:root {
  --navy-950: #050b14;
  --navy-900: #07101f;
  --navy-800: #0d1b31;
  --ink: #101620;
  --gold: #c9953f;
  --gold-bright: #e6bd6d;
  --gold-soft: #f0dfbd;
  --paper: #f4f0e7;
  --paper-warm: #ece4d6;
  --white: #fff;
  --red: #7c1014;
  --line: rgba(15, 22, 32, 0.16);
  --shell: min(1180px, calc(100vw - 44px));
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}
body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
.shell { width: var(--shell); margin-inline: auto; }
.section { padding: clamp(84px, 10vw, 150px) 0; }
.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;
}
.skip-link {
  position: fixed; left: 16px; top: 10px; z-index: 1000; padding: 10px 14px;
  background: var(--white); color: var(--ink); transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50; height: 82px; padding: 0 max(22px, calc((100vw - 1180px) / 2));
  display: flex; align-items: center; justify-content: space-between; color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.13); transition: background .25s ease, height .25s ease, box-shadow .25s ease;
}
.site-header.scrolled { height: 68px; background: rgba(5,11,20,.94); box-shadow: 0 12px 34px rgba(0,0,0,.2); backdrop-filter: blur(14px); }
.brand { display: inline-flex; flex: 0 0 auto; align-items: center; line-height: 1; color: var(--gold-bright); }
.brand-logo {
  width: 72px; height: 72px; object-fit: contain;
  filter: drop-shadow(0 5px 15px rgba(0,0,0,.3));
  transition: width .25s ease;
}
.site-header.scrolled .brand-logo { width: 58px; }
.brand-word { font-family: var(--serif); font-weight: 700; letter-spacing: .14em; font-size: 24px; }
.registered { margin: 1px 0 0 2px; font-size: 10px; color: var(--gold-bright); }
.site-nav { display: flex; align-items: center; gap: 30px; font-size: 14px; font-weight: 650; letter-spacing: .02em; }
.site-nav > a:not(.nav-cta) { position: relative; }
.site-nav > a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; bottom: -7px; width: 100%; height: 1px; background: var(--gold-bright); transform: scaleX(0); transform-origin: right; transition: transform .2s ease; }
.site-nav > a:not(.nav-cta):hover::after, .site-nav > a:not(.nav-cta):focus-visible::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { border: 1px solid rgba(230,189,109,.75); padding: 10px 16px; color: var(--gold-bright); }
.nav-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 0; background: transparent; cursor: pointer; }
.nav-toggle span:not(.sr-only) { display: block; height: 1px; margin: 5px 0; background: currentColor; transition: transform .2s ease, opacity .2s ease; }

.hero { min-height: 100svh; position: relative; display: flex; align-items: center; overflow: hidden; color: var(--white); background: var(--navy-950); }
.hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(3,8,17,.97) 0%, rgba(3,8,17,.84) 32%, rgba(3,8,17,.28) 60%, rgba(3,8,17,.05) 100%), linear-gradient(0deg, rgba(3,8,17,.7) 0%, transparent 38%); }
.hero-content { position: relative; z-index: 2; padding-top: 110px; }
.eyebrow { margin: 0 0 22px; color: var(--gold-bright); font-size: 12px; font-weight: 800; letter-spacing: .2em; }
.eyebrow.dark { color: #9f6e20; }
.hero h1, .section h2 { margin: 0; font-family: var(--serif); font-weight: 500; line-height: .98; letter-spacing: -.035em; }
.hero h1 { max-width: 820px; font-size: clamp(48px, 7.4vw, 104px); }
.hero h1 em { color: var(--gold-bright); font-style: italic; font-weight: 400; }
.hero-copy { max-width: 650px; margin: 30px 0 0; color: rgba(255,255,255,.83); font-size: clamp(17px, 1.7vw, 21px); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; padding: 13px 22px; border: 1px solid transparent; font-size: 14px; font-weight: 800; letter-spacing: .045em; transition: transform .2s ease, background .2s ease, border-color .2s ease; cursor: pointer; }
.button:hover { transform: translateY(-2px); }
.button-gold { background: var(--gold); color: var(--navy-950); }
.button-gold:hover { background: var(--gold-bright); }
.button-ghost { border-color: rgba(255,255,255,.55); color: var(--white); background: rgba(5,11,20,.22); }
.button-ghost:hover { border-color: var(--white); background: rgba(255,255,255,.1); }
.button-dark { background: var(--navy-900); color: var(--white); }
.hero-facts { display: flex; flex-wrap: wrap; gap: 0; list-style: none; padding: 0; margin: 46px 0 0; }
.hero-facts li { min-width: 165px; padding: 0 25px; border-left: 1px solid rgba(255,255,255,.2); }
.hero-facts li:first-child { padding-left: 0; border-left: 0; }
.hero-facts strong, .hero-facts span { display: block; }
.hero-facts strong { color: var(--gold-bright); font-family: var(--serif); font-size: 21px; }
.hero-facts span { color: rgba(255,255,255,.65); font-size: 12px; letter-spacing: .05em; }
.scroll-cue { position: absolute; z-index: 2; right: max(22px, calc((100vw - 1180px) / 2)); bottom: 28px; display: flex; gap: 14px; align-items: center; color: rgba(255,255,255,.65); font-size: 12px; letter-spacing: .16em; text-transform: uppercase; }
.scroll-cue span { color: var(--gold-bright); font-size: 19px; }

.story { background: var(--paper); }
.story-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(50px, 8vw, 120px); align-items: start; }
.section h2 { font-size: clamp(44px, 5.4vw, 76px); color: var(--navy-900); }
.story-copy { padding-top: 36px; }
.lead { margin-top: 0; font-family: var(--serif); font-size: clamp(24px, 2.6vw, 34px); line-height: 1.28; color: var(--navy-800); }
.story-copy > p:not(.lead), .partners-copy > p:not(.lead) { max-width: 680px; color: #4e5660; }
.story-signature { display: flex; align-items: center; gap: 18px; margin-top: 42px; color: #6d5b3c; font-size: 12px; font-weight: 750; letter-spacing: .11em; text-transform: uppercase; }
.story-signature .line { flex: 1; height: 1px; background: var(--line); }

.products { color: var(--white); background: var(--navy-950); }
.products .section-intro { display: grid; grid-template-columns: 1.2fr .8fr; gap: 70px; margin-bottom: 58px; align-items: end; }
.products h2 { max-width: 820px; color: var(--white); }
.section-intro > p { margin: 0 0 8px; color: rgba(255,255,255,.62); }
.product-card { display: grid; grid-template-columns: .88fr 1.12fr; min-height: 660px; margin-top: 28px; overflow: hidden; border: 1px solid rgba(255,255,255,.12); }
.product-card.energy { direction: rtl; }
.product-card.energy > * { direction: ltr; }
.product-image-wrap { position: relative; min-height: 560px; overflow: hidden; background: #160607; }
.energy .product-image-wrap { background: #080808; }
.product-image-wrap::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 90px rgba(0,0,0,.4); pointer-events: none; }
.product-image-wrap img { width: 100%; height: 100%; object-fit: cover; object-position: center; transform: scale(1.01); transition: transform .7s ease; }
.product-card:hover .product-image-wrap img { transform: scale(1.045); }
.product-content { display: flex; flex-direction: column; justify-content: center; padding: clamp(38px, 6vw, 82px); background: linear-gradient(140deg, rgba(124,16,20,.72), #140b0e 72%); }
.energy .product-content { background: linear-gradient(140deg, #18130b, #07090d 72%); }
.product-index { margin: 0 0 20px; color: var(--gold-bright); font-size: 12px; font-weight: 800; letter-spacing: .16em; }
.product-content h3 { margin: 0; font-family: var(--serif); font-size: clamp(42px, 5vw, 68px); font-weight: 500; line-height: 1; }
.product-tagline { margin: 20px 0 10px; color: var(--gold-soft); font-family: var(--serif); font-size: 24px; line-height: 1.3; }
.product-content > p:not(.product-index, .product-tagline) { max-width: 620px; color: rgba(255,255,255,.66); }
.specs { display: grid; grid-template-columns: repeat(3, 1fr); margin: 26px 0 30px; border-top: 1px solid rgba(255,255,255,.15); border-left: 1px solid rgba(255,255,255,.15); }
.specs div { padding: 17px; border-right: 1px solid rgba(255,255,255,.15); border-bottom: 1px solid rgba(255,255,255,.15); }
.specs dt { color: rgba(255,255,255,.46); font-size: 11px; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.specs dd { margin: 4px 0 0; color: var(--white); font-size: 15px; font-weight: 700; }
.text-link { width: fit-content; color: var(--gold-bright); font-weight: 800; }
.text-link span { display: inline-block; margin-left: 8px; transition: transform .2s ease; }
.text-link:hover span { transform: translate(3px,-3px); }

.trade { background: var(--paper); }
.trade-intro { display: grid; grid-template-columns: 1.15fr .85fr; gap: 70px; align-items: end; margin-bottom: 52px; }
.trade-intro h2 { max-width: 760px; }
.trade-intro > p { max-width: 520px; margin: 0 0 8px; color: #58616b; }
.carton-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.carton-card { overflow: hidden; border: 1px solid var(--line); background: #fff; }
.carton-image { position: relative; aspect-ratio: 3 / 2; overflow: hidden; background: #0a0d12; }
.carton-image::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 60px rgba(0,0,0,.18); pointer-events: none; }
.carton-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s ease; }
.carton-card:hover .carton-image img { transform: scale(1.035); }
.carton-content { padding: 34px 36px 38px; }
.carton-label { margin: 0 0 10px; color: #9f6e20; font-size: 11px; font-weight: 850; letter-spacing: .16em; }
.carton-content h3 { margin: 0; color: var(--navy-900); font-family: var(--serif); font-size: clamp(36px, 4vw, 52px); font-weight: 500; line-height: 1; }
.carton-content > p:not(.carton-label) { min-height: 52px; margin: 18px 0 26px; color: #59616b; }
.carton-specs { display: grid; grid-template-columns: 1fr 1fr; margin: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.carton-specs div { padding: 15px 16px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.carton-specs dt { color: #7b8188; font-size: 10px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.carton-specs dd { margin: 3px 0 0; color: var(--navy-900); font-weight: 750; }

.principles { padding-block: 0; background: var(--paper-warm); }
.principles-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.principle { padding: 62px 42px 68px; border-left: 1px solid var(--line); }
.principle:last-child { border-right: 1px solid var(--line); }
.principle span { color: #9f6e20; font-size: 12px; font-weight: 850; letter-spacing: .14em; }
.principle h3 { margin: 20px 0 12px; font-family: var(--serif); font-size: 30px; color: var(--navy-900); }
.principle p { margin: 0; color: #5c6066; }

.partners { background: #f7f5f0; }
.partners-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(60px, 9vw, 130px); }
.partners-copy .button { margin-top: 22px; }
.partner-types { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.partner-types div { min-height: 210px; padding: 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.partner-types span { color: #9f6e20; font-size: 12px; font-weight: 800; }
.partner-types h3 { margin: 22px 0 8px; font-family: var(--serif); font-size: 27px; color: var(--navy-900); }
.partner-types p { margin: 0; color: #5c6066; font-size: 14px; }

.sial { padding: 65px 0; color: var(--white); background: linear-gradient(110deg, #731016, #25080d 48%, var(--navy-950)); }
.sial-grid { display: grid; grid-template-columns: 1fr auto auto; gap: 50px; align-items: center; }
.sial h2 { margin: 0; color: var(--white); font-family: var(--serif); font-size: clamp(44px, 5vw, 70px); font-weight: 500; }
.sial p:not(.eyebrow) { max-width: 680px; margin-bottom: 0; color: rgba(255,255,255,.66); }
.stand-mark { min-width: 190px; padding: 18px 26px; border-left: 1px solid rgba(255,255,255,.2); }
.stand-mark span, .stand-mark strong { display: block; }
.stand-mark span { color: var(--gold-bright); font-size: 11px; font-weight: 800; letter-spacing: .18em; }
.stand-mark strong { margin-top: 5px; font-family: var(--serif); font-size: 34px; font-weight: 500; }

.faq { background: var(--paper); }
.faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(60px, 9vw, 130px); }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 24px 46px 24px 0; color: var(--navy-900); font-weight: 750; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 21px; color: #9f6e20; font-family: var(--serif); font-size: 27px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: -5px 50px 24px 0; color: #5c6066; }

.contact { color: var(--white); background: var(--navy-950); }
.contact-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(60px, 9vw, 130px); }
.contact h2 { color: var(--white); }
.contact-intro > p:not(.eyebrow) { max-width: 520px; color: rgba(255,255,255,.64); }
.contact-meta { display: grid; margin-top: 48px; color: rgba(255,255,255,.55); font-size: 14px; }
.contact-meta strong { margin: 7px 0; color: var(--gold-bright); font-family: var(--serif); font-size: 25px; font-weight: 500; }
.direct-contacts { display: grid; margin-top: 32px; border-top: 1px solid rgba(255,255,255,.14); }
.direct-contact { display: grid; grid-template-columns: 76px 1fr; gap: 12px; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.direct-contact span { color: rgba(255,255,255,.46); font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.direct-contact b { color: var(--white); font-size: 14px; font-weight: 650; word-break: break-word; }
.direct-contact:hover b, .direct-contact:focus-visible b { color: var(--gold-bright); }
.contact-form { padding: clamp(30px, 4vw, 54px); border: 1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.035); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.contact-form label { display: grid; gap: 8px; margin-bottom: 20px; color: rgba(255,255,255,.72); font-size: 13px; font-weight: 700; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; border: 1px solid rgba(255,255,255,.18); border-radius: 0; outline: 0; background: rgba(255,255,255,.045); color: var(--white); padding: 14px 15px; min-height: 50px; }
.contact-form textarea { resize: vertical; }
.contact-form select { color-scheme: dark; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--gold-bright); box-shadow: 0 0 0 3px rgba(230,189,109,.12); }
.contact-form ::placeholder { color: rgba(255,255,255,.32); }
.form-footer { display: flex; gap: 22px; align-items: center; justify-content: space-between; }
.form-footer p { max-width: 360px; margin: 0; color: rgba(255,255,255,.45); font-size: 12px; }
.form-actions { display: flex; gap: 10px; flex: 0 0 auto; }
.form-status { min-height: 24px; margin: 14px 0 0; color: var(--gold-bright); font-size: 13px; }

.footer { padding: 52px 0; color: rgba(255,255,255,.55); background: #02060d; }
.footer-grid { display: grid; grid-template-columns: .8fr 1.2fr .8fr; gap: 40px; align-items: end; }
.footer-logo { width: 120px; height: auto; filter: drop-shadow(0 8px 24px rgba(0,0,0,.28)); }
.footer .brand-word { color: var(--gold-bright); }
.footer p { margin: 0; font-size: 13px; }
.footer p:last-child { text-align: right; }

.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.visible { opacity: 1; transform: translateY(0); }

:focus-visible { outline: 2px solid var(--gold-bright); outline-offset: 4px; }

@media (max-width: 940px) {
  .site-header { height: 70px; }
  .brand-logo { width: 60px; }
  .site-header.scrolled .brand-logo { width: 54px; }
  .nav-toggle { display: block; }
  .site-nav { position: fixed; inset: 70px 0 0; display: grid; align-content: start; gap: 0; padding: 32px 22px; background: rgba(5,11,20,.985); transform: translateX(100%); transition: transform .25s ease; }
  .site-nav.open { transform: translateX(0); }
  .site-nav a { padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.12); font-size: 19px; }
  .site-nav .nav-cta { margin-top: 24px; padding: 15px; text-align: center; }
  .nav-toggle[aria-expanded="true"] span:nth-of-type(2) { transform: translateY(6px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-of-type(3) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-of-type(4) { transform: translateY(-6px) rotate(-45deg); }
  .hero-image { object-position: 61% center; }
  .hero-shade { background: linear-gradient(90deg, rgba(3,8,17,.96), rgba(3,8,17,.68)), linear-gradient(0deg, rgba(3,8,17,.8), transparent); }
  .hero-content { padding-top: 90px; }
  .story-grid, .products .section-intro, .trade-intro, .partners-grid, .faq-grid, .contact-grid { grid-template-columns: 1fr; }
  .story-copy { padding-top: 0; }
  .product-card { grid-template-columns: 1fr; }
  .product-card.energy { direction: ltr; }
  .product-image-wrap { min-height: 520px; }
  .principles-grid { grid-template-columns: 1fr; }
  .trade-intro { gap: 26px; }
  .carton-grid { grid-template-columns: 1fr; }
  .principle, .principle:last-child { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .sial-grid { grid-template-columns: 1fr auto; }
  .sial .button { grid-column: 1 / -1; width: fit-content; }
}

@media (max-width: 640px) {
  :root { --shell: min(100% - 30px, 1180px); }
  .section { padding: 78px 0; }
  .hero { min-height: 860px; align-items: flex-end; }
  .hero-content { padding: 110px 0 112px; }
  .hero h1 { font-size: clamp(45px, 14vw, 66px); }
  .hero-copy { font-size: 17px; }
  .hero-actions .button { width: 100%; }
  .hero-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 0; }
  .hero-facts li, .hero-facts li:first-child { min-width: 0; padding: 0 14px; border-left: 1px solid rgba(255,255,255,.2); }
  .hero-facts li:nth-child(odd) { padding-left: 0; border-left: 0; }
  .scroll-cue { display: none; }
  .section h2 { font-size: 44px; }
  .story-signature { align-items: flex-start; flex-direction: column; gap: 8px; }
  .story-signature .line { width: 70px; flex: none; }
  .product-image-wrap { min-height: 450px; }
  .product-content { padding: 34px 24px 42px; }
  .product-content h3 { font-size: 46px; }
  .specs { grid-template-columns: 1fr 1fr; }
  .brand-logo { width: 56px; }
  .carton-content { padding: 28px 24px 32px; }
  .carton-content > p:not(.carton-label) { min-height: 0; }
  .partner-types { grid-template-columns: 1fr; }
  .partner-types div { min-height: 0; }
  .sial-grid { grid-template-columns: 1fr; }
  .stand-mark { border-left: 0; border-top: 1px solid rgba(255,255,255,.2); padding-left: 0; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .form-footer { align-items: flex-start; flex-direction: column; }
  .form-actions { width: 100%; flex-direction: column; }
  .form-footer .button { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer p:last-child { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
}