/* =====================================================
   MACCHINARI PRO ESTETICA — Design system
   Impatto editoriale (titoli enormi, uppercase, alto
   contrasto) fuso con codici premium del settore
   medical-aesthetic (nero profondo, luce rossa, teal).

   Struttura del file
   01. Token
   02. Reset & base
   03. Layout (container, section, grid)
   04. Tipografia
   05. Bottoni
   06. Topbar / Header / Nav
   07. Hero
   08. Marquee
   09. Card (benefit, category, product)
   10. Step, logo strip, testimonial, FAQ
   11. CTA band & form
   12. Footer
   13. Gallery & lightbox
   14. Pagine interne (breadcrumb, page hero, split)
   15. Utility
   16. Responsive (tablet → mobile → small)
   17. Accessibilità & preferenze utente
   ===================================================== */

/* ------------------------------------------------------
   01. TOKEN
   ------------------------------------------------------ */
:root{
  --black:#0b0b0d;
  --black-soft:#131316;
  --charcoal:#1c1c20;
  --white:#ffffff;
  --off-white:#f4f2ef;
  --red:#e02039;
  --red-deep:#b3122a;
  --red-glow:#ff4d63;
  --teal:#1ec8c3;
  --teal-deep:#0b7a76;
  --gold:#cbab6d;
  /* Grigio del testo secondario. Il valore chiaro (#8a8a92) su bianco
     dava 3,4:1, sotto la soglia AA di 4,5:1. Il token vale quindi la
     versione scura per default e viene riportato a quella chiara solo
     nei contesti su fondo nero (vedi blocco più sotto), così anche gli
     style inline che usano var(--gray) restano leggibili ovunque. */
  --gray:#5f5f66;
  --gray-on-dark:#8a8a92;
  --muted:#5f5f66;
  --gray-light:#d8d6d2;
  --line:rgba(255,255,255,.12);
  --line-dark:rgba(0,0,0,.1);
  --radius:2px;
  --maxw:1280px;

  /* Altezza reale dell'header sticky: aggiornata da js/main.js.
     Serve sia al menu mobile sia allo scroll sulle ancore. */
  --header-h:76px;

  /* Padding orizzontale unico per tutto il sito */
  --gutter:clamp(18px,5vw,28px);
  /* Ritmo verticale delle sezioni */
  --section-y:clamp(56px,8.5vw,104px);
  --section-y-tight:clamp(40px,6vw,64px);

  --ff-display:"Archivo Black", "Archivo", "Helvetica Neue", Arial, sans-serif;
  --ff-head:"Archivo", "Helvetica Neue", Arial, sans-serif;
  --ff-body:"Inter", "Helvetica Neue", Arial, sans-serif;
  --shadow:0 20px 60px rgba(0,0,0,.35);
}

/* ------------------------------------------------------
   02. RESET & BASE
   ------------------------------------------------------ */
*,*::before,*::after{box-sizing:border-box;}

html{
  scroll-behavior:smooth;
  /* le ancore non finiscono più sotto l'header sticky */
  scroll-padding-top:calc(var(--header-h) + 16px);
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
}

body{
  margin:0;
  font-family:var(--ff-body);
  background:var(--white);
  color:var(--black);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
  /* rete di sicurezza: nessuno scroll orizzontale accidentale.
     Le cause reali sono risolte a monte (min-width:0 sui figli
     flex/grid, type scale fluido, menu senza off-canvas). */
  overflow-x:hidden;
}

/* Blocco lo scroll di fondo quando menu o lightbox sono aperti */
body.is-locked{overflow:hidden;}

/* height:auto è indispensabile ora che gli <img> hanno width/height
   nel markup: senza, l'immagine ridimensionata si deformerebbe.
   Le regole specifiche (hero, card, gallery) restano prioritarie. */
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;-webkit-tap-highlight-color:rgba(230,39,63,.18);}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--ff-head);font-weight:800;letter-spacing:-.01em;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;-webkit-tap-highlight-color:rgba(230,39,63,.18);}
table{max-width:100%;}

/* Le parole lunghissime (fotobiomodulazione, multisensoriale…)
   non devono mai sfondare il viewport */
h1,h2,h3,h4,p,li,td,th,summary,a{overflow-wrap:break-word;}

/* Contesti su fondo scuro: il grigio secondario torna chiaro */
.topbar,.site-header,.hero,.page-hero,.marquee,.cta-band,
.section--black,.section--charcoal,.site-footer,.lightbox,
.benefit-card--dark,.benefit-card--black{
  --gray:var(--gray-on-dark);
  --muted:#c7c6cc;
}
/* Componenti chiari annidati in una sezione scura: si torna al grigio scuro */
.section--black .benefit-card:not(.benefit-card--dark):not(.benefit-card--black),
.section--charcoal .benefit-card:not(.benefit-card--dark):not(.benefit-card--black),
.section--black .product-card,.section--charcoal .product-card,
.section--black .testimonial,.section--charcoal .testimonial,
.section--black .form-panel,.section--charcoal .form-panel{
  --gray:#5f5f66;
  --muted:#5f5f66;
}

/* ------------------------------------------------------
   03. LAYOUT
   ------------------------------------------------------ */
.container{
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:max(var(--gutter), env(safe-area-inset-left));
  padding-right:max(var(--gutter), env(safe-area-inset-right));
  width:100%;
  min-width:0;
}
.section{padding:var(--section-y) 0;}
.section--tight{padding:var(--section-y-tight) 0;}
.section--black{background:var(--black);color:var(--white);}
.section--charcoal{background:var(--charcoal);color:var(--white);}
.section--off{background:var(--off-white);}

.grid{display:grid;gap:28px;}
.grid--3{grid-template-columns:repeat(3,1fr);}
.grid--2{grid-template-columns:repeat(2,1fr);}
.grid--4{grid-template-columns:repeat(4,1fr);}
/* i figli di grid/flex hanno min-width:auto per default: senza
   min-width:0 un contenuto largo (immagine, tabella, parola lunga)
   allarga l'intera colonna e sfonda la pagina */
.grid>*,.split>*{min-width:0;}

/* ------------------------------------------------------
   04. TIPOGRAFIA
   ------------------------------------------------------ */
.eyebrow{
  font-family:var(--ff-head);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--red);
  display:flex;align-items:center;gap:10px;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--red);display:inline-block;flex:none;}
.eyebrow--light{color:var(--teal);}
/* su off-white il rosso pieno scende a 4,2:1 */
.section--off .eyebrow{color:var(--red-deep);}
.section--off .eyebrow::before{background:var(--red-deep);}

/* Scala fluida: il minimo è calcolato perché la parola più lunga
   del sito ("FOTOBIOMODULAZIONE", 18 caratteri in Archivo Black)
   entri anche su schermi da 320px. */
.display-xl{
  font-family:var(--ff-display);
  font-size:clamp(23px,6.2vw,60px);
  line-height:1.05;
  text-transform:uppercase;
  letter-spacing:-.01em;
}
.display-l{
  font-family:var(--ff-display);
  font-size:clamp(22px,5.6vw,54px);
  line-height:1.06;
  text-transform:uppercase;
}
.display-m{
  font-family:var(--ff-display);
  font-size:clamp(19px,4vw,32px);
  line-height:1.14;
  text-transform:uppercase;
}
.lede{font-size:clamp(16px,1.6vw,19px);color:var(--muted);max-width:640px;font-weight:400;}
.lede--on-dark{color:#c7c6cc;}
.body-copy{font-size:16px;color:#3a3a3f;max-width:640px;}
.body-copy--on-dark{color:#c7c6cc;}

/* ------------------------------------------------------
   05. BOTTONI
   ------------------------------------------------------ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:16px 30px;
  min-height:48px;              /* target touch conforme */
  font-family:var(--ff-head);
  font-weight:700;
  font-size:13px;
  letter-spacing:.14em;
  text-transform:uppercase;
  text-align:center;
  border:1px solid transparent;
  border-radius:var(--radius);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--red);color:var(--white);}
.btn--primary:hover{background:var(--red-deep);}
.btn--outline{border-color:currentColor;color:var(--white);background:transparent;}
.btn--outline:hover{background:var(--white);color:var(--black);}
.btn--outline-dark{border-color:var(--black);color:var(--black);background:transparent;}
.btn--outline-dark:hover{background:var(--black);color:var(--white);}
.btn--teal{background:var(--teal);color:var(--black);}
/* WhatsApp: verde di marca con testo scuro. Il bianco su questo verde
   sta a 2:1, ben sotto la soglia AA; il testo scuro arriva a 9,8:1. */
.btn--whatsapp{background:#25d366;color:#0b0b0d;}
.btn--whatsapp:hover{background:#1eb457;color:#0b0b0d;}
.btn--whatsapp svg{flex:none;}
.btn--teal:hover{background:var(--teal-deep);color:var(--white);}
.btn--block{width:100%;}
.btn-row{display:flex;gap:16px;flex-wrap:wrap;}

/* ------------------------------------------------------
   06. TOPBAR / HEADER / NAV
   ------------------------------------------------------ */
.topbar{background:var(--black);color:#cfcfd4;font-size:12.5px;letter-spacing:.04em;}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding-top:9px;padding-bottom:9px;gap:14px;}
.topbar a{opacity:.85;}
.topbar a:hover{opacity:1;color:var(--teal);}
.topbar__links{display:flex;gap:22px;align-items:center;flex:none;}
.lang-switch{display:flex;gap:2px;align-items:center;}
.lang-switch a{
  font-weight:700;opacity:.55;padding:6px 9px;border-radius:2px;
  display:inline-flex;align-items:center;justify-content:center;min-width:34px;
}
.lang-switch a.active{opacity:1;color:var(--red-glow);}

.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,11,13,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:16px;}
.logo{
  font-family:var(--ff-display);color:var(--white);font-size:19px;
  letter-spacing:.01em;text-transform:uppercase;line-height:1;
  flex:0 1 auto;min-width:0;
}
.logo span{color:var(--red-glow);}
.logo small{
  display:block;font-family:var(--ff-body);font-weight:500;font-size:10px;
  letter-spacing:.22em;color:var(--gray);margin-top:5px;text-transform:uppercase;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.nav__links{display:flex;gap:34px;align-items:center;min-width:0;}
.nav__links a{
  font-family:var(--ff-head);font-size:12.5px;font-weight:700;letter-spacing:.09em;
  text-transform:uppercase;color:#e9e9ec;position:relative;padding:6px 0;
}
.nav__links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--red);
  transform:scaleX(0);transform-origin:right;transition:transform .25s ease;
}
.nav__links a:hover::after,.nav__links a.active::after{transform:scaleX(1);transform-origin:left;}
.nav__cta{display:flex;gap:12px;align-items:center;flex:none;}
.nav__toggle{
  display:none;background:none;border:none;color:var(--white);font-size:22px;
  width:46px;height:46px;align-items:center;justify-content:center;border-radius:2px;
}

/* ------------------------------------------------------
   07. HERO
   ------------------------------------------------------ */
.hero{
  position:relative;background:var(--black);color:var(--white);
  min-height:min(92vh,820px);
  display:flex;align-items:center;
  overflow:hidden;
}
.hero__bg{position:absolute;inset:0;z-index:0;}
.hero__bg img{width:100%;height:100%;object-fit:cover;opacity:.55;}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,11,13,.97) 18%,rgba(11,11,13,.72) 52%,rgba(11,11,13,.3) 100%);
}
.hero__content{position:relative;z-index:1;padding-block:120px 90px;min-width:0;flex:1 1 auto;}
.hero__badge{
  display:inline-flex;align-items:center;gap:9px;
  border:1px solid var(--line);border-radius:40px;padding:8px 16px;
  font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gray-light);margin-bottom:28px;max-width:100%;
}
.hero__badge .dot{width:7px;height:7px;border-radius:50%;background:var(--red-glow);box-shadow:0 0 12px var(--red-glow);flex:none;}
.hero h1{color:var(--white);max-width:920px;}
.hero h1 em{font-style:normal;color:var(--red-glow);}
.hero .lede{margin-top:26px;}
.hero__actions{margin-top:42px;}
.hero__stats{display:flex;gap:48px;margin-top:74px;flex-wrap:wrap;}
.stat b{display:block;font-family:var(--ff-display);font-size:clamp(26px,3.4vw,34px);color:var(--white);}
.stat span{display:block;font-size:12px;letter-spacing:.06em;color:var(--gray);text-transform:uppercase;margin-top:6px;}

/* ------------------------------------------------------
   08. MARQUEE
   ------------------------------------------------------ */
.marquee{background:var(--red);overflow:hidden;padding:14px 0;}
.marquee__track{display:flex;gap:60px;white-space:nowrap;animation:scroll 26s linear infinite;width:max-content;}
.marquee__track span{font-family:var(--ff-display);font-size:16px;color:var(--white);text-transform:uppercase;letter-spacing:.04em;}
@keyframes scroll{from{transform:translateX(0);}to{transform:translateX(-50%);}}

/* ------------------------------------------------------
   09. CARD
   ------------------------------------------------------ */
.benefit-card{
  display:block;   /* usata anche come <a> nella pagina 404 */
  background:var(--white);border:1px solid #ececec;padding:36px 30px;border-radius:var(--radius);
  /* colore esplicito: dentro una sezione scura la card resta bianca e
     senza questa riga i titoli erediterebbero il bianco della sezione,
     diventando invisibili */
  color:var(--black);
  transition:transform .25s ease, box-shadow .25s ease;
}
.benefit-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);}
.benefit-card .num{font-family:var(--ff-display);font-size:13px;color:var(--red);letter-spacing:.1em;}
.benefit-card h3{margin-top:18px;font-size:19px;text-transform:uppercase;}
.benefit-card p{margin-top:12px;color:var(--muted);font-size:14.5px;}
.benefit-card--dark,.benefit-card--black{border-color:var(--line);color:var(--white);}
.benefit-card--dark{background:var(--charcoal);}
.benefit-card--black{background:var(--black);}
.benefit-card--dark h3,.benefit-card--black h3{color:var(--white);}
.benefit-card--dark p,.benefit-card--black p{color:#c7c6cc;}
/* il rosso pieno su fondo scuro scende a 3,5:1: qui serve la variante glow */
.benefit-card--dark .num,.benefit-card--black .num{color:var(--red-glow);}
.benefit-card--dark:hover,.benefit-card--black:hover{box-shadow:0 20px 60px rgba(0,0,0,.55);}

.category-card{
  position:relative;border-radius:var(--radius);overflow:hidden;
  min-height:clamp(340px,58vw,460px);
  display:flex;flex-direction:column;justify-content:flex-end;
  background:var(--black);color:var(--white);
}
.category-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62;transition:transform .5s ease, opacity .3s ease;}
.category-card:hover img{transform:scale(1.06);opacity:.75;}
.category-card::before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.92) 10%,rgba(0,0,0,.15) 65%);z-index:1;}
.category-card__body{position:relative;z-index:2;padding:clamp(22px,4vw,34px);}
.category-card__tag{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--teal);font-weight:700;}
.category-card h3{font-size:clamp(21px,3vw,34px);margin-top:12px;text-transform:uppercase;}
.category-card p{margin-top:12px;color:#d7d6db;max-width:420px;font-size:14.5px;}
.category-card .btn{margin-top:24px;}

.product-card{
  background:var(--white);border:1px solid #e7e5e1;border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:box-shadow .25s ease,transform .25s ease;
}
.product-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);}
.product-card__media{background:var(--black);position:relative;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;overflow:hidden;}
.product-card__media img{width:100%;height:100%;object-fit:cover;}
.product-card__badge{position:absolute;top:14px;left:14px;background:var(--red);color:#fff;font-size:11px;font-weight:700;letter-spacing:.1em;padding:6px 11px;text-transform:uppercase;border-radius:2px;z-index:2;}
.product-card__body{padding:clamp(20px,3vw,26px) clamp(20px,3vw,26px) clamp(22px,3vw,28px);display:flex;flex-direction:column;flex:1;}
.product-card__body h3{font-size:clamp(18px,2vw,21px);text-transform:uppercase;}
.product-card__sub{font-size:12.5px;color:var(--red);font-weight:700;letter-spacing:.06em;margin-top:6px;text-transform:uppercase;}
.spec-table{width:100%;margin-top:18px;border-collapse:collapse;font-size:13.5px;table-layout:fixed;}
.spec-table td{padding:7px 0;border-bottom:1px solid #ececec;color:#4a4a4f;vertical-align:top;}
.spec-table td:first-child{color:#6b6b70;width:46%;text-transform:uppercase;font-size:11.5px;letter-spacing:.04em;padding-right:10px;}
.spec-table td:last-child{text-align:right;font-weight:600;color:#1a1a1a;}
.product-card__foot{margin-top:auto;padding-top:22px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}
.price{font-family:var(--ff-display);font-size:19px;}
.price small{display:block;font-family:var(--ff-body);font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:600;margin-top:2px;}

/* ------------------------------------------------------
   10. STEP / LOGHI / TESTIMONIAL / FAQ
   ------------------------------------------------------ */
.steps{counter-reset:step;}
.step{display:flex;gap:22px;padding:26px 0;border-top:1px solid var(--line-dark);}
.step:last-child{border-bottom:1px solid var(--line-dark);}
.step__num{font-family:var(--ff-display);font-size:clamp(26px,4vw,34px);color:var(--red);min-width:64px;flex:none;}
.step h3{text-transform:uppercase;font-size:17px;}
.step p{margin-top:8px;color:var(--muted);font-size:14.5px;max-width:560px;}
.section--black .spec-table td:first-child,
.section--charcoal .spec-table td:first-child{color:#a9a9b0;}
.section--black .spec-table td,
.section--charcoal .spec-table td{border-color:var(--line);}
.section--black .step{border-color:var(--line);}
.section--black .step p{color:#c7c6cc;}

.logos-strip{display:flex;flex-wrap:wrap;gap:clamp(20px,4vw,40px);align-items:center;justify-content:space-between;opacity:.75;}
.logos-strip span{font-family:var(--ff-head);font-weight:800;letter-spacing:.06em;text-transform:uppercase;font-size:15px;color:var(--muted);}

.testimonial{background:var(--white);color:var(--black);border:1px solid #ececec;padding:clamp(24px,3.5vw,34px);border-radius:var(--radius);}
.testimonial p{font-size:16.5px;color:#2c2c2f;}
.testimonial__by{margin-top:20px;display:flex;align-items:center;gap:14px;}
.avatar{width:42px;height:42px;flex:none;border-radius:50%;background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--ff-display);font-size:14px;}
.testimonial__by b{display:block;font-size:13.5px;}
.testimonial__by span{display:block;font-size:12px;color:var(--muted);}
.stars{color:#8a6c26;letter-spacing:2px;font-size:14px;margin-bottom:14px;}

.faq-item{border-top:1px solid var(--line-dark);}
.faq-item:last-child{border-bottom:1px solid var(--line-dark);}
.faq-item summary{
  padding:20px 0;font-family:var(--ff-head);font-weight:700;font-size:16px;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:16px;list-style:none;
  min-height:56px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:24px;color:var(--red);font-family:var(--ff-body);flex:none;line-height:1;}
.faq-item[open] summary::after{content:"–";}
.faq-item .faq-a{padding:0 0 24px;color:var(--muted);font-size:15px;max-width:680px;}

/* ------------------------------------------------------
   11. CTA BAND & FORM
   ------------------------------------------------------ */
.cta-band{background:var(--red);color:var(--white);padding:clamp(52px,7vw,80px) 0;text-align:center;}
.cta-band .eyebrow{color:#fff;}
.cta-band .eyebrow::before{background:#fff;}
.cta-band h2{color:var(--white);}
.cta-band p{color:rgba(255,255,255,.85);margin:18px auto 34px;max-width:560px;}
.cta-band .btn-row{justify-content:center;}
.cta-band .btn--primary{background:var(--black);}
.cta-band .btn--primary:hover{background:#000;}

.form-panel{background:var(--white);border:1px solid #ececec;padding:clamp(22px,4vw,40px);border-radius:var(--radius);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid #d8d6d2;padding:13px 14px;font-family:var(--ff-body);
  /* 16px: sotto questa soglia iOS Safari zooma al focus */
  font-size:16px;border-radius:2px;background:#fff;color:var(--black);
  min-height:48px;
}
.field select{appearance:none;-webkit-appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,#8a8a92 50%),linear-gradient(135deg,#8a8a92 50%,transparent 50%);
  background-position:calc(100% - 20px) calc(50% + 2px),calc(100% - 14px) calc(50% + 2px);
  background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:40px;}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--red);outline-offset:1px;border-color:transparent;}
.field textarea{min-height:120px;resize:vertical;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);margin-bottom:20px;}
.consent input{margin-top:2px;width:22px;height:22px;flex:none;accent-color:var(--red);}

/* Pannello mostrato dopo l'invio del form. Non dichiara "inviato":
   il sito non ha un backend e su molti telefoni mailto: non apre
   nulla, quindi qui diamo comunque il messaggio pronto da copiare. */
.form-confirm{
  margin-top:18px;padding:16px 18px;
  border:1px solid var(--teal);border-left-width:3px;border-radius:2px;
  background:#f2fbfa;font-size:14px;line-height:1.55;color:#2c2c2f;
}
.form-confirm strong{color:var(--black);}
.form-confirm a{color:var(--teal-deep);font-weight:600;text-decoration:underline;}
.form-confirm__text{
  width:100%;margin-top:12px;padding:12px;
  border:1px solid #d8d6d2;border-radius:2px;background:#fff;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;
  line-height:1.5;color:#2c2c2f;resize:vertical;
}
.form-confirm .btn{margin-top:12px;}
.form-confirm--ok{border-color:var(--teal);background:#f2fbfa;}
.form-confirm--error{border-color:var(--red);background:#fdf3f4;}
.form-confirm--error a{color:var(--red-deep);}
@media(max-width:640px){.form-confirm .btn{width:100%;}}

/* ------------------------------------------------------
   12. FOOTER
   ------------------------------------------------------ */
.site-footer{background:var(--black);color:#c7c6cc;padding-top:clamp(52px,7vw,80px);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:clamp(40px,5vw,60px);border-bottom:1px solid var(--line);}
.footer-grid h3{color:#fff;font-size:12px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:20px;font-family:var(--ff-head);}
.footer-grid li{margin-bottom:11px;font-size:14px;}
.footer-grid a:hover{color:var(--red-glow);}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:26px 0;font-size:12px;color:#7d7d84;flex-wrap:wrap;gap:12px;}
.footer-social{display:flex;gap:16px;}
.footer-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px;}
.badge{border:1px solid var(--line);padding:7px 12px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;border-radius:20px;color:#c7c6cc;}

/* ------------------------------------------------------
   13. GALLERY & LIGHTBOX
   ------------------------------------------------------ */
.gallery{position:relative;min-width:0;}
.gallery__main{
  position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;
  background:#000;box-shadow:var(--shadow);cursor:zoom-in;
}
.gallery__main img{width:100%;height:100%;object-fit:cover;display:block;transition:opacity .25s ease;}
.gallery--doc .gallery__main{aspect-ratio:1275/1800;background:#fff;}
.gallery--doc .gallery__main img{object-fit:contain;}
.gallery--doc .gallery__thumbs img{aspect-ratio:1275/1800;height:auto;object-fit:cover;}
.gallery__arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:3;
  width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.35);
  background:rgba(11,11,13,.55);color:#fff;font-size:18px;display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .2s ease;backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);
}
.gallery__arrow:hover{background:rgba(230,39,63,.85);border-color:transparent;}
.gallery__arrow--prev{left:14px;}
.gallery__arrow--next{right:14px;}
.gallery__zoom-hint{
  position:absolute;bottom:14px;right:14px;z-index:3;background:rgba(11,11,13,.6);color:#fff;
  font-size:11px;letter-spacing:.06em;text-transform:uppercase;padding:7px 12px;border-radius:20px;
  display:flex;align-items:center;gap:6px;pointer-events:none;
}
.gallery__thumbs{
  display:flex;gap:10px;margin-top:14px;overflow-x:auto;padding-bottom:6px;
  scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
}
.gallery__thumbs img{
  width:76px;height:58px;object-fit:cover;border-radius:4px;cursor:pointer;opacity:.5;
  border:2px solid transparent;transition:opacity .2s ease,border-color .2s ease;
  flex-shrink:0;scroll-snap-align:start;
}
.gallery__thumbs img:hover{opacity:.85;}
.gallery__thumbs img.active{opacity:1;border-color:var(--red);}

.lightbox{
  position:fixed;inset:0;z-index:200;background:rgba(6,6,7,.94);
  display:none;align-items:center;justify-content:center;
  padding:clamp(14px,4vw,40px);
  padding-top:max(clamp(14px,4vw,40px),env(safe-area-inset-top));
  padding-bottom:max(clamp(14px,4vw,40px),env(safe-area-inset-bottom));
}
.lightbox.open{display:flex;}
.lightbox__img{max-width:min(1400px,92vw);max-height:82vh;object-fit:contain;border-radius:2px;box-shadow:0 30px 80px rgba(0,0,0,.6);}
.lightbox__close{
  position:absolute;top:24px;right:28px;width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.25);color:#fff;font-size:20px;
  display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:2;
}
.lightbox__close:hover{background:var(--red);border-color:transparent;}
.lightbox__arrow{
  position:absolute;top:50%;transform:translateY(-50%);width:52px;height:52px;border-radius:50%;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.25);color:#fff;font-size:22px;
  display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:2;
}
.lightbox__arrow:hover{background:var(--red);border-color:transparent;}
.lightbox__arrow--prev{left:24px;}
.lightbox__arrow--next{right:24px;}
.lightbox__counter{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);color:#c7c6cc;font-size:12.5px;letter-spacing:.06em;}

/* ------------------------------------------------------
   14. PAGINE INTERNE
   ------------------------------------------------------ */
.breadcrumb{font-size:12px;color:var(--gray);letter-spacing:.03em;}
.breadcrumb a:hover{color:var(--red);}

.page-hero{background:var(--black);color:#fff;padding:clamp(40px,6vw,60px) 0 clamp(46px,7vw,70px);}
.page-hero .lede{margin-top:18px;}

.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,64px);align-items:center;}
.split img{border-radius:var(--radius);}

/* ------------------------------------------------------
   15. UTILITY
   ------------------------------------------------------ */
.mt-0{margin-top:0;}
.mt-8{margin-top:8px;}.mt-16{margin-top:16px;}.mt-24{margin-top:24px;}
.mt-32{margin-top:32px;}.mt-48{margin-top:clamp(32px,5vw,48px);}.mt-64{margin-top:clamp(40px,6vw,64px);}
.center{text-align:center;margin-left:auto;margin-right:auto;}
.section-head{max-width:720px;margin-bottom:clamp(34px,5vw,56px);}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.tag{border:1px solid var(--line-dark);padding:7px 14px;font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;border-radius:20px;color:#4d4d52;}
.section--black .tag,.section--charcoal .tag{border-color:var(--line);color:#c7c6cc;}
/* wrapper per tabelle larghe nelle pagine di contenuto */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}

/* ------------------------------------------------------
   16. RESPONSIVE
   ------------------------------------------------------ */

/* --- Tablet orizzontale --- */
@media(max-width:1080px){
  .nav__links{gap:22px;}
  .nav__links a{font-size:11.5px;letter-spacing:.06em;}
}

/* --- Tablet / apertura menu mobile --- */
@media(max-width:960px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,1fr);}

  /* Menu mobile: pannello a discesa agganciato all'header.
     Due scelte volute:
     1. niente translateX fuori schermo — un elemento spostato a
        destra allarga comunque l'area di scroll e crea la barra
        orizzontale (era il bug principale su mobile);
     2. position:absolute e non fixed — .site-header ha
        backdrop-filter, che lo rende containing block per i
        discendenti fixed: un `inset` calcolato sul viewport
        veniva risolto sull'header e il pannello collassava. */
  .nav__links{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    max-height:calc(100vh - var(--header-h));
    max-height:calc(100dvh - var(--header-h));
    /* opaco, non traslucido: dentro un antenato con backdrop-filter
       il blur non si applica e il testo sottostante resterebbe leggibile
       attraverso il pannello */
    background:var(--black);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 48px rgba(0,0,0,.45);
    flex-direction:column;
    justify-content:flex-start;
    align-items:stretch;
    padding:26px var(--gutter) calc(40px + env(safe-area-inset-bottom));
    gap:0;
    overflow-y:auto;
    overscroll-behavior:contain;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .22s ease, transform .22s ease, visibility .22s;
  }
  .nav__links.open{opacity:1;visibility:visible;transform:none;}
  .nav__links a{
    font-size:15px;letter-spacing:.06em;padding:17px 0;
    border-bottom:1px solid var(--line);
  }
  .nav__links a::after{display:none;}
  .nav__links a.active{color:var(--red-glow);}
  .nav__toggle{display:inline-flex;}
  .nav__cta .btn--outline{display:none;}
  .hero__content{padding-block:clamp(64px,12vw,100px) clamp(56px,10vw,80px);}
  .hero__stats{gap:clamp(22px,5vw,48px);margin-top:clamp(40px,8vw,74px);}
}

/* --- Tablet verticale --- */
@media(max-width:860px){
  /* Le interruzioni di riga dei titoli sono composizione da desktop:
     su schermi stretti il testo deve andare a capo da solo.
     Nel markup ogni <br class="brk"> è preceduto da uno spazio,
     così nascondendolo le parole non si attaccano. */
  .brk{display:none;}
  .split{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  /* uno split “2fr 1fr” dichiarato inline deve comunque collassare */
  .split[style]{grid-template-columns:1fr !important;}
}

/* --- Mobile --- */
@media(max-width:640px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr;}
  .grid{gap:20px;}
  .form-row{grid-template-columns:1fr;}

  /* la tagline è ripetuta nell'hero e nel footer: su mobile
     lascia spazio allo switch di lingua */
  .topbar>.container>span{display:none;}
  .topbar .container{justify-content:flex-end;}

  .logo{font-size:17px;}
  /* la tagline non entra accanto a menu e switch lingua: meglio
     toglierla che troncarla — resta nell'hero e nel footer */
  .logo small{display:none;}
  .nav{padding-block:12px;}

  /* Specifiche discorsive: incolonnate sono illeggibili su mobile,
     etichetta sopra e valore sotto. Nelle product card i valori sono
     brevi (10 W, 24 LED…) e le due colonne restano più compatte. */
  .spec-table tr{display:block;padding:10px 0;border-bottom:1px solid #ececec;}
  .spec-table tr:last-child{border-bottom:0;}
  .spec-table td{display:block;border:0;padding:0;}
  .spec-table td:first-child{width:auto;margin-bottom:4px;}
  .spec-table td:last-child{text-align:left;}
  .section--black .spec-table tr,
  .section--charcoal .spec-table tr{border-color:var(--line);}
  /* dentro le product card i valori sono brevi: due colonne, più compatte */
  .product-card .spec-table tr{display:table-row;padding:0;border-bottom:0;}
  .product-card .spec-table td{display:table-cell;padding:7px 0;border-bottom:1px solid #ececec;}
  .product-card .spec-table td:first-child{width:46%;margin-bottom:0;padding-right:10px;}
  .product-card .spec-table td:last-child{text-align:right;}

  .hero{min-height:auto;}
  .hero__badge{
    font-size:10.5px;letter-spacing:.1em;padding:8px 14px;margin-bottom:22px;
    border-radius:20px;line-height:1.5;
  }
  .hero .lede{margin-top:18px;}
  .hero__actions{margin-top:30px;}
  /* i CTA principali a piena larghezza: più facili da colpire */
  .hero__actions .btn,.cta-band .btn,.page-hero .btn-row .btn{width:100%;}
  .btn-row{gap:12px;}
  .btn{padding:15px 22px;font-size:12px;letter-spacing:.1em;white-space:normal;}

  .hero__stats{gap:20px 28px;}
  .stat{flex:1 1 40%;min-width:130px;}
  .stat span{font-size:11px;}

  .marquee__track{gap:34px;}
  .marquee__track span{font-size:13px;}

  .benefit-card{padding:26px 22px;}
  .step{gap:14px;padding:22px 0;}
  .step__num{min-width:44px;}

  .footer-grid{gap:28px;}
  /* spazio sotto: il pulsante WhatsApp fisso non deve coprire
     la riga del copyright quando si arriva in fondo */
  .footer-bottom{justify-content:center;text-align:center;padding-bottom:84px;}

  .gallery__arrow{width:40px;height:40px;font-size:16px;}
  .gallery__arrow--prev{left:8px;}
  .gallery__arrow--next{right:8px;}
  .gallery__zoom-hint{font-size:10px;padding:6px 10px;bottom:10px;right:10px;}
  .gallery__thumbs img{width:64px;height:50px;}

  .lightbox__arrow{width:40px;height:40px;font-size:18px;}
  .lightbox__arrow--prev{left:8px;}
  .lightbox__arrow--next{right:8px;}
  .lightbox__close{width:40px;height:40px;top:12px;right:12px;}
  .lightbox__img{max-width:94vw;max-height:74vh;}

  .logos-strip{justify-content:flex-start;}
  .logos-strip span{font-size:13px;}
}

/* --- Small (iPhone SE e simili) --- */
@media(max-width:400px){
  .footer-grid{grid-template-columns:1fr;}
  .hero__stats{gap:16px 20px;}
  .stat{flex:1 1 100%;}
  .spec-table{font-size:12.5px;}
  .spec-table td:first-child{font-size:11px;letter-spacing:.02em;}
  .lang-switch a{padding:4px 6px;}
}

/* --- Landscape basso: l'hero non deve occupare tutto --- */
@media(max-height:520px) and (orientation:landscape){
  .hero{min-height:auto;}
  .hero__content{padding-block:56px 48px;}
}

/* ------------------------------------------------------
   17. ACCESSIBILITÀ & PREFERENZE UTENTE
   ------------------------------------------------------ */
:where(a,button,summary,input,select,textarea):focus-visible{
  outline:2px solid var(--red-glow);
  outline-offset:2px;
  border-radius:2px;
}
.site-header a:focus-visible,.topbar a:focus-visible{outline-color:var(--teal);}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .marquee__track{animation:none;transform:none;}
}

@media print{
  .site-header,.topbar,.marquee,.nav__toggle,.cta-band,.lightbox{display:none !important;}
  body{color:#000;background:#fff;}
  .section{padding:24px 0;}
}


/* ------------------------------------------------------
   18. PULSANTE WHATSAPP FISSO
   Iniettato da js/main.js su ogni pagina, con il messaggio
   precompilato in base alla pagina di partenza.
   ------------------------------------------------------ */
.wa-float{
  position:fixed;
  right:max(18px, env(safe-area-inset-right));
  bottom:max(18px, env(safe-area-inset-bottom));
  z-index:50;
  display:inline-flex;align-items:center;gap:10px;
  height:56px;padding:0 18px;
  background:#25d366;color:#0b0b0d;
  border-radius:28px;
  font-family:var(--ff-head);font-weight:700;font-size:13px;
  letter-spacing:.06em;text-transform:uppercase;
  box-shadow:0 6px 24px rgba(0,0,0,.28);
  transition:background-color .2s ease, transform .2s ease;
}
.wa-float:hover{background:#1eb457;transform:translateY(-2px);}
.wa-float svg{flex:none;}
/* mentre menu o lightbox sono aperti non deve galleggiare sopra */
body.is-locked .wa-float{display:none;}
@media(max-width:640px){
  /* su mobile solo l'icona: occupa meno e non copre i testi */
  .wa-float{width:54px;height:54px;padding:0;justify-content:center;border-radius:50%;}
  .wa-float__label{display:none;}
}
@media print{.wa-float{display:none;}}