/* ============================================================
   /ilbox — landing prodotto E-BOX
   Stile ibrido: hero + break dark immersivi, sezioni su sfondo
   chiaro per configurazioni e casi d'uso. Mobile-first.
   ============================================================ */

.ilbox-body {
  background: #F7F6F2;
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- Header trasparente (sopra l'hero dark) ---------- */
.ilbox-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 30;
  background: transparent;
}
.ilbox-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.logo-img {
  height: 34px;
  width: auto;
  display: block;
}
.ilbox-nav-link {
  color: rgba(247, 246, 242, 0.9);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 10px 18px;
  border: 1px solid rgba(247, 246, 242, 0.4);
  border-radius: 999px;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.ilbox-nav-link:hover {
  color: #fff;
  border-color: rgba(247, 246, 242, 0.8);
  background: rgba(247, 246, 242, 0.1);
}

/* ---------- HERO (dark, full-bleed) ---------- */
.ilbox-hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: #06121E;
  overflow: hidden;
}
.ilbox-hero-bg {
  position: absolute;
  inset: -8% 0 0 0;        /* margine extra per il parallax */
  background: url("/ilbox/hero-box.webp") center 60% / cover no-repeat;
  will-change: transform;
}
.ilbox-hero-veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6, 18, 30, 0.55) 0%, rgba(6, 18, 30, 0.25) 35%, rgba(6, 18, 30, 0.85) 100%),
    radial-gradient(ellipse at 30% 40%, rgba(6, 18, 30, 0.15), rgba(6, 18, 30, 0.7) 90%);
}
.ilbox-hero-inner {
  position: relative;
  z-index: 2;
  color: #F7F6F2;
  padding-top: 120px;
  padding-bottom: 120px;
}
.ilbox-eyebrow {
  display: inline-block;
  margin: 0 0 22px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(247, 246, 242, 0.92);
  background: rgba(247, 246, 242, 0.08);
  border: 1px solid rgba(247, 246, 242, 0.2);
  border-radius: 999px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.ilbox-hero-title {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 400;
  font-size: clamp(44px, 9vw, 104px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 0 0 22px;
  color: #F7F6F2;
  text-shadow: 0 4px 60px rgba(0, 0, 0, 0.55);
}
.ilbox-hero-sub {
  font-size: clamp(16px, 2.2vw, 20px);
  line-height: 1.55;
  color: rgba(247, 246, 242, 0.92);
  margin: 0 0 32px;
  max-width: 540px;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.4);
}
.ilbox-hero-actions {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}
.ilbox-scroll-link {
  color: rgba(247, 246, 242, 0.85);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  border-bottom: 1px solid rgba(247, 246, 242, 0.35);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.ilbox-scroll-link:hover {
  color: #fff;
  border-color: rgba(247, 246, 242, 0.8);
}
.ilbox-hint {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  z-index: 2;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(247, 246, 242, 0.6);
  pointer-events: none;
  animation: ilboxHintBob 2.2s ease-in-out infinite;
}
@keyframes ilboxHintBob {
  0%, 100% { transform: translate(-50%, 0); opacity: 0.6; }
  50%      { transform: translate(-50%, 6px); opacity: 1; }
}

/* ---------- INTRO (transizione dark -> chiaro) ---------- */
.ilbox-intro {
  background: #06121E;
  padding: 90px 0 100px;
  text-align: center;
}
.ilbox-intro-line {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 300;
  font-size: clamp(22px, 3.4vw, 38px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: rgba(247, 246, 242, 0.7);
  margin: 0 auto;
  max-width: 820px;
}
.ilbox-intro-line strong {
  font-weight: 600;
  color: #F7F6F2;
}

/* ---------- Sezioni chiare ---------- */
.ilbox-section {
  background: #F7F6F2;
  padding: 88px 0;
}
.ilbox-section-eyebrow {
  font-family: "Fraunces", Georgia, serif;
  font-style: italic;
  font-weight: 400;
  font-size: 18px;
  color: var(--brand);
  margin: 0 0 14px;
}
.ilbox-section-title {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 400;
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0 0 18px;
}
.ilbox-section-sub {
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-muted);
  margin: 0 0 44px;
  max-width: 560px;
}

/* ---------- Il prodotto — scroll-scrub apertura valigetta ----------
   Default (no-JS / reduced-motion): flusso normale, mostra il fallback.
   .scrub-on (aggiunta da JS se il movimento è consentito): stage alto +
   sticky interna che fa il crossfade degli 8 keyframe con lo scroll. */
.ilbox-open-stage {
  background: #06121E;
  padding: 72px 0;
}
.ilbox-open-stage.scrub-on {
  height: 260vh;
  padding: 0;
}

/* sticky: nascosta finché JS non attiva lo scrub */
.ilbox-open-sticky { display: none; }
.scrub-on .ilbox-open-sticky {
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: sticky;
  top: 0;
  height: 100vh;
  min-height: 560px;
  overflow: hidden;
  --p: 0;
}
.ilbox-open-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: center;
}
/* il visual si stringe sulla valigetta (fit-content), così l'alone resta
   proporzionato al box */
.ilbox-open-visual {
  order: 2;
  position: relative;
  width: fit-content;
  margin: 0 auto;
}
.ilbox-open-text { order: 1; text-align: center; }

/* alone luminoso dietro la valigetta (scontornata, sfondo trasparente) */
.ilbox-open-glow {
  position: absolute;
  left: 50%;
  top: 54%;
  width: 122%;
  aspect-ratio: 1 / 1;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, rgba(232, 80, 26, 0.46) 0%, rgba(232, 80, 26, 0.18) 32%, transparent 66%),
    radial-gradient(circle at 50% 60%, rgba(150, 200, 255, 0.20) 0%, transparent 58%);
  filter: blur(18px);
  pointer-events: none;
  z-index: 0;
}

/* stack degli 8 keyframe (valigetta scontornata, PNG/WebP con alpha) */
.ilbox-open-frames {
  position: relative;
  z-index: 1;
  height: min(46vh, 400px);
  aspect-ratio: 1 / 1;
  filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.55));
}
.ilbox-open-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  will-change: opacity;
}
/* primo frame visibile di default (prima che JS prenda il controllo) */
.ilbox-open-frame:first-child { opacity: 1; }

.ilbox-open-title {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 400;
  font-size: clamp(28px, 5.4vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: #F7F6F2;
  margin: 6px 0 18px;
}

/* i 3 step sono impilati nello stesso punto: visibile solo quello attivo */
.ilbox-open-steps {
  position: relative;
  min-height: 132px;
  max-width: 420px;
  margin: 0 auto;
}
.ilbox-open-step {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.ilbox-open-sticky[data-phase="chiusa"]     .ilbox-open-step[data-phase="chiusa"],
.ilbox-open-sticky[data-phase="semiaperta"] .ilbox-open-step[data-phase="semiaperta"],
.ilbox-open-sticky[data-phase="operativa"]  .ilbox-open-step[data-phase="operativa"] {
  opacity: 1;
  transform: none;
}
.ilbox-open-step-num {
  display: inline-block;
  font-family: "Fraunces", Georgia, serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.ilbox-open-step h3 {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 8px;
  color: #F7F6F2;
}
.ilbox-open-step p {
  font-size: 15px;
  line-height: 1.55;
  color: rgba(247, 246, 242, 0.72);
  margin: 0;
}
.ilbox-open-hint {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(247, 246, 242, 0.55);
  pointer-events: none;
  animation: ilboxHintBob 2.2s ease-in-out infinite;
}

/* fallback statico (no-JS / reduced-motion) */
.scrub-on .ilbox-open-fallback { display: none; }
.ilbox-open-fallback .ilbox-section-eyebrow { color: #FFB89A; }
.ilbox-open-fallback .ilbox-section-title { color: #F7F6F2; margin-bottom: 36px; }
.ilbox-open-fallback-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
/* i keyframe sono sfumati sui bordi → niente card, si fondono nel fondo scuro */
.ilbox-open-fallback figure {
  margin: 0;
  text-align: center;
}
.ilbox-open-fallback figure img {
  width: 100%;
  height: auto;
  display: block;
}
.ilbox-open-fallback figcaption {
  padding: 4px 12px 0;
  font-size: 15px;
  line-height: 1.55;
  color: rgba(247, 246, 242, 0.72);
}
.ilbox-open-fallback figcaption strong { color: #F7F6F2; }

/* ---------- Break atmosferico (dark, full-bleed) ---------- */
.ilbox-break {
  position: relative;
  min-height: 78svh;
  display: flex;
  align-items: center;
  background: #06121E;
  overflow: hidden;
}
.ilbox-break-bg {
  position: absolute;
  inset: -10% 0 0 0;
  background: url("/ilbox/break-mare.webp") center 35% / cover no-repeat;
  will-change: transform;
}
.ilbox-break-veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 18, 30, 0.45) 0%, rgba(6, 18, 30, 0.35) 50%, rgba(6, 18, 30, 0.75) 100%);
}
.ilbox-break-inner {
  position: relative;
  z-index: 2;
}
.ilbox-break-line {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 400;
  font-size: clamp(30px, 6vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: #F7F6F2;
  margin: 0;
  max-width: 740px;
  text-shadow: 0 4px 50px rgba(0, 0, 0, 0.6);
}

/* ---------- Casi d'uso ---------- */
.ilbox-uses-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.ilbox-use-card {
  margin: 0;
  background: #fff;
  border: 1px solid rgba(14, 17, 22, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 14px 40px rgba(14, 17, 22, 0.06);
}
.ilbox-use-media {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: #0E1116;
}
.ilbox-use-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}
.ilbox-use-card:hover .ilbox-use-media img {
  transform: scale(1.04);
}
.ilbox-use-card figcaption {
  padding: 22px 24px 26px;
}
.ilbox-use-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--ink);
}
.ilbox-use-card p {
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-muted);
  margin: 0;
}

/* ---------- Waitlist ---------- */
.ilbox-cta-section {
  background: #06121E;
  padding: 96px 0 110px;
}
.ilbox-cta-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}
.ilbox-cta-copy .eyebrow {
  font-family: "Fraunces", Georgia, serif;
  font-style: italic;
  font-weight: 400;
  font-size: 18px;
  letter-spacing: 0.02em;
  text-transform: none;
  color: #FFB89A;
  margin: 0 0 18px;
}
.ilbox-cta-title {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 400;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: #F7F6F2;
  margin: 0 0 18px;
  max-width: 560px;
}
.ilbox-cta-sub {
  font-size: 17px;
  line-height: 1.6;
  color: rgba(247, 246, 242, 0.78);
  margin: 0;
  max-width: 520px;
}

/* ---------- Footer (dark) ---------- */
.ilbox-body .site-footer {
  background: #06121E;
  color: rgba(247, 246, 242, 0.7);
  border-top: 1px solid rgba(247, 246, 242, 0.08);
}
.ilbox-body .footer-brand {
  align-items: flex-start;
}
.ilbox-body .footer-tagline,
.ilbox-body .footer-legal {
  color: rgba(247, 246, 242, 0.6);
}
.ilbox-body .footer-brand .logo-img { height: 30px; }

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
/* stagger leggero tra le card di una stessa griglia */
.ilbox-use-card:nth-child(2) { transition-delay: 0.08s; }
.ilbox-use-card:nth-child(3) { transition-delay: 0.16s; }
.ilbox-use-card:nth-child(4) { transition-delay: 0.24s; }

/* ---------- Responsive ---------- */
@media (min-width: 700px) {
  .ilbox-uses-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 700px) {
  .ilbox-open-fallback-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 880px) {
  .ilbox-cta-grid {
    grid-template-columns: 1.05fr 1fr;
    gap: 72px;
  }
  /* scrub: visual a sinistra, testo a destra */
  .ilbox-open-inner {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 56px;
  }
  .ilbox-open-visual { order: 1; }
  .ilbox-open-text { order: 2; text-align: left; }
  .ilbox-open-steps { margin: 0; }
  .ilbox-open-visual { margin: 0; }
  .ilbox-open-frames { height: min(66vh, 500px); }
}
@media (min-width: 960px) {
  .ilbox-section { padding: 112px 0; }
}

@media (max-width: 640px) {
  .ilbox-header-inner { height: 72px; }
  .ilbox-header .logo-img { height: 40px; }
  .ilbox-nav-link {
    font-size: 13px;
    padding: 11px 18px;
    background: rgba(247, 246, 242, 0.14);
    border-color: rgba(247, 246, 242, 0.55);
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.04em;
  }
  .ilbox-hero-inner { padding-top: 110px; padding-bottom: 130px; }
  .ilbox-hero-actions { gap: 16px; }
  .ilbox-hero-actions .btn { width: 100%; text-align: center; }
  .ilbox-intro { padding: 64px 0 72px; }
  .ilbox-section { padding: 64px 0; }
  .ilbox-break { min-height: 70svh; }
  /* scroll-scrub: meno scroll su mobile */
  .ilbox-open-stage.scrub-on { height: 230vh; }
  .ilbox-open-stage { padding: 56px 0; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .ilbox-hint,
  .ilbox-open-hint { animation: none; }
  .ilbox-use-card:hover .ilbox-use-media img { transform: none; }
  .ilbox-hero-bg,
  .ilbox-break-bg { transform: none !important; }
  /* niente scrub: lo stage resta nel flusso e mostra il fallback statico
     (JS comunque non aggiunge .scrub-on quando il movimento è ridotto) */
  .ilbox-open-stage.scrub-on { height: auto; padding: 72px 0; }
  .ilbox-open-stage.scrub-on .ilbox-open-sticky { display: none; }
  .ilbox-open-stage.scrub-on .ilbox-open-fallback { display: block; }
}