/* ==========================================================================
   BlancOne CLICK+ — Istruzioni
   Landing page multilingua (IT / EN / FR / DE / PT-PT / ES)
   Valori tipografici, cromatici e di spaziatura ripresi 1:1 dalla sorgente.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------------- */
:root {
  /* Colori */
  --c-navy:        #152B7F;
  --c-blue:        #008CDC;
  --c-cyan:        #009FE3;
  --c-white:       #FFFFFF;
  --c-text:        #7A7A7A;
  --c-blue-tint:   rgba(0, 140, 220, 0.1);
  --c-blue-hover:  rgba(0, 140, 220, 0.6);

  /* Tipografia */
  --font-display:  "Barlow", Helvetica, Arial, sans-serif;
  --font-body:     "Jost", Helvetica, Arial, sans-serif;
  --font-base:     "Roboto", Helvetica, Arial, sans-serif;

  /* Larghezze */
  --container-max: 1140px;

  /* Ritmo verticale delle sezioni */
  --section-pad-x: 120px;
  --section-pad-y: 120px;
}

/* --------------------------------------------------------------------------
   2. Reset di base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  overflow-x: hidden;
  background-color: var(--c-white);
  color: var(--c-text);
  font-family: var(--font-base);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
}

h1, h2, h3, h4, p, figure, ol, ul {
  margin: 0;
  padding: 0;
}

img {
  max-width: 100%;
  height: auto;
  border: 0;
  vertical-align: middle;
}

a {
  color: var(--c-blue);
  text-decoration: none;
}

a:hover,
a:focus { color: var(--c-blue-hover); }

/* --------------------------------------------------------------------------
   3. Impalcatura: sezione a piena larghezza + contenitore centrato
   -------------------------------------------------------------------------- */
.section {
  display: flex;
  flex-direction: column;
  width: 100%;
  padding-inline: var(--section-pad-x);
}

.section__inner {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: min(100%, var(--container-max));
  margin-inline: auto;
  gap: 20px;
}

/* Larghezze di contenuto specifiche (attive da 768px in su, come in origine) */
@media (min-width: 768px) {
  .hero__inner,
  .intro__inner,
  .formulation__inner,
  .packaging__head,
  .packaging__list { max-width: 700px; }

  .packaging__inner,
  .site-footer__inner { max-width: 1200px; }

  .contact__inner { max-width: 800px; }
}

/* Blocchi annidati che non sono contenitori "boxed" */
.stack {
  display: flex;
  flex-direction: column;
  width: 100%;
  gap: 20px;
}

.spacer { width: 100%; }
.spacer--1  { height: 1px; }
.spacer--10 { height: 10px; }
.spacer--30 { height: 30px; }

/* --------------------------------------------------------------------------
   4. Tipografia condivisa
   -------------------------------------------------------------------------- */
.heading {
  font-family: var(--font-display);
  line-height: 1;
  margin: 0;
}

.heading--display {           /* 40 / 800 / uppercase */
  font-size: 40px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--c-navy);
}

.heading--xl {                /* 40 / 800 */
  font-size: 40px;
  font-weight: 800;
  color: var(--c-navy);
}

.heading--md {                /* 28 / 600 */
  font-size: 28px;
  font-weight: 600;
  color: var(--c-navy);
}

.rte {
  font-family: var(--font-body);
  font-size: 20px;
  font-weight: 400;
  line-height: 28px;
  color: var(--c-navy);
}

.rte p { margin: 0; }
.rte ol { margin: 0; padding-inline-start: 40px; list-style: decimal; }
.rte li { margin: 0; }

/* --------------------------------------------------------------------------
   5. Selettore di lingua
   -------------------------------------------------------------------------- */
.lang-bar {
  position: relative;
  z-index: 99;
  min-height: 80px;
  margin-bottom: -80px;
  padding-inline: 0;
}

.lang-bar__inner {
  align-items: center;
  justify-content: center;
  min-height: 80px;
}

.lang-switcher {
  padding: 7px;
  border: 1px solid transparent;
}

.lang-switcher__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.lang-switcher__item {
  display: inline-block;
  margin: 0;
}

.lang-switcher__link {
  display: block;
  padding: 5px 10px 6px;
  color: var(--c-text);
  line-height: 1;
}

.lang-switcher__link:hover,
.lang-switcher__link:focus-visible { opacity: 0.65; }

.lang-switcher__link img {
  display: inline;
  width: 18px;
  height: 12px;
  vertical-align: middle;
}

.lang-switcher__item.is-current .lang-switcher__link { opacity: 1; }

/* --------------------------------------------------------------------------
   6. Hero
   -------------------------------------------------------------------------- */
.hero {
  min-height: 240px;
  border-radius: 0 0 60px 60px;
  background-color: var(--c-navy);
  background-image: url("IMG/home-area-pro-blancone-scaled-1.webp");
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
}

.hero__inner {
  justify-content: flex-end;
  min-height: 240px;
  padding-block: 0 60px;
}

.hero__logo { text-align: center; }
.hero__logo img { width: 320px; }

/* --------------------------------------------------------------------------
   7. Introduzione: avvertenze + tutorial
   -------------------------------------------------------------------------- */
.intro__inner {
  gap: 40px;
  padding-block: 60px 120px;
}

/* Divisori --------------------------------------------------------------- */
.divider { display: flex; text-align: left; }

.divider__sep {
  display: flex;
  align-items: center;
  width: 100%;
}

.divider--line .divider__sep { border-block-start: 1px solid var(--c-blue); }

.divider--text .divider__sep::before,
.divider--text .divider__sep::after {
  content: "";
  display: block;
  flex-grow: 1;
  border-block-start: 1px solid var(--c-blue);
}

.divider__text {
  display: block;
  max-width: 95%;
  margin: 0 20px;
  font-family: var(--font-body);
  font-size: 20px;
  font-weight: 400;
  line-height: 20px;
  letter-spacing: 2px;
  color: var(--c-blue);
}

/* Elenco avvertenze ------------------------------------------------------ */
.steps {
  gap: 0;
  margin-top: -40px;
}

.image-box__wrapper {
  display: flex;
  align-items: center;
  text-align: start;
}

.image-box__img {
  display: block;
  width: 20%;
  margin: 0 20px 20px 0;
}

.image-box__img img {
  display: block;
  width: 100%;
  transition-duration: 0.3s;
}

.image-box__content { width: 100%; }

.image-box__desc {
  font-family: var(--font-body);
  font-size: 24px;
  font-weight: 400;
  line-height: 28px;
  color: var(--c-navy);
}

/* Video ------------------------------------------------------------------ */
.video__frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1.77777;
}

.video__frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* Locandina di ripiego. Compare solo quando la pagina viene aperta dal
   filesystem (origine "null"), dove il player YouTube non può inizializzarsi
   e restituisce l'errore 153. Servita via http/https non entra mai in gioco. */
.video__fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #000;
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
}

.video__fallback::before,
.video__fallback::after {
  content: "";
  position: absolute;
}

.video__fallback::before {
  width: 68px;
  height: 48px;
  border-radius: 14px;
  background-color: rgba(18, 18, 18, 0.75);
  transition: background-color 0.2s;
}

.video__fallback::after {
  width: 0;
  height: 0;
  margin-left: 5px;
  border-style: solid;
  border-width: 11px 0 11px 19px;
  border-color: transparent transparent transparent #fff;
}

.video__fallback:hover::before,
.video__fallback:focus-visible::before { background-color: #FF0000; }

/* --------------------------------------------------------------------------
   8. Formulazione
   -------------------------------------------------------------------------- */
.formulation {
  border-radius: 60px 60px 0 0;
  background-color: var(--c-blue-tint);
}

.formulation__inner {
  gap: 40px;
  padding-block: 120px 180px;
}

.formulation__head { gap: 0; }
.formulation__body { gap: 40px; }

.formulation__card {
  min-height: 400px;
  border-radius: 40px;
  background-color: var(--c-white);
  background-image: url("IMG/image001-2-copia.webp");
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 80% auto;
}

/* --------------------------------------------------------------------------
   9. Packaging
   -------------------------------------------------------------------------- */
.packaging {
  margin-top: -60px;
  border-radius: 60px 60px 0 0;
  background-color: var(--c-navy);
}

.packaging__inner {
  gap: 60px;
  padding-block: 120px;
}

.packaging__head {
  gap: 0;
  margin-inline: auto;
  text-align: center;
}

.packaging__head .heading { color: var(--c-white); }

.packaging__list {
  gap: 40px;
  margin-inline: auto;
}

.packaging__item { gap: 20px; }
.packaging__item--single { justify-content: space-between; }

.packaging__label {
  font-family: var(--font-body);
  font-size: 20px;
  font-weight: 400;
  line-height: 24px;
  text-align: center;
  color: var(--c-white);
}

.packaging__figure { text-align: center; }
.packaging__figure img { width: 100%; }

/* --------------------------------------------------------------------------
   10. Contatti
   -------------------------------------------------------------------------- */
.contact {
  background-color: transparent;
  background-image: linear-gradient(196deg, var(--c-blue) 0%, var(--c-navy) 100%);
}

.contact__inner {
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding-block: 120px;
}

.contact__logo { text-align: center; }
.contact__logo img { width: 320px; }

.contact__title,
.contact__mail {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 800;
  line-height: 1;
  text-transform: uppercase;
  text-align: center;
  color: var(--c-white);
}

.contact__mail { text-decoration: underline; }
.contact__mail a { color: inherit; text-decoration: none; }
.contact__mail a:hover,
.contact__mail a:focus { color: var(--c-cyan); }

/* --------------------------------------------------------------------------
   11. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  min-height: 80px;
  border-block-start: 1px solid var(--c-cyan);
  background-color: var(--c-navy);
}

.site-footer__inner {
  justify-content: flex-end;
  gap: 40px;
  padding-block: 120px;
}

.site-footer__body {
  display: flex;
  flex-direction: column;
  gap: 40px;
  background-color: var(--c-navy);
}

.site-footer__legal {
  align-self: center;
  width: 100%;
  /* Sorgente: margine inferiore del paragrafo (14.4px) sommato al margine
     negativo del suo contenitore (-12px). Risultante netto: 2.4px. */
  margin-bottom: 2.4px;
  font-family: var(--font-body);
  font-size: 20px;
  font-weight: 400;
  line-height: 24px;
  text-align: center;
  color: var(--c-white);
}

.site-footer__legal a { color: var(--c-blue); }
.site-footer__legal a:hover,
.site-footer__legal a:focus { color: var(--c-blue-hover); }

.site-footer__logo { text-align: center; }
.site-footer__logo img { width: 280px; }

/* --------------------------------------------------------------------------
   12. Tablet — fino a 1024px
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .section { padding-inline: 80px; }
  .lang-bar { padding-inline: 0; }

  .hero__inner { padding-block: 0 40px; }

  .intro__inner {
    gap: 30px;
    padding-block: 40px 80px;
  }

  .intro__title { font-size: 32px; }

  .steps { margin-top: -30px; }

  .formulation__inner { padding-block: 80px 140px; }
  .formulation__title { font-size: 32px; }
  .formulation__sub   { font-size: 24px; }
  .formulation__spec  { font-size: 20px; }

  .packaging__inner { padding-block: 80px; }
  .packaging__figure--multi { margin: 0 -40px 0 60px; }

  .contact__inner { padding-block: 80px; }
  .contact__title,
  .contact__mail { font-size: 32px; }

  .site-footer__inner { padding-block: 80px; }
}

/* --------------------------------------------------------------------------
   13. Mobile — fino a 767px
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
  .section__inner { max-width: min(100%, 767px); }

  .section { padding-inline: 20px; }
  .lang-bar { padding-inline: 0; }

  .hero {
    border-radius: 0 0 40px 40px;
    padding-inline: 60px;
  }
  .hero__inner { padding-block: 0 40px; }

  .intro__inner {
    gap: 20px;
    padding-block: 40px;
  }

  .intro__title {
    font-size: 24px;
    text-align: center;
  }

  .divider { text-align: center; }
  .divider--text .divider__text {
    margin: 0 10px;
    font-size: 16px;
    letter-spacing: 1px;
  }

  .steps { margin-top: -20px; }

  .image-box__wrapper {
    display: block;
    text-align: center;
    /* line-height azzerata + margine esplicito: riproduce in modo
       deterministico i 6px che la sorgente ottiene dal line box. */
    line-height: 0;
  }

  .image-box__img {
    display: inline-block;
    width: 33%;
    margin: 0 0 6px;
  }

  .image-box__desc {
    font-size: 20px;
    line-height: 24px;
  }

  .spacer--30 { height: 20px; }

  .intro__tutorial {
    font-size: 28px;
    text-align: center;
  }

  .formulation {
    border-radius: 20px 20px 0 0;
  }

  .formulation__inner {
    gap: 20px;
    padding-block: 40px 60px;
  }

  .formulation__title { font-size: 24px; }
  .formulation__sub {
    font-size: 20px;
    margin-bottom: 5px;
  }
  .formulation__spec { font-size: 20px; }

  .formulation__card { min-height: 200px; }

  .rte { font-size: 16px; line-height: 24px; }

  .packaging {
    margin-top: -20px;
    border-radius: 20px 20px 0 0;
  }

  .packaging__inner {
    gap: 40px;
    padding-block: 40px;
  }

  .packaging__title { font-size: 24px; }
  .packaging__sub,
  .packaging__lead { font-size: 20px; }

  .packaging__list { gap: 20px; }
  .packaging__label { font-size: 16px; line-height: 20px; }
  .packaging__figure--multi { margin: 0 -30px 0 30px; }

  .contact { padding-inline: 20px; }
  .contact__inner { padding-block: 80px; }
  .contact__logo img { width: 240px; }
  .contact__title { font-size: 28px; }
  .contact__mail  { font-size: 24px; }

  .site-footer { padding-inline: 0; }
  .site-footer__inner { padding-block: 0; }
  .site-footer__body { padding: 120px 60px; }
}