/* ── HEADER HERO IMAGE ── */
.page-header { min-height: 85vh; }
@keyframes productHeroIn {
  from { opacity: 0; transform: translateX(80px) scale(0.95); }
  to   { opacity: 0.95; transform: translateX(0) scale(1); }
}
.page-header-hero-img {
  position: absolute; right: 5%; left: 45%; bottom: 0; top: var(--nav-h); margin: auto 0;
  width: auto; max-width: 100%; max-height: 70%; object-fit: contain;
  object-position: center center; z-index: 1; opacity: 0.95;
  pointer-events: none;
  filter: drop-shadow(0 8px 40px rgba(0,0,0,0.6));
  -webkit-mask-image:
    linear-gradient(to right, transparent 0%, black 25%),
    linear-gradient(to left, transparent 0%, black 25%),
    linear-gradient(to top, transparent 0%, black 25%),
    linear-gradient(to bottom, transparent 0%, black 25%);
  -webkit-mask-composite: source-in, source-in, source-in;
          mask-image:
    linear-gradient(to right, transparent 0%, black 25%),
    linear-gradient(to left, transparent 0%, black 25%),
    linear-gradient(to top, transparent 0%, black 25%),
    linear-gradient(to bottom, transparent 0%, black 25%);
          mask-composite: intersect, intersect, intersect;

  animation: productHeroIn 1.2s cubic-bezier(0.22, 1, 0.36, 1) 0.2s both;
}
@media (prefers-reduced-motion: reduce) {
  .page-header-hero-img { animation: none; opacity: 0.95; }
}

/* ── PRODUCT CATEGORIES ── */
.products-wrap { background: var(--dark); padding: 80px 60px; }

.product-category {
  margin-bottom: 100px; padding-bottom: 100px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.product-category:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.cat-header { margin-bottom: 50px; }
.cat-series {
  font-family: var(--font-cond); font-size: 13px; font-weight: 600;
  letter-spacing: 4px; color: var(--red); text-transform: uppercase;
  margin-bottom: 10px;
}
.cat-title {
  font-family: var(--font-display); font-size: clamp(32px,4vw,56px);
  color: var(--white); line-height: 1; letter-spacing: 1px;
}
.cat-subtitle {
  font-family: var(--font-cond); font-size: 14px; letter-spacing: 2px;
  text-transform: uppercase; margin-top: 8px;
}

.product-layout {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start;
}

/* Diagram carousel */
.diagram-carousel { position: relative; }
.diagram-main {
  width: 100%; aspect-ratio: 4/3; background: rgba(255,255,255,0.02); height: 30vh;
  border: 1px solid rgba(204,0,0,0.15); display: flex; align-items: center;
  justify-content: center; overflow: hidden; position: relative;
}
.diagram-main img {
  max-width: 40%; max-height: 40%; object-fit: contain;
  filter: drop-shadow(0 4px 20px rgba(0,0,0,0.5));
  transition: opacity 0.3s;
}
.diagram-thumbs {
  display: none;
}
.diagram-thumb {
  width: 52px; height: 42px; border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.02); overflow: hidden; cursor: none;
  transition: border-color 0.2s; flex-shrink: 0;
}
.diagram-thumb:hover, .diagram-thumb.active { border-color: var(--red); }
.diagram-thumb img { width: 100%; height: 100%; object-fit: cover; }

/* Size badge */
.size-badge {
  position: absolute; top: 12px; left: 12px;
  background: rgba(204,0,0,0.12); border: 1px solid rgba(204,0,0,0.3);
  padding: 8px 14px; z-index: 2;
  display: flex;
  align-items: end;
}
/* Seconda taglia: stesso badge, ancorato all'angolo opposto */
.size-badge-alt { left: auto; right: 12px; }
.size-badge-val { font-family: var(--font-display); font-size: 28px; color: var(--red); line-height: 1; }
.size-badge-label { font-family: var(--font-cond); font-size: 14px; letter-spacing: 2px; color: var(--light-gray); text-transform: uppercase; margin-left: 10%; margin-bottom: 3.5%; }

/* Parts table */
.parts-table { width: 100%; border-collapse: collapse; margin-top: 0; }
.parts-table th {
  font-family: var(--font-cond); font-size: 17px; font-weight: 600;
  letter-spacing: 3px; text-transform: uppercase; color: var(--red);
  padding: 12px 16px; text-align: left;
  border-bottom: 1px solid rgba(204,0,0,0.2);
  background: rgba(204,0,0,0.06);
}
.parts-table td {
  padding: 14px 16px; font-size: 16px; color: rgba(242,242,242,0.75);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: background 0.2s;
}
.parts-table tr:hover td { background: rgba(204,0,0,0.04); }
.parts-table .part-num { font-family: var(--font-display); font-size: 20px; color: var(--white); }
.parts-table .note { font-size: 13px; color: var(--light-gray); margin-top: 2px; letter-spacing: 0.5px; }

.product-desc {
  display: none;
}

/* ── ADVANTAGES ── */
#advantages { background: var(--black); padding: 100px 60px; }
.adv-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 2px; background: rgba(255,255,255,0.04); margin-top: 120px; }
.adv-card {
  background: var(--black); padding: 40px 30px;
  border-bottom: 3px solid transparent; transition: border-color 0.3s, background 0.3s; cursor: none;
}
.adv-card:hover { background: rgba(204,0,0,0.04); border-bottom-color: var(--red); }
.adv-num { font-family: var(--font-display); font-size: 56px; color: rgba(204,0,0,0.9); line-height: 1; margin-bottom: 16px; }
.adv-title { font-family: var(--font-cond); font-size: 20px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--white); margin-bottom: 12px; }
.adv-desc { font-size: 15.5px; font-weight: 300; color: var(--white); line-height: 1.75; }

.product-guides-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 60px; }

/* ── CUSTOM CTA ── */
#custom-cta {
  background: var(--dark); padding: 100px 60px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
}
.custom-cta-content .section-title { margin-bottom: 20px; }
.custom-cta-content p { font-size: 16.5px; font-weight: 300; color: var(--white); line-height: 1.85; margin-bottom: 32px; }
.custom-cta-visual {
  height: 320px; border: 1px solid rgba(204,0,0,0.15);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px;
  background: rgba(204,0,0,0.03); position: relative; overflow: hidden;
}
.custom-cta-visual::before {
  content: ''; position: absolute; inset: 0;
  background: repeating-linear-gradient(-55deg,transparent,transparent 24px,rgba(204,0,0,0.02) 24px,rgba(204,0,0,0.02) 25px);
}
.custom-email { font-family: var(--font-display); font-size: 22px; color: var(--red); letter-spacing: 2px; text-align: center; position: relative; z-index: 1; display: block; text-decoration: none; transition: color 0.3s; }
.custom-email:hover { color: var(--white); }
.custom-email-label { font-family: var(--font-cond); font-size: 11px; letter-spacing: 3px; color: var(--light-gray); text-transform: uppercase; position: relative; z-index: 1; }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .product-layout { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .page-header {
    min-height: 60vh; position: relative;
    /* nav height + hero image height so title clears the car */
    padding-top: calc(var(--nav-h) + 46vh + 20px);
  }
  .page-header-hero-img {
    left: 0; right: 0; margin: 0 auto;
    top: var(--nav-h); bottom: auto;
    width: 100%; max-width: 100%; max-height: 46vh;
    object-position: center center;
  }
  .page-header::after {
    content: '';
    position: absolute; left: 0; right: 0; bottom: 0; height: 65%;
    background: linear-gradient(to top, var(--black) 30%, transparent 100%);
    z-index: 1; pointer-events: none;
  }
  .products-wrap { padding: 50px 24px; }
  .product-category { margin-bottom: 60px; padding-bottom: 60px; }
  .diagram-main img { max-width: 65%; max-height: 65%; }
  #advantages { padding: 60px 24px; }
  .adv-grid { grid-template-columns: 1fr; }
  #custom-cta { grid-template-columns: 1fr; padding: 60px 24px; }
  .custom-cta-visual { height: 200px; }
}