@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600&family=Manrope:wght@400;500;600&display=swap");

:root {
  --ink: #0b171b;
  --ink-soft: #223237;
  --paper: #f2f6f7;
  --surface: #e7eef1;
  --surface-soft: #fafcfc;
  --white: #fff;
  --sand: #d5ad70;
  --sand-soft: #eadcc6;
  --mist: #d9e5e9;
  --line: #c5d2d6;
  --muted: #687478;
  --serif: "Iowan Old Style", "Baskerville", "Times New Roman", serif;
  --sans: "DM Sans", "Manrope", Arial, sans-serif;
  --radius: 3px;
  --shadow: 0 28px 80px rgba(14, 26, 30, 0.13);
  --container: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
img { display: block; width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { color: var(--ink); background: var(--sand); }

.container { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
.narrow { max-width: 920px; }
.section { padding: 132px 0; }
.skip-link { position: fixed; z-index: 200; top: 12px; left: 12px; padding: 10px 16px; color: var(--white); background: var(--ink); transform: translateY(-160%); transition: transform .2s; }
.skip-link:focus { transform: translateY(0); }
.icon { width: 20px; height: 20px; flex: 0 0 auto; }
.eyebrow { display: flex; align-items: center; gap: 12px; margin: 0 0 24px; color: #59676b; font-size: 11px; font-weight: 600; letter-spacing: .19em; line-height: 1.2; text-transform: uppercase; }
.eyebrow::before { width: 30px; height: 1px; background: var(--sand); content: ""; }
.eyebrow.light { color: #bac5c6; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: var(--serif); font-weight: 400; letter-spacing: -.025em; line-height: 1.02; }
h1 { font-size: clamp(40px, 4.8vw, 72px); }
h2 { font-size: clamp(32px, 3.4vw, 50px); }
h3 { line-height: 1.25; }
p { color: #536065; }

.site-header { position: fixed; z-index: 100; inset: 0 0 auto; border-bottom: 1px solid transparent; transition: background .3s, border-color .3s, box-shadow .3s; }
.site-header.scrolled { border-color: var(--line); background: rgba(242, 246, 247, .93); box-shadow: 0 10px 36px rgba(11, 23, 27, .05); backdrop-filter: blur(18px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 84px; }
.brand { display: inline-flex; align-items: center; line-height: 1; }
.brand-logo { width: auto; }
.brand-logo-full { height: 32px; }
.brand-logo-mobile { display: none; height: 40px; }
.main-nav { display: flex; align-items: center; gap: 28px; font-size: 13px; }
.main-nav > a:not(.button) { position: relative; padding: 10px 0; }
.main-nav > a:not(.button)::after { position: absolute; right: 0; bottom: 4px; left: 0; height: 1px; background: var(--sand); content: ""; transform: scaleX(0); transform-origin: right; transition: transform .25s; }
.main-nav > a:not(.button):hover::after { transform: scaleX(1); transform-origin: left; }
.main-nav .header-phone { display: inline-flex; align-items: center; gap: 8px; color: #35454a; font-size: 12px; font-weight: 600; letter-spacing: .02em; white-space: nowrap; }
.main-nav .header-phone .icon { width: 15px; height: 15px; color: #9e7340; }
.main-nav .language { padding-inline: 14px !important; border-left: 1px solid var(--line); font-size: 11px; font-weight: 600; letter-spacing: .14em; }
.header-mobile-actions { display: none; align-items: center; gap: 5px; }
.header-phone-mobile { display: inline-flex; align-items: center; gap: 7px; padding: 9px 8px; color: #35454a; font-size: 12px; font-weight: 600; white-space: nowrap; }
.header-phone-mobile .icon { width: 15px; height: 15px; color: #9e7340; }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 0; border: 0; background: none; }
.menu-toggle span { display: block; width: 24px; height: 1px; margin: 7px auto; background: var(--ink); transition: transform .25s; }

.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; gap: 26px; padding: 0 24px; border: 1px solid var(--ink); border-radius: var(--radius); font-size: 12px; font-weight: 600; letter-spacing: .04em; line-height: 1.2; transition: color .25s, background .25s, border-color .25s, transform .25s; }
.button:hover { transform: translateY(-2px); }
.button-small { min-height: 42px; padding-inline: 18px; gap: 12px; }
.button-primary { color: var(--white); background: var(--ink); }
.button-primary:hover { border-color: #1d3036; background: #1d3036; }
.button-ghost { color: var(--white); border-color: rgba(255,255,255,.35); }
.button-ghost:hover { color: var(--ink); border-color: var(--white); background: var(--white); }
.text-link { display: inline-flex; align-items: center; gap: 13px; padding-block: 8px; border-bottom: 1px solid var(--ink); font-size: 13px; font-weight: 600; }
.text-link .icon { width: 18px; transition: transform .2s; }
.text-link:hover .icon { transform: translateX(4px); }

.hero { padding: 144px 0 72px; overflow: hidden; }
.hero-grid { display: grid; min-height: 650px; align-items: center; grid-template-columns: .84fr 1.16fr; gap: clamp(48px, 7vw, 108px); }
.hero-copy { position: relative; z-index: 1; padding-left: clamp(0px, 3vw, 38px); }
.hero h1 { margin: 0 0 34px; }
.hero h1 .hero-accent { color: #9e7340; font-style: normal; font-weight: 400; }
.hero-lead { max-width: 570px; margin-bottom: 36px; font-size: 18px; line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; }
.hero-note { display: flex; max-width: 460px; align-items: flex-start; gap: 12px; margin-top: 44px; color: #6d777a; font-family: var(--serif); font-size: 16px; line-height: 1.45; }
.hero-note span { flex: 0 0 auto; width: 7px; height: 7px; margin-top: 8px; border: 1px solid var(--sand); transform: rotate(45deg); }
.hero-media { position: relative; min-width: 0; margin: 0; box-shadow: var(--shadow); }
.hero-media::before { position: absolute; z-index: -1; top: -28px; right: -28px; width: 58%; height: 62%; border: 1px solid var(--sand); content: ""; }
.hero-media img { aspect-ratio: 1.18 / 1; object-fit: cover; }
.hero-media figcaption { position: absolute; right: 0; bottom: 0; display: flex; min-width: 245px; align-items: center; gap: 18px; padding: 16px 22px; color: var(--white); background: rgba(11,23,27,.84); backdrop-filter: blur(10px); }
.hero-media figcaption b { color: var(--sand); font-weight: 500; }
.hero-media figcaption span { font-family: var(--serif); font-size: 15px; }

.trust-strip { border-block: 1px solid var(--line); background: rgba(255,255,255,.24); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-grid > div { display: flex; min-height: 116px; align-items: center; gap: 15px; padding: 20px 32px; border-right: 1px solid var(--line); }
.trust-grid > div:last-child { border-right: 0; }
.trust-grid b { color: #9e7340; font-family: var(--serif); font-size: 30px; font-weight: 400; }
.trust-grid span { color: #59666a; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }

.section-heading { display: grid; align-items: end; grid-template-columns: 1.5fr .7fr; gap: 80px; margin-bottom: 68px; }
.section-heading h2 { max-width: 850px; margin-bottom: 0; }
.section-heading > p { max-width: 440px; margin-bottom: 5px; }
.featured-solutions { display: grid; gap: 1px; padding: 1px; background: var(--line); grid-template-columns: repeat(4, 1fr); }
.solution-card { position: relative; display: flex; min-height: 430px; flex-direction: column; justify-content: space-between; padding: 28px 26px 25px; color: var(--white); overflow: hidden; isolation: isolate; }
.solution-card img { position: absolute; z-index: -2; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2,.75,.25,1), filter .4s; }
.solution-card::before { position: absolute; z-index: -1; inset: 0; background: linear-gradient(180deg, rgba(7,17,20,.18), rgba(7,17,20,.2) 35%, rgba(7,17,20,.9)); content: ""; transition: background .35s; }
.solution-card > * { position: relative; z-index: 1; }
.solution-card:hover img { transform: scale(1.045); }
.solution-card:hover::before { background: linear-gradient(180deg, rgba(7,17,20,.08), rgba(7,17,20,.14) 35%, rgba(7,17,20,.82)); }
.solution-number { color: #f2cf9d; font-family: var(--serif); font-size: 17px; }
.solution-card h3 { max-width: 260px; margin-bottom: 12px; font-family: var(--serif); font-size: clamp(20px, 1.7vw, 24px); font-weight: 400; line-height: 1.08; }
.solution-card p { max-width: 280px; margin: 0; color: #dce3e3; font-size: 14px; transition: color .35s; }
.solution-card:hover p { color: var(--white); }
.solution-card > .icon { align-self: flex-end; }
.all-solutions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.all-solutions > * { padding: 10px 16px; border: 1px solid var(--line); border-radius: 100px; color: #5f6b6e; font-size: 12px; transition: border-color .2s, color .2s; }
.all-solutions a:hover { color: var(--ink); border-color: var(--sand); }

.capabilities { background: var(--surface); }
.capability-grid { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
.capability-card { min-width: 0; border: 1px solid rgba(11,23,27,.11); background: rgba(255,255,255,.46); overflow: hidden; }
.capability-card figure { margin: 0; overflow: hidden; }
.capability-card img { aspect-ratio: 1.18 / 1; object-fit: cover; transition: transform .7s cubic-bezier(.2,.75,.25,1); }
.capability-card:hover img { transform: scale(1.025); }
.capability-card-copy { padding: 28px 30px 32px; }
.capability-card-copy > span { color: #8d6738; font-size: 10px; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; }
.capability-card-copy h3 { max-width: 310px; margin: 10px 0 10px; font-family: var(--serif); font-size: clamp(21px, 1.8vw, 27px); font-weight: 400; }
.capability-card-copy p { max-width: 335px; margin: 0; color: #5f6b6e; font-size: 13px; }

.visual-guides { padding-top: 82px; background: var(--paper); }
.visual-guide-grid { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
.visual-guide-card { position: relative; margin: 0; border: 1px solid var(--line); background: #fff; overflow: hidden; }
.visual-guide-card img { aspect-ratio: 1.12 / 1; object-fit: cover; object-position: top; transition: transform .55s cubic-bezier(.2,.75,.25,1), filter .35s; }
.visual-guide-card:hover img { transform: scale(1.018); }
.visual-guide-comparison { display: grid; aspect-ratio: 1.12 / 1; gap: 2px; background: var(--line); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.visual-guide-comparison > div { position: relative; min-width: 0; overflow: hidden; }
.visual-guide-card .visual-guide-comparison img { height: 100%; aspect-ratio: auto; object-fit: cover; object-position: center top; }
.visual-guide-comparison em { position: absolute; z-index: 1; top: 12px; left: 12px; padding: 5px 8px; color: var(--white); background: rgba(11,23,27,.78); font-size: 9px; font-style: normal; font-weight: 600; letter-spacing: .14em; line-height: 1; text-transform: uppercase; }
.visual-guide-card figcaption { display: grid; min-height: 78px; align-items: center; padding: 18px 20px; grid-template-columns: auto 1fr auto; gap: 16px; }
.visual-guide-card figcaption span { color: #9e7340; font-family: var(--serif); }
.visual-guide-card figcaption b { font-family: var(--serif); font-size: 17px; font-weight: 400; }
.visual-guide-card figcaption i { color: #9e7340; font-size: 18px; font-style: normal; }

.image-story { padding: 0 0 132px; }
.image-story-grid { display: grid; align-items: center; grid-template-columns: 1.18fr .82fr; gap: clamp(54px, 8vw, 125px); }
.image-story figure { margin: 0; }
.image-story img { aspect-ratio: 1.25 / 1; object-fit: cover; box-shadow: var(--shadow); }
.story-copy h2 { margin-bottom: 32px; font-size: clamp(30px, 3.1vw, 48px); }
.story-copy p { max-width: 480px; margin-bottom: 26px; font-size: 17px; }

.dark { color: var(--white); background: var(--ink); }
.technology { position: relative; overflow: hidden; }
.technology::after { position: absolute; right: -16vw; bottom: -38vw; width: 65vw; height: 65vw; border: 1px solid rgba(213,173,112,.13); border-radius: 50%; content: ""; }
.technology-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(80px, 10vw, 160px); }
.technology-copy { position: sticky; top: 130px; align-self: start; }
.technology-copy h2 { margin-bottom: 30px; }
.technology-copy p { max-width: 545px; margin-bottom: 34px; color: #aeb9bb; font-size: 17px; }
.technology-points { display: grid; border-top: 1px solid rgba(255,255,255,.16); grid-template-columns: repeat(2, 1fr); }
.technology-points > div { min-height: 245px; padding: 30px; border-right: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16); }
.technology-points > div:nth-child(even) { border-right: 0; }
.technology-points b { color: var(--sand); font-family: var(--serif); font-weight: 400; }
.technology-points h3 { margin: 42px 0 12px; font-family: var(--serif); font-size: 20px; font-weight: 400; }
.technology-points p { color: #98a5a8; font-size: 14px; }

.professional-gateway { position: relative; padding: 98px 0; color: var(--ink); background: var(--mist); overflow: hidden; }
.professional-gateway::after { position: absolute; right: -90px; bottom: -190px; width: 430px; height: 430px; border: 1px solid rgba(11,23,27,.16); border-radius: 50%; content: ""; }
.professional-gateway-grid { position: relative; z-index: 1; display: grid; align-items: end; grid-template-columns: 1.15fr .85fr; gap: clamp(65px, 9vw, 135px); }
.professional-gateway-copy h2 { max-width: 720px; margin-bottom: 26px; font-size: clamp(32px, 3.3vw, 50px); }
.professional-gateway-copy > p:not(.eyebrow) { max-width: 690px; margin-bottom: 34px; color: #344247; font-size: 16px; }
.professional-gateway .eyebrow { color: #344247; }
.professional-gateway .eyebrow::before { background: var(--ink); }
.professional-gateway-button { background: rgba(255,255,255,.18); }
.professional-gateway-button:hover { color: var(--white); background: var(--ink); }
.professional-gateway-button span { font-size: 18px; font-weight: 400; }
.professional-roles { display: grid; border-top: 1px solid rgba(11,23,27,.3); border-left: 1px solid rgba(11,23,27,.3); grid-template-columns: repeat(2, 1fr); }
.professional-roles span { display: flex; min-height: 112px; flex-direction: column; justify-content: space-between; gap: 18px; padding: 21px 23px; border-right: 1px solid rgba(11,23,27,.3); border-bottom: 1px solid rgba(11,23,27,.3); font-size: 12px; font-weight: 600; letter-spacing: .07em; line-height: 1.35; text-transform: uppercase; }
.professional-roles b { color: #77552c; font-family: var(--serif); font-size: 18px; font-weight: 400; }

.investment { background: var(--surface); }
.investment-grid { display: grid; align-items: start; grid-template-columns: .9fr 1.1fr; gap: clamp(70px, 9vw, 135px); }
.investment-copy h2 { margin-bottom: 30px; }
.investment-copy > p:not(.eyebrow) { max-width: 560px; margin-bottom: 34px; font-size: 17px; }
.investment-factors { border-top: 1px solid var(--line); }
.investment-factors article { display: grid; min-height: 142px; align-items: center; padding: 25px 8px; border-bottom: 1px solid var(--line); grid-template-columns: 64px 1fr; gap: 20px; }
.investment-factors article > b { align-self: start; padding-top: 4px; color: #9e7340; font-family: var(--serif); font-weight: 400; }
.investment-factors h3 { margin: 0 0 8px; font-family: var(--serif); font-size: 20px; font-weight: 400; }
.investment-factors p { max-width: 450px; margin: 0; font-size: 13px; }

.technical-cta { padding: 105px 0; color: var(--white); background: #102126; }
.technical-cta-grid { display: grid; align-items: end; grid-template-columns: 1.15fr .85fr; gap: clamp(60px, 9vw, 135px); }
.technical-cta h2 { max-width: 780px; margin: 0; }
.technical-cta-grid > div:last-child > p { max-width: 520px; margin-bottom: 28px; color: #aeb9bb; }

/* Editorial image language: project photography is monochrome until the
   pointer reaches it, then the untouched original colour is revealed. */
body main img:not([data-keep-color]) { filter: grayscale(1) contrast(1.04); transition: filter .48s ease, transform .6s cubic-bezier(.2,.75,.25,1); }
body main figure:hover img:not([data-keep-color]),
body main a:hover > img:not([data-keep-color]),
body main a:focus-visible > img:not([data-keep-color]) { filter: none; }

.engineering { position: relative; background: var(--surface-soft); overflow: hidden; }
.engineering::before { position: absolute; top: 160px; left: -110px; width: 340px; height: 340px; border: 1px solid rgba(158,115,64,.18); border-radius: 50%; content: ""; }
.engineering-heading { position: relative; display: grid; align-items: end; grid-template-columns: 1.35fr .65fr; gap: 90px; margin-bottom: 74px; }
.engineering-heading h2 { max-width: 900px; margin: 0; }
.engineering-heading > p { max-width: 470px; margin-bottom: 6px; font-size: 17px; }
.engineering-core { display: grid; gap: 1px; padding: 1px; background: var(--line); grid-template-columns: 1.15fr .85fr; }
.engineering-core.engineering-core-single { grid-template-columns: 1fr; }
.calculation-card { min-width: 0; padding: clamp(34px, 5vw, 68px); }
.calculation-card h3 { margin: 30px 0 12px; font-family: var(--serif); font-size: 23px; font-weight: 400; }
.calculation-card > p { max-width: 560px; margin: 0; font-size: 14px; }
.calculation-card { color: var(--white); background: #102126; }
.engineering-core-single .calculation-card { display: grid; align-items: start; grid-template-columns: minmax(230px, .8fr) minmax(380px, 1.2fr); gap: clamp(48px, 8vw, 120px); }
.engineering-core-single .calculation-intro, .engineering-core-single .calculation-data { min-width: 0; }
.calculation-card .eyebrow { color: #9babad; }
.calculation-card h3 { margin-top: 0; font-size: clamp(25px, 2.6vw, 36px); }
.comparison-row { display: grid; gap: 30px; margin: 52px 0 34px; }
.engineering-core-single .comparison-row { margin-top: 0; }
.comparison-row > div { display: grid; align-items: center; grid-template-columns: 1fr auto; gap: 9px 20px; }
.comparison-row span { color: #9fadaf; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.comparison-row b { font-family: var(--serif); font-size: 24px; font-weight: 400; }
.comparison-row i { position: relative; height: 6px; grid-column: 1 / -1; background: rgba(255,255,255,.1); overflow: hidden; }
.comparison-row i::after { position: absolute; inset: 0 auto 0 0; width: var(--bar); background: var(--sand); content: ""; }
.calculation-result { display: flex; align-items: flex-end; gap: 18px; padding: 28px 0; border-block: 1px solid rgba(255,255,255,.14); }
.calculation-result strong { color: var(--sand); font-family: var(--serif); font-size: 42px; font-weight: 400; line-height: .9; }
.calculation-result span { max-width: 170px; color: #b8c2c3; font-size: 12px; line-height: 1.35; }
.calculation-card .technical-note { margin-top: 25px; color: #849397; font-size: 11px; }
.engineering-metrics { display: grid; margin-top: 18px; grid-template-columns: repeat(3, 1fr); }
.engineering-metrics article { position: relative; min-height: 265px; padding: 34px; border: 1px solid var(--line); border-right: 0; background: rgba(255,255,255,.46); }
.engineering-metrics article:last-child { border-right: 1px solid var(--line); }
.engineering-metrics span { display: block; color: #9e7340; font-family: var(--serif); font-size: 38px; }
.engineering-metrics h3 { margin: 42px 0 12px; font-family: var(--serif); font-size: 20px; font-weight: 400; }
.engineering-metrics p { margin: 0; font-size: 13px; }
.certification-layout { display: grid; margin-top: 92px; color: var(--white); background: var(--ink); grid-template-columns: .8fr 1.2fr; }
.certification-intro { position: relative; padding: clamp(46px, 6vw, 82px); overflow: hidden; }
.certification-intro::after { position: absolute; right: -90px; bottom: -140px; width: 330px; height: 330px; border: 1px solid rgba(213,173,112,.18); border-radius: 50%; content: ""; }
.certification-mark { display: inline-grid; width: 132px; height: 132px; place-content: center; margin-bottom: 70px; border: 1px solid rgba(255,255,255,.2); text-align: center; }
.certification-mark span { color: var(--sand); font-family: var(--serif); font-size: 48px; line-height: .85; }
.certification-mark b { margin-top: 7px; font-size: 10px; letter-spacing: .18em; }
.certification-mark small { margin-top: 4px; color: #7f8f92; font-size: 7px; letter-spacing: .12em; }
.certification-intro h2 { margin-bottom: 25px; font-size: clamp(29px, 2.8vw, 42px); }
.certification-intro > p:last-child { max-width: 470px; color: #9dabad; }
.certificate-list { border-left: 1px solid rgba(255,255,255,.14); }
.certificate-list article { display: grid; min-height: 129px; align-items: center; padding: 24px 40px; border-bottom: 1px solid rgba(255,255,255,.14); grid-template-columns: 80px 1fr; }
.certificate-list article:last-child { border-bottom: 0; }
.certificate-list article > b { color: var(--sand); font-family: var(--serif); font-size: 24px; font-weight: 400; }
.certificate-list h3 { margin: 0 0 7px; font-size: 16px; font-weight: 500; letter-spacing: .06em; }
.certificate-list p { margin: 0; color: #87979a; font-size: 12px; }
.materials-block { display: grid; align-items: start; margin-top: 96px; grid-template-columns: .65fr 1.35fr; gap: 90px; }
.materials-block > div:first-child { position: sticky; top: 125px; }
.materials-block h2 { margin: 0; font-size: clamp(29px, 2.9vw, 43px); }
.materials-grid { display: grid; grid-template-columns: repeat(2, 1fr); }
.materials-grid article { min-height: 220px; padding: 28px; border: 1px solid var(--line); border-right: 0; border-bottom: 0; }
.materials-grid article:nth-child(even) { border-right: 1px solid var(--line); }
.materials-grid article:nth-last-child(-n+2) { border-bottom: 1px solid var(--line); }
.material-icon { position: relative; display: block; width: 45px; height: 45px; margin-bottom: 35px; }
.material-icon::before, .material-icon::after { position: absolute; content: ""; }
.material-1::before { inset: 3px 7px; border: 2px solid #9e7340; transform: skewX(-13deg); }
.material-1::after { inset: 10px 14px; border-inline: 2px solid #9e7340; }
.material-2::before { top: 4px; left: 8px; width: 28px; height: 34px; border: 2px solid #9e7340; border-radius: 50% 50% 45% 45%; }
.material-2::after { top: 20px; left: 18px; width: 10px; height: 10px; border-right: 2px solid #9e7340; border-bottom: 2px solid #9e7340; transform: rotate(45deg); }
.material-3::before { inset: 7px 4px; border: 2px solid #9e7340; border-radius: 50%; }
.material-3::after { top: 21px; left: 9px; width: 27px; height: 2px; background: #9e7340; transform: rotate(-30deg); }
.material-4::before { inset: 5px; border: 2px dashed #9e7340; border-radius: 4px; }
.material-4::after { inset: 13px; background: rgba(213,173,112,.3); }
.material-5::before { top: 7px; left: 11px; width: 22px; height: 30px; border: 2px solid #9e7340; transform: rotate(45deg); }
.material-5::after { top: 20px; left: 5px; width: 35px; height: 2px; background: #9e7340; }
.materials-grid h3 { margin-bottom: 10px; font-family: var(--serif); font-size: 20px; font-weight: 400; }
.materials-grid p { margin: 0; font-size: 13px; }
.technical-references { display: grid; align-items: end; gap: 65px; margin-top: 90px; padding: 42px; border: 1px solid var(--line); background: var(--surface); grid-template-columns: .62fr 1.38fr; }
.technical-references h3 { margin: 0; font-family: var(--serif); font-size: 22px; font-weight: 400; }
.technical-references > div:last-child { display: flex; flex-wrap: wrap; gap: 8px; }
.technical-references span { padding: 9px 13px; border: 1px solid rgba(11,23,27,.18); border-radius: 100px; color: #4d5b5f; font-size: 10px; }

.interior-grid { display: grid; align-items: center; grid-template-columns: .62fr 1.38fr; gap: clamp(60px, 8vw, 120px); }
.interior-copy h2 { margin-bottom: 30px; }
.interior-copy p { max-width: 410px; margin-bottom: 26px; }
.interior figure { margin: 0; }
.interior-media { display: grid; align-items: stretch; gap: 16px; grid-template-columns: .62fr 1.38fr; }
.interior-media figure:first-child { transform: translateY(48px); }
.interior img { height: 100%; min-height: 520px; object-fit: cover; box-shadow: var(--shadow); }

.project-gallery { padding-top: 42px; background: var(--surface); }
.project-stories { display: grid; align-items: start; gap: 16px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.project-story-column { display: flex; min-width: 0; flex-direction: column; gap: 16px; }
.project-story { width: 100%; margin: 0; border: 1px solid rgba(11,23,27,.14); background: var(--surface-soft); }
.project-story figure { margin: 0; background: var(--ink); overflow: hidden; }
.project-story img { display: block; width: 100%; height: auto; }
.project-story:hover img:not([data-keep-color]) { filter: none; }
.project-story-copy { padding: 23px 24px 25px; }
.project-story-heading { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 34px; }
.project-story-heading span { color: #9e7340; font-family: var(--serif); font-size: 17px; }
.project-story-heading p { margin: 0; color: #86643e; font-size: 9px; letter-spacing: .14em; text-align: right; text-transform: uppercase; }
.project-story h3 { margin: 0 0 15px; font-family: var(--serif); font-size: clamp(20px, 1.7vw, 25px); font-weight: 400; line-height: 1.12; }
.project-story-copy > p { margin: 0; font-size: 13px; line-height: 1.65; }
.project-story small { display: block; margin-top: 26px; padding-top: 14px; border-top: 1px solid rgba(11,23,27,.14); color: #556166; font-size: 9px; letter-spacing: .1em; text-transform: uppercase; }

.process { padding-top: 30px; }
.process .section-heading { max-width: 870px; grid-template-columns: 1fr; }
.process-grid { display: grid; margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; grid-template-columns: repeat(4, 1fr); }
.process-grid li { min-height: 290px; padding: 32px 28px; border-right: 1px solid var(--line); }
.process-grid li:first-child { border-left: 1px solid var(--line); }
.process-grid b { color: #9e7340; font-family: var(--serif); font-weight: 400; }
.process-grid h3 { margin: 65px 0 15px; font-family: var(--serif); font-size: 20px; font-weight: 400; }
.process-grid p { font-size: 14px; }

.faq-section { padding: 124px 0; border-top: 1px solid var(--line); background: var(--surface); }
.faq-section h2 { margin-bottom: 52px; }
.accordions { border-top: 1px solid var(--line); }
.accordions details { border-bottom: 1px solid var(--line); }
.accordions summary { display: flex; min-height: 82px; align-items: center; justify-content: space-between; gap: 24px; cursor: pointer; font-family: var(--serif); font-size: 18px; list-style: none; }
.accordions summary::-webkit-details-marker { display: none; }
.accordions summary span { color: #9e7340; font-family: var(--sans); font-size: 24px; font-weight: 300; transition: transform .2s; }
.accordions details[open] summary span { transform: rotate(45deg); }
.accordions details p { max-width: 760px; padding: 0 50px 28px 0; }

.quote-section { padding: 132px 0; color: var(--white); background: #14262b; }
.quote-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(70px, 9vw, 145px); }
.quote-copy { align-self: start; }
.quote-copy h2 { max-width: 500px; margin-bottom: 30px; }
.quote-copy > p:not(.eyebrow) { max-width: 450px; color: #aeb9bb; }
.direct-contact { display: flex; flex-direction: column; align-items: flex-start; margin-top: 52px; }
.direct-contact span { margin-bottom: 12px; color: #819095; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.direct-contact a { padding-block: 4px; font-family: var(--serif); font-size: 20px; }
.quote-form { display: grid; gap: 22px; }
.photo-first { display: flex; align-items: flex-start; gap: 16px; padding: 18px 20px; border-left: 2px solid var(--sand); background: rgba(255,255,255,.045); }
.photo-first .icon { width: 25px; height: 25px; flex: 0 0 auto; color: var(--sand); }
.photo-first b { display: block; color: var(--white); font-size: 14px; font-weight: 500; }
.photo-first p { margin: 3px 0 0; color: #9eabad; font-size: 12px; }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.quote-form label:not(.consent):not(.file-field) { display: grid; gap: 7px; color: #c4ccce; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.quote-form input, .quote-form textarea, .quote-form select { width: 100%; padding: 13px 0; color: var(--white); border: 0; border-bottom: 1px solid rgba(255,255,255,.25); border-radius: 0; outline: 0; background: transparent; text-transform: none; transition: border-color .2s; }
.quote-form textarea { resize: vertical; }
.quote-form select { color-scheme: dark; }
.quote-form input:focus, .quote-form textarea:focus, .quote-form select:focus { border-color: var(--sand); }
.file-field { position: relative; display: block; padding: 22px; border: 1px dashed rgba(255,255,255,.3); cursor: pointer; transition: border-color .2s, background .2s; }
.file-field:hover { border-color: var(--sand); background: rgba(255,255,255,.03); }
.file-field > span { display: grid; align-items: center; grid-template-columns: auto 1fr; gap: 4px 14px; }
.file-field .icon { grid-row: 1 / 3; color: var(--sand); }
.file-field b { font-size: 13px; font-weight: 500; }
.file-field small { color: #8c999c; font-size: 11px; }
.file-field input { position: absolute; width: 1px; height: 1px; overflow: hidden; opacity: 0; }
.consent { display: flex; align-items: flex-start; gap: 11px; color: #8f9c9f; font-size: 11px; line-height: 1.55; }
.consent input { width: 16px; height: 16px; flex: 0 0 auto; margin-top: 1px; accent-color: var(--sand); }
.consent a { color: #c8d0d1; text-decoration: underline; text-underline-offset: 2px; }
.submit-button { justify-self: start; min-width: 255px; color: var(--ink); border-color: var(--sand); background: var(--sand); }
.submit-button:hover { border-color: #e1bf8b; background: #e1bf8b; }
.submit-button:disabled { cursor: wait; opacity: .6; transform: none; }
.submit-button.loading .icon { animation: pulse 1s infinite; }
.form-status { min-height: 24px; margin: 0; font-size: 13px; }
.form-status.success { color: #a8d6c6; }
.form-status.error { color: #e4b6ae; }
.honeypot { position: absolute; left: -10000px; }

.footer { padding: 74px 0 54px; color: var(--white); background: #081115; border-top: 1px solid rgba(255,255,255,.1); }
.footer-grid { display: grid; grid-template-columns: 1.7fr repeat(3, 1fr); gap: 70px; }
.footer .brand { margin-bottom: 25px; }
.footer .brand p { color: #718085; }
.footer-grid > div:first-child > p { max-width: 350px; color: #718085; font-size: 13px; }
.footer h3 { margin-bottom: 20px; color: #718085; font-size: 10px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; }
.footer-grid > div:not(:first-child) { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.footer a, .footer span { color: #bec7c8; font-size: 12px; }
.footer a:hover { color: var(--white); }

.floating-contacts { position: fixed; z-index: 80; right: 24px; bottom: 24px; display: flex; align-items: center; gap: 8px; }
.floating-contacts a { display: flex; height: 48px; align-items: center; justify-content: center; border-radius: 100px; box-shadow: 0 10px 30px rgba(0,0,0,.18); }
.float-telegram { width: 48px; color: var(--white); background: #2f7895; }
.float-telegram span { font-size: 19px; transform: rotate(-25deg); }
.float-whatsapp { gap: 10px; padding: 0 18px; color: #09251d; background: #7fd9b3; font-size: 11px; font-weight: 600; }
.float-whatsapp .icon { width: 17px; }

.service-hero { padding: 155px 0 90px; }
.service-hero-grid { display: grid; min-height: 620px; align-items: center; grid-template-columns: .88fr 1.12fr; gap: clamp(55px, 8vw, 120px); }
.service-hero-copy h1 { margin-bottom: 34px; font-size: clamp(38px, 4.1vw, 62px); }
.service-hero-copy > p:not(.eyebrow) { max-width: 590px; margin-bottom: 34px; font-size: 18px; }
.service-hero figure { position: relative; margin: 0; box-shadow: var(--shadow); }
.service-hero figure::after { position: absolute; z-index: -1; inset: -20px 20px 20px -20px; border: 1px solid var(--sand); content: ""; }
.service-hero img { aspect-ratio: 1.12 / 1; object-fit: cover; }
.service-intro { background: var(--surface); }
.benefit-grid { display: grid; border-top: 1px solid var(--line); grid-template-columns: repeat(3, 1fr); }
.benefit-grid article { min-height: 280px; padding: 30px; border-right: 1px solid var(--line); }
.benefit-grid article:first-child { border-left: 1px solid var(--line); }
.benefit-grid b { color: #9e7340; font-family: var(--serif); font-weight: 400; }
.benefit-grid h2 { margin: 60px 0 16px; font-size: 24px; }
.benefit-grid p { font-size: 14px; }
.applications { padding: 100px 0; color: var(--white); background: var(--ink); }
.applications-grid { display: grid; align-items: start; grid-template-columns: 1fr 1fr; gap: 100px; }
.applications h2 { max-width: 600px; }
.applications ul { display: grid; margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,.15); list-style: none; }
.applications li { display: flex; align-items: center; gap: 16px; padding: 18px 5px; border-bottom: 1px solid rgba(255,255,255,.15); }
.applications li .icon { color: var(--sand); }
.service-process-grid { display: grid; grid-template-columns: 1fr .8fr; gap: 120px; }
.service-process-grid h2 { max-width: 700px; }
.service-process-grid > div:last-child { padding-top: 44px; }
.service-process-grid p { font-size: 18px; line-height: 1.7; }
.legal-page { min-height: 70vh; padding-top: 160px; padding-bottom: 120px; }
.legal-page h1 { margin-bottom: 20px; font-size: clamp(38px, 4.2vw, 60px); }
.legal-date { margin-bottom: 70px; }
.legal-page h2 { margin: 44px 0 14px; font-family: var(--sans); font-size: 18px; font-weight: 600; letter-spacing: 0; }
.legal-page a { text-decoration: underline; text-underline-offset: 3px; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
@keyframes pulse { 50% { transform: translateX(4px); } }

@media (max-width: 1100px) {
  .main-nav { gap: 18px; }
  .main-nav > a:not(.button):not(.language):not(.header-phone) { display: none; }
  .hero-grid, .service-hero-grid { gap: 50px; }
  .hero-copy { padding-left: 0; }
  .hero h1 { font-size: clamp(38px, 4.5vw, 56px); }
  .featured-solutions { grid-template-columns: repeat(2, 1fr); }
  .technology-grid { gap: 70px; }
  .engineering-heading { gap: 55px; }
  .materials-block { gap: 55px; }
  .footer-grid { gap: 40px; grid-template-columns: 1.4fr repeat(3, 1fr); }
}

@media (max-width: 850px) {
  .container { width: min(calc(100% - 36px), var(--container)); }
  .section { padding: 90px 0; }
  .header-inner { height: 72px; }
  .main-nav { position: fixed; inset: 72px 0 auto; display: flex; width: 100%; height: calc(100vh - 72px); height: calc(100dvh - 72px); align-items: flex-start; flex-direction: column; gap: 0; padding: 30px 18px 80px; overflow-y: auto; background: var(--paper); transform: translateX(101%); transition: transform .3s; }
  .main-nav.open { transform: translateX(0); }
  .main-nav > a:not(.button):not(.language) { display: block; width: 100%; padding: 18px 4px; border-bottom: 1px solid var(--line); font-family: var(--serif); font-size: 28px; }
  .main-nav > a.header-phone.header-phone-desktop { display: none; }
  .main-nav .language { width: 100%; margin-top: 18px; padding: 16px 4px !important; border-left: 0; }
  .main-nav .button { width: 100%; margin-top: 16px; }
  .header-mobile-actions { display: flex; }
  .menu-toggle { display: block; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .hero { padding-top: 125px; }
  .hero-grid, .service-hero-grid { min-height: 0; grid-template-columns: 1fr; }
  .hero-media { width: 92%; margin-left: auto; }
  .hero-media img { aspect-ratio: 1.15 / 1; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid > div:nth-child(2) { border-right: 0; }
  .trust-grid > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section-heading { grid-template-columns: 1fr; gap: 28px; }
  .featured-solutions { grid-template-columns: repeat(2, 1fr); }
  .solution-card { min-height: 360px; }
  .capability-grid, .visual-guide-grid { gap: 12px; grid-template-columns: repeat(2, 1fr); }
  .capability-card-copy { padding: 20px; }
  .capability-card-copy p { display: block; }
  .image-story-grid, .interior-grid { grid-template-columns: 1fr; }
  .image-story-grid figure { order: 2; }
  .interior-grid { gap: 50px; }
  .interior-media { grid-template-columns: .8fr 1.2fr; }
  .interior img { min-height: 430px; }
  .technology-grid { grid-template-columns: 1fr; }
  .technology-copy { position: static; }
  .investment-grid, .technical-cta-grid, .professional-gateway-grid { grid-template-columns: 1fr; gap: 52px; }
  .engineering-heading, .engineering-core, .certification-layout, .materials-block, .technical-references { grid-template-columns: 1fr; }
  .engineering-core-single .calculation-card { display: block; }
  .engineering-core-single .comparison-row { margin-top: 52px; }
  .engineering-heading { gap: 28px; }
  .engineering-metrics { grid-template-columns: 1fr; }
  .engineering-metrics article { min-height: 215px; border-right: 1px solid var(--line); border-bottom: 0; }
  .engineering-metrics article:last-child { border-bottom: 1px solid var(--line); }
  .certificate-list { border-top: 1px solid rgba(255,255,255,.14); border-left: 0; }
  .materials-block > div:first-child { position: static; }
  .technical-references { gap: 30px; }
  .project-stories { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .project-story-column { display: contents; }
  .project-story { order: var(--story-order); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid li:nth-child(3) { border-left: 1px solid var(--line); }
  .process-grid li { border-bottom: 1px solid var(--line); }
  .quote-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .benefit-grid { grid-template-columns: 1fr; }
  .benefit-grid article { min-height: 210px; border-left: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .benefit-grid h2 { margin-top: 38px; }
  .applications-grid, .service-process-grid { grid-template-columns: 1fr; gap: 50px; }
  .service-process-grid > div:last-child { padding-top: 0; }
}

@media (max-width: 560px) {
  html { scroll-padding-top: 72px; }
  .container { width: min(calc(100% - 28px), var(--container)); }
  h1 { font-size: 36px; }
  h2 { font-size: 30px; }
  .site-header .brand-logo-full { display: none; }
  .site-header .brand-logo-mobile { display: block; }
  .header-phone-mobile span { font-size: 11px; }
  .hero { padding: 112px 0 58px; }
  .hero-grid { gap: 42px; }
  .hero h1 { font-size: 35px; }
  .hero-lead { font-size: 16px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button, .hero-actions .text-link { width: 100%; justify-content: space-between; }
  .hero-note { margin-top: 28px; }
  .hero-media { width: calc(100% - 8px); }
  .hero-media::before { top: -12px; right: -12px; }
  .hero-media figcaption { min-width: auto; padding: 12px 15px; }
  .trust-grid > div { min-height: 92px; padding: 14px 16px; }
  .trust-grid b { font-size: 25px; }
  .trust-grid span { font-size: 9px; }
  .section { padding: 78px 0; }
  .section-heading { margin-bottom: 45px; }
  .solution-card { padding: 25px; }
  .solution-card h3 { font-size: 22px; }
  .featured-solutions { grid-template-columns: 1fr; }
  .solution-card { min-height: 390px; }
  .capability-grid, .visual-guide-grid { grid-template-columns: 1fr; }
  .capability-card-copy { padding: 28px; }
  .capability-card-copy p { display: block; }
  .visual-guides { padding-top: 58px; }
  .visual-guide-card img { aspect-ratio: 1.2 / 1; }
  .image-story { padding-bottom: 80px; }
  .technology-points { grid-template-columns: 1fr; }
  .technology-points > div { min-height: 190px; border-right: 0; }
  .technology-points h3 { margin-top: 28px; }
  .calculation-card { padding: 25px; }
  .engineering-metrics span { font-size: 34px; }
  .certification-intro { padding: 35px 25px; }
  .certification-mark { margin-bottom: 48px; }
  .certificate-list article { min-height: 112px; padding: 22px 24px; grid-template-columns: 60px 1fr; }
  .materials-grid { grid-template-columns: 1fr; }
  .materials-grid article, .materials-grid article:nth-child(even), .materials-grid article:nth-last-child(-n+2) { border-right: 1px solid var(--line); border-bottom: 0; }
  .materials-grid article:last-child { border-bottom: 1px solid var(--line); }
  .technical-references { padding: 28px 22px; }
  .interior-media { grid-template-columns: 1fr; }
  .interior-media figure:first-child { display: none; }
  .interior img { min-height: 380px; }
  .project-stories { grid-template-columns: 1fr; }
  .project-story-copy { padding: 22px 20px 24px; }
  .project-story-heading { margin-bottom: 26px; }
  .process { padding-top: 15px; }
  .process-grid { grid-template-columns: 1fr; }
  .process-grid li { min-height: 215px; border-left: 1px solid var(--line); }
  .process-grid h3 { margin-top: 35px; }
  .faq-section { padding: 78px 0; }
  .accordions summary { min-height: 76px; font-size: 17px; }
  .quote-section { padding: 80px 0; }
  .form-row { grid-template-columns: 1fr; }
  .submit-button { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > div:first-child { grid-column: auto; }
  .floating-contacts { right: 12px; bottom: 12px; }
  .float-whatsapp span { display: none; }
  .float-whatsapp { width: 48px; padding: 0; }
  .service-hero { padding: 120px 0 70px; }
  .service-hero-copy h1 { font-size: 34px; }
  .service-hero-grid { gap: 42px; }
  .applications { padding: 78px 0; }
  .legal-page { padding-top: 125px; padding-bottom: 80px; }
  .investment-factors article { min-height: 125px; grid-template-columns: 46px 1fr; }
  .technical-cta { padding: 78px 0; }
  .professional-gateway { padding: 78px 0; }
  .professional-roles span { min-height: 96px; padding: 18px; }
}

@media (max-width: 380px) {
  .header-phone-mobile { width: 38px; justify-content: center; padding-inline: 6px; }
  .header-phone-mobile span { display: none; }
}

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