:root{
  --fpc-red:#b10f1a;
  --fpc-navy:#102c54;
  --fpc-slate:#303a48;
  --fpc-muted:#6e7887;
  --fpc-bg:#f5f7fa;
  --fpc-card:#ffffff;
  --fpc-border:#dde2eb;
  --fpc-radius:18px;
  --fpc-shadow: 0 10px 30px rgba(16,44,84,.10);
  --fpc-shadow-soft: 0 8px 20px rgba(16,44,84,.08);
  --fpc-max: 1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background:var(--fpc-bg);
  color:var(--fpc-slate);
  line-height:1.5;
}
a{color:inherit}
.container{max-width:var(--fpc-max); margin:0 auto; padding:0 20px}
.header{
  position:sticky; top:0; z-index:50;
  background:#fff;
  border-bottom:1px solid var(--fpc-border);
}
.header__inner{display:flex; align-items:center; justify-content:space-between; gap:16px; padding:10px 0}
.brand{display:flex; align-items:center; gap:12px; text-decoration:none}
\.brand img{height:var(--fpc-logo-h,80px); width:auto; display:block}
.nav{display:flex; gap:22px; align-items:center}
.nav a{font-weight:600; text-decoration:none; font-size:14px; color:var(--fpc-slate); opacity:.92}
.nav a:hover{opacity:1}
.header__cta{
  display:flex; gap:10px; align-items:center;
}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 16px; border-radius:12px; border:1px solid transparent;
  font-weight:700; font-size:13px; letter-spacing:.2px;
  text-decoration:none;
  box-shadow: var(--fpc-shadow-soft);
}
.btn--primary{background:var(--fpc-red); color:#fff}
.btn--primary:hover{filter:brightness(.96)}
.btn--ghost{background:#fff; color:var(--fpc-slate); border-color:var(--fpc-border); box-shadow:none}
.btn--ghost:hover{background:#f9fafc}
.hero{
  position:relative;
  border-radius: var(--fpc-radius);
  overflow:hidden;
  background: linear-gradient(120deg, rgba(16,44,84,.85), rgba(16,44,84,.50));
  color:#fff;
  box-shadow: var(--fpc-shadow);
  margin:22px 0 18px;
}
.hero__bg{
  position:absolute; inset:0;
  background-size:cover; background-position:center;
  filter:saturate(1.05);
}
.hero__overlay{position:absolute; inset:0; background:linear-gradient(90deg, rgba(16,44,84,.90), rgba(16,44,84,.35))}
.hero__content{position:relative; padding:40px 34px; display:grid; grid-template-columns: 1.2fr .8fr; gap:22px; align-items:center}
.hero h1{margin:0 0 8px; font-size:46px; line-height:1.08}
.hero h1 .accent{color:#ffccd0}
.hero p{margin:0 0 14px; color:rgba(255,255,255,.88); font-size:16px; max-width:52ch}
.hero__actions{display:flex; flex-wrap:wrap; gap:12px}
.badge{
  display:inline-flex; align-items:center; gap:8px;
  padding:9px 12px; border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.18);
  font-weight:800; font-size:12px; letter-spacing:.3px
}
.section{margin:24px 0}
.section__title{font-size:28px; margin:0 0 14px; color:var(--fpc-navy)}
.grid4{display:grid; grid-template-columns: repeat(4, 1fr); gap:16px}
.card{
  background:var(--fpc-card);
  border:1px solid var(--fpc-border);
  border-radius: var(--fpc-radius);
  box-shadow: var(--fpc-shadow-soft);
}
.card__pad{padding:18px}
.tile{display:flex; flex-direction:column; gap:6px; min-height:140px}
.tile h3{margin:0; font-size:16px}
.tile p{margin:0; color:var(--fpc-muted); font-size:13px}
.tile .icon{
  width:44px; height:44px; border-radius:14px;
  display:grid; place-items:center;
  background:rgba(177,15,26,.08);
  border:1px solid rgba(177,15,26,.18);
  color:var(--fpc-red);
  font-weight:900;
}
.supply{
  display:grid; grid-template-columns: 1.1fr .9fr; gap:16px;
  align-items:stretch;
}
.supply ul{margin:0; padding-left:18px; column-count:2; column-gap:28px}
.supply li{margin:0 0 8px; break-inside:avoid}
.kicker{font-weight:800; letter-spacing:.2px; color:var(--fpc-navy)}
.ctaRow{display:flex; gap:12px; flex-wrap:wrap; margin-top:14px}
.split{
  display:grid; grid-template-columns: 1fr 1fr; gap:16px; align-items:start;
}
.prose h2{margin:0 0 10px; color:var(--fpc-navy)}
.prose p{margin:0 0 10px}
.prose ul{margin:0; padding-left:18px}
.prose li{margin:0 0 8px}
.banner{
  background: var(--fpc-navy);
  color:#fff;
  border-radius: var(--fpc-radius);
  padding:22px;
  display:flex; align-items:center; justify-content:space-between; gap:12px;
}
.banner p{margin:0; color:rgba(255,255,255,.86)}
.tabs{display:flex; gap:10px; flex-wrap:wrap; margin-bottom:14px}
.tabbtn{
  padding:10px 14px; border-radius:12px; border:1px solid var(--fpc-border);
  background:#fff; font-weight:800; cursor:pointer;
}
.tabbtn[aria-selected="true"]{border-color:rgba(177,15,26,.45); box-shadow: var(--fpc-shadow-soft)}
.viewer{
  aspect-ratio: 16/10;
  width:100%;
  border:1px solid var(--fpc-border);
  border-radius: 14px;
  overflow:hidden;
  background:#0b1220;
}
.viewer iframe{width:100%; height:100%; border:0}
.form-grid{display:grid; grid-template-columns:1fr 1fr; gap:12px}
.form-grid .full{grid-column:1/-1}
.input, textarea{
  width:100%; border:1px solid var(--fpc-border); border-radius:12px;
  padding:12px 12px; font-size:14px; outline:none;
}
textarea{min-height:130px; resize:vertical}
.notice{
  padding:12px 14px; border-radius:14px; border:1px solid var(--fpc-border);
  background:#fff;
}
.notice--ok{border-color:rgba(16,130,72,.28); background:rgba(16,130,72,.06)}
.notice--err{border-color:rgba(177,15,26,.28); background:rgba(177,15,26,.06)}
.footer{
  margin-top:26px;
  background: linear-gradient(180deg, rgba(16,44,84,.96), rgba(10,16,28,.98));
  color:#fff;
}
.footer__inner{padding:28px 0; display:flex; justify-content:space-between; gap:18px; align-items:flex-end; flex-wrap:wrap}
.footer small{color:rgba(255,255,255,.75)}
.footer__brand img{height:34px}
.footer__y4h{display:flex; justify-content:flex-end}
.footer__y4h img{height:58px; width:auto; opacity:.95}
@media (max-width: 980px){
  .nav{display:none}
  .hero__content{grid-template-columns:1fr; padding:34px 22px}
  .hero h1{font-size:38px}
  .grid4{grid-template-columns:1fr 1fr}
  .supply{grid-template-columns:1fr}
  .supply ul{column-count:1}
  .split{grid-template-columns:1fr}
}
@media (max-width: 520px){
  .grid4{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
}


/* Engineering support card media */
.engSupportMedia{margin-top:14px}
.engSupportImg{display:block; width:100%; height:160px; object-fit:cover; border-radius:14px; border:1px solid rgba(0,0,0,.06)}
.engSupportPlaceholder{height:160px; border-radius:14px; border:1px dashed rgba(0,0,0,.18); background:rgba(255,255,255,.6); display:flex; align-items:center; justify-content:center; color:var(--fpc-muted); font-weight:600}
@media(max-width:860px){
  .engSupportImg,.engSupportPlaceholder{height:150px}
}


/* ===== FPC Flipbook UI (Catalogue page) ===== */

/* Wrap + viewer sizing (keeps catalogue readable but not oversized) */
.flipbook-wrap{
  max-width: 1200px;
  margin: 0 auto;
}
#fpc-flipbook-viewer{
  width: 100%;
  height: 70vh;
  max-height: 780px;
  min-height: 520px;
  overflow: auto;
  border-radius: 16px;
  border: 1px solid rgba(10,30,60,.12);
  background: #fff;
  box-shadow: 0 10px 26px rgba(10,30,60,.10);
  -webkit-overflow-scrolling: touch;
}

/* Toolbar container (the div that contains Prev/Next/Page/Go) */
.flipbook-wrap > div[style*="margin-top"]{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  padding:12px;
  margin-top:14px !important;
  border:1px solid rgba(10,30,60,.12);
  background:#fff;
  border-radius:14px;
  box-shadow:0 6px 18px rgba(10,30,60,.06);
}

/* Buttons – match site vibe */
.flipbook-wrap button,
.fpc-zoombar button{
  appearance:none;
  border: 1px solid rgba(10,30,60,.18);
  background: #b90f1a; /* FPC red */
  color:#fff;
  padding:10px 14px;
  border-radius:12px;
  font-weight:800;
  line-height:1;
  cursor:pointer;
  transition: transform .05s ease, box-shadow .2s ease, filter .2s ease;
}
.flipbook-wrap button:hover,
.fpc-zoombar button:hover{
  filter: brightness(1.04);
  box-shadow:0 8px 20px rgba(10,30,60,.12);
}
.flipbook-wrap button:active,
.fpc-zoombar button:active{
  transform: translateY(1px);
}

/* Page number input */
#fpc-page-input{
  width:84px;
  height:40px;
  padding:8px 10px;
  border-radius:12px;
  border:1px solid rgba(10,30,60,.18);
  font-weight:700;
  background:#fff;
}

/* Zoom bar */
.fpc-zoombar{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  padding:12px;
  margin: 12px 0 14px;
  border:1px solid rgba(10,30,60,.12);
  background:#fff;
  border-radius:14px;
  box-shadow:0 6px 18px rgba(10,30,60,.06);
}
.fpc-zoombar .fpc-zoomlabel{
  font-weight:900;
  color:#0b214a;
  min-width:64px;
  text-align:center;
}


.footer__inner{align-items:center}
.footer__y4h{display:flex; align-items:center}
.footer-html{
  margin-top:6px;
  font-size:13px;
  line-height:1.55;
  opacity:.95;
}
.y4h-badge__img{
  display:block;
}


/* Mobile navigation */
.nav-toggle{
  display:none;
  appearance:none;
  border:1px solid var(--fpc-border);
  background:#fff;
  border-radius:12px;
  padding:10px;
  cursor:pointer;
  width:46px;
  height:46px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  box-shadow: var(--fpc-shadow-soft);
}
.nav-toggle span{
  display:block;
  width:22px;
  height:2px;
  background:var(--fpc-navy);
  border-radius:2px;
}
@media (max-width: 860px){
  .header__inner{
    flex-wrap:wrap;
    align-items:center;
  }
  .nav-toggle{
    display:inline-flex;
    margin-left:auto;
    order:2;
  }
  .header__cta{
    order:3;
    margin-left:0;
  }
  .nav{
    display:none;
    width:100%;
    order:4;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    background:#fff;
    border:1px solid var(--fpc-border);
    border-radius:14px;
    padding:8px 0;
    box-shadow: var(--fpc-shadow-soft);
    margin-top:10px;
  }
  .nav.is-open{
    display:flex;
  }
  .nav ul{
    width:100%;
    display:block !important;
    margin:0 !important;
    padding:0 !important;
  }
  .nav li{
    width:100%;
    list-style:none;
  }
  .nav a{
    display:block;
    width:100%;
    padding:12px 16px;
    font-size:15px;
  }
  .header__cta .btn{
    padding:10px 14px;
  }
}
@media (max-width: 640px){
  .header__inner{
    gap:10px;
  }
  .brand{
    max-width:58%;
  }
  .header__cta{
    width:100%;
    order:5;
  }
  .header__cta .btn{
    width:100%;
    justify-content:center;
  }
}

@media (max-width: 700px){ .brand img{height:min(var(--fpc-logo-h),72px)} }