/* ============================================================
   EMS Demo 2 — Carlo Gavazzi (layout PDF Luca)
   Palette: #121F3A blu scuro / #E20714 rosso / #D2D9E7 grigio chiaro
   Font: Hubot Sans (300/400/500/700)
   ============================================================ */

:root {
  --color-blue:   #121f3a;
  --color-red:    #e20714;
  --color-gray:   #d2d9e7;
  --color-white:  #ffffff;
  --color-black:  #000000;
  --font-sans: "Hubot Sans", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --header-h: 150px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-blue);
  color: var(--color-white);
  font-family: var(--font-sans);
  font-weight: 400;
  /* `overflow-x: clip` evita scroll orizzontale SENZA rompere position: sticky
     (hidden creerebbe un formatting context che spezza le sezioni sticky desktop) */
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.nowrap { white-space: nowrap; }

/* ---------- HEADER ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  padding: 0 40px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  background: var(--color-blue);
  color: var(--color-white);
  /* Nascosto finché il video hero non finisce: slide-down + fade */
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.6s ease, opacity 0.6s ease;
}
body.hero-revealed .site-header {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-self: center;
  cursor: pointer;
}
.brand img {
  height: 95px;
  width: auto;
}
.nav-side a { cursor: pointer; }

/* ---------- BURGER + MOBILE DRAWER ---------- */
.menu-toggle {
  display: none;       /* hidden by default; enabled via media query */
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 32px;
  padding: 6px 4px;
  flex-direction: column;
  justify-content: space-between;
  background: transparent;
  border: 0;
  cursor: pointer;
  z-index: 1100;
}
.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.2s ease;
  transform-origin: center;
}
body.menu-open .menu-toggle span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
body.menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
body.menu-open .menu-toggle span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-blue);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0s linear 0.3s;
}
body.menu-open .mobile-menu {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.3s ease, visibility 0s;
}
.mobile-menu-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  height: 100%;
  padding: 32px 24px;
}
.mobile-menu-nav a {
  color: var(--color-white);
  font-size: clamp(28px, 7vw, 40px);
  font-weight: 700;
  letter-spacing: -0.015em;
  text-decoration: none;
}
body.menu-open { overflow: hidden; }   /* blocca scroll body quando menu aperto */

.nav-side {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 20px;
  font-weight: 400;
}
.nav-left  { justify-content: flex-end; padding-right: 30px; }
.nav-right { justify-content: flex-start; padding-left: 30px; }

.nav-side a {
  color: var(--color-white);
  transition: opacity 0.2s ease;
}
.nav-side a:hover { opacity: 0.7; }

.nav-sep {
  color: rgba(255, 255, 255, 0.5);
}

/* ---------- BUTTONS ---------- */

.btn-buy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 40px;
  border-radius: 999px;
  background: var(--color-red);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  border: 1.5px solid var(--color-red);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn-buy:hover {
  background: transparent;
  color: var(--color-red);
}

.btn-outline {
  /* Default: sfondo pieno blu (come BUY NOW ma blu). Hover: outline */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 999px;
  background: var(--color-blue);
  color: var(--color-white);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  border: 1.5px solid var(--color-blue);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn-outline:hover {
  background: transparent;
  color: var(--color-blue);
}

/* ---------- HERO ---------- */

.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  background: var(--color-blue);
  /* Niente padding-top: il video occupa tutto lo schermo finché l'header
     resta nascosto. Quando l'header compare (fine video) si sovrappone
     in cima al video, che a quel punto è già in fade-to-blue. */
  padding-top: 0;
}

.hero-stage {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background: var(--color-blue);
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;          /* riempie tutta la larghezza, eventuale ritaglio top/bottom */
  background: var(--color-blue);
  pointer-events: none;
  z-index: 0;
  /* Maschera l'alone di compositing GPU (~1px) visibile su alcuni PC Windows */
  outline: none;
  box-shadow: 0 0 0 1px var(--color-blue);
}

.hero-scrim {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background:
    linear-gradient(180deg,
      rgba(18, 31, 58, 0.30) 0%,
      rgba(18, 31, 58, 0.05) 30%,
      rgba(18, 31, 58, 0)    55%,
      rgba(18, 31, 58, 0.55) 100%
    );
}

/* Bottone mute/unmute audio nella hero */
.hero-mute-toggle {
  position: absolute;
  right: clamp(16px, 2vw, 28px);
  bottom: clamp(16px, 2vw, 28px);
  z-index: 5;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1.5px solid rgba(255, 255, 255, 0.65);
  border-radius: 999px;
  background: rgba(18, 31, 58, 0.55);
  color: var(--color-white);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: background 0.2s ease, border-color 0.2s ease, opacity 0.4s ease, transform 0.2s ease;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.hero-mute-toggle.is-ready {
  opacity: 1;
  pointer-events: auto;
}
.hero-mute-toggle:hover {
  background: rgba(18, 31, 58, 0.85);
  border-color: var(--color-white);
  transform: scale(1.05);
}
.hero-mute-toggle:focus-visible {
  outline: 2px solid var(--color-white);
  outline-offset: 3px;
}
.hero-mute-icon { display: none; }
.hero-mute-toggle[aria-pressed="true"] .hero-mute-icon--off { display: block; }
.hero-mute-toggle[aria-pressed="false"] .hero-mute-icon--on { display: block; }

.hero-content {
  position: absolute;
  left: 50%;
  /* Centrato verticalmente nello spazio tra il fondo dell'header e la fine sezione */
  top: calc(50vh + var(--header-h) / 2);
  bottom: auto;
  transform: translate(-50%, -50%) translateY(20px);
  z-index: 2;
  width: min(900px, 92vw);
  text-align: center;
  color: var(--color-white);
  opacity: 0;
  pointer-events: none;
  transition: opacity 1.4s ease, transform 1.4s ease;   /* fade più morbido, in sovrapposizione col fade video */
  will-change: transform, opacity;
}

.hero-content.is-revealed {
  opacity: 1;
  transform: translate(-50%, -50%) translateY(0);
  pointer-events: auto;
}

.hero-product {
  display: block;
  width: auto;
  height: 40vh;
  margin: 0 auto clamp(14px, 2vh, 26px);
}

.hero-pre {
  margin: 0 0 5px;
  font-size: clamp(14px, 1.1vw, 18px);
  font-weight: 400;
  letter-spacing: 0.04em;
}

.hero-title {
  font-size: clamp(32px, 4.6vw, 64px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
}

.hero-sub {
  margin: 0 0 24px;
  font-size: 1.15vw;
  font-weight: 300;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.92);
}

/* ---------- FEATURES ---------- */

.features-scroll {
  position: relative;
  width: 100%;
  height: 400vh;
  background: var(--color-gray);
  color: var(--color-blue);
}

.features-sticky {
  position: sticky;
  top: var(--header-h);
  width: 100%;
  height: calc(100vh - var(--header-h));
  min-height: 560px;
  overflow: hidden;
  /* Split verticale a 50%: metà sx grigio chiaro, metà dx bianco
     (replica il layout del PDF di riferimento) */
  background: linear-gradient(
    to right,
    var(--color-gray) 0%,
    var(--color-gray) 50%,
    var(--color-white) 50%,
    var(--color-white) 100%
  );
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4%;
  /* Niente più padding-bottom dedicato ai CTA absolute: i bottoni sono
     ora dentro la colonna sx come elemento normale del layout. */
  padding: 0 30px 30px 30px;
  height: 100%;
  max-width: 1600px;
  margin: 0 auto;
  align-items: stretch;
}

/* --- Colonna sinistra --- */

.features-nav {
  position: relative;
  height: 100%;
  min-width: 0;          /* consente alla colonna grid di restringersi sotto il contenuto */
  display: flex;
  flex-direction: column;
  padding-top: 100px;
  padding-left: 0;
  /* Padding destro che distanzia i testi dallo split grigio/bianco */
  padding-right: 50px;
  padding-bottom: 50px;
  overflow: visible;
}

.features-list {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  /* Espande riempiendo lo spazio centrale del nav: le voci sono centrate
     verticalmente, i bottoni in basso (margin-top: auto). */
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  /* Gap minimo: le voci stanno vicine. Lo spazio per la descrizione
     viene aggiunto solo dentro la voce attiva (vedi .feat-detail). */
  gap: 8px;
}

.feat-item {
  position: relative;
  /* Voci inattive: bianche, sempre visibili nelle stesse dimensioni e peso */
  color: var(--color-white);
  font-size: clamp(42px, 4.2vw, 66px);
  /* Tutte le voci in BOLD, sia inattive che attiva (uniformi) */
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  padding-left: 0;
  text-align: right;
  cursor: pointer;
  transition: color 0.25s ease;
}
.feat-item .feat-name { display: inline-block; }
.feat-item .feat-name:hover { opacity: 0.8; }

.feat-item.is-active {
  /* Voce attiva: cambia solo il colore (peso uniforme con le altre) */
  color: var(--color-blue);
}

/* (pallino rimosso) */

.feat-detail {
  /*
    Collapse quando inattivo: max-height 0 + overflow hidden = niente
    spazio nel layout. Solo quando .is-active il detail si espande
    e "spinge" verso il basso le voci successive.
  */
  max-width: 520px;
  margin-left: auto;            /* allineato a destra come il titolo */
  max-height: 0;
  margin-top: 0;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
  transition:
    max-height 0.4s ease,
    margin-top 0.4s ease,
    opacity 0.4s ease 0.05s;
}
.feat-item.is-active .feat-detail {
  /* Altezza massima: ridotta per evitare overflow quando Secure è attivo */
  max-height: 240px;
  margin-top: 14px;
  opacity: 1;
}

.detail-title {
  margin: 0 0 12px;
  font-size: clamp(22px, 1.8vw, 28px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-blue);
}

.detail-body {
  margin: 0 0 0 auto;            /* allineato a destra */
  font-size: clamp(15px, 1.15vw, 17px);
  font-weight: 400;
  line-height: 1.55;
  /* crenatura aumentata = letter-spacing più ampio */
  letter-spacing: 0.04em;
  color: var(--color-blue);
  max-width: 520px;
}
.detail-body strong { font-weight: 700; }

/* --- Colonna destra: video --- */

.features-visual {
  height: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 37px;
  min-height: 0;
  min-width: 0;          /* consente alla colonna grid di restringersi sotto il contenuto */
}

.features-video-wrap {
  width: min(100%, 680px);
  height: auto;          /* altezza derivata dall'aspect-ratio: il box scala con la larghezza della colonna */
  max-width: 100%;
  max-height: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  /* Il video resta su fondo bianco come da PDF (riquadro bianco dentro
     la sezione grigia) */
  background: var(--color-white);
}

.features-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--color-white);
  display: block;
  pointer-events: none;
  /* Maschera l'alone di compositing GPU (~1px) visibile su alcuni PC Windows */
  outline: none;
  box-shadow: 0 0 0 1px var(--color-white);
}

/* --- CTA in basso, sotto la colonna sinistra --- */

.features-cta {
  /* Bottoni dentro la colonna sx, posizionati sopra il fondo */
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: auto;             /* spinge i bottoni verso il basso */
  margin-bottom: clamp(50px, 6vh, 110px);  /* alza i bottoni dal fondo */
  padding-top: clamp(30px, 4vh, 70px);     /* spazio sopra i bottoni dal testo */
  /* padding-bottom del nav (50px) preservato come gap minimo dal bottom sezione */
}

/* Bottone secondario dinamico: DATA-SHEET di default, OUR VPN sul tab Secure */
.features-cta .cta-vpn { display: none; }
.features-cta.is-secure .cta-datasheet { display: none; }
.features-cta.is-secure .cta-vpn { display: inline-flex; }

/* ---------- RESPONSIVE ---------- */

/* Tablet landscape e schermi medi */
@media (max-width: 1199px) {
  .features-grid { padding: 0 30px; gap: 3%; }
}

/* Tablet portrait e laptop piccoli — layout features 1-colonna, no sticky */
@media (max-width: 899px) {
  :root { --header-h: 70px; }
  .brand { transform: none; }
  .brand img { height: 44px; }
  .nav-side { font-size: 15px; gap: 10px; }
  .nav-left  { padding-right: 18px; }
  .nav-right { padding-left: 18px; }

  /* Mobile: header sempre visibile da subito (no reveal a fine video) */
  .site-header {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }

  /* Hero mobile: la sezione è alta SOLO quanto il video (16:9 full-width) +
     l'header. Niente 100vh, niente blocco blu extra. Il content (immagine+testo)
     appare in OVERLAY sopra il video, nella stessa area. */
  .hero { height: auto; padding-top: var(--header-h); }
  .hero-stage {
    height: auto;
    aspect-ratio: 16 / 9;       /* la sezione è alta come il video */
    overflow: hidden;
  }
  .hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    aspect-ratio: auto;
    object-fit: contain;        /* video full-width, non tagliato */
  }
  .hero-content {
    position: absolute;
    top: var(--header-h);       /* copre l'area del video (sotto l'header) */
    left: 0;
    right: 0;
    bottom: 0;
    width: auto;
    max-width: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: none;           /* sfondo = video/sezione, niente blocco blu */
    padding: clamp(8px, 2.5vw, 18px);
    transform: translateY(12px);
  }
  .hero-content.is-revealed { transform: translateY(0); }
  /* Immagine + testi compatti per stare nell'overlay del video 16:9 */
  .hero-product {
    height: auto;
    width: auto;
    max-width: 38%;
    max-height: 32%;
    margin: 0 auto clamp(4px, 1vw, 10px);
  }
  .hero-pre { font-size: clamp(9px, 2.4vw, 13px); margin: 0 0 2px; }
  .hero-title { font-size: clamp(18px, 5vw, 34px); margin: 0 0 4px; }
  .hero-sub { font-size: clamp(10px, 2.6vw, 13px); line-height: 1.3; margin: 0 0 8px; }

  /* Sezione 2: niente sticky, niente scroll-scrub, niente split colori */
  .features-scroll {
    height: auto;
    background: var(--color-white);
  }
  .features-sticky {
    position: relative;
    top: auto;
    height: auto;
    min-height: 0;
    overflow: visible;
    background: var(--color-white);   /* solo bianco, niente gradient verticale */
  }
  .features-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    padding: 60px 24px;
    gap: 28px;
    align-items: start;
  }
  /* Video PRIMA delle tab */
  .features-visual { order: -1; padding-top: 0; }
  .features-nav    { order: 0; padding: 0; height: auto; }

  .features-video-wrap {
    width: 100%;
    max-width: 520px;
    height: auto;
    aspect-ratio: 1 / 1;
    margin: 0 auto;
    background: var(--color-white);
  }
  /* Mostra l'intero video del dispositivo (niente ritaglio) */
  .features-video { object-fit: contain; }

  .features-list { gap: 14px; flex: 0 0 auto; }
  /* Voci visibili su sfondo bianco mobile: blu trasparente, attiva blu pieno */
  .feat-item {
    font-size: clamp(28px, 5vw, 40px);
    text-align: left;
    color: rgba(18, 31, 58, 0.35);
  }
  .feat-item.is-active { color: var(--color-blue); }
  .feat-detail { max-width: 100%; margin-left: 0; text-align: left; }
  .feat-item.is-active .feat-detail { max-height: 200px; }
  .detail-body, .detail-title { text-align: left; margin-left: 0; }

  .features-cta {
    margin: 24px 0 0;          /* override desktop margin-bottom + padding-top */
    padding-top: 0;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .details { padding: 64px 0; }
  .details-heading { font-size: clamp(34px, 6vw, 56px); margin-bottom: 36px; }
}

/* Smartphone */
@media (max-width: 599px) {
  :root { --header-h: 60px; }
  .site-header {
    padding: 0 16px;
    grid-template-columns: 1fr;       /* solo brand al centro, voci spostate nel drawer */
  }
  .brand img { height: 38px; }
  .brand { justify-self: center; }
  .nav-side { display: none; }        /* voci spostate nel drawer mobile */
  .menu-toggle { display: flex; }     /* burger visibile */

  .hero-content { padding: clamp(6px, 2.5vw, 14px); }
  .hero-title { font-size: clamp(16px, 5vw, 26px); }
  .hero-sub { font-size: clamp(9px, 2.6vw, 12px); }
  .hero-content .btn-buy {
    padding: 6px 14px;
    font-size: 10px;
    letter-spacing: 0.05em;
  }

  .features-grid { padding: 60px 16px 32px; gap: 22px; }
  .feat-item { font-size: clamp(26px, 7vw, 36px); }
  .feat-item.is-active .feat-detail { max-height: 220px; }
  .detail-title { font-size: clamp(18px, 4.5vw, 22px); }
  .detail-body { font-size: clamp(13px, 3.6vw, 15px); }

  .features-video-wrap { max-width: 100%; max-height: none; }

  /* CTA in linea (orizzontali), centrati, wrap se troppo larghi (evita overflow) */
  .features-cta {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 20px 0 0;
    padding: 0;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
  .features-cta .btn-outline,
  .features-cta .btn-buy {
    flex: 0 0 auto;
    width: auto;
    font-size: 11px;
    padding: 8px 14px;
    letter-spacing: 0.05em;
    white-space: nowrap;
  }

  .details { padding: 48px 0; }
  .details-heading { font-size: clamp(28px, 8vw, 38px); margin-bottom: 24px; }
  .detail-card { padding: 20px 18px; gap: 10px; }
  .card-title { font-size: 18px; }
  .card-body, .card-list { font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .feat-item { transition: none; }
}

/* Desktop short viewport: viewport non abbastanza alto per contenere
   header (150px) + voci feature + detail aperto + CTA senza overflow.
   Scala dinamicamente font, padding e detail in base alla viewport-height. */
@media (min-width: 900px) and (max-height: 900px) {
  .features-nav {
    padding-top: clamp(30px, 6vh, 80px);
    padding-bottom: clamp(18px, 4vh, 40px);
  }
  .features-list { gap: clamp(4px, 0.8vh, 10px); }
  .feat-item {
    font-size: clamp(34px, 5.8vh, 64px);
    line-height: 1.04;
  }
  .feat-item.is-active .feat-detail {
    max-height: clamp(140px, 24vh, 220px);
    margin-top: clamp(8px, 1.5vh, 16px);
  }
  .detail-title {
    font-size: clamp(17px, 2.4vh, 26px);
    margin: 0 0 clamp(6px, 1.2vh, 12px);
  }
  .detail-body {
    font-size: clamp(13px, 1.8vh, 16px);
    line-height: 1.45;
  }
  .features-cta {
    margin-bottom: clamp(20px, 4vh, 70px);
    padding-top: clamp(16px, 3vh, 45px);
  }
  .features-cta .btn-outline,
  .features-cta .btn-buy {
    padding: 10px 24px;
    font-size: 13px;
  }
}

/* ---------- WORDS SCROLL (sezione tra hero e features) ---------- */
/* Scroll-driven: video animazione-parole scrubba col mouse, durata breve */

.words-scroll {
  position: relative;
  width: 100%;
  height: 250vh;                  /* ~1.5 viewport di scroll per scrubare 7s di video */
  background: var(--color-white);
}

.words-sticky {
  position: sticky;
  top: var(--header-h);
  width: 100%;
  height: calc(100vh - var(--header-h));
  overflow: hidden;
  background: var(--color-white);
}

.words-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;            /* mostra video intero, niente ritaglio */
  background: var(--color-white);
  pointer-events: none;
  z-index: 0;
  /* Maschera l'alone di compositing GPU (~1px) visibile su alcuni PC Windows */
  outline: none;
  box-shadow: 0 0 0 1px var(--color-white);
}

@media (max-width: 899px) {
  /* Mobile/tablet: niente sticky/scrub, video autoplay loop */
  .words-scroll { height: auto; }
  .words-sticky {
    position: relative;
    top: auto;
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 9;
  }
}

/* ---------- FULL ANIMATION (sezione tra features e details) ---------- */
/* Scroll-driven: il video scrubba con lo scroll, testo+CTA appaiono a fine video */

.full-animation {
  position: relative;
  width: 100%;
  /* Layout impilato + scroll-scrub: fascia testo+CTA in cima (in flow),
     poi il video diventa sticky e scrubba con lo scroll. L'altezza extra
     è la "scroll zone" che il JS mappa sul currentTime del video. */
  height: 340vh;
  background: var(--color-white);
}

.full-animation-sticky {
  /* Tutto il blocco (testo+CTA in alto, video sotto) è pinnato a schermo
     mentre si scorre la scroll-zone → testo e bottoni restano visibili
     mentre il video scrubba. */
  position: sticky;
  top: var(--header-h);
  width: 100%;
  height: calc(100vh - var(--header-h));
  display: flex;
  flex-direction: column;
  background: var(--color-white);
}

.full-animation-overlay {
  /* Fascia superiore (dentro lo sticky): testo a sx + bottoni a dx su UNA riga
     → fascia più bassa, così resta più altezza per il video sotto */
  flex: 0 0 auto;
  width: 100%;
  max-width: 1500px;
  margin: 0 auto;
  box-sizing: border-box;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(14px, 2.5vw, 40px);
  /* padding compatto = più spazio al video, gap minimo verso il video sotto */
  padding: clamp(28px, 3.2vw, 52px) clamp(24px, 5vw, 80px) clamp(8px, 1vw, 14px);
  pointer-events: none;       /* solo i bottoni captano click */
}

.full-animation-video {
  /* Riempie lo spazio rimanente sotto il testo, dentro lo sticky */
  flex: 1 1 0;
  min-height: 0;
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;        /* mostra video intero */
  object-position: center;
  background: var(--color-white);
  pointer-events: none;
  /* Maschera l'alone di compositing GPU (~1px) visibile su alcuni PC Windows */
  outline: none;
  box-shadow: 0 0 0 1px var(--color-white);
}

.full-animation-text {
  max-width: none;
  width: max-content;           /* larghezza = contenuto (titolo/sub su una riga) */
  color: var(--color-blue);
}

.full-animation-heading {
  margin: 0 0 clamp(4px, 0.6vw, 8px);
  font-size: clamp(30px, 3.6vw, 52px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--color-blue);
  white-space: nowrap;          /* titolo su una riga */
}

.full-animation-body {
  margin: 0;
  font-size: clamp(14px, 1.2vw, 17px);
  font-weight: 400;
  line-height: 1.45;
  color: var(--color-blue);
  white-space: nowrap;          /* sottotitolo su una riga */
}
.full-animation-body strong { font-weight: 700; }

.full-animation-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  pointer-events: auto;       /* bottoni cliccabili */
}

@media (max-width: 899px) {
  /* Mobile/tablet: niente sticky/scrub — testo+CTA SOPRA, video SOTTO in flow.
     Il JS rileva il layout non-sticky → video in autoplay loop. */
  .full-animation {
    height: auto;
    padding: clamp(40px, 8vw, 72px) 0 clamp(24px, 5vw, 48px);
  }
  .full-animation-overlay {
    max-width: none;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 14px;
    padding: 0 20px 18px;
  }
  .full-animation-sticky {
    position: relative;
    top: auto;
    height: auto;
    display: block;
  }
  .full-animation-video {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    object-position: center;
  }
  .full-animation-text { max-width: 100%; width: auto; }
  /* Su mobile il testo può andare a capo (no overflow orizzontale) */
  .full-animation-heading,
  .full-animation-body { white-space: normal; }
}

@media (max-width: 599px) {
  .full-animation-sticky { min-height: 0; }
  .full-animation-overlay { padding: 0 16px 20px; }
  .full-animation-text { max-width: 100%; width: auto; }
  /* CTA in linea (orizzontali), centrati, wrap se troppo larghi */
  .full-animation-cta {
    align-self: stretch;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
  .full-animation-cta .btn-outline,
  .full-animation-cta .btn-buy {
    flex: 0 0 auto;
    width: auto;
    text-align: center;
    font-size: 11px;
    padding: 8px 14px;
    letter-spacing: 0.05em;
    white-space: nowrap;
  }
}

/* ---------- DETAILS (ultima sezione: card grid) ---------- */

.details {
  background: #f3f4f7;
  color: var(--color-blue);
  padding: clamp(60px, 8vw, 120px) 0;
}

.details-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 60px);
}

.details-heading {
  margin: 0 0 clamp(40px, 5vw, 72px);
  font-size: clamp(40px, 5.4vw, 78px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--color-blue);
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.detail-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px 30px;
  background: var(--color-white);
  border: 1px solid #d9dde6;
  border-radius: 6px;
}

.card-title {
  margin: 0 0 4px;
  font-size: clamp(18px, 1.45vw, 22px);
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--color-red);
}
.card-title .card-link { font-weight: 700; }

.card-body {
  margin: 0;
  font-size: clamp(14px, 1.05vw, 16px);
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-blue);
}
.card-body strong { font-weight: 700; }

.card-list {
  list-style: disc;
  margin: 4px 0 0;
  padding-left: 22px;
  font-size: clamp(14px, 1.05vw, 16px);
  line-height: 1.6;
}
.card-list li { margin: 2px 0; }

.detail-card .card-link {
  color: var(--color-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 700;
  transition: opacity 0.2s ease;
}
.detail-card .card-link:hover { opacity: 0.7; }

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 8px;
}

.maia-logo {
  /* PNG logo MaiaCloud — +20% rispetto al text-logo originale */
  height: clamp(22px, 1.92vw, 29px);
  width: auto;
  display: block;
}

@media (max-width: 1023px) {
  .details-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 599px) {
  .details-grid { grid-template-columns: 1fr; gap: 16px; }
  .detail-card { padding: 22px 22px; }
}

/* ---------- FOOTER ---------- */

.site-footer {
  background: var(--color-blue);
  color: var(--color-white);
  font-family: var(--font-sans);
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: clamp(14px, 1.8vw, 26px) clamp(20px, 4vw, 60px);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;   /* About Us | Logo (centro) | Contatti */
  gap: clamp(24px, 4vw, 60px);
  align-items: center;                    /* centra verticalmente le 3 colonne */
}

.footer-col-logo {
  display: flex;
  align-items: center;
  justify-content: center;               /* logo centrato orizzontalmente */
}
.footer-brand {
  display: inline-flex;
  cursor: pointer;
  transition: opacity 0.2s ease;
}
.footer-brand:hover { opacity: 0.85; }
.footer-logo {
  height: clamp(56px, 6.5vw, 88px);      /* logo header (Gavazzi-logo-rosso-scritta-bianca) */
  width: auto;
  display: block;
}

.footer-heading {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.005em;
  color: var(--color-white);
}

.footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-list a {
  color: var(--color-white);
  text-decoration: none;
  font-weight: 400;
  font-size: 16px;
  transition: opacity 0.2s ease;
}
.footer-list a:hover { opacity: 0.7; }

.footer-lang {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-white);
  text-decoration: none;
  font-size: 16px;
  font-weight: 400;
  transition: opacity 0.2s ease;
}
.footer-lang strong { font-weight: 700; }
.footer-lang:hover { opacity: 0.7; }
.footer-flag { font-size: 18px; line-height: 1; }

.footer-col-contacts {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;       /* contatti allineati a destra */
}

.footer-contact {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--color-white);
  text-decoration: none;
  font-weight: 700;
  font-size: 16px;
  transition: opacity 0.2s ease;
}
.footer-contact:hover { opacity: 0.7; }

.footer-icon {
  display: inline-flex;
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  color: var(--color-white);
}
.footer-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.footer-bar {
  background: var(--color-blue);
  color: var(--color-white);
  padding: 12px clamp(16px, 4vw, 40px);
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-bar p {
  margin: 0;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.5;
  opacity: 0.85;
}

@media (max-width: 899px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  .footer-col-logo {
    grid-column: 1 / -1;
    order: -1;                 /* logo in cima, About Us + Contatti sotto affiancati */
    justify-content: center;
  }
}

@media (max-width: 599px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 22px;
    text-align: center;
  }
  .footer-col-logo { justify-content: center; }
  .footer-list,
  .footer-col-contacts { align-items: center; }
  .footer-bar p { font-size: 12px; }
}

/* ---------- VALUE (How EMS delivers value: 3 colonne use-case) ---------- */

.value-section {
  background: var(--color-white);
  color: var(--color-blue);
  padding: clamp(48px, 6vw, 96px) clamp(20px, 4vw, 60px);
}

.value-card {
  max-width: 1180px;
  margin: 0 auto;
}

.value-heading {
  margin: 0 0 clamp(28px, 3.5vw, 52px);
  font-size: clamp(40px, 5.4vw, 78px);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--color-blue);
  text-align: center;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(28px, 3.5vw, 56px);
}

.value-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.value-icon {
  height: clamp(150px, 14vw, 200px);
  width: auto;
  margin-bottom: clamp(16px, 1.6vw, 24px);
  object-fit: contain;
}

.value-title {
  margin: 0 0 clamp(12px, 1.2vw, 18px);
  font-size: clamp(19px, 1.5vw, 23px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-blue);
}

.value-body {
  margin: 0 0 clamp(22px, 2.2vw, 32px);
  font-size: clamp(14px, 1.02vw, 16px);
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-blue);
  text-align: justify;
}

.value-cta {
  margin-top: auto;            /* allinea i bottoni in fondo anche con paragrafi di altezza diversa */
}

@media (max-width: 899px) {
  .value-grid { grid-template-columns: 1fr; gap: 36px; }
  .value-icon { height: clamp(140px, 30vw, 180px); }
  .value-body { text-align: left; }
}

/* ---------- LANGUAGE SWITCHER ---------- */

.lang-switcher {
  position: absolute;
  right: clamp(16px, 2vw, 40px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 1101;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 7px 13px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.lang-toggle:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.7); }
.lang-caret { transition: transform 0.25s ease; }
.lang-switcher.is-open .lang-caret { transform: rotate(180deg); }

.lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 168px;
  max-height: 70vh;
  overflow-y: auto;
  margin: 0;
  padding: 6px;
  list-style: none;
  background: var(--color-white);
  border-radius: 10px;
  box-shadow: 0 14px 40px rgba(18, 31, 58, 0.28);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0s linear 0.2s;
}
.lang-switcher.is-open .lang-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.lang-menu .lang-link {
  display: block;
  padding: 9px 14px;
  border-radius: 6px;
  color: var(--color-blue);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
}
.lang-menu .lang-link:hover { background: #eef1f7; }
.lang-menu .lang-link.is-active { color: var(--color-red); font-weight: 700; }

/* Selettore lingua nel drawer mobile */
.mobile-lang {
  list-style: none;
  margin: 30px auto 0;
  padding: 26px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 20px;
  width: 100%;
  max-width: 380px;
}
.mobile-lang .lang-link {
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.15s ease;
}
.mobile-lang .lang-link.is-active { color: var(--color-white); font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }

/* Desktop switcher nascosto su smartphone (le lingue vanno nel drawer) */
@media (max-width: 599px) {
  .lang-switcher { display: none; }
}
/* Su tablet/desktop il blocco lingue mobile resta nel drawer (non mostrato) */
@media (min-width: 600px) {
  .mobile-lang { display: none; }
}