/* ISOLA Marine — foglio di stile unico.
   Nessuna dipendenza esterna: font serviti dal nostro dominio, zero framework. */

:root{
  --navy:#1E364E;
  --navy-scuro:#16293b;
  --blu:#4A90C2;
  --blu-scuro:#2E6E9E;
  --blu-medio:#77ACD1;
  --blu-chiaro:#AECBE2;
  --ghiaccio:#F4F7FA;
  --riga:#DDE5EC;
  --inchiostro:#22303D;
  --inchiostro-2:#5A6B7A;
  --bianco:#fff;
  --max:1120px;
  --gutter:clamp(1.25rem,5vw,2.5rem);
}

@font-face{font-family:Montserrat;src:url(../fonts/montserrat-light.woff2)format('woff2');font-weight:300;font-style:normal;font-display:swap}
@font-face{font-family:Montserrat;src:url(../fonts/montserrat-regular.woff2)format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:Montserrat;src:url(../fonts/montserrat-medium.woff2)format('woff2');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:Montserrat;src:url(../fonts/montserrat-semibold.woff2)format('woff2');font-weight:600;font-style:normal;font-display:swap}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}

body{
  margin:0;
  font-family:Montserrat,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-weight:400;
  font-size:clamp(1rem,.96rem + .2vw,1.0625rem);
  line-height:1.65;
  color:var(--inchiostro);
  background:var(--bianco);
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3{line-height:1.15;margin:0;font-weight:600;color:var(--navy);letter-spacing:-.01em}
h1{font-size:clamp(1.9rem,1.3rem + 2.8vw,3.4rem)}
h2{font-size:clamp(1.5rem,1.1rem + 1.9vw,2.5rem)}
h3{font-size:clamp(1.05rem,1rem + .35vw,1.25rem)}
p{margin:0 0 1.1em}
a{color:var(--blu-scuro)}
img,svg{max-width:100%;height:auto}

.wrap{max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}
.sez{padding-block:clamp(3.5rem,2rem + 7vw,7rem)}
.sez--ghiaccio{background:var(--ghiaccio)}
.sez--navy{background:var(--navy);color:#D9E2EA}
.sez--navy h2,.sez--navy h3{color:#fff}

/* etichettine maiuscole spaziate: la voce del marchio */
.occhiello{
  font-size:.72rem;font-weight:500;letter-spacing:.18em;text-transform:uppercase;
  color:var(--blu);margin:0 0 1rem;display:block;
}
.sez--navy .occhiello{color:var(--blu-medio)}
.filetto{width:64px;height:3px;background:var(--blu);border:0;margin:1.5rem 0 1.7rem}
.occhio{max-width:62ch}

/* ---------- barra di navigazione ---------- */
.testa{position:sticky;top:0;z-index:50;background:rgba(30,54,78,.94);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
.testa__in{display:flex;align-items:center;gap:1rem;min-height:66px}
.testa__logo{display:flex;align-items:center;flex:0 0 auto;color:#fff}
.testa__logo svg{width:132px;display:block}
.testa nav{margin-left:auto;display:none;gap:1.6rem;align-items:center}
@media(min-width:900px){.testa nav{display:flex}}
.testa nav a{color:#CBD8E4;text-decoration:none;font-size:.86rem;font-weight:500;letter-spacing:.02em}
.testa nav a:hover{color:#fff}
.lingue{display:flex;gap:.1rem;align-items:center;margin-left:auto}
@media(min-width:900px){.lingue{margin-left:1.4rem}}
.lingue a{
  color:#8FA5B8;text-decoration:none;font-size:.72rem;font-weight:600;letter-spacing:.08em;
  padding:.35rem .5rem;border-radius:4px;
}
.lingue a[aria-current=true]{color:#fff;background:rgba(255,255,255,.12)}
.lingue a:hover{color:#fff}

/* ---------- apertura ---------- */
.apri{position:relative;background:var(--navy);color:#fff;overflow:hidden;text-align:center;
  padding-block:clamp(3.5rem,2rem + 9vw,7rem) clamp(7rem,4rem + 12vw,11rem)}
.apri__logo{color:#fff;width:min(78vw,520px);margin:0 auto clamp(1.6rem,4vw,2.4rem);display:block}
.apri__paga{
  font-size:clamp(.66rem,.6rem + .3vw,.82rem);font-weight:400;letter-spacing:.22em;
  text-transform:uppercase;color:#BBCEDF;margin:0 0 clamp(2rem,5vw,3rem)
}
.apri h1{color:#fff;max-width:20ch;margin:0 auto .9rem;font-weight:300}
.apri h1 b{font-weight:600;color:#fff}
.apri__sotto{color:#B9CADA;max-width:56ch;margin:0 auto;font-size:clamp(1rem,.95rem + .3vw,1.15rem)}
.apri__azioni{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center;margin-top:2.2rem}
.onda-sotto{position:absolute;left:0;right:0;bottom:-1px;width:100%;display:block;pointer-events:none}

/* ---------- pulsanti ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 1.6rem;border-radius:2px;
  font-size:.85rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;
  border:1px solid transparent;transition:background .18s,color .18s,border-color .18s;
}
.btn--pieno{background:var(--blu);color:#fff}
.btn--pieno:hover{background:#3d7fae}
.btn--vuoto{border-color:rgba(255,255,255,.4);color:#fff}
.btn--vuoto:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn--navy{background:var(--navy);color:#fff}
.btn--navy:hover{background:var(--navy-scuro)}

/* ---------- blocco risposta (leggibile dalle AI) ---------- */
.risposta{
  border-left:3px solid var(--blu);padding:.15rem 0 .15rem 1.4rem;margin:0 0 2rem;
  font-size:clamp(1.05rem,1rem + .45vw,1.28rem);line-height:1.5;color:var(--navy);font-weight:500;max-width:60ch
}
.sez--navy .risposta{color:#EAF1F7;border-color:var(--blu-medio)}

/* ---------- numeri ---------- */
.numeri{list-style:none;margin:0;padding:0;display:grid;gap:1px;background:var(--riga);
  grid-template-columns:repeat(2,1fr);border:1px solid var(--riga)}
@media(min-width:780px){.numeri{grid-template-columns:repeat(3,1fr)}}
.numeri li{background:var(--bianco);padding:clamp(1.3rem,3vw,2rem)}
.numeri b{display:block;font-size:clamp(1.9rem,1.2rem + 2.6vw,2.9rem);font-weight:600;color:var(--navy);line-height:1;letter-spacing:-.02em}
.numeri span{display:block;margin-top:.6rem;font-size:.86rem;color:var(--inchiostro-2);line-height:1.45}

/* ---------- grafico: energia realmente utilizzabile ---------- */
.grafico{margin:2.5rem 0 0;padding:0;border:0}
.grafico ol{list-style:none;margin:0;padding:0;display:grid;gap:1.6rem}
.barra__testa{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;margin-bottom:.5rem}
.barra__nome{font-size:.95rem;font-weight:500;color:var(--navy)}
.barra__val{font-size:.95rem;font-weight:600;color:var(--navy);font-variant-numeric:tabular-nums;white-space:nowrap}
.barra__pista{position:relative;height:22px;background:#E8EEF4;border-radius:2px;overflow:hidden}
.barra__fatto{position:absolute;inset-block:0;left:0;border-radius:0 4px 4px 0}
.barra__forse{position:absolute;inset-block:0;border-radius:0 4px 4px 0;opacity:.45}
.barra--a .barra__fatto,.barra--a .barra__forse{background:var(--blu-chiaro)}
.barra--b .barra__fatto,.barra--b .barra__forse{background:var(--blu-medio)}
.barra--c .barra__fatto{background:var(--blu-scuro)}
.grafico li:last-child .barra__nome,.grafico li:last-child .barra__val{font-weight:600;color:var(--blu-scuro)}
.grafico figcaption{margin-top:1.4rem;font-size:.82rem;color:var(--inchiostro-2);max-width:64ch}

/* ---------- griglie di schede ---------- */
.griglia{display:grid;gap:clamp(1.2rem,3vw,2.2rem);grid-template-columns:1fr}
@media(min-width:720px){.griglia--2{grid-template-columns:repeat(2,1fr)}}
@media(min-width:720px){.griglia--4{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1000px){.griglia--4{grid-template-columns:repeat(4,1fr)}}
.scheda h3{margin-bottom:.55rem}
.scheda p{margin:0;color:var(--inchiostro-2);font-size:.95rem}
.scheda__n{display:block;font-size:.72rem;font-weight:600;letter-spacing:.16em;color:var(--blu);margin-bottom:.9rem}
.sez--navy .scheda p{color:#B9CADA}
.sez--navy .scheda__n{color:var(--blu-medio)}

/* ---------- modelli ---------- */
.modelli{display:grid;gap:1px;background:var(--riga);border:1px solid var(--riga);grid-template-columns:1fr}
@media(min-width:640px){.modelli{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1040px){.modelli{grid-template-columns:repeat(4,1fr)}}
.modello{background:var(--bianco);padding:clamp(1.3rem,3vw,1.9rem)}
.modello b{display:block;font-size:clamp(1.5rem,1.2rem + 1.2vw,1.9rem);font-weight:600;color:var(--navy);line-height:1}
.modello .volt{display:block;margin-top:.35rem;font-size:.78rem;font-weight:600;letter-spacing:.12em;color:var(--blu);text-transform:uppercase}
.modello dl{margin:1.2rem 0 0;display:grid;grid-template-columns:auto 1fr;gap:.45rem 1rem;font-size:.86rem}
.modello dt{color:var(--inchiostro-2)}
.modello dd{margin:0;text-align:right;color:var(--navy);font-weight:500;font-variant-numeric:tabular-nums;white-space:nowrap}

.tabella-wrap{overflow-x:auto;margin-top:2.5rem;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:.88rem}
caption{text-align:left;font-size:.72rem;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--blu);padding-bottom:.9rem}
th,td{padding:.7rem .9rem;text-align:right;border-bottom:1px solid var(--riga);font-variant-numeric:tabular-nums}
th:first-child,td:first-child{text-align:left;font-variant-numeric:normal}
thead th{color:var(--navy);font-weight:600;border-bottom:2px solid var(--navy)}
tbody th{font-weight:400;color:var(--inchiostro-2)}
tbody td{color:var(--navy)}

.bolli{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.8rem;padding:0;list-style:none}
.bolli li{font-size:.72rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--inchiostro-2);
  border:1px solid var(--riga);border-radius:2px;padding:.4rem .8rem;background:var(--bianco)}

/* ---------- domande ---------- */
.faq{border-top:1px solid var(--riga)}
.faq details{border-bottom:1px solid var(--riga)}
.faq summary{
  cursor:pointer;padding:1.25rem 2.5rem 1.25rem 0;position:relative;list-style:none;
  font-weight:500;color:var(--navy);font-size:clamp(1rem,.97rem + .2vw,1.1rem)
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:.4rem;top:50%;width:11px;height:11px;margin-top:-7px;
  border-right:2px solid var(--blu);border-bottom:2px solid var(--blu);
  transform:rotate(45deg);transition:transform .2s
}
.faq details[open] summary::after{transform:rotate(-135deg);margin-top:-3px}
.faq summary:focus-visible{outline:2px solid var(--blu);outline-offset:3px}
.faq p{margin:0 0 1.4rem;color:var(--inchiostro-2);max-width:68ch}

/* ---------- contatti ---------- */
.persone{display:grid;gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14);grid-template-columns:1fr}
@media(min-width:640px){.persone{grid-template-columns:repeat(2,1fr)}}
.persona{background:var(--navy);padding:clamp(1.5rem,4vw,2.2rem)}
.persona b{display:block;font-size:1.25rem;font-weight:600;color:#fff}
.persona .ruolo{display:block;margin:.3rem 0 1.2rem;font-size:.74rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--blu-medio)}
.persona a{display:block;color:#D9E2EA;text-decoration:none;font-size:.98rem;padding:.22rem 0}
.persona a:hover{color:#fff;text-decoration:underline}

/* ---------- piede ---------- */
.piede{background:var(--navy-scuro);color:#8FA5B8;padding-block:3rem;font-size:.85rem}
.piede a{color:#B9CADA;text-decoration:none}
.piede a:hover{color:#fff}
.piede__in{display:flex;flex-wrap:wrap;gap:1.5rem;justify-content:space-between;align-items:flex-start}
.piede svg{width:150px;display:block;margin-bottom:1rem;color:#fff}
.piede__note{max-width:46ch;line-height:1.6}

/* logo: i colori si comandano da qui */
.logo .lettere{fill:currentColor}
.logo .anello{fill:var(--blu)}

.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
:focus-visible{outline:2px solid var(--blu);outline-offset:2px}