/* ============================================================
   ACERO ALLOYS — main theme
   ------------------------------------------------------------
   Every colour resolves to a CSS variable. The variables are
   re-declared per page by includes/header.php from the Master
   Control Panel settings, so changing the brand colours in
   /admin/ restyles the whole site, the calculators and the
   generated PDFs without touching this file.
   ============================================================ */

:root{
  --primary:#2e3947;
  --secondary:#5d6c7c;
  --accent:#c8102e;
  --accent-2:#e5435c;
  --bg:#f4f5f7;
  --text:#212830;
  --header-bg:#ffffff;
  --footer-bg:#21262d;
  --border:#d9dee4;

  --surface:#ffffff;
  --surface-2:#eef0f3;
  --muted:#5a6472;
  --ok:#1d8a4b;
  --err:#c0392b;
  --radius:10px;
  --radius-lg:14px;
  --shadow:0 6px 24px rgba(24,32,44,.08);
  --shadow-lg:0 18px 44px rgba(24,32,44,.14);
  --ff-head:'Oswald','Arial Narrow',sans-serif;
  --ff-body:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:72px;
}

/* ------------------------------------------------ reset/base */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--ff-body);font-size:16px;line-height:1.65;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--ff-head);line-height:1.15;letter-spacing:.4px;color:var(--primary);margin:0 0 .55em}
h1{font-size:clamp(1.9rem,4vw,3rem);text-transform:uppercase}
h2{font-size:clamp(1.4rem,2.6vw,1.9rem);text-transform:uppercase;letter-spacing:.8px}
h3{font-size:1.12rem;letter-spacing:.5px}
p{margin:0 0 1em}
.container{width:min(1200px,92vw);margin-inline:auto}
.section{margin:0 0 46px}
.section > h2{border-left:4px solid var(--accent);padding-left:14px}
.eyebrow{
  display:inline-block;font-family:var(--ff-head);font-size:.78rem;font-weight:600;
  letter-spacing:2.6px;text-transform:uppercase;color:var(--accent);margin:0 0 10px;
}
.lead{font-size:1.08rem;color:var(--muted);max-width:70ch}
.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--accent);color:#fff;
  padding:10px 16px;z-index:2000;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0}
:target{scroll-margin-top:calc(var(--header-h) + 20px)}

/* ------------------------------------------------ buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--ff-head);font-size:.92rem;font-weight:600;letter-spacing:1.2px;
  text-transform:uppercase;border-radius:8px;padding:13px 24px;cursor:pointer;
  border:1.5px solid transparent;text-decoration:none;transition:all .2s var(--ease);
  line-height:1.1;
}
.btn:hover{transform:translateY(-2px);text-decoration:none}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-2);border-color:var(--accent-2)}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--primary)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-light{background:#fff;border-color:#fff;color:var(--accent)}
.btn-light:hover{filter:brightness(.96)}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}

/* ------------------------------------------------ topbar */
.site-header{position:sticky;top:0;z-index:1000;box-shadow:0 2px 14px rgba(24,32,44,.07)}
.topbar{background:var(--primary);color:#dfe4ea;font-size:.82rem}
.topbar__inner{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:36px;flex-wrap:wrap;padding:4px 0}
.topbar__contact{display:flex;gap:18px;flex-wrap:wrap}
.topbar__contact a{color:#dfe4ea;display:inline-flex;align-items:center;gap:6px}
.topbar__contact a:hover{color:#fff;text-decoration:none}
.topbar__contact svg{width:13px;height:13px}
.topbar__loc{color:#aab4c0;letter-spacing:.3px}
@media(max-width:720px){.topbar__loc{display:none}}

/* ------------------------------------------------ navbar */
.navbar{background:var(--header-bg)}
.navbar__inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:var(--header-h)}
.brand__logo{max-height:52px;width:auto}
.mainnav{display:flex;align-items:center;gap:2px}
.mainnav__list{display:flex;align-items:center;gap:0;list-style:none;margin:0;padding:0}
.mainnav__item{position:relative}
.mainnav__item > a,.mainnav__drop{
  display:inline-flex;align-items:center;gap:5px;padding:10px 11px;
  font-family:var(--ff-head);font-size:.84rem;font-weight:500;letter-spacing:.9px;
  text-transform:uppercase;color:var(--primary);background:none;border:0;cursor:pointer;
  border-bottom:2.5px solid transparent;white-space:nowrap;
}
.mainnav__item > a{font-family:var(--ff-head);text-decoration:none}
.mainnav__item > a:hover,.mainnav__drop:hover,.mainnav__item.is-active > a,.mainnav__item.is-active > .mainnav__drop{
  color:var(--accent);border-bottom-color:var(--accent);text-decoration:none
}
.mainnav__drop svg{width:12px;height:12px;transition:transform .2s var(--ease)}
.mainnav__item.is-open .mainnav__drop svg{transform:rotate(180deg)}
.navbar__cta{margin-left:12px;padding:11px 20px}

/* dropdown panels */
.drop{
  position:absolute;top:100%;left:0;min-width:250px;background:var(--surface);
  border:1px solid var(--border);border-top:3px solid var(--accent);border-radius:0 0 10px 10px;
  box-shadow:var(--shadow-lg);padding:12px 0;display:none;z-index:1100;
}
.mainnav__item.is-open .drop,.mainnav__item:hover .drop{display:block}
.drop__cols{display:grid;grid-template-columns:1fr 1fr;min-width:520px}
.drop__list{list-style:none;margin:0;padding:0 14px;min-width:250px}
.drop__list li + li{margin:0}
.drop__list a{
  display:block;padding:9px 10px;border-radius:7px;color:var(--primary);
  font-size:.9rem;text-decoration:none;
}
.drop__list a:hover,.drop__list a.is-here{background:var(--surface-2);color:var(--accent)}
.drop__all{font-weight:600;color:var(--accent)}
#dropTech .drop__list{min-width:270px}

/* nav toggle (mobile) */
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2.5px;background:var(--primary);margin:5px 0;transition:all .25s var(--ease)}
@media(max-width:1180px){
  .nav-toggle{display:block}
  .navbar__inner{flex-wrap:wrap}
  .mainnav{
    display:none;position:absolute;top:100%;left:0;right:0;background:var(--surface);
    border-bottom:1px solid var(--border);box-shadow:var(--shadow-lg);
    flex-direction:column;align-items:stretch;padding:10px 16px 18px;max-height:calc(100vh - var(--header-h));overflow:auto;
  }
  .mainnav.is-open{display:flex}
  .mainnav__list{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .mainnav__item > a,.mainnav__drop{justify-content:space-between;width:100%;padding:13px 6px;border-bottom:1px solid var(--border)}
  .mainnav__drop{justify-content:space-between}
  .drop{position:static;display:none;min-width:0;border:0;box-shadow:none;padding:0 0 8px;background:transparent}
  .mainnav__item.is-open .drop{display:block}
  .mainnav__item:hover .drop{display:none}
  .mainnav__item.is-open:hover .drop{display:block}
  .drop__cols{grid-template-columns:1fr;min-width:0}
  .drop__list{padding:0 12px}
  .navbar__cta{margin:14px 0 0}
  .nav-toggle.is-open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
  .nav-toggle.is-open span:nth-child(2){opacity:0}
  .nav-toggle.is-open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
}

/* ------------------------------------------------ page hero */
.page-hero{
  background:linear-gradient(120deg,var(--primary) 0%,#3c4a5c 55%,#46566b 100%);
  color:#fff;padding:52px 0 46px;position:relative;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.08;pointer-events:none;
  background:repeating-linear-gradient(115deg,transparent 0 34px,#fff 34px 35px);
}
.page-hero .container{position:relative;z-index:1}
.page-hero h1{color:#fff;margin-bottom:10px}
.page-hero .lead{color:#cfd7e0;margin-bottom:18px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
/* ghost buttons sit on the dark hero gradient — white text, white fill on hover */
.page-hero .btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.page-hero .btn-ghost:hover{background:#fff;border-color:#fff;color:var(--accent)}
.crumbs{font-size:.82rem;color:#aab4c0;margin-bottom:16px}
.crumbs a{color:#d7dee6}
.crumbs a:hover{color:#fff}
.crumbs .current{color:#9aa5b1}

/* ------------------------------------------------ layout + right sidebar */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 288px;gap:34px;padding:34px 0 10px;align-items:start}
.matnav{
  position:sticky;top:calc(var(--header-h) + 18px);
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  max-height:calc(100vh - var(--header-h) - 36px);overflow:auto;box-shadow:var(--shadow);
}
.matnav__head{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 16px;border-bottom:2px solid var(--accent);
}
.matnav__head h2{font-size:.95rem;letter-spacing:1.4px;margin:0;color:var(--primary)}
.matnav__close{display:none;background:none;border:0;cursor:pointer;color:var(--primary);padding:4px}
.matnav__body{padding:6px 0}
.matnav__list{list-style:none;margin:0;padding:0}
.matnav__link{
  display:block;padding:8px 16px;font-weight:600;font-size:.9rem;color:var(--primary);
  text-decoration:none;border-left:3px solid transparent;
}
.matnav__link:hover{background:var(--surface-2);color:var(--accent);text-decoration:none}
.matnav__item.is-here > .matnav__link{
  background:var(--surface-2);color:var(--accent);border-left-color:var(--accent);
}
.matnav__grades{border-left:3px solid transparent}
.matnav__item.is-here .matnav__grades{border-left-color:var(--accent)}
.matnav__grades summary{
  cursor:pointer;font-size:.74rem;letter-spacing:1px;text-transform:uppercase;
  color:var(--muted);padding:4px 16px;user-select:none;list-style:none;display:flex;gap:6px;align-items:center;
}
.matnav__grades summary::before{content:"▸";transition:transform .15s var(--ease);font-size:.8rem}
.matnav__grades[open] summary::before{transform:rotate(90deg)}
.matnav__grades summary::-webkit-details-marker{display:none}
.matnav__grades ul{list-style:none;margin:0;padding:2px 0 8px}
.matnav__grades li{font-size:.82rem;color:var(--muted);padding:3px 16px 3px 30px}
.matnav__uns{color:#9aa5b1;font-size:.72rem}
.matnav__foot{padding:14px 16px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:9px}

/* floating left-edge tabs (mobile only) */
.matnav-fab{display:none}
.side-tabs{display:none}
.qq-flyout{display:none}
@media(max-width:1100px){
  /* The two stacked vertical tabs (~40px wide) are pinned to the left edge,
     so every container keeps a 44px margin on both sides and no content
     ever sits underneath them. Percentages, not vw — vw counts the scrollbar. */
  .container{width:min(1200px,calc(100% - 88px))}
  .layout{grid-template-columns:minmax(0,1fr)}
  .matnav{
    position:fixed;inset:0 auto 0 0;width:min(88vw,340px);z-index:1500;
    max-height:none;border-radius:0;border-top:0;border-bottom:0;
    transform:translateX(-102%);transition:transform .28s var(--ease);
    box-shadow:var(--shadow-lg);
  }
  .matnav.is-open{transform:translateX(0)}
  .matnav__close{display:block}
  /* Quick Quote tab above Browse Materials — both thin vertical tabs on the
     left edge, below the site header (z-index 1000) so the open mobile menu
     always draws above them */
  .side-tabs{
    display:flex;flex-direction:column;align-items:flex-start;gap:10px;
    position:fixed;left:0;top:50%;transform:translateY(-50%);z-index:990;
  }
  .matnav-fab,.qq-fab{
    display:inline-flex;flex-direction:column;align-items:center;gap:14px;
    background:var(--primary);color:#fff;border:0;border-radius:0 12px 12px 0;
    padding:20px 10px;cursor:pointer;box-shadow:var(--shadow-lg);
  }
  .matnav-fab:hover,.qq-fab:hover{background:var(--accent)}
  .qq-fab{background:var(--accent)}
  .qq-fab:hover{background:var(--primary)}
  .matnav-fab span,.qq-fab span{
    writing-mode:vertical-rl;white-space:nowrap;
    font-family:var(--ff-head);font-size:.74rem;letter-spacing:2.2px;text-transform:uppercase;
  }
  .matnav-fab svg,.qq-fab svg{width:15px;height:15px}

  /* quick-quote flyout — same slide-in behaviour as the materials drawer */
  .qq-flyout{
    display:flex;flex-direction:column;
    position:fixed;inset:0 auto 0 0;width:min(88vw,340px);z-index:1500;
    background:var(--surface);border-right:1px solid var(--border);
    max-height:none;overflow:auto;
    transform:translateX(-102%);transition:transform .28s var(--ease);
    box-shadow:var(--shadow-lg);
  }
  .qq-flyout.is-open{transform:translateX(0)}
  .qq-flyout__head{
    display:flex;justify-content:space-between;align-items:center;
    padding:14px 16px;border-bottom:2px solid var(--accent);
    position:sticky;top:0;background:var(--surface);z-index:1;
  }
  .qq-flyout__head h2{font-size:.95rem;letter-spacing:1.4px;margin:0;color:var(--primary)}
  .qq-flyout__close{background:none;border:0;cursor:pointer;color:var(--primary);padding:4px}
  .qq-flyout__close svg{width:18px;height:18px;display:block}
  .qq-flyout__body{padding:16px}
  .qq-flyout__lead{margin:0 0 14px;font-size:.84rem;color:var(--muted);line-height:1.55}
  .qq-flyout__actions{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
  .qq-flyout__actions a{
    display:block;background:var(--surface-2);border:1px solid var(--border);
    border-radius:var(--radius);padding:9px 12px;text-decoration:none;
  }
  .qq-flyout__actions a:hover{border-color:var(--accent)}
  .qq-flyout__actions b{
    display:block;font-family:var(--ff-head);font-size:.72rem;letter-spacing:1px;
    text-transform:uppercase;color:var(--primary);
  }
  .qq-flyout__actions span{display:block;font-size:.8rem;color:var(--muted);margin-top:2px;word-break:break-all}
  .qq-flyout .form-grid{gap:11px}
}

/* ------------------------------------------------ spec strip / cards */
.spec-strip{
  display:flex;gap:14px;flex-wrap:wrap;margin:22px 0 4px;
}
.spec-strip > div{
  flex:1 1 150px;background:var(--surface);border:1px solid var(--border);
  border-top:3px solid var(--accent);border-radius:var(--radius);padding:14px 18px;
}
.spec-strip b{display:block;font-family:var(--ff-head);font-size:1.35rem;color:var(--primary)}
.spec-strip span{font-size:.8rem;color:var(--muted);letter-spacing:.4px}

.grade-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.grade-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px 18px 14px;box-shadow:var(--shadow);
}
.grade-card h3{margin-bottom:6px;color:var(--primary)}
.grade-card__eq{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.grade-card__eq span{
  font-size:.72rem;letter-spacing:.5px;background:var(--surface-2);color:var(--muted);
  border-radius:5px;padding:3px 8px;
}
.grade-card p{font-size:.9rem;color:var(--muted);margin:0}

/* ------------------------------------------------ certifications */
.cert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px}
.cert-card{
  display:flex;flex-direction:column;gap:8px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);
}
.cert-card__img{
  display:block;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
  background:var(--surface-2);line-height:0;
}
.cert-card__img img{display:block;width:100%;height:250px;object-fit:cover;object-position:top;transition:transform .25s var(--ease)}
.cert-card__img:hover img{transform:scale(1.02)}
.cert-card h3{margin:4px 0 0;color:var(--primary)}
.cert-card__sub{margin:0;font-size:.82rem;color:var(--muted)}
.cert-facts{margin:6px 0 0;display:grid;gap:5px}
.cert-facts div{display:flex;justify-content:space-between;align-items:baseline;gap:10px;font-size:.8rem;border-bottom:1px dashed var(--border);padding-bottom:4px}
.cert-facts dt{color:var(--muted);flex-shrink:0}
.cert-facts dd{margin:0;font-weight:600;color:var(--primary);text-align:right}
.cert-card__link{margin-top:auto;padding-top:8px;font-family:var(--ff-head);font-size:.78rem;letter-spacing:1.2px;text-transform:uppercase}

.iso-band{
  display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:22px 26px;box-shadow:var(--shadow);margin-top:16px;
}
.iso-badges{display:flex;gap:12px;flex-wrap:wrap;list-style:none;margin:0;padding:0}
.iso-badges li{
  display:flex;flex-direction:column;gap:2px;background:var(--surface-2);border:1px solid var(--border);
  border-left:3px solid var(--accent);border-radius:var(--radius);padding:10px 16px;
}
.iso-badges b{font-family:var(--ff-head);font-size:.95rem;letter-spacing:.6px;color:var(--primary)}
.iso-badges span{font-size:.78rem;color:var(--muted)}
.iso-band__cta{display:flex;gap:10px;flex-wrap:wrap}

.form-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.form-card{
  background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--accent);
  border-radius:var(--radius);padding:16px 18px;
}
.form-card h3{font-size:1rem;margin-bottom:6px}
.form-card p{font-size:.88rem;color:var(--muted);margin:0}

.check-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:8px 22px}
.check-list li{position:relative;padding-left:26px;color:var(--muted)}
.check-list li::before{
  content:"";position:absolute;left:0;top:.42em;width:14px;height:14px;border-radius:3px;
  background:var(--accent);
  clip-path:polygon(14% 44%,0 62%,40% 100%,100% 16%,84% 3%,38% 66%);
}

/* ------------------------------------------------ tables */
.tbl-h{margin:22px 0 8px}
.tbl-note{font-size:.85rem;color:var(--muted);margin-bottom:10px}
.tbl-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.data-table{width:100%;border-collapse:collapse;font-size:.9rem;min-width:520px}
.data-table caption{
  text-align:left;font-family:var(--ff-head);font-size:.86rem;letter-spacing:1.2px;
  text-transform:uppercase;color:var(--primary);padding:12px 16px;border-bottom:1px solid var(--border);
}
.data-table th{
  background:var(--surface-2);text-align:left;font-family:var(--ff-head);font-weight:500;
  font-size:.76rem;letter-spacing:1px;text-transform:uppercase;color:var(--secondary);
  padding:10px 16px;border-bottom:1px solid var(--border);
}
.data-table td{padding:10px 16px;border-bottom:1px solid var(--border);vertical-align:top}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table tbody tr:hover{background:#fafbfc}

/* ------------------------------------------------ related / calc cards */
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.related-card{
  display:flex;flex-direction:column;gap:5px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:15px 17px;text-decoration:none;
}
.related-card:hover{border-color:var(--accent);text-decoration:none;box-shadow:var(--shadow)}
.related-card b{font-family:var(--ff-head);font-size:.98rem;letter-spacing:.5px;color:var(--primary)}
.related-card span{font-size:.82rem;color:var(--muted)}

.calc-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.calc-cards--compact{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.calc-card{
  display:flex;flex-direction:column;gap:8px;background:var(--surface);
  border:1px solid var(--border);border-top:3px solid var(--primary);border-radius:var(--radius);
  padding:20px 20px 18px;text-decoration:none;box-shadow:var(--shadow);transition:all .2s var(--ease);
}
.calc-card:hover{transform:translateY(-3px);border-top-color:var(--accent);text-decoration:none;box-shadow:var(--shadow-lg)}
.calc-card b{font-family:var(--ff-head);font-size:1.05rem;letter-spacing:.6px;color:var(--primary)}
.calc-card span{font-size:.86rem;color:var(--muted)}
.calc-card .calc-go{margin-top:auto;font-family:var(--ff-head);font-size:.78rem;letter-spacing:1.4px;text-transform:uppercase;color:var(--accent)}

/* ------------------------------------------------ FAQ */
.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;
}
.faq-item summary{
  cursor:pointer;list-style:none;padding:15px 46px 15px 18px;position:relative;
  font-weight:600;font-size:.95rem;color:var(--primary);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-family:var(--ff-head);font-size:1.25rem;color:var(--accent);transition:transform .2s var(--ease);
}
.faq-item[open] summary::after{content:"–"}
.faq-body{padding:0 18px 16px}
.faq-body p{margin:0;font-size:.92rem;color:var(--muted)}

/* ------------------------------------------------ CTA band */
.cta-band{
  background:linear-gradient(120deg,var(--accent) 0%,var(--accent-2) 100%);
  border-radius:var(--radius-lg);color:#fff;padding:34px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;margin-bottom:6px;border:0;padding:0}
.cta-band p{margin:0;color:#ffe3e9;max-width:60ch}
.cta-band .btn{flex-shrink:0}

/* ------------------------------------------------ footer */
.site-footer{background:var(--footer-bg);color:#b8c0ca;margin-top:60px}
.footer-grid{
  display:grid;grid-template-columns:1.4fr .8fr 1fr .9fr 1.1fr;gap:34px;padding:52px 0 40px;
}
.footer-logo{max-height:46px;width:auto;filter:brightness(0) invert(1) opacity(.92);margin-bottom:14px}
.footer-col p{font-size:.88rem;line-height:1.7}
.footer-col h3{
  color:#fff;font-size:.85rem;letter-spacing:1.6px;text-transform:uppercase;margin-bottom:14px;
}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col ul li{margin-bottom:8px}
.footer-col ul a{color:#b8c0ca;font-size:.88rem}
.footer-col ul a:hover{color:#fff;text-decoration:none}
.footer-social{display:flex;gap:14px;margin-top:16px;flex-wrap:wrap}
.footer-social a{
  font-size:.78rem;letter-spacing:.8px;text-transform:uppercase;color:#fff;
  border:1px solid #454c57;border-radius:6px;padding:6px 12px;
}
.footer-social a:hover{border-color:var(--accent);text-decoration:none}
.footer-addr{font-size:.84rem;line-height:1.6;margin-bottom:14px}
.footer-addr b{color:#e4e8ec;display:block;font-size:.74rem;letter-spacing:1.2px;text-transform:uppercase;margin-bottom:4px}
.footer-contact{font-size:.88rem}
.footer-contact a{color:#fff}
/* extra bottom padding reserves the corner occupied by the fixed scroll-to-top button */
.footer-bottom{border-top:1px solid #333941;padding:16px 0 80px}
.footer-bottom__inner{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.8rem}
.footer-bottom nav{display:flex;gap:18px}
.footer-bottom a{color:#9aa5b1}
.footer-bottom a:hover{color:#fff}
@media(max-width:1000px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}}

/* ------------------------------------------------ forms */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid .full{grid-column:1/-1}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:.8rem;font-weight:600;letter-spacing:.6px;text-transform:uppercase;color:var(--secondary)}
.field input,.field select,.field textarea{
  width:100%;background:var(--surface);color:var(--text);
  border:1.5px solid var(--border);border-radius:8px;padding:11px 13px;
  font-family:inherit;font-size:.95rem;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{resize:vertical;min-height:96px}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(200,16,46,.12);
}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--err)}
.error-msg{font-size:.8rem;color:var(--err);min-height:1em}
.req{color:var(--accent)}
.form-note{font-size:.8rem;color:var(--muted);margin:8px 0 0}
.form-alert{
  margin-top:12px;padding:12px 15px;border-radius:8px;font-size:.9rem;display:none;
}
.form-alert.show{display:block}
.form-alert.success{background:#e4f5eb;color:var(--ok);border:1px solid #bfe5cf}
.form-alert.error{background:#fdeceb;color:var(--err);border:1px solid #f3c4c0}
.hp{position:absolute;left:-9999px;top:-9999px;height:0;overflow:hidden}

.captcha-box{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  background:var(--surface-2);border:1.5px solid var(--border);border-radius:8px;padding:9px 12px;
}
.captcha-challenge{
  font-family:var(--ff-head);font-size:1.15rem;font-weight:600;letter-spacing:2px;
  color:var(--primary);white-space:nowrap;
}
.captcha-box input{
  flex:1;min-width:90px;background:var(--surface);border:1px solid var(--border);
  border-radius:7px;padding:9px 11px;font-size:1rem;width:auto;
}
.captcha-refresh{
  background:none;border:1px solid var(--border);border-radius:7px;color:var(--secondary);
  cursor:pointer;padding:8px;display:grid;place-items:center;
}
.captcha-refresh:hover{color:var(--accent);border-color:var(--accent)}
.captcha-refresh svg{width:15px;height:15px}

/* ------------------------------------------------ enquiry modal + FAB */
.enq-fab{
  position:fixed;right:22px;bottom:22px;z-index:1300;
  display:inline-flex;align-items:center;gap:9px;
  background:var(--accent);color:#fff;border:0;border-radius:999px;
  padding:14px 22px;cursor:pointer;box-shadow:var(--shadow-lg);
  font-family:var(--ff-head);font-size:.9rem;font-weight:600;letter-spacing:1.4px;text-transform:uppercase;
  transition:all .2s var(--ease);
}
.enq-fab:hover{background:var(--accent-2);transform:translateY(-2px)}
.enq-fab svg{width:17px;height:17px}
.enq-fab.is-hidden{opacity:0;visibility:hidden;pointer-events:none;transform:none}

/* scroll-to-top — left edge; appears once the reader is a screenful down */
.to-top{
  position:fixed;left:22px;bottom:22px;z-index:1200;
  width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--primary);color:#fff;border:0;cursor:pointer;
  box-shadow:var(--shadow-lg);
  opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease),background .2s var(--ease);
}
.to-top:hover{background:var(--accent)}
.to-top.is-visible{opacity:1;visibility:visible}
.to-top svg{width:18px;height:18px}

.enq-modal{position:fixed;inset:0;z-index:1600;display:grid;place-items:center;padding:20px}
.enq-modal[hidden]{display:none}
.enq-modal__backdrop{position:absolute;inset:0;background:rgba(18,24,32,.62);backdrop-filter:blur(2px)}
.enq-modal__panel{
  position:relative;background:var(--bg);border-radius:var(--radius-lg);
  width:min(720px,100%);max-height:calc(100vh - 40px);overflow:auto;
  padding:30px 32px 26px;box-shadow:var(--shadow-lg);
}
.enq-modal__close{
  position:absolute;top:14px;right:14px;background:var(--surface);border:1px solid var(--border);
  border-radius:8px;cursor:pointer;padding:8px;color:var(--primary);
}
.enq-modal__close:hover{color:var(--accent);border-color:var(--accent)}
.enq-modal__close svg{width:16px;height:16px;display:block}
.enq-modal__panel h2{margin-bottom:6px}
.enq-modal__lead{font-size:.92rem;color:var(--muted);margin-bottom:18px}
@media(max-width:640px){
  .enq-modal__panel{padding:22px 18px}
  .form-grid{grid-template-columns:1fr}
}

/* ------------------------------------------------ home hero */
.home-hero{
  position:relative;color:#fff;overflow:hidden;
  background:linear-gradient(125deg,#232c38 0%,var(--primary) 45%,#3b4a5e 100%);
  padding:88px 0 72px;
}
.home-hero__grid{
  position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse 90% 100% at 30% 40%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 90% 100% at 30% 40%,#000 30%,transparent 75%);
}
.home-hero::after{
  content:"";position:absolute;right:-140px;top:-140px;width:520px;height:520px;border-radius:50%;
  border:54px solid rgba(200,16,46,.16);pointer-events:none;
}
.home-hero__inner{position:relative;z-index:1}
.home-hero h1{color:#fff;margin-bottom:14px}
.home-hero .accent{color:var(--accent-2)}
.home-hero .lead{color:#c6cfda;max-width:62ch}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:30px}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline:hover{border-color:#fff;background:#fff;color:var(--accent)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12)}
.hero-facts{
  display:flex;gap:0;margin:0;flex-wrap:wrap;
  border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);overflow:hidden;
  background:rgba(255,255,255,.04);backdrop-filter:blur(3px);
}
.hero-facts > div{
  flex:1 1 140px;padding:16px 22px;text-align:center;
}
.hero-facts > div + div{border-left:1px solid rgba(255,255,255,.14)}
.hero-facts dt{
  font-family:var(--ff-head);font-size:1.8rem;font-weight:600;color:var(--accent-2);line-height:1;
  margin-bottom:5px;
}
.hero-facts dd{margin:0;font-size:.76rem;letter-spacing:1.4px;text-transform:uppercase;color:#aeb8c4}

/* ------------------------------------------------ material cards (home) */
.mat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(252px,1fr));gap:16px}
.mat-card{
  display:flex;flex-direction:column;gap:6px;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius);padding:18px 19px 15px;
  text-decoration:none;box-shadow:var(--shadow);transition:all .2s var(--ease);
}
.mat-card:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--shadow-lg);text-decoration:none}
.mat-card b{font-family:var(--ff-head);font-size:1.06rem;letter-spacing:.5px;color:var(--primary)}
.mat-card span{font-size:.84rem;color:var(--muted)}
.mat-card em{
  font-style:normal;font-family:var(--ff-head);font-size:.74rem;letter-spacing:1.4px;
  text-transform:uppercase;color:var(--accent);margin-top:6px;
}

/* ------------------------------------------------ generic helpers */
.page-banner-note{font-size:.85rem;color:var(--muted)}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:26px}
@media(max-width:820px){.two-col{grid-template-columns:1fr}}
.info-box{
  background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--accent);
  border-radius:var(--radius);padding:18px 20px;font-size:.92rem;color:var(--muted);
}
.info-box b{color:var(--primary)}
.muted{color:var(--muted)}
.center{text-align:center}

/* ------------------------------------------------ company page components */
/* numbered process steps (about, manufacturing, technical-info) */
ol.steps{list-style:none;margin:0;padding:0;counter-reset:steps}
ol.steps>li{
  position:relative;padding:0 0 22px 56px;counter-increment:steps;
}
ol.steps>li::before{
  content:counter(steps);position:absolute;left:0;top:-2px;
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--accent);color:#fff;
  font-family:var(--ff-head);font-size:1.05rem;
}
ol.steps>li:not(:last-child)::after{
  content:"";position:absolute;left:19px;top:42px;bottom:4px;width:2px;
  background:var(--border);
}
ol.steps>li b{display:block;font-size:1.02rem;color:var(--primary);margin-bottom:4px}
ol.steps>li p{margin:0 0 6px;font-size:.92rem;color:var(--muted)}

/* quick-facts pairs inside an info-box (about) */
dl.facts{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 18px;margin:12px 0 0}
dl.facts dt{font-family:var(--ff-head);font-size:1.7rem;color:var(--accent);line-height:1}
dl.facts dd{margin:2px 0 0;font-size:.78rem;letter-spacing:.4px;text-transform:uppercase;color:var(--muted)}

/* compact bullet list (industries cards, checklists inside boxes) */
.mini-list{margin:8px 0 0;padding-left:18px;list-style:none}
.mini-list li{position:relative;padding-left:0;font-size:.86rem;color:var(--muted);margin-bottom:5px}
.mini-list li::before{content:"—";position:absolute;left:-18px;color:var(--accent)}
a.mini-list, .mini-list a{color:inherit}

/* stacked contact details */
.contact-line{margin:10px 0 0;font-size:.9rem}
.contact-line span{display:block;margin-bottom:4px}
.contact-line a{color:var(--primary);text-decoration:none;border-bottom:1px solid var(--border)}
.contact-line a:hover{color:var(--accent);border-color:var(--accent)}
address{font-style:normal;line-height:1.7}

/* small lead above forms */
.form-lead{font-size:.88rem;color:var(--muted);margin:-6px 0 18px}
.form-lead .req{color:var(--accent)}

/* small muted note under tables / callouts (used site-wide) */
.table-note{font-size:.8rem;color:var(--muted);margin:10px 2px 0;line-height:1.55}

/* sitemap column list */
.sitemap-list{columns:2;column-gap:34px;margin-top:10px}
.sitemap-list li{break-inside:avoid;margin-bottom:6px;font-size:.92rem}
.sitemap-list a{color:var(--primary);text-decoration:none;border-bottom:1px solid var(--border)}
.sitemap-list a:hover{color:var(--accent);border-color:var(--accent)}
@media(max-width:700px){.sitemap-list{columns:1}}

/* inline link inside CTA band text */
.cta-band .cta-link{color:#fff;text-decoration:underline}

/* contact page split */
.contact-wrap{align-items:start}

/* ------------------------------------------------ calculators (shared UI) */
.calc-wrap{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);
}
.calc-form{margin:0}
.calc-form .field{margin-bottom:14px}
.calc-inputs{display:grid;grid-template-columns:1fr 1fr;gap:14px 18px}
.calc-inputs .field{margin-bottom:0}
.calc-units{grid-column:1/-1;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.calc-units__label{font-size:.75rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-right:2px}
.calc-unit-btn{
  font:inherit;font-size:.82rem;line-height:1;padding:6px 14px;
  border:1px solid var(--border);border-radius:999px;
  background:var(--surface);color:var(--secondary);cursor:pointer;
}
.calc-unit-btn:hover{border-color:var(--accent);color:var(--accent)}
.calc-unit-btn.is-on{background:var(--primary);border-color:var(--primary);color:#fff}
@media(max-width:700px){.calc-inputs{grid-template-columns:1fr}}
.calc-results{margin-top:20px}
.calc-rows{margin:0;display:flex;flex-direction:column}
.calc-rows>div{
  display:flex;justify-content:space-between;align-items:baseline;gap:18px;
  padding:10px 2px;border-bottom:1px dashed var(--border);
}
.calc-rows>div:last-child{border-bottom:0}
.calc-rows dt{font-size:.88rem;color:var(--muted)}
.calc-rows dd{
  margin:0;font-variant-numeric:tabular-nums;font-weight:600;
  font-size:1.05rem;color:var(--primary);text-align:right;
}
.calc-rows dd small{font-weight:500;color:var(--muted);font-size:.78rem;margin-left:2px}
.calc-rows>div.is-total{margin-top:4px;padding:12px 10px;background:var(--surface-2);border-radius:8px;border:1px solid var(--border)}
.calc-rows>div.is-total dt{color:var(--primary);font-weight:600}
.calc-rows>div.is-total dd{color:var(--accent);font-size:1.25rem}
.calc-formula{
  margin:14px 0 0;font-size:.8rem;color:var(--muted);
  font-family:ui-monospace,'Cascadia Mono',Consolas,monospace;
  background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:8px 12px;
}
.calc-error{margin:14px 0 0;font-size:.9rem;color:var(--err);background:#fdeceb;border:1px solid #f3c4c0;border-radius:8px;padding:10px 14px}
.calc-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;padding-top:18px;border-top:1px solid var(--border)}
.calc-msg{display:none;font-size:.85rem;margin:12px 0 0;color:var(--muted)}
.calc-msg.show{display:block}
.calc-msg.error{color:var(--err)}
.calc-note{font-size:.8rem;color:var(--muted);margin:14px 2px 0;line-height:1.55}
.calc-disclaimer{
  margin:12px 2px 0;font-size:.8rem;color:var(--muted);line-height:1.55;
  background:var(--surface-2);border:1px solid var(--border);border-left:3px solid var(--accent);
  border-radius:var(--radius);padding:10px 14px;
}
.calc-disclaimer b{color:var(--primary)}

/* email-PDF modal */
.calc-mail{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:20px}
.calc-mail[hidden]{display:none}
.calc-mail__backdrop{position:absolute;inset:0;background:rgba(15,20,28,.62)}
.calc-mail__panel{
  position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow-lg);max-width:460px;width:100%;padding:26px 26px 22px;
  /* on short viewports the panel scrolls internally so the submit button
     is always reachable (100dvh corrects for mobile URL bars) */
  max-height:calc(100vh - 40px);overflow-y:auto;
  max-height:calc(100dvh - 40px);
}
.calc-mail__close{
  position:absolute;top:10px;right:10px;width:32px;height:32px;border-radius:8px;
  background:transparent;border:1px solid var(--border);color:var(--muted);
  font-size:1.2rem;cursor:pointer;
}
.calc-mail__close:hover{color:var(--accent);border-color:var(--accent)}
.calc-mail__lead{font-size:.86rem;color:var(--muted);margin:8px 0 18px}
.calc-mail .captcha-refresh{font-size:1.05rem}
@media(max-width:560px){
  .calc-wrap{padding:18px 16px}
  .calc-actions .btn{flex:1 1 100%}
}