/* Preventivo */
.quote{background:var(--white);border-top:1px solid var(--rule);padding:clamp(56px,7vw,104px) 0}
.quote__grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(28px,5vw,80px);align-items:start}
.quote__intro{position:sticky;top:110px}
.quote__intro>p{margin:16px 0 28px;color:var(--ink-2);font-size:1.1rem;max-width:30em}
.contact{list-style:none;padding:0;margin:0 0 28px;display:grid;gap:4px}
.contact li{display:flex;align-items:center;gap:12px}
.contact svg{width:20px;height:20px;flex:none;color:var(--copper)}
.contact a{display:inline-block;padding:8px 0;font-weight:600;text-decoration:none}
.contact a:hover{text-decoration:underline;text-underline-offset:3px}
.hours{border-collapse:collapse;font-size:.98rem;min-width:280px}
.hours caption{text-align:left;font-weight:800;margin-bottom:6px}
.hours th{text-align:left;font-weight:400;color:var(--ink-2);padding:6px 24px 6px 0;border-top:1px solid var(--rule)}
.hours td{padding:6px 0;border-top:1px solid var(--rule);font-weight:600;font-variant-numeric:tabular-nums}

.form{background:var(--paper);border-radius:var(--radius-m);padding:clamp(20px,3vw,36px);border:1px solid var(--rule)}
.form fieldset{border:0;padding:0;margin:0 0 22px}
.form legend,.field label{font-weight:700;margin-bottom:10px;display:block}
.form legend small{font-weight:400;color:var(--ink-2);margin-left:6px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips legend{width:100%}
.chips label{position:relative}
.chips input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.chips span{display:inline-flex;align-items:center;min-height:42px;padding:8px 14px;border:1.5px solid var(--rule);border-radius:999px;background:var(--white);font-weight:600;font-size:.95rem;cursor:pointer;transition:border-color .15s,background .15s,color .15s}
.chips input:hover+span{border-color:var(--ink-2)}
.chips input:checked+span{background:var(--ink);border-color:var(--ink);color:#fff}
.chips input:focus-visible+span{outline:3px solid var(--blue);outline-offset:2px}
.chips--multi input:checked+span::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--pe-y);margin-right:8px}
.urgent{margin:-8px 0 20px;padding:12px 14px;border-left:4px solid var(--copper);background:#FBEFE6;font-weight:600}
.urgent a{white-space:nowrap}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:18px}
.field input,.field textarea{width:100%;font:400 1rem/1.4 var(--font);color:var(--ink);background:var(--white);border:1.5px solid var(--rule);border-radius:var(--radius-s);padding:12px 14px;min-height:48px;transition:border-color .15s}
.field textarea{resize:vertical;min-height:110px}
.field input:hover,.field textarea:hover{border-color:var(--ink-2)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(44,107,176,.18)}
.field.bad input{border-color:#B3261E}
.err{display:none;color:#B3261E;font-size:.9rem;margin-top:6px;font-weight:600}
.bad>.err,.err.show{display:block}
.check{display:flex;gap:12px;align-items:flex-start;margin:6px 0 4px;font-size:.95rem;color:var(--ink-2);cursor:pointer}
.check input{width:22px;height:22px;flex:none;margin:1px 0 0;accent-color:var(--ink)}
.check a{color:var(--ink);font-weight:600}
.form .btn--block{margin-top:20px}
.form__status{margin-top:14px;font-weight:600;min-height:1.6em}
.form__status.ok{color:#2E6B22}
.form__status.ko{color:#B3261E}
.form.sent .row,.form.sent fieldset,.form.sent .field,.form.sent .check,.form.sent .btn,.form.sent .urgent{display:none}
.form.sent .form__status{font-size:1.2rem;color:var(--ink);margin:0}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* Footer */
.foot{background:var(--ink);color:#C2CCD6;font-size:.95rem}
.foot__in{display:grid;grid-template-columns:1.2fr 1fr auto;gap:24px;padding:40px 0 48px}
.foot__brand{color:#fff;font-weight:800;font-stretch:120%;font-size:1.3rem;margin-bottom:4px}
.foot a{color:#fff}
.foot__links{list-style:none;margin:0;padding:0;display:grid;gap:4px}

/* Dock mobile */
.dock{display:none}

/* Responsive */
@media (max-width:1060px){
  .nav{display:none}
  .top__cta{margin-left:auto}
}
@media (max-width:900px){
  .hero__grid,.panel,.about__grid,.quote__grid{grid-template-columns:1fr}
  .hero__art{max-width:520px;width:100%;margin-inline:auto}
  .spec__grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr 1fr;row-gap:36px}
  .steps::before{display:none}
  .quote__intro{position:static}
  .foot__in{grid-template-columns:1fr}
}
@media (max-width:640px){
  body{padding-bottom:68px}
  .top__in{min-height:64px}
  .brand img{height:38px}
  .tel span{display:none}
  .top__cta .btn{display:none}
  .tel{width:44px;height:44px;justify-content:center;border:1.5px solid var(--rule);border-radius:50%}
  .hero__facts{grid-template-columns:1fr}
  .hero__facts li,.hero__facts li+li{padding:14px 0;border-left:0;border-bottom:1px solid var(--rule)}
  .hero__facts strong{display:inline;margin-right:8px;font-size:1.1rem}
  .hero__actions .btn{width:100%}
  .tabs{display:flex}
  .tabs button{flex:1 1 auto;padding:12px 10px}
  .row{grid-template-columns:1fr;gap:0}
  .steps{grid-template-columns:1fr}
  .values{grid-template-columns:1fr}
  .spec__grid li{padding:20px 16px}
  .dock{display:grid;grid-template-columns:1fr 1fr 1.3fr;position:fixed;left:0;right:0;bottom:0;z-index:60;background:var(--ink);padding:8px 8px calc(8px + env(safe-area-inset-bottom));gap:8px}
  .dock a{display:flex;align-items:center;justify-content:center;gap:8px;min-height:48px;border-radius:var(--radius-s);color:#fff;text-decoration:none;font-weight:700;background:rgba(255,255,255,.08)}
  .dock svg{width:18px;height:18px}
  .dock .dock__main{background:var(--copper)}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-delay:0s!important;animation-iteration-count:1!important;transition:none!important}
  .pulse{display:none}
}