:root {
  --green-950: #071712;
  --green-900: #0d241c;
  --green-800: #17352a;
  --green-700: #255241;
  --paper: #f2f0e9;
  --paper-dark: #e2dfd4;
  --ink: #12231c;
  --muted: #66736d;
  --copper: #c89b46;
  --copper-light: #e6ca85;
  --lime: #c8d945;
  --white: #fffdf7;
  --line: rgba(18, 35, 28, .16);
  --max: 1320px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Segoe UI", Arial, sans-serif; font-size: 16px; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; }
.skip-link { position: fixed; z-index: 1000; left: 1rem; top: -5rem; padding: .8rem 1rem; color: var(--green-950); background: var(--white); font-weight: 800; transition: top .2s; }
.skip-link:focus { top: 1rem; }

.topline { position: absolute; z-index: 30; inset: 0 0 auto; min-height: 42px; padding: 0 max(24px, calc((100vw - var(--max)) / 2 + 32px)); display: flex; align-items: center; justify-content: space-between; gap: 2rem; color: rgba(255,255,255,.7); background: rgba(4,15,11,.7); border-bottom: 1px solid rgba(255,255,255,.12); font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; }
.topline div { display: flex; gap: 2rem; }
.topline strong { color: var(--copper-light); font-size: .73rem; }
.site-header { position: fixed; z-index: 45; inset: 42px 0 auto; height: 96px; margin: auto; padding: 0 max(24px, calc((100vw - var(--max)) / 2 + 32px)); display: flex; align-items: center; justify-content: space-between; color: var(--white); transition: top .25s ease, height .25s ease, background .25s ease, box-shadow .25s ease; }
.site-header.is-scrolled { top: 0; height: 78px; background: rgba(5, 20, 15, .94); box-shadow: 0 12px 34px rgba(0, 0, 0, .18); backdrop-filter: blur(14px); }
.brand { display: inline-flex; align-items: center; gap: .75rem; text-decoration: none; }
.brand-logo { width: 168px; height: 66px; object-fit: cover; object-position: center; }
.brand-acs { display: inline-block; color: var(--white); font-family: "Arial Narrow", "Segoe UI", Arial, sans-serif; font-size: 3rem; font-weight: 900; line-height: .8; letter-spacing: -.08em; }
.brand-acs::after { content: ""; display: block; width: 100%; height: 5px; margin-top: 6px; background: var(--copper); clip-path: polygon(0 0, 100% 0, 88% 100%, 0 100%); }
.brand-name { padding-left: .8rem; border-left: 1px solid rgba(255,255,255,.35); color: rgba(255,255,255,.78); font-size: .73rem; font-weight: 800; line-height: 1.25; letter-spacing: .1em; text-transform: uppercase; }
.main-nav { display: flex; align-items: center; gap: clamp(1.2rem, 2.4vw, 2.5rem); font-size: .86rem; font-weight: 700; }
.main-nav a { position: relative; text-decoration: none; }
.main-nav a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -.6rem; height: 2px; background: var(--copper); transition: right .25s; }
.main-nav a:hover::after { right: 0; }
.main-nav .nav-cta { padding: .9rem 1.15rem; color: var(--green-950); background: var(--copper-light); }
.menu-toggle { display: none; }

.hero { position: relative; height: min(970px, 100vh); min-height: 790px; padding: 190px max(24px, calc((100vw - var(--max)) / 2 + 32px)) 44px; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; color: var(--white); background: var(--green-950); }
.hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; filter: saturate(.88) contrast(1.03); }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,15,11,.97) 0%, rgba(4,15,11,.86) 36%, rgba(4,15,11,.28) 70%, rgba(4,15,11,.16) 100%), linear-gradient(0deg, rgba(4,15,11,.86), transparent 46%); }
.hero-rail { position: absolute; z-index: 1; left: max(24px, calc((100vw - var(--max)) / 2 + 32px)); top: 174px; bottom: 164px; width: 4px; background: linear-gradient(var(--copper), transparent); }
.hero-content { position: relative; z-index: 2; max-width: 720px; padding: 5rem 0 0 2.2rem; }
.hero-label, .kicker { margin: 0 0 1.4rem; color: var(--copper); font-size: .78rem; font-weight: 850; letter-spacing: .16em; text-transform: uppercase; }
.kicker.light { color: var(--copper-light); }
.hero h1, .section h2, .process h2, .capacity h2, .faq h2, .contact h2 { margin: 0; font-family: "Arial Narrow", "Segoe UI", Arial, sans-serif; font-size: clamp(3rem, 5.5vw, 5.6rem); font-weight: 600; line-height: .94; letter-spacing: -.055em; }
.hero h1 { max-width: 760px; font-size: clamp(2.5rem, 4.3vw, 4.5rem); }
.hero-lead { max-width: 650px; margin: 1.8rem 0 0; color: rgba(255,255,255,.76); font-size: 1.15rem; line-height: 1.6; }
.hero-actions { margin-top: 2.1rem; display: flex; flex-wrap: wrap; gap: .8rem; }
.button { min-height: 58px; padding: 0 1.4rem; display: inline-flex; align-items: center; justify-content: space-between; gap: 2.2rem; text-decoration: none; font-size: .9rem; font-weight: 800; transition: transform .2s, background .2s, color .2s; }
.button:hover { transform: translateY(-2px); }
.button-copper { color: var(--green-950); background: var(--copper-light); }
.button-copper:hover { background: #ffba79; }
.button-ghost { color: var(--white); border: 1px solid rgba(255,255,255,.38); background: rgba(0,0,0,.08); }
.button-light { color: var(--green-950); background: var(--white); }
.button-whatsapp { color: #063b23; background: #25d366; }
.button-whatsapp:hover { background: #45e17e; }
.hero-bottom { position: relative; z-index: 2; padding-left: 2.2rem; display: grid; grid-template-columns: repeat(3, minmax(135px, 190px)) 1fr; align-items: end; gap: 2.4rem; border-top: 1px solid rgba(255,255,255,.24); padding-top: 1.4rem; }
.hero-bottom > div { display: flex; align-items: center; gap: .8rem; }
.hero-bottom strong { font-family: "Arial Narrow", Arial, sans-serif; font-size: 2.2rem; line-height: 1; }
.hero-bottom span { color: rgba(255,255,255,.62); font-size: .76rem; font-weight: 650; line-height: 1.4; text-transform: uppercase; }
.hero-bottom small { justify-self: end; color: rgba(255,255,255,.45); font-size: .75rem; }
.hero-artwork { height: min(970px, 100vh); min-height: 790px; padding: 138px 0 0; display: grid; place-items: center; background: #06150f; }
.hero-artwork-image { position: static; width: 100%; height: 100%; object-fit: contain; object-position: center top; filter: none; }
.hero-artwork-cta { position: absolute; z-index: 3; right: max(24px, calc((100vw - var(--max)) / 2 + 32px)); bottom: 30px; min-height: 58px; padding: 0 1.4rem; display: inline-flex; align-items: center; justify-content: space-between; gap: 2rem; color: var(--green-950); background: var(--copper-light); box-shadow: 0 16px 34px rgba(0,0,0,.28); text-decoration: none; font-size: .9rem; font-weight: 800; }
.hero-company { height: min(900px, 100vh); min-height: 700px; padding: 0; display: grid; place-items: center; background: #06150f; }
.hero-company-image { width: 100%; height: 100%; object-fit: contain; object-position: center; }
.hero-company-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(3,15,10,.86) 0%, rgba(3,15,10,.58) 25%, transparent 55%); }
.hero-company-title { position: absolute; z-index: 2; left: max(24px, calc((100vw - var(--max)) / 2 + 32px)); top: 28%; display: flex; flex-direction: column; font-family: "Arial Narrow", Arial, sans-serif; font-size: clamp(4rem, 8vw, 8rem); font-weight: 900; line-height: .82; letter-spacing: -.06em; }
.hero-company-title span { color: var(--white); }
.hero-company-title strong { color: #9fbd38; }

.brand-manifesto { min-height: 480px; display: grid; align-items: center; overflow: hidden; background: var(--paper); }
.manifesto-copy { width: 100%; max-width: var(--max); margin: auto; padding: 2.25rem 32px 5.5rem; }
.manifesto-copy h2 { margin: 0; font-family: "Arial Narrow", Arial, sans-serif; font-size: clamp(2.8rem, 5vw, 5rem); font-weight: 600; line-height: .95; letter-spacing: -.05em; }
.manifesto-copy > p:not(.kicker) { margin: 1.3rem 0 0; color: var(--muted); font-size: 1.08rem; line-height: 1.7; }
.manifesto-copy > h2 + p { margin-top: 2rem; }
.application-list { margin-top: 2.4rem; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.application-list span { min-height: 64px; padding: .9rem 1rem; display: flex; align-items: center; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--green-800); font-size: .76rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.proof-strip { min-height: 74px; padding: 0 max(24px, calc((100vw - var(--max)) / 2 + 32px)); display: flex; align-items: center; justify-content: space-between; gap: 1.2rem; color: var(--white); background: var(--green-900); font-size: .78rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; white-space: nowrap; overflow: hidden; }
.proof-strip i { width: 5px; height: 5px; background: var(--copper); transform: rotate(45deg); }

.section { max-width: var(--max); margin: auto; padding: 8rem 32px; }
.section-heading { margin-bottom: 4rem; display: grid; grid-template-columns: 1.35fr .65fr; align-items: end; gap: 8vw; }
.section-heading h2 { max-width: 830px; }
.section-heading > p { margin: 0; color: var(--muted); font-size: 1.05rem; line-height: 1.7; }
.product-feature { position: relative; min-height: 570px; padding: 4.5rem; display: flex; align-items: flex-end; overflow: hidden; color: var(--white); background: linear-gradient(135deg, var(--green-800), var(--green-950)); }
.feature-number { position: absolute; top: 2rem; left: 2.2rem; color: rgba(255,255,255,.5); font-size: .85rem; font-weight: 800; }
.feature-copy { position: relative; z-index: 2; width: 57%; max-width: 710px; }
.feature-copy h3, .product-card h3 { margin: 0; font-family: "Arial Narrow", Arial, sans-serif; font-size: clamp(2.4rem, 4.4vw, 4.6rem); font-weight: 580; line-height: .96; letter-spacing: -.045em; }
.feature-copy > p:not(.kicker) { max-width: 650px; margin: 1.5rem 0 0; color: rgba(255,255,255,.7); font-size: 1.04rem; line-height: 1.65; }
.feature-specs { margin-top: 2.2rem; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.18); border-left: 1px solid rgba(255,255,255,.18); }
.feature-specs div { padding: 1.2rem; border-right: 1px solid rgba(255,255,255,.18); border-bottom: 1px solid rgba(255,255,255,.18); }
.feature-specs span { display: block; margin-bottom: .55rem; color: rgba(255,255,255,.48); font-size: .76rem; text-transform: uppercase; }
.feature-specs strong { font-size: 1.05rem; }
.arrow-link { margin-top: 2rem; display: inline-flex; gap: 2rem; color: var(--copper-light); text-decoration: none; font-size: .9rem; font-weight: 800; }
.feature-photo { position: absolute; inset: 0 0 0 62%; margin: 0; overflow: hidden; }
.feature-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--green-950), transparent 42%); }
.feature-photo img { width: 100%; height: 100%; object-fit: cover; }
.feature-photo figcaption { position: absolute; z-index: 2; right: 1.2rem; bottom: 1.2rem; padding: .55rem .7rem; background: rgba(7,23,18,.76); color: rgba(255,255,255,.78); font-size: .75rem; }
.product-cards { display: grid; grid-template-columns: repeat(3, 1fr); border-left: 1px solid var(--line); }
.product-card { position: relative; min-height: 500px; padding: 2.2rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.23); }
.product-card-image { width: calc(100% + 4.4rem); height: 190px; margin: -2.2rem -2.2rem 2rem; object-fit: cover; background: var(--paper-dark); }
.product-card-image-contain { object-fit: contain; padding: .35rem; background: #ece9df; }
.card-number { position: absolute; top: 2rem; right: 2rem; color: #87918b; font-size: .84rem; }
.product-card .kicker { margin-top: 1rem; }
.product-card h3 { max-width: 360px; font-size: 2.2rem; }
.product-card > p:not(.kicker) { margin: 1.4rem 0 0; color: var(--muted); line-height: 1.65; }
.product-card ul { margin: 2rem 0 0; padding: 1.4rem 0 0; border-top: 1px solid var(--line); list-style: none; }
.product-card li { position: relative; margin: .7rem 0; padding-left: 1.1rem; color: #495a52; font-size: .9rem; line-height: 1.45; }
.product-card li::before { content: ""; position: absolute; left: 0; top: .55rem; width: 5px; height: 5px; background: var(--copper); transform: rotate(45deg); }

.railway-portfolio { padding: 8rem max(24px, calc((100vw - var(--max)) / 2 + 32px)); color: var(--white); background: #071712; }
.railway-heading { max-width: var(--max); margin: 0 auto 4rem; display: grid; grid-template-columns: 1.2fr .8fr; gap: 8vw; align-items: end; }
.railway-heading h2 { max-width: 820px; margin: 0; font-family: "Arial Narrow", "Segoe UI", Arial, sans-serif; font-size: clamp(3rem, 5.7vw, 6rem); font-weight: 600; line-height: .92; letter-spacing: -.055em; }
.railway-heading > p { margin: 0; color: rgba(255,255,255,.62); font-size: 1.02rem; line-height: 1.7; }
.railway-grid { max-width: var(--max); margin: auto; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.4rem; }
.railway-card { position: relative; min-height: 420px; margin: 0; overflow: hidden; border: 1px solid rgba(255,255,255,.14); background: var(--green-800); }
.railway-card-wide { grid-column: 1 / -1; min-height: 500px; }
.railway-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease; }
.railway-card-wide img { object-position: center; }
.railway-card:hover img { transform: scale(1.025); }
.railway-card::after { content: ""; position: absolute; inset: 35% 0 0; background: linear-gradient(transparent, rgba(3,13,9,.96)); }
.railway-card figcaption { position: absolute; z-index: 2; inset: auto 0 0; padding: 5rem 1.6rem 1.5rem; display: grid; }
.railway-card figcaption span { margin-bottom: .55rem; color: var(--copper-light); font-size: .72rem; font-weight: 850; letter-spacing: .11em; text-transform: uppercase; }
.railway-card figcaption strong { font-family: "Arial Narrow", Arial, sans-serif; font-size: 1.65rem; }
.railway-card figcaption small { max-width: 650px; margin-top: .45rem; color: rgba(255,255,255,.62); font-size: .84rem; line-height: 1.45; }

.agriculture { position: relative; min-height: 980px; padding: 0; display: flex; align-items: stretch; overflow: hidden; color: var(--white); background: var(--green-950); }
.agriculture-background { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; filter: saturate(1.08) contrast(1.12) brightness(1.08); }
.agriculture-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(3,13,9,.72) 0%, rgba(3,13,9,.46) 54%, rgba(3,13,9,.10) 100%), linear-gradient(0deg, rgba(3,13,9,.54), transparent 58%); }
.agriculture-inner { position: relative; z-index: 2; width: 100%; max-width: var(--max); margin: auto; padding: 8rem 32px; }
.agriculture-heading { display: grid; grid-template-columns: .55fr 1.45fr; gap: 8vw; }
.editorial-number { display: block; margin-top: 2.5rem; color: rgba(255,255,255,.15); font-family: "Arial Narrow", Arial, sans-serif; font-size: clamp(5rem, 10vw, 9rem); font-weight: 700; line-height: .8; }
.agriculture-heading h2 { max-width: 850px; margin: 0; font-family: "Arial Narrow", "Segoe UI", Arial, sans-serif; font-size: clamp(3.1rem, 6vw, 6.2rem); font-weight: 600; line-height: .9; letter-spacing: -.055em; }
.agriculture-heading h2, .agriculture-heading > div:last-child > p { text-shadow: 0 2px 18px rgba(0,0,0,.72); }
.agriculture-heading > div:last-child > p { max-width: 680px; margin: 2rem 0 0; color: rgba(255,255,255,.66); font-size: 1.06rem; line-height: 1.7; }
.agriculture-heading .button { margin-top: 2rem; }
.agriculture-showcase { width: 82%; margin: 5rem 0 0 auto; display: grid; grid-template-columns: .8fr 1.2fr; border: 1px solid rgba(255,255,255,.18); background: rgba(6,23,17,.82); box-shadow: 0 2.5rem 7rem rgba(0,0,0,.3); backdrop-filter: blur(14px); }
.agriculture-showcase figure { position: relative; min-height: 390px; margin: 0; overflow: hidden; }
.agriculture-showcase figure::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(4,15,11,.72), transparent 50%); }
.agriculture-showcase figure img { width: 100%; height: 100%; object-fit: cover; }
.agriculture-showcase figcaption { position: absolute; z-index: 2; left: 1.2rem; bottom: 1.2rem; color: rgba(255,255,255,.78); font-size: .76rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.agriculture-details { padding: 3rem; }
.agriculture-lead { max-width: 520px; margin: 0 0 2rem; font-family: "Arial Narrow", Arial, sans-serif; font-size: 1.7rem; line-height: 1.25; }
.agriculture-points { margin: 0 0 2rem; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.18); }
.agriculture-points li { padding: 1rem 0; display: grid; grid-template-columns: .62fr 1fr; gap: 1rem; border-bottom: 1px solid rgba(255,255,255,.18); }
.agriculture-points strong { color: var(--copper-light); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; }
.agriculture-points span { color: rgba(255,255,255,.68); font-size: .92rem; line-height: 1.45; }
.agriculture-details dl { margin: 0 0 2rem; border-top: 1px solid rgba(255,255,255,.18); }
.agriculture-details dl div { padding: .9rem 0; display: grid; grid-template-columns: .55fr 1fr; gap: 1rem; border-bottom: 1px solid rgba(255,255,255,.18); }
.agriculture-details dt { color: rgba(255,255,255,.45); font-size: .73rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.agriculture-details dd { margin: 0; color: var(--copper-light); font-size: .94rem; font-weight: 750; }
.button-gold { color: var(--green-950); background: var(--copper-light); }
.button-gold:hover { background: #ffd77e; }

.rural-structures { padding: 8rem max(24px, calc((100vw - var(--max)) / 2 + 32px)); background: var(--paper); }
.rural-heading { max-width: var(--max); margin: 0 auto 4rem; display: grid; grid-template-columns: 1.15fr .85fr; gap: 8vw; align-items: end; }
.rural-heading h2 { max-width: 850px; margin: 0; color: var(--green-900); font-family: "Arial Narrow", "Segoe UI", Arial, sans-serif; font-size: clamp(3rem, 5.7vw, 5.8rem); font-weight: 600; line-height: .92; letter-spacing: -.055em; }
.rural-heading > p { margin: 0; color: var(--muted); font-size: 1.02rem; line-height: 1.7; }
.rural-gallery { max-width: var(--max); margin: auto; display: grid; grid-template-columns: 1.2fr .8fr; gap: 1.4rem; }
.rural-card { position: relative; min-height: 420px; margin: 0; overflow: hidden; background: var(--green-900); }
.rural-card-wide { grid-column: 1 / -1; min-height: 560px; }
.rural-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease; }
.rural-card:hover img { transform: scale(1.02); }
.rural-card::after { content: ""; position: absolute; inset: 38% 0 0; background: linear-gradient(transparent, rgba(3,13,9,.92)); }
.rural-card figcaption { position: absolute; z-index: 2; inset: auto 0 0; padding: 5rem 1.6rem 1.5rem; display: grid; color: var(--white); }
.rural-card figcaption span { margin-bottom: .5rem; color: var(--copper-light); font-size: .72rem; font-weight: 850; letter-spacing: .11em; text-transform: uppercase; }
.rural-card figcaption strong { font-family: "Arial Narrow", Arial, sans-serif; font-size: 1.7rem; }
.rural-card figcaption small { max-width: 650px; margin-top: .45rem; color: rgba(255,255,255,.65); font-size: .84rem; line-height: 1.45; }
.rural-action { max-width: var(--max); margin: 1.4rem auto 0; padding: 1.5rem 1.7rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; border: 1px solid var(--line); background: var(--paper-dark); }
.rural-action p { margin: 0; color: var(--muted); font-weight: 700; }

.operations { padding: 8rem max(24px, calc((100vw - var(--max)) / 2 + 32px)); color: var(--white); background: #0a1b15; }
.operations-heading { max-width: 820px; margin-bottom: 4rem; }
.operations-heading h2 { margin: 0; font-family: "Arial Narrow", "Segoe UI", Arial, sans-serif; font-size: clamp(3rem, 5.5vw, 5.6rem); font-weight: 600; line-height: .94; letter-spacing: -.055em; }
.operations-heading > p:last-child { max-width: 620px; margin: 1.7rem 0 0; color: rgba(255,255,255,.62); font-size: 1.05rem; line-height: 1.65; }
.operations-gallery { max-width: var(--max); margin: auto; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.operations-gallery figure { position: relative; min-height: 430px; margin: 0; overflow: hidden; border: 1px solid rgba(255,255,255,.14); background: var(--green-800); }
.operations-gallery .gallery-wide, .operations-gallery .gallery-tall { grid-column: auto; grid-row: auto; }
.operations-gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.operations-gallery figure:hover img { transform: scale(1.025); }
.operations-gallery figcaption { position: absolute; inset: auto 0 0; padding: 4.5rem 1.4rem 1.3rem; display: grid; grid-template-columns: 34px 1fr; color: var(--white); background: linear-gradient(transparent, rgba(5,17,12,.9)); }
.operations-gallery figcaption span { grid-row: 1 / 3; color: var(--copper-light); font-size: .78rem; font-weight: 800; }
.operations-gallery figcaption strong { font-size: 1rem; }
.operations-gallery figcaption small { margin-top: .3rem; color: rgba(255,255,255,.6); font-size: .78rem; }

.process { display: grid; grid-template-columns: 1fr 1fr; min-height: 920px; color: var(--white); background: var(--green-900); }
.process-photo { position: relative; min-height: 680px; overflow: hidden; }
.process-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(7,23,18,.42), transparent 45%); }
.process-photo img { width: 100%; height: 100%; object-fit: cover; }
.process-photo > span, .image-note { position: absolute; z-index: 2; left: 1.5rem; bottom: 1.5rem; padding: .55rem .7rem; color: rgba(255,255,255,.75); background: rgba(7,23,18,.72); font-size: .75rem; }
.process-copy { padding: clamp(4rem, 8vw, 8rem); }
.process-copy h2 { max-width: 700px; }
.process-copy > p:not(.kicker) { max-width: 700px; margin: 2rem 0; color: rgba(255,255,255,.67); font-size: 1.05rem; line-height: 1.7; }
.process-steps { margin: 3rem 0 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.18); }
.process-steps li { padding: 1.3rem 0; display: grid; grid-template-columns: 52px 1fr; gap: 1rem; border-bottom: 1px solid rgba(255,255,255,.18); }
.process-steps li > span { color: var(--copper-light); font-size: .8rem; font-weight: 800; }
.process-steps strong { font-size: 1rem; }
.process-steps p { margin: .45rem 0 0; color: rgba(255,255,255,.55); font-size: .92rem; line-height: 1.55; }

.technical { max-width: 1400px; }
.spec-tabs { display: flex; border-bottom: 1px solid var(--line); overflow-x: auto; scrollbar-width: thin; }
.spec-tabs button { min-width: 150px; min-height: 60px; padding: 0 1.5rem; border: 0; border-right: 1px solid var(--line); color: var(--muted); background: transparent; font: inherit; font-size: .9rem; font-weight: 800; cursor: pointer; }
.spec-tabs button.active { color: var(--white); background: var(--green-800); }
.spec-panel { display: grid; grid-template-columns: .42fr 1fr; min-height: 470px; color: var(--white); background: var(--green-800); }
.spec-panel[hidden] { display: none; }
.spec-title { padding: 3rem; background: var(--green-950); }
.spec-title > span { color: var(--copper); font-size: .85rem; font-weight: 800; }
.spec-title h3 { margin: 4rem 0 1rem; font-family: "Arial Narrow", Arial, sans-serif; font-size: clamp(2.5rem, 4.5vw, 4.4rem); font-weight: 600; line-height: .95; letter-spacing: -.05em; }
.spec-title p { color: rgba(255,255,255,.55); line-height: 1.6; }
.spec-panel dl { margin: 0; display: grid; grid-template-columns: 1fr 1fr; }
.spec-panel dl div { min-height: 150px; padding: 2rem; border-right: 1px solid rgba(255,255,255,.15); border-bottom: 1px solid rgba(255,255,255,.15); }
.spec-panel dt { color: var(--copper-light); font-size: .78rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.spec-panel dd { margin: 1.2rem 0 0; color: rgba(255,255,255,.86); font-family: "Arial Narrow", Arial, sans-serif; font-size: 1.5rem; line-height: 1.35; }
.standards-note { padding: 2rem; display: grid; grid-template-columns: 1fr .7fr; gap: 5rem; border: 1px solid var(--line); border-top: 0; background: var(--paper-dark); }
.standards-note span { display: block; margin-bottom: .55rem; color: var(--copper); font-size: .78rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.standards-note strong { font-size: 1.05rem; }
.standards-note p { margin: 0; color: var(--muted); font-size: .9rem; line-height: 1.55; }

.capacity { position: relative; min-height: 820px; padding: 7rem max(24px, calc((100vw - var(--max)) / 2 + 32px)); display: flex; align-items: center; overflow: hidden; color: var(--white); background: var(--green-950); }
.capacity > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.capacity-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7,23,18,.08) 0%, rgba(7,23,18,.16) 48%, rgba(7,23,18,.92) 70%, rgba(7,23,18,.98) 100%); }
.capacity-copy { position: relative; z-index: 2; width: min(680px, 52%); margin-left: auto; padding: 2.5rem; background: rgba(7,23,18,.74); box-shadow: 0 2rem 5rem rgba(0,0,0,.28); backdrop-filter: blur(8px); }
.capacity-metrics { margin: 3rem 0 0; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.22); border-left: 1px solid rgba(255,255,255,.22); }
.capacity-metrics div { min-height: 140px; padding: 1.4rem; border-right: 1px solid rgba(255,255,255,.22); border-bottom: 1px solid rgba(255,255,255,.22); }
.capacity-metrics strong { display: block; font-family: "Arial Narrow", Arial, sans-serif; font-size: 2.5rem; letter-spacing: -.04em; }
.capacity-metrics span { color: rgba(255,255,255,.55); font-size: .8rem; text-transform: uppercase; }
.capacity-note { max-width: 600px; margin: 1.2rem 0 2rem; color: rgba(255,255,255,.48); font-size: .82rem; line-height: 1.5; }
.capacity .image-note { left: auto; right: 1.5rem; }

.company { display: grid; grid-template-columns: .8fr 1.2fr; gap: 9vw; }
.company-title { min-width: 0; }
.company-title h2 { margin: 1.3rem 0 0; color: var(--green-900); font-family: "Arial Narrow", Arial, sans-serif; font-size: clamp(3.8rem, 8vw, 7.5rem); font-weight: 650; line-height: .88; letter-spacing: -.06em; }
.company-history-photo { position: relative; min-height: 310px; margin: 3rem 0 0; overflow: hidden; background: var(--green-900); }
.company-history-photo img { width: 100%; height: 100%; min-height: 310px; object-fit: cover; }
.company-history-photo figcaption { position: absolute; left: 1rem; bottom: 1rem; padding: .55rem .7rem; color: rgba(255,255,255,.82); background: rgba(7,23,18,.78); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; }
.company-copy > p { margin: 0 0 1.4rem; color: var(--muted); font-size: 1.04rem; line-height: 1.7; }
.company-copy .company-lead { color: var(--ink); font-family: "Arial Narrow", Arial, sans-serif; font-size: 1.9rem; line-height: 1.35; }
.partner-block { margin-top: 3rem; padding: 2rem; border-left: 5px solid var(--copper); background: var(--paper-dark); }
.partner-block span { color: var(--muted); font-size: .76rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.partner-block strong { display: block; margin: .8rem 0; font-family: "Arial Narrow", Arial, sans-serif; font-size: 1.6rem; }
.partner-block p { margin: 0; color: var(--muted); line-height: 1.55; }

.faq { padding: 8rem max(24px, calc((100vw - var(--max)) / 2 + 32px)); display: grid; grid-template-columns: .75fr 1.25fr; gap: 8vw; color: var(--white); background: var(--green-800); }
.faq-list { border-top: 1px solid rgba(255,255,255,.18); }
.faq details { border-bottom: 1px solid rgba(255,255,255,.18); }
.faq summary { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; cursor: pointer; list-style: none; font-family: "Arial Narrow", Arial, sans-serif; font-size: 1.25rem; font-weight: 650; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary span { color: var(--copper-light); font-size: 1.6rem; transition: transform .2s; }
.faq details[open] summary span { transform: rotate(45deg); }
.faq details p { margin: 0 3rem 1.5rem 0; color: rgba(255,255,255,.62); line-height: 1.65; }

.contact { position: relative; padding: 8rem max(24px, calc((100vw - var(--max)) / 2 + 32px)); display: grid; grid-template-columns: 1.15fr .65fr; align-items: end; gap: 9vw; overflow: hidden; color: var(--white); background: var(--green-950); }
.contact-main, .contact-details { position: relative; z-index: 2; }
.contact-main > p:not(.kicker) { max-width: 650px; margin: 2rem 0; color: rgba(255,255,255,.58); font-size: 1.05rem; line-height: 1.65; }
.contact-details { border-top: 1px solid rgba(255,255,255,.18); }
.contact-details > div { padding: 1.4rem 0; border-bottom: 1px solid rgba(255,255,255,.18); }
.contact-details span { display: block; margin-bottom: .5rem; color: var(--copper-light); font-size: .76rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.contact-details a, .contact-details p { margin: 0; color: rgba(255,255,255,.85); text-decoration: none; font-family: "Arial Narrow", Arial, sans-serif; font-size: 1.12rem; line-height: 1.45; overflow-wrap: anywhere; }

footer { min-height: 96px; padding: 1.8rem max(24px, calc((100vw - var(--max)) / 2 + 32px)); display: flex; align-items: center; justify-content: space-between; gap: 2rem; color: var(--white); background: #030b08; border-top: 1px solid rgba(255,255,255,.08); }
footer p, footer > a:last-child { color: rgba(255,255,255,.42); font-size: .8rem; text-decoration: none; }
.footer-brand .brand-acs { font-size: 2.25rem; }
.floating-whatsapp { position: fixed; z-index: 60; right: 1.5rem; bottom: 1.4rem; min-height: 60px; padding: .55rem 1.15rem .55rem .55rem; display: flex; align-items: center; gap: .78rem; border: 1px solid rgba(255,255,255,.52); border-radius: 2.2rem; color: #063b23; background: #25d366; box-shadow: 0 1rem 2.8rem rgba(0,0,0,.3); text-decoration: none; font-size: .84rem; font-weight: 900; transition: transform .2s ease, box-shadow .2s ease; }
.floating-whatsapp:hover { transform: translateY(-3px); box-shadow: 0 1.3rem 3.2rem rgba(0,0,0,.36); }
.floating-whatsapp > span { width: 2.7rem; height: 2.7rem; display: grid; place-items: center; border-radius: 50%; color: #19a956; background: white; }
.floating-whatsapp svg { width: 1.65rem; height: 1.65rem; }
.floating-whatsapp b { display: flex; flex-direction: column; line-height: 1.15; }
.floating-whatsapp small { margin-bottom: .2rem; font-size: .62rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; opacity: .72; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

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

@media (max-width: 980px) {
  .topline { padding: 0 22px; }
  .topline div span:last-child { display: none; }
  .site-header { height: 82px; padding: 0 22px; }
  .site-header.is-scrolled { top: 0; height: 72px; }
  .brand-logo { width: 150px; height: 58px; }
  .brand-acs { font-size: 2.45rem; }
  .menu-toggle { position: relative; z-index: 3; width: 46px; height: 46px; padding: 12px; display: flex; flex-direction: column; justify-content: center; gap: 6px; border: 1px solid rgba(255,255,255,.3); color: white; background: rgba(0,0,0,.15); }
  .menu-toggle span { width: 100%; height: 1px; background: currentColor; transition: .2s; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .main-nav { position: fixed; inset: 0; padding: 130px 26px 40px; display: flex; flex-direction: column; align-items: stretch; gap: 0; visibility: hidden; opacity: 0; transform: translateY(-12px); background: var(--green-950); transition: .25s; }
  .main-nav.open { visibility: visible; opacity: 1; transform: none; }
  .main-nav a { padding: 1.2rem 0; border-bottom: 1px solid rgba(255,255,255,.15); font-family: "Arial Narrow", Arial, sans-serif; font-size: 1.7rem; }
  .main-nav .nav-cta { margin-top: 1.4rem; padding: 1.1rem; text-align: center; font-family: inherit; font-size: .9rem; }
  .hero { height: auto; min-height: 850px; padding: 165px 24px 35px; }
  .hero-artwork { height: min(970px, 100vh); min-height: 790px; padding: 124px 0 0; }
  .hero-rail { left: 24px; top: 155px; }
  .hero-content { padding-left: 1.5rem; }
  .hero-bottom { grid-template-columns: repeat(3, 1fr); padding-left: 1.5rem; gap: 1rem; }
  .hero-bottom small { display: none; }
  .section, .technical { padding: 6rem 24px; }
  .section-heading { grid-template-columns: 1fr; gap: 1.7rem; }
  .product-cards { grid-template-columns: 1fr; }
  .product-card { min-height: 340px; }
  .railway-portfolio { padding: 6rem 24px; }
  .railway-heading { grid-template-columns: 1fr; gap: 1.7rem; }
  .agriculture { min-height: 930px; }
  .agriculture-inner { padding: 6rem 24px; }
  .agriculture-heading { grid-template-columns: .4fr 1.6fr; gap: 4vw; }
  .agriculture-showcase { width: 92%; }
  .rural-structures { padding: 6rem 24px; }
  .rural-heading { grid-template-columns: 1fr; gap: 1.7rem; }
  .feature-copy { width: 70%; }
  .feature-photo { left: 56%; opacity: .68; }
  .operations { padding: 6rem 24px; }
  .process { grid-template-columns: 1fr; }
  .process-photo { min-height: 560px; }
  .process-copy { padding: 5rem 24px; }
  .spec-panel { grid-template-columns: 1fr; }
  .spec-title { min-height: 300px; }
  .spec-title h3 { margin-top: 2.5rem; }
  .standards-note { grid-template-columns: 1fr; gap: 1rem; }
  .capacity { min-height: 760px; padding: 6rem 24px; }
  .capacity-overlay { background: linear-gradient(0deg, rgba(7,23,18,.98) 0%, rgba(7,23,18,.78) 54%, rgba(7,23,18,.08) 100%); }
  .capacity-copy { width: 100%; margin-top: auto; padding: 2rem; }
  .company { grid-template-columns: 1fr; gap: 4rem; }
  .faq { grid-template-columns: 1fr; padding: 6rem 24px; }
  .contact { grid-template-columns: 1fr; padding: 6rem 24px; gap: 4rem; }
}

@media (max-width: 650px) {
  .topline { min-height: 38px; }
  .topline > div { display: none; }
  .topline strong { margin: auto; font-size: .65rem; }
  .site-header { inset: 38px 0 auto; }
  .brand-logo { width: 136px; height: 52px; }
  .brand-name { font-size: .65rem; }
  .hero { min-height: 820px; padding-top: 145px; }
  .hero-image { object-position: 62% center; }
  .hero-artwork { min-height: 0; height: auto; padding: 132px 0 0; }
  .hero-artwork-image { width: 100%; height: auto; }
  .hero-artwork-cta { right: 16px; bottom: 16px; min-height: 50px; max-width: calc(100% - 32px); font-size: .76rem; }
  .hero-company { height: 620px; min-height: 620px; }
  .hero-company-image { object-fit: contain; object-position: center; }
  .hero-company-title { left: 24px; top: 28%; font-size: 4.2rem; }
  .hero h1 { font-size: 2.6rem; }
  .hero-actions { flex-direction: column; }
  .hero .button { width: 100%; }
  .hero-bottom { grid-template-columns: 1fr 1fr; }
  .hero-bottom > div:nth-child(3) { display: none; }
  .hero-bottom strong { font-size: 1.85rem; }
  .manifesto-copy { padding: 4.5rem 24px; }
  .application-list { grid-template-columns: 1fr; }
  .proof-strip { justify-content: flex-start; padding: 0 24px; }
  .proof-strip span:nth-of-type(n+4), .proof-strip i:nth-of-type(n+3) { display: none; }
  .operations-gallery { grid-template-columns: 1fr; gap: 1.2rem; }
  .operations-gallery figure { min-height: 390px; }
  .section { padding: 5rem 20px; }
  .product-feature { min-height: 650px; padding: 3rem 24px; }
  .feature-copy { width: 100%; }
  .feature-specs { grid-template-columns: 1fr; }
  .feature-specs div { padding: .9rem 1rem; }
  .feature-photo { inset: 0; opacity: .28; }
  .feature-photo::after { background: linear-gradient(0deg, var(--green-950), rgba(7,23,18,.25)); }
  .operations { padding: 5rem 20px; }
  .operations-gallery { grid-template-columns: 1fr; grid-template-rows: repeat(4, 390px); }
  .operations-gallery .gallery-wide, .operations-gallery .gallery-tall { grid-column: auto; grid-row: auto; }
  .product-card { padding: 1.8rem 1.4rem; }
  .railway-portfolio { padding: 5rem 20px; }
  .railway-heading { margin-bottom: 2.5rem; }
  .railway-heading h2 { font-size: 3rem; }
  .railway-grid { grid-template-columns: 1fr; }
  .railway-card, .railway-card-wide { grid-column: auto; min-height: 340px; }
  .railway-card-wide img { object-position: 76% center; }
  .agriculture { min-height: auto; }
  .agriculture-background { object-position: 58% center; }
  .agriculture-shade { background: linear-gradient(0deg, rgba(3,13,9,.82) 0%, rgba(3,13,9,.60) 68%, rgba(3,13,9,.22) 100%); }
  .agriculture-inner { padding: 5rem 20px; }
  .agriculture-heading { grid-template-columns: 1fr; gap: 1.8rem; }
  .editorial-number { display: none; }
  .agriculture-heading h2 { font-size: 3rem; }
  .agriculture-showcase { width: 100%; margin-top: 3rem; grid-template-columns: 1fr; }
  .agriculture-showcase figure { min-height: 310px; }
  .agriculture-details { padding: 2rem 1.4rem; }
  .agriculture-lead { font-size: 1.45rem; }
  .agriculture-points li { grid-template-columns: 1fr; gap: .35rem; }
  .agriculture-details dl div { grid-template-columns: 1fr; gap: .35rem; }
  .rural-structures { padding: 5rem 20px; }
  .rural-heading { margin-bottom: 2.5rem; }
  .rural-heading h2 { font-size: 3rem; }
  .rural-gallery { grid-template-columns: 1fr; }
  .rural-card, .rural-card-wide { grid-column: auto; min-height: 340px; }
  .rural-action { padding: 1.4rem; flex-direction: column; align-items: stretch; }
  .rural-action .button { width: 100%; text-align: center; }
  .process-photo { min-height: 380px; }
  .process-copy { padding: 4.5rem 20px; }
  .spec-tabs button { min-width: 130px; }
  .spec-title { padding: 2rem 1.4rem; }
  .spec-panel dl { grid-template-columns: 1fr; }
  .spec-panel dl div { min-height: 125px; padding: 1.5rem; }
  .spec-panel dd { font-size: 1.3rem; }
  .capacity { min-height: 850px; align-items: flex-end; }
  .capacity-overlay { background: linear-gradient(0deg, rgba(7,23,18,.98) 0%, rgba(7,23,18,.82) 63%, rgba(7,23,18,.25) 100%); }
  .capacity-metrics { grid-template-columns: 1fr 1fr; }
  .capacity-metrics div:nth-child(3) { grid-column: 1 / -1; }
  .capacity .image-note { top: 1rem; right: 1rem; bottom: auto; }
  .company-acs { font-size: 8rem; }
  .faq summary { font-size: 1.1rem; }
  footer { align-items: flex-start; flex-direction: column; padding: 2.5rem 24px 6rem; }
  .floating-whatsapp b { display: none; }
  .floating-whatsapp { right: 1rem; bottom: 1rem; min-height: 0; padding: .42rem; }
}