/* ETECH LAB — stile "Luce del Sud" */
@font-face{font-family:"DM Serif Display";src:url("../fonts/DMSerifDisplay-Regular.ttf") format("truetype");font-weight:400;font-display:swap}
@font-face{font-family:"DM Serif Display";src:url("../fonts/DMSerifDisplay-Italic.ttf") format("truetype");font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:"Figtree";src:url("../fonts/Figtree-Variable.ttf") format("truetype");font-weight:300 900;font-display:swap}

:root{
  --blu:#123E7C; --blu-d:#0B2E5E; --notte:#0E1E36; --calce:#FFFFFF; --pietra:#EFE9DE; --pietra-d:#DCD2C2;
  --cielo:#A9D3EF; --cielo-l:#DCEEFA; --sole:#F7B32B; --sole-l:#FCE3A6; --rosso:#D33A2C; --testo-2:#4A5A70;
  --serif:"DM Serif Display",Georgia,serif; --sans:"Figtree",Arial,sans-serif;
  --w:1180px; --r:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);font-size:17px;line-height:1.62;color:var(--notte);background:var(--calce);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:var(--blu);text-underline-offset:3px;text-decoration-thickness:1.5px}
a:hover{color:var(--blu-d)}
:focus-visible{outline:3px solid var(--sole);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--w);margin:0 auto;padding:0 28px}
.skip{position:absolute;left:-999px;top:8px;background:var(--sole);color:var(--notte);padding:8px 14px;border-radius:8px;z-index:20}
.skip:focus{left:12px}

h1,h2,.serif{font-family:var(--serif);font-weight:400;color:var(--blu);letter-spacing:-.01em}
h1{font-size:clamp(40px,5.6vw,68px);line-height:1.04;margin:0 0 22px}
h2{font-size:clamp(32px,3.8vw,46px);line-height:1.08;margin:0 0 18px}
h3{font-size:20px;line-height:1.3;margin:0 0 6px;font-weight:700}
p{margin:0 0 14px}
.lead{font-size:20px;line-height:1.55;color:var(--notte);max-width:36em}
.muted{color:var(--testo-2)}
.small{font-size:15px}
.measure{max-width:40em}

/* header */
.site-head{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.96);border-bottom:1px solid var(--pietra)}
.site-head .wrap{display:flex;align-items:center;gap:28px;height:88px}
.brand{font-weight:800;font-size:19px;letter-spacing:.05em;color:var(--blu);text-decoration:none;white-space:nowrap}
.brand small{display:block;font-weight:500;font-size:11.5px;letter-spacing:0;color:var(--testo-2);margin-top:-3px}
.nav{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav a{color:var(--notte);text-decoration:none;font-weight:600;font-size:15.5px;padding:8px 12px;border-radius:99px}
.nav a:hover{background:var(--pietra)}
.nav a[aria-current="page"]{box-shadow:inset 0 -3px 0 var(--sole);border-radius:0}
.nav .btn{margin-left:8px}
.menu-btn{display:none;margin-left:auto;background:none;border:0;font:inherit;font-weight:700;color:var(--blu);padding:10px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--blu);color:#fff;text-decoration:none;font-weight:700;font-size:16px;
  padding:13px 24px;border-radius:99px;border:0;cursor:pointer;font-family:var(--sans)}
.btn:hover{background:var(--blu-d);color:#fff}
.btn.sun{background:var(--sole);color:var(--notte)}
.btn.sun:hover{background:#E9A51A;color:var(--notte)}
.btn.line{background:transparent;color:var(--blu);box-shadow:inset 0 0 0 2px var(--blu)}
.btn.line:hover{background:var(--cielo-l)}
.nav .btn{padding:10px 18px;font-size:15px;color:#fff}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* sections */
section{padding:88px 0}
.band-pietra{background:var(--pietra)}
.band-cielo{background:var(--cielo-l)}
.band-blu{background:var(--blu);color:#fff}
.band-blu h2,.band-blu h1{color:#fff}
.band-blu a{color:#fff}
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:center}
.split.top{align-items:start}
.cols-3{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.cols-2{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.cols-4{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}

/* hero */
.hero{padding:56px 0 72px}
.hero .split{grid-template-columns:1fr 1.05fr}
.sim{background:var(--cielo-l);border-radius:var(--r);padding:20px 20px 18px;position:relative}
.sim svg{width:100%;height:auto}
.sim-ctrl{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center;margin-top:10px}
.sim-ctrl label{font-weight:700;font-size:15px;display:flex;justify-content:space-between}
.sim-ctrl output{font-family:var(--serif);font-size:22px;color:var(--blu);font-weight:400}
input[type=range]{width:100%;accent-color:var(--blu);height:28px}
.toggle{display:inline-flex;align-items:center;gap:10px;background:#fff;border:0;border-radius:99px;padding:8px 16px 8px 8px;font:inherit;font-weight:700;cursor:pointer;color:var(--notte)}
.toggle .knob{width:44px;height:26px;border-radius:99px;background:var(--pietra-d);position:relative;transition:background .2s}
.toggle .knob::after{content:"";position:absolute;left:3px;top:3px;width:20px;height:20px;border-radius:50%;background:#fff;transition:transform .2s}
.toggle[aria-pressed="true"] .knob{background:var(--blu)}
.toggle[aria-pressed="true"] .knob::after{transform:translateX(18px);background:var(--sole)}
.sim-note{font-size:14px;color:var(--testo-2);margin:10px 2px 0}

/* facts */
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid var(--blu);margin-top:40px}
.facts div{padding:18px 18px 0 0}
.facts b{display:block;font-family:var(--serif);font-weight:400;font-size:40px;line-height:1.05;color:var(--blu)}
.facts span{font-size:15px;color:var(--testo-2)}

/* list rows */
.rows{border-top:1.5px solid var(--pietra-d)}
.row{display:grid;grid-template-columns:220px 1fr auto;gap:28px;padding:22px 0;border-bottom:1.5px solid var(--pietra-d);align-items:baseline}
.row h3{margin:0}
.row p{margin:0}

/* arch */
.arch{border-radius:999px 999px 0 0;overflow:hidden;background:var(--cielo-l)}
.arch svg{width:100%;height:100%}

/* tag */
.tag{display:inline-block;background:var(--sole);color:var(--notte);font-weight:700;font-size:13.5px;padding:4px 12px;border-radius:99px;text-decoration:none}
.tag.stone{background:var(--pietra)}
.tag.red{background:var(--rosso);color:#fff}

/* posts */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.post a{text-decoration:none;color:inherit;display:block}
.post .thumb{aspect-ratio:1200/630;border-radius:var(--r);overflow:hidden;background:var(--pietra);margin-bottom:16px}
.post .thumb svg{width:100%;height:100%}
.post h3{font-family:var(--serif);font-weight:400;font-size:25px;line-height:1.15;color:var(--blu);margin:10px 0 8px}
.post a:hover h3{text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:4px}
.post .meta{font-size:14px;color:var(--testo-2)}
.post.first{grid-column:1/-1;display:grid}
.post.first a{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center}
.post.first h3{font-size:36px}

/* tables */
table{border-collapse:collapse;width:100%;font-size:16px}
th{text-align:left;font-size:14px;color:var(--testo-2);font-weight:700;padding:10px 12px;border-bottom:2px solid var(--blu)}
td{padding:14px 12px;border-bottom:1px solid var(--pietra-d);vertical-align:top}
td .serif{font-size:26px;line-height:1}
.table-scroll{overflow-x:auto}

/* filters */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0 24px}
.chip{border:0;background:var(--pietra);color:var(--notte);font:inherit;font-weight:700;font-size:15px;padding:8px 16px;border-radius:99px;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--blu);color:#fff}
.dl{white-space:nowrap;font-weight:600}

/* shadow card */
.shade{position:relative;background:#fff;border-radius:var(--r);padding:28px}
.shade::before{content:"";position:absolute;inset:0;transform:translate(14px,14px);background:var(--pietra-d);border-radius:var(--r);z-index:-1}
.band-pietra .shade::before{background:#D6CBB8}

/* quote */
blockquote{margin:28px 0;padding:0 0 0 22px;border-left:4px solid var(--sole);font-family:var(--serif);font-style:italic;font-size:27px;line-height:1.3;color:var(--blu)}

/* form */
form{display:grid;gap:16px}
.field{display:grid;gap:6px}
.field label{font-weight:700;font-size:15px}
.field input,.field select,.field textarea{font:inherit;font-size:16px;padding:12px 14px;border:1.5px solid var(--pietra-d);border-radius:10px;background:#fff;color:var(--notte)}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blu);outline:3px solid var(--cielo);outline-offset:0}
.form-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:15px}
.check input{margin-top:4px;width:18px;height:18px;accent-color:var(--blu)}
.form-msg{display:none;background:var(--cielo-l);border-radius:10px;padding:14px 16px;font-weight:600}
.form-msg.show{display:block}

/* article */
.article{max-width:720px;margin:0 auto}
.article h2{font-size:34px;margin-top:40px}
.article figure{margin:32px 0}
.article figcaption{font-size:14px;color:var(--testo-2);margin-top:8px}
.tryit{background:var(--pietra);border-radius:var(--r);padding:26px 28px;margin-top:40px}

/* footer */
.site-foot{background:var(--blu);color:#DCE6F4;padding:64px 0 36px;font-size:15.5px}
.site-foot a{color:#fff}
.site-foot .grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.3fr;gap:36px}
.site-foot h3{color:#fff;font-size:16px}
.site-foot ul{list-style:none;padding:0;margin:0}
.site-foot li{margin-bottom:6px}
.foot-brand img{display:block;width:180px;height:auto}
.funding{border-top:1px solid #2F5A96;margin-top:40px;padding-top:20px;font-size:13px;color:#B9CBE6}

/* page head */
.page-head{padding:64px 0 40px}
.page-head .lead{margin-top:6px}

@media (max-width:980px){
  .split,.hero .split,.cols-2,.post.first a{grid-template-columns:1fr;gap:36px}
  .cols-3,.posts,.cols-4{grid-template-columns:1fr 1fr}
  .site-foot .grid{grid-template-columns:1fr 1fr}
  .row{grid-template-columns:1fr;gap:6px}
}
@media (max-width:760px){
  body{font-size:16.5px}
  section{padding:60px 0}
  .wrap{padding:0 20px}
  .menu-btn{display:block}
  .nav{display:none;position:absolute;top:88px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 20px 20px;border-bottom:1px solid var(--pietra)}
  .nav.open{display:flex}
  .nav a{padding:12px 6px}
  .nav a[aria-current="page"]{box-shadow:inset 3px 0 0 var(--sole);padding-left:12px}
  .nav .btn{margin:8px 0 0;justify-content:center}
  .cols-3,.posts,.facts,.form-2,.site-foot .grid,.cols-4{grid-template-columns:1fr}
  .facts{grid-template-columns:1fr 1fr}
  .sim-ctrl{grid-template-columns:1fr}
  .lead{font-size:18.5px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* correzioni telefono */
.field input,.field select,.field textarea{width:100%;min-width:0}
.form-2>*,.split>*,.cols-2>*{min-width:0}
@media (max-width:760px){
  .shade::before{transform:translate(8px,8px)}
  #conf-table,#conf-table tbody,#conf-table tr,#conf-table td{display:block;width:100%}
  #conf-table tr:first-child{display:none}
  #conf-table tr{padding:16px 0;border-bottom:1.5px solid var(--pietra-d)}
  #conf-table tr[hidden]{display:none}
  #conf-table td{border:0;padding:3px 0}
  .actions .btn{width:100%;justify-content:center}
}

/* trova la configurazione */
.finder{display:grid;grid-template-columns:1.1fr 1fr;gap:36px;align-items:start}
.finder fieldset{border:0;margin:0 0 20px;padding:0}
.finder legend{font-weight:700;font-size:16px;margin-bottom:10px;padding:0}
.finder .opts{display:flex;flex-wrap:wrap;gap:8px}
.finder .opt{position:relative}
.finder .opt input{position:absolute;opacity:0;width:1px;height:1px}
.finder .opt span{display:inline-block;padding:9px 16px;border-radius:99px;background:#fff;font-weight:600;font-size:15px;cursor:pointer;box-shadow:inset 0 0 0 1.5px var(--pietra-d)}
.finder .opt input:checked + span{background:var(--blu);color:#fff;box-shadow:none}
.finder .opt input:focus-visible + span{outline:3px solid var(--sole);outline-offset:2px}
.f-res{background:#fff;border-radius:var(--r);padding:28px;position:relative}
.f-res::before{content:"";position:absolute;inset:0;transform:translate(14px,14px);background:var(--pietra-d);border-radius:var(--r);z-index:-1}
.f-res .code{font-family:var(--serif);font-size:64px;line-height:1;color:var(--blu)}
.f-res p{margin:12px 0 0}
.f-res .links{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:18px;font-weight:600}
@media (max-width:980px){.finder{grid-template-columns:1fr}}
@media (max-width:760px){.f-res::before{transform:translate(8px,8px)}}

.brand img{display:block;width:160px;height:auto}