:root {
  --charcoal: #14100f;
  --charcoal-800: #1a1513;
  --charcoal-700: #211b18;
  --charcoal-600: #3a332f;
  --rust: #e8641c;
  --rust-light: #f47a35;
  --rust-dark: #b94613;
  --warm-white: #f5efe8;
  --warm-dim: #c7bbb0;
  --warm-faint: #8d8178;
  --burgundy: #4a0f1a;
  --container: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--charcoal); color: var(--warm-white); font-family: Inter, system-ui, sans-serif; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--rust); outline-offset: 3px; }

.container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
.section { padding: 112px 0; background: var(--charcoal); }
.section-alt { background: var(--charcoal-800); }
.section-heading { max-width: 700px; margin-bottom: 48px; }
.wide-heading { max-width: 780px; }
.eyebrow { margin: 0 0 12px; color: var(--rust); font: 500 0.78rem/1.4 "JetBrains Mono", monospace; text-transform: uppercase; letter-spacing: 0.22em; }
h1, h2, h3 { margin-top: 0; font-family: "Barlow Condensed", Impact, sans-serif; text-transform: uppercase; letter-spacing: 0.01em; line-height: 1.04; }
h1 { max-width: 950px; margin-bottom: 24px; font-size: clamp(3.2rem, 7.2vw, 6.4rem); }
h2 { margin-bottom: 18px; font-size: clamp(2.4rem, 5vw, 4.2rem); }
h3 { margin-bottom: 10px; font-size: 1.35rem; }
p { color: var(--warm-dim); }

.site-header { position: fixed; inset: 0 0 auto; z-index: 50; transition: background 180ms ease, border-color 180ms ease; }
.site-header.scrolled, .site-header.menu-open { background: rgba(20,16,15,.96); border-bottom: 1px solid var(--charcoal-600); backdrop-filter: blur(12px); }
.header-inner { min-height: 80px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand-mark { width: 46px; height: 46px; object-fit: contain; }
.brand-copy { display: flex; flex-direction: column; line-height: 1; text-transform: uppercase; }
.brand-copy strong { color: var(--warm-white); font-family: Inter, system-ui, sans-serif; font-size: 1.25rem; font-weight: 700; letter-spacing: .02em; }
.brand-copy small { margin-top: 7px; color: var(--warm-faint); font-size: .64rem; font-weight: 500; letter-spacing: .22em; }
.main-nav { margin-left: auto; display: flex; align-items: center; gap: 21px; }
.main-nav > a:not(.button) { color: var(--warm-dim); font-size: .86rem; white-space: nowrap; border-bottom: 2px solid transparent; padding: 8px 0; transition: color 160ms ease, border-color 160ms ease; }
.main-nav > a:not(.button):hover { color: var(--warm-white); border-color: var(--rust); }
.menu-button { display: none; width: 44px; height: 44px; margin-left: auto; background: transparent; border: 0; padding: 9px; cursor: pointer; }
.menu-button span { display: block; height: 2px; margin: 6px 0; background: var(--warm-white); transition: transform 180ms ease, opacity 180ms ease; }
.menu-button.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-button.active span:nth-child(2) { opacity: 0; }
.menu-button.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; border: 1px solid var(--rust); background: var(--rust); color: var(--charcoal); padding: 12px 22px; font-weight: 700; cursor: pointer; transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease; }
.button:hover { background: var(--rust-light); border-color: var(--rust-light); transform: translateY(-1px); }
.button-outline { background: transparent; color: var(--warm-white); border-color: rgba(245,239,232,.28); }
.button-outline:hover { background: var(--rust); color: var(--charcoal); border-color: var(--rust); }
.button-small { min-height: 42px; padding: 9px 16px; font-size: .84rem; }

.hero { position: relative; min-height: 100vh; display: flex; align-items: flex-end; overflow: hidden; background: radial-gradient(circle at 78% 38%, rgba(232,100,28,.25), transparent 22%), linear-gradient(115deg, #14100f 5%, #3d251d 55%, #14100f 100%); }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, var(--charcoal) 0, rgba(20,16,15,.78) 50%, rgba(20,16,15,.28) 100%); }
.hero-grid { position: absolute; inset: 0; background-image: repeating-linear-gradient(135deg, rgba(255,255,255,.025) 0, rgba(255,255,255,.025) 1px, transparent 1px, transparent 20px); }
.hero-content { position: relative; z-index: 3; padding-top: 165px; padding-bottom: 110px; }
.hero-copy { max-width: 720px; margin: 0; font-size: clamp(1.05rem, 2vw, 1.25rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }
.hero-ring { position: absolute; z-index: 1; border: 1px solid rgba(232,100,28,.24); border-radius: 50%; }
.hero-ring-one { width: 360px; height: 360px; right: -80px; top: 130px; }
.hero-ring-two { width: 230px; height: 230px; right: 70px; top: 230px; }
.extrusion-line { position: absolute; z-index: 4; inset: 0 0 auto; height: 2px; overflow: hidden; }
.extrusion-line span { display: block; width: 35%; height: 100%; background: linear-gradient(90deg, transparent, var(--rust), transparent); animation: extrude 6s ease-in-out infinite; }
@keyframes extrude { 0% { transform: translateX(-120%); } 50%, 100% { transform: translateX(330%); } }

.two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 76px; align-items: start; }
.overview-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 36px; }
.overview-card { min-height: 128px; display: flex; flex-direction: column; justify-content: flex-end; border: 1px solid var(--charcoal-600); background: linear-gradient(145deg, var(--charcoal-700), #181310); padding: 18px; }
.overview-card strong { font-family: "Barlow Condensed", sans-serif; font-size: 1.25rem; text-transform: uppercase; }
.overview-card span { margin-top: 5px; color: var(--warm-faint); font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; }
.pillar-grid, .quality-grid, .certification-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.quality-grid { grid-template-columns: repeat(3, 1fr); }
.certification-grid { grid-template-columns: repeat(4, 1fr); }
.plate-card { position: relative; min-height: 100%; border: 1px solid var(--charcoal-600); background: var(--charcoal-700); padding: 26px; box-shadow: 0 18px 55px rgba(0,0,0,.18); }
.plate-card::before, .plate-card::after { content: ""; position: absolute; width: 13px; height: 13px; border-color: var(--rust); opacity: .75; }
.plate-card::before { inset: -1px auto auto -1px; border-top: 2px solid var(--rust); border-left: 2px solid var(--rust); }
.plate-card::after { inset: auto -1px -1px auto; border-right: 2px solid var(--rust); border-bottom: 2px solid var(--rust); }
.plate-card p { margin-bottom: 0; color: var(--warm-faint); font-size: .9rem; }
.icon-box { width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center; margin-bottom: 17px; border: 1px solid var(--charcoal-600); color: var(--rust); font-family: "JetBrains Mono", monospace; font-weight: 700; }
.code { color: var(--rust) !important; font: 500 .75rem "JetBrains Mono", monospace; letter-spacing: .08em; }

[hidden] { display: none !important; }

.factory-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.factory-photo { position: relative; min-height: 260px; overflow: hidden; border: 1px solid var(--charcoal-600); background: var(--charcoal-700); }
.factory-photo::after { content: "↗"; position: absolute; right: 14px; bottom: 12px; width: 34px; height: 34px; display: grid; place-items: center; background: rgba(20,16,15,.82); color: var(--rust); font-family: "JetBrains Mono", monospace; }
.factory-photo img { width: 100%; height: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform 260ms ease; }
.factory-photo:hover img { transform: scale(1.025); }

.certificate-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 20px; color: var(--warm-white); font: 600 .75rem "JetBrains Mono", monospace; text-transform: uppercase; letter-spacing: .04em; }
.certificate-link:hover { color: var(--rust); }

.catalog-controls { margin-bottom: 42px; }
.search-field { display: flex; align-items: center; gap: 14px; width: 100%; border: 1px solid var(--charcoal-600); background: var(--charcoal-700); padding: 0 16px; }
.search-field > span { color: var(--warm-faint); font-size: 1.3rem; }
.search-field input { width: 100%; border: 0; outline: 0; background: transparent; color: var(--warm-white); padding: 16px 0; }
.search-field input::placeholder { color: var(--warm-faint); }
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.filter-chip { border: 1px solid var(--charcoal-600); background: transparent; color: var(--warm-dim); padding: 9px 13px; font-size: .76rem; text-transform: uppercase; letter-spacing: .05em; cursor: pointer; }
.filter-chip:hover, .filter-chip.active { border-color: var(--rust); }
.filter-chip.active { background: var(--rust); color: var(--charcoal); font-weight: 700; }
.percentage-row { display: flex; align-items: center; flex-wrap: wrap; gap: 13px; margin-top: 4px; }
.percentage-row .filter-row { margin-top: 0; }
.filter-label { color: var(--warm-faint); font: 500 .7rem "JetBrains Mono", monospace; text-transform: uppercase; letter-spacing: .1em; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.product-card { position: relative; display: flex; flex-direction: column; border: 1px solid var(--charcoal-600); background: var(--charcoal-700); padding: 25px; transition: border-color 160ms ease, transform 160ms ease; }
.product-card:hover { border-color: rgba(232,100,28,.7); transform: translateY(-2px); }
.product-card-header { display: flex; align-items: start; justify-content: space-between; gap: 16px; margin-bottom: 17px; }
.product-code { margin: 0; color: var(--warm-white); font: 500 1.05rem "JetBrains Mono", monospace; }
.product-category { display: flex; align-items: center; gap: 8px; margin-top: 5px; color: var(--warm-faint); font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; }
.category-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--rust); }
.polymer-tag { border: 1px solid var(--charcoal-600); color: var(--warm-dim); padding: 4px 8px; font-family: "Barlow Condensed", sans-serif; text-transform: uppercase; }
.product-card h3 { font-size: 1.4rem; }
.product-description { flex: 1; color: var(--warm-faint); font-size: .88rem; }
.material-row { display: flex; justify-content: space-between; gap: 15px; margin-bottom: 8px; color: var(--warm-faint); font: 400 .68rem "JetBrains Mono", monospace; text-transform: uppercase; }
.material-row strong { color: var(--rust); font-size: .8rem; }
.gauge { height: 8px; margin-bottom: 20px; background: var(--charcoal-600); }
.gauge span { display: block; height: 100%; background: linear-gradient(90deg, var(--rust-dark), var(--rust)); }
.product-card .button { width: 100%; }
.empty-state { padding: 70px 20px; border: 1px dashed var(--charcoal-600); text-align: center; }
.empty-state p { margin-bottom: 0; color: var(--warm-faint); }

.future-section { position: relative; background: var(--burgundy); overflow: hidden; }
.future-section::before { content: ""; position: absolute; inset: 0; background-image: repeating-linear-gradient(135deg, rgba(255,255,255,.025) 0, rgba(255,255,255,.025) 1px, transparent 1px, transparent 20px); }
.future-section .container { position: relative; }
.future-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.future-grid article { padding: 25px; border: 1px solid rgba(255,255,255,.12); background: rgba(20,16,15,.38); }
.future-grid article p { margin-bottom: 0; color: rgba(245,239,232,.72); }

.contact-layout { display: grid; grid-template-columns: 3fr 2fr; gap: 38px; }
.quote-form { display: flex; flex-direction: column; gap: 16px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.quote-form label > span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.quote-form input, .quote-form textarea { width: 100%; border: 1px solid var(--charcoal-600); outline: 0; background: var(--charcoal-700); color: var(--warm-white); padding: 15px 16px; transition: border-color 160ms ease; }
.quote-form input:focus, .quote-form textarea:focus { border-color: var(--rust); }
.quote-form input::placeholder, .quote-form textarea::placeholder { color: var(--warm-faint); }
.quote-form textarea { resize: vertical; min-height: 170px; }
.form-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.contact-details { display: flex; flex-direction: column; gap: 12px; }
.contact-card { display: flex; align-items: center; gap: 15px; border: 1px solid var(--charcoal-600); background: var(--charcoal-700); padding: 17px 19px; transition: border-color 160ms ease; }
a.contact-card:hover { border-color: var(--rust); }
.contact-card .icon-box { flex: 0 0 42px; margin: 0; }
.contact-card small { display: block; margin-bottom: 3px; color: var(--warm-faint); font-size: .66rem; text-transform: uppercase; letter-spacing: .1em; }
.contact-card strong { display: block; color: var(--warm-white); font-size: .84rem; font-weight: 500; }
.map-wrap { min-height: 190px; border: 1px solid var(--charcoal-600); background: var(--charcoal-700); }
.map-wrap iframe { width: 100%; min-height: 190px; height: 100%; border: 0; }

.site-footer { border-top: 1px solid var(--charcoal-600); background: var(--charcoal); padding: 64px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 44px; padding-bottom: 45px; }
.footer-brand { margin-bottom: 18px; }
.footer-grid p { max-width: 390px; color: var(--warm-faint); font-size: .86rem; }
.footer-grid h3 { margin-bottom: 16px; font-size: 1rem; }
.footer-grid > div:not(:first-child) { display: flex; flex-direction: column; align-items: flex-start; }
.footer-grid a { margin-bottom: 8px; color: var(--warm-faint); font-size: .83rem; }
.footer-grid a:hover { color: var(--rust); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid var(--charcoal-600); padding-top: 23px; }
.footer-bottom p { margin: 0; color: var(--warm-faint); font-size: .72rem; }

.floating-whatsapp { position: fixed; right: 24px; bottom: 24px; z-index: 45; width: 58px; height: 58px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: var(--rust); color: var(--charcoal); font: 700 .82rem "JetBrains Mono", monospace; box-shadow: 0 15px 35px rgba(0,0,0,.4); transition: background 160ms ease, transform 160ms ease; }
.floating-whatsapp:hover { background: var(--rust-light); transform: translateY(-2px); }

.modal[hidden] { display: none; }
.modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 20px; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(20,16,15,.88); backdrop-filter: blur(8px); }
.modal-panel { position: relative; z-index: 1; width: min(470px, 100%); border: 1px solid var(--charcoal-600); background: var(--charcoal-700); padding: 32px; box-shadow: 0 30px 90px rgba(0,0,0,.5); }
.modal-panel h2 { margin-bottom: 4px; font-size: 2.2rem; }
.modal-code { margin-top: 0; color: var(--rust); font: 500 .78rem "JetBrains Mono", monospace; }
.modal-close { position: absolute; right: 13px; top: 8px; border: 0; background: transparent; color: var(--warm-faint); font-size: 2rem; cursor: pointer; }
.modal-actions { display: grid; gap: 11px; margin-top: 23px; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 1180px) {
  .menu-button { display: block; }
  .main-nav { position: absolute; left: 0; right: 0; top: 80px; display: none; flex-direction: column; align-items: stretch; gap: 0; margin: 0; border-top: 1px solid var(--charcoal-600); background: var(--charcoal); padding: 16px 20px 24px; }
  .main-nav.open { display: flex; }
  .main-nav > a:not(.button) { padding: 12px 0; border-bottom: 1px solid var(--charcoal-700); }
  .main-nav .button { margin-top: 16px; }
}

@media (max-width: 900px) {
  .section { padding: 88px 0; }
  .two-column, .contact-layout { grid-template-columns: 1fr; }
  .quality-grid { grid-template-columns: repeat(2, 1fr); }
  .certification-grid, .future-grid { grid-template-columns: repeat(2, 1fr); }
  .factory-gallery { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 620px) {
  .container { width: min(100% - 28px, var(--container)); }
  .header-inner { min-height: 72px; }
  .brand { gap: 9px; }
  .brand-mark { width: 39px; height: 39px; }
  .brand-copy strong { font-size: 1.02rem; }
  .brand-copy small { margin-top: 5px; font-size: .52rem; letter-spacing: .18em; }
  .main-nav { top: 72px; }
  .hero-content { padding-top: 145px; padding-bottom: 78px; }
  .hero-actions, .form-actions { flex-direction: column; }
  .hero-actions .button, .form-actions .button { width: 100%; }
  .pillar-grid, .quality-grid, .certification-grid, .future-grid, .form-grid, .footer-grid, .factory-gallery { grid-template-columns: 1fr; }
  .percentage-row { align-items: flex-start; flex-direction: column; }
  .footer-bottom { flex-direction: column; }
  .floating-whatsapp { right: 16px; bottom: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

/* Entire certification cards open their matching PDF in a new tab. */
.certificate-card {
  display: block;
  color: inherit;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}
.certificate-card:hover,
.certificate-card:focus-visible {
  border-color: var(--rust);
  background: #241d1a;
  transform: translateY(-3px);
  outline: none;
}
.certificate-card:focus-visible {
  box-shadow: 0 0 0 3px rgba(240, 90, 21, .25), 0 18px 55px rgba(0,0,0,.18);
}
.certificate-card .certificate-link {
  transition: color 160ms ease;
}
.certificate-card:hover .certificate-link,
.certificate-card:focus-visible .certificate-link {
  color: var(--rust);
}