/* ==========================================================================
   ERREGI Ausili Medici — design system
   Palette dal logo (celeste/navy), farfalle come elemento firma.
   ========================================================================== */

:root{
  --navy:#123a5e;      /* blu profondo del logo, testo/heading */
  --navy-2:#0e2f4d;
  --blu:#3f7cc0;       /* blu Erregi primario: link, CTA, accenti */
  --blu-2:#2f68ac;
  --blu-soft:#9cc2e6;  /* farfalle, accenti tenui */
  --sky:#e8f1fa;       /* fasce chiare */
  --sky-2:#f2f8fd;
  --paper:#fbfdff;     /* sfondo pagina */
  --ink:#283744;       /* corpo testo */
  --muted:#5f7182;     /* testo secondario */
  --line:#d8e5f1;      /* bordi hairline */
  --white:#ffffff;
  --ok:#2f7d6b;

  --maxw:1200px;
  --gap:clamp(1.25rem,4vw,3rem);
  --radius:18px;
  --radius-s:12px;
  --shadow:0 1px 2px rgba(18,58,94,.05), 0 12px 34px -18px rgba(18,58,94,.28);
  --shadow-sm:0 1px 2px rgba(18,58,94,.06), 0 6px 18px -12px rgba(18,58,94,.22);

  --f-display:"Fraunces",Georgia,serif;
  --f-body:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --f-mono:"Space Mono","SFMono-Regular",ui-monospace,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;font-family:var(--f-body);color:var(--ink);background:var(--paper);
  font-size:clamp(16px,.6vw + 14.5px,17.5px);line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--blu-2);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--f-display);color:var(--navy);font-weight:500;line-height:1.12;
  letter-spacing:-.01em;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,4.6vw,3.5rem);font-weight:600}
h2{font-size:clamp(1.65rem,3.4vw,2.5rem)}
h3{font-size:clamp(1.2rem,1.8vw,1.5rem)}
p{margin:0 0 1rem}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(1.15rem,4vw,2.5rem)}
.narrow{max-width:760px}
section{position:relative}
:focus-visible{outline:3px solid var(--blu);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:auto}
.skip:focus{left:1rem;top:1rem;z-index:200;background:var(--navy);color:#fff;padding:.6rem 1rem;border-radius:8px}

/* ---- eyebrow / labels ---- */
.eyebrow{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--blu-2);margin:0 0 .9rem;display:inline-flex;align-items:center;gap:.6rem}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--blu-soft)}
.lead{font-size:clamp(1.08rem,1.4vw,1.28rem);color:var(--muted);line-height:1.6}
.code{font-family:var(--f-mono);font-size:.78em;color:var(--blu-2);background:var(--sky);
  padding:.12em .5em;border-radius:6px;letter-spacing:.02em;white-space:nowrap}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;gap:.55rem;font-weight:600;font-size:.97rem;
  padding:.82rem 1.5rem;border-radius:999px;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;text-decoration:none;line-height:1}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-primary{background:var(--navy);color:#fff;box-shadow:0 10px 22px -12px rgba(18,58,94,.7)}
.btn-primary:hover{background:var(--navy-2);color:#fff}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--blu-soft);background:var(--sky-2)}
.btn-light{background:#fff;color:var(--navy)}
.btn-arrow svg{transition:transform .2s ease}
.btn-arrow:hover svg{transform:translateX(3px)}

/* ==========================================================================
   BUTTERFLIES — signature ambient motif
   ========================================================================== */
.butterfly{position:absolute;color:var(--blu-soft);opacity:.5;pointer-events:none;z-index:0}
.butterfly svg{width:100%;height:100%;display:block}
.bf-field{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0}
@keyframes drift{
  0%{transform:translate3d(0,0,0) rotate(-4deg)}
  50%{transform:translate3d(10px,-16px,0) rotate(4deg)}
  100%{transform:translate3d(0,0,0) rotate(-4deg)}
}
.bf-anim{animation:drift 9s ease-in-out infinite}
.bf-anim.d2{animation-duration:11s;animation-delay:-3s}
.bf-anim.d3{animation-duration:13s;animation-delay:-6s}
@media (prefers-reduced-motion:reduce){.bf-anim{animation:none}}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(251,253,255,.86);
  backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;min-height:76px}
.brand{display:flex;align-items:center;gap:.7rem;flex-shrink:0}
.brand img{height:38px;width:auto}
.nav-links{display:flex;align-items:center;gap:1.6rem;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--navy);font-weight:500;font-size:.96rem;text-decoration:none;padding:.4rem 0;
  position:relative}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;
  background:var(--blu);transition:right .22s ease}
.nav-links a:hover::after,.nav-links a[aria-current="page"]::after{right:0}
.nav-right{display:flex;align-items:center;gap:1rem}
.lang{font-family:var(--f-mono);font-size:.78rem;letter-spacing:.06em;color:var(--muted);
  display:flex;gap:.35rem;align-items:center}
.lang a{color:var(--muted)}
.lang a.on{color:var(--navy);font-weight:700}
.nav-cta{white-space:nowrap;padding:.62rem 1.1rem;font-size:.9rem}
.burger{display:none;background:none;border:0;cursor:pointer;padding:.4rem;color:var(--navy)}
@media (max-width:900px){
  .nav-links,.nav .nav-cta{display:none}
  .burger{display:inline-flex}
  .nav-open .nav-links{display:flex;position:absolute;top:76px;left:0;right:0;flex-direction:column;
    background:var(--white);border-bottom:1px solid var(--line);padding:1rem clamp(1.15rem,4vw,2.5rem) 1.4rem;
    gap:.2rem;box-shadow:var(--shadow)}
  .nav-open .nav-links a{padding:.75rem 0;border-bottom:1px solid var(--sky);width:100%}
  .nav-open .nav-links .btn{margin-top:.7rem;justify-content:center}
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{background:linear-gradient(180deg,var(--sky) 0%, var(--sky-2) 60%, var(--paper) 100%);
  padding:clamp(3rem,7vw,6rem) 0 clamp(3rem,6vw,5rem);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4rem);align-items:center;
  position:relative;z-index:2}
.hero h1{margin-bottom:1rem}
.hero .lead{max-width:33ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}
.hero-media{position:relative}
.hero-media img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;object-fit:cover;aspect-ratio:5/4}
.hero-badge{position:absolute;bottom:-18px;left:-18px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:.8rem 1.1rem;box-shadow:var(--shadow-sm);display:flex;gap:.7rem;align-items:center}
.hero-badge.ch{left:auto;right:-18px}
.hero-badge b{font-family:var(--f-display);color:var(--navy);font-size:1.05rem}
.hero-badge span{font-size:.8rem;color:var(--muted);line-height:1.3}
@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;gap:2.5rem}
  .hero-media{order:-1}
}

/* trust strip under hero */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--white)}
.trust-row{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line)}
.trust-row>div{background:var(--white);padding:1.3rem clamp(.8rem,2vw,1.4rem);display:flex;gap:.75rem;align-items:flex-start}
.trust-row svg{flex-shrink:0;color:var(--blu);margin-top:2px}
.trust-row b{display:block;color:var(--navy);font-size:.98rem;font-family:var(--f-display);font-weight:600}
.trust-row span{font-size:.83rem;color:var(--muted);line-height:1.4}
@media (max-width:980px){.trust-row{grid-template-columns:repeat(3,1fr)}}
@media (max-width:820px){.trust-row{grid-template-columns:repeat(2,1fr)}}
@media (max-width:460px){.trust-row{grid-template-columns:1fr}}

/* ==========================================================================
   SECTIONS
   ========================================================================== */
.sec{padding:clamp(3.2rem,7vw,6rem) 0}
.sec-sky{background:var(--sky-2)}
.sec-navy{background:linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 100%);color:#e9f1fa}
.sec-navy h2,.sec-navy h3{color:#fff}
.sec-navy .lead{color:#bcd3e8}
.sec-head{max-width:720px;margin-bottom:clamp(2rem,4vw,3rem)}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-head.center .eyebrow{justify-content:center}

/* line/product grid */
.grid{display:grid;gap:clamp(1.1rem,2.4vw,1.8rem)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.g-3,.g-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.g-2,.g-3,.g-4{grid-template-columns:1fr}}

.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .2s ease, box-shadow .2s ease;position:relative}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card-media{aspect-ratio:4/3;background:#fff;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:contain;background:#fff;padding:4%;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:1.3rem 1.4rem 1.5rem;display:flex;flex-direction:column;gap:.55rem;flex:1}
.card-body h3{margin:0}
.card-body p{margin:0;color:var(--muted);font-size:.92rem}
.card-link{margin-top:auto;padding-top:.4rem;color:var(--blu-2);font-weight:600;font-size:.9rem;
  display:inline-flex;align-items:center;gap:.4rem}
.card a.stretched::after{content:"";position:absolute;inset:0}

/* product mini-cards (within a line page) */
.specs{width:100%;border-collapse:collapse;margin:1.3rem 0}
.specs th,.specs td{text-align:left;padding:.6rem .2rem;border-bottom:1px solid var(--line);font-size:.92rem}
.specs th{color:var(--muted);font-weight:500;width:38%}
.specs td{color:var(--navy);font-weight:500}
.cat-block{margin-bottom:2.4rem}
.cat-block:last-of-type{margin-bottom:0}
.cat-title{font-family:var(--f-body);font-size:1.05rem;font-weight:700;color:var(--navy);
  margin:0 0 1.1rem;padding-bottom:.55rem;border-bottom:1px solid var(--line)}
.prod{display:flex;gap:1.1rem;padding:1.1rem;border:1px solid var(--line);border-radius:var(--radius-s);
  background:var(--white);align-items:center}
.prod-img{width:104px;height:104px;flex-shrink:0;border-radius:10px;overflow:hidden;background:var(--sky)}
.prod-img img{width:100%;height:100%;object-fit:cover}
.prod-info h4{font-family:var(--f-body);font-weight:600;color:var(--navy);font-size:1rem;margin:0 0 .25rem}
.prod-info p{margin:0;font-size:.86rem;color:var(--muted)}
.prod-meta{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.5rem}

/* feature list */
.features{list-style:none;margin:0;padding:0;display:grid;gap:.9rem}
.features li{display:flex;gap:.75rem;align-items:flex-start}
.features svg{color:var(--blu);flex-shrink:0;margin-top:3px}
.features b{color:var(--navy)}

/* numbers */
.numbers{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.14);
  border-radius:var(--radius);overflow:hidden}
.numbers>div{background:transparent;padding:clamp(1.6rem,3vw,2.4rem);text-align:center}
.numbers .n{font-family:var(--f-display);font-size:clamp(2.4rem,5vw,3.4rem);font-weight:600;color:#fff;line-height:1}
.numbers .l{color:#bcd3e8;font-size:.92rem;margin-top:.5rem;letter-spacing:.02em}
@media (max-width:620px){.numbers{grid-template-columns:1fr}}

/* reviews */
.review{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem 1.7rem;
  display:flex;flex-direction:column;gap:.9rem}
.stars{color:#f1a13a;letter-spacing:2px;font-size:.95rem}
.review p{margin:0;font-size:.97rem;color:var(--ink)}
.review .who{margin-top:auto;font-weight:600;color:var(--navy);font-size:.9rem}

/* split media+text */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.split.rev .split-media{order:2}
.split-media img{border-radius:var(--radius);box-shadow:var(--shadow-sm);width:100%;object-fit:cover;aspect-ratio:4/3}
@media (max-width:820px){.split,.split.rev{grid-template-columns:1fr;gap:2rem}
  .split.rev .split-media{order:0}}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:.9rem}
.gallery img{border-radius:var(--radius-s);aspect-ratio:4/3;object-fit:cover;width:100%;box-shadow:var(--shadow-sm)}
.gallery img.tall{grid-row:span 2;aspect-ratio:3/4;height:100%}
@media (max-width:700px){.gallery{grid-template-columns:repeat(2,1fr)}.gallery img.tall{grid-row:auto;aspect-ratio:4/3}}

/* CTA band */
.cta-band{background:linear-gradient(150deg,var(--navy) 0%,var(--blu-2) 130%);color:#fff;border-radius:calc(var(--radius) + 6px);
  padding:clamp(2.2rem,5vw,3.6rem);position:relative;overflow:hidden;text-align:center}
.cta-band h2{color:#fff;margin-bottom:.6rem}
.cta-band p{color:#cfe0f1;max-width:52ch;margin-inline:auto}
.cta-band .btn{margin-top:1.4rem}

/* breadcrumb */
.crumb{font-size:.82rem;color:var(--muted);padding-top:1.3rem}
.crumb a{color:var(--muted)}
.crumb span{color:var(--navy)}

/* page hero (interior) */
.phero{background:linear-gradient(180deg,var(--sky) 0%,var(--paper) 100%);padding:clamp(2rem,4vw,3rem) 0 1.2rem;
  overflow:hidden}
.phero h1{margin:.4rem 0 .8rem}
.phero .lead{max-width:60ch}
.phero+.sec{padding-top:1.8rem}

/* ==========================================================================
   BLOG / ARTICLE
   ========================================================================== */
.article{max-width:760px;margin-inline:auto}
.article-hero img{width:100%;aspect-ratio:16/8;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-bottom:1.6rem}
.article .meta{font-family:var(--f-mono);font-size:.76rem;letter-spacing:.08em;color:var(--muted);text-transform:uppercase;margin-bottom:.6rem}
.article h2{margin-top:2.2rem}
.article h3{margin-top:1.6rem;color:var(--navy)}
.article ul{padding-left:1.1rem}
.article li{margin-bottom:.5rem}
.article .callout{background:var(--sky);border-left:3px solid var(--blu);border-radius:0 12px 12px 0;
  padding:1.1rem 1.3rem;margin:1.6rem 0}
.article .callout p:last-child{margin:0}
.faq{margin-top:2rem}
.faq details{border:1px solid var(--line);border-radius:12px;padding:.2rem 1.1rem;margin-bottom:.7rem;background:#fff}
.faq summary{cursor:pointer;font-weight:600;color:var(--navy);padding:.9rem 0;list-style:none;
  display:flex;justify-content:space-between;gap:1rem;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--f-mono);color:var(--blu);font-size:1.3rem;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding-bottom:1rem;margin:0;color:var(--muted)}

.tag{display:inline-block;font-family:var(--f-mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--blu-2);background:var(--sky);padding:.3rem .6rem;border-radius:999px}

/* ==========================================================================
   FORM (contatti)
   ========================================================================== */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.field{display:flex;flex-direction:column;gap:.35rem;margin-bottom:.1rem}
.field.full{grid-column:1/-1}
.field label{font-size:.85rem;font-weight:600;color:var(--navy)}
.field input,.field select,.field textarea{font-family:inherit;font-size:.97rem;padding:.75rem .9rem;
  border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);width:100%}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blu);box-shadow:0 0 0 3px rgba(63,124,192,.15)}
.field textarea{min-height:130px;resize:vertical}
.hp{position:absolute;left:-9999px;opacity:0}
.consent{display:flex;gap:.6rem;align-items:flex-start;font-size:.86rem;color:var(--muted)}
.consent input{width:auto;margin-top:.25rem}
.form-note{font-size:.82rem;color:var(--muted);margin-top:.8rem}
@media (max-width:600px){.form-grid{grid-template-columns:1fr}}

.info-list{list-style:none;margin:0;padding:0;display:grid;gap:1.2rem}
.info-list li{display:flex;gap:.85rem;align-items:flex-start}
.info-list svg{color:var(--blu);flex-shrink:0;margin-top:3px}
.info-list b{display:block;color:var(--navy);font-family:var(--f-display);font-weight:600}
.info-list a{color:var(--ink)}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{background:linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 100%);color:#c7dbee;
  padding:clamp(2.8rem,5vw,4rem) 0 2rem;position:relative;overflow:hidden}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:2rem;position:relative;z-index:2}
.footer-grid h4{color:#fff;font-family:var(--f-body);font-weight:600;font-size:.9rem;letter-spacing:.04em;
  text-transform:uppercase;margin:0 0 1rem}
.footer-brand img{height:40px;filter:brightness(0) invert(1);margin-bottom:1rem}
.footer-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:.55rem}
.footer-grid a{color:#c7dbee;font-size:.92rem}
.footer-grid a:hover{color:#fff}
.footer-grid p{font-size:.9rem;color:#a9c4dc;margin:0 0 .5rem}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:2.4rem;padding-top:1.4rem;
  display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;font-size:.8rem;color:#8fb0cd;position:relative;z-index:2}
.footer-bottom a{color:#8fb0cd}
@media (max-width:820px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr}}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease, transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

.mt0{margin-top:0}.mb0{margin-bottom:0}.center{text-align:center}

/* ==========================================================================
   BANNER — slide fotografica a tutta larghezza (home)
   ========================================================================== */
.banner{position:relative;width:100%;min-height:clamp(420px,58vw,640px);display:flex;align-items:center;overflow:hidden;background:#eef2f4}
.banner-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:78% 30%}
.banner::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg, rgba(238,244,248,.94) 0%, rgba(238,244,248,.78) 34%, rgba(238,244,248,.18) 62%, rgba(238,244,248,0) 80%)}
.banner-inner{position:relative;z-index:2;width:100%}
.banner-copy{max-width:560px;padding:clamp(2.4rem,6vw,4rem) 0}
.banner-copy h2{font-size:clamp(1.9rem,4.2vw,3.1rem);font-weight:600;margin-bottom:.7rem}
.banner-copy .lead{color:#41566b;max-width:44ch}
.banner-copy .btn{margin-top:1.4rem}
@media (max-width:680px){
  .banner{min-height:0;align-items:flex-end}
  .banner-img{object-position:72% 20%}
  .banner::after{background:linear-gradient(180deg, rgba(238,244,248,.1) 0%, rgba(238,244,248,.55) 38%, rgba(251,253,255,.96) 72%)}
  .banner-copy{padding:min(58vw,340px) 0 2.2rem;max-width:100%}
}

.split-media.media-contain img{object-fit:contain;background:#fff;padding:7%;max-height:440px}

.line-hero-media{max-width:520px;margin:0 auto}
.line-hero-media img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.line-hero-media .split-media.media-contain img{padding:5%;background:#fff;object-fit:contain}