/* Robust bevat alleen themavariabelen en layouts die niet in base.css of components.css staan. */
:root {
  --color-primary: #202522;
  --color-secondary: #4d554f;
  --color-accent: #c8753d;
  --color-text: #252a27;
  --color-text-light: #68706b;
  --color-background: #f4f1e9;
  --color-background-alt: #e5e0d5;
  --color-border: #b8b5ac;
  --font-body: "Arial Narrow", Arial, sans-serif;
  --font-heading: Impact, "Arial Black", sans-serif;
  --border-radius: 0;
}

body { letter-spacing: .01em; }
h1, h2, h3 { letter-spacing: -.025em; text-transform: uppercase; }
.kicker { margin-bottom: 1rem; color: var(--color-accent); font-size: .75rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.text-link { display: inline-block; border-bottom: 2px solid var(--color-accent); font-weight: 800; text-decoration: none; }
.button-row { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }

/* Eigen, compacte merkheader voor Robust */
.site-header { background: var(--color-primary); border: 0; }
.site-header__inner { min-height: 4.5rem; }
.site-logo { display: flex; align-items: baseline; gap: .45rem; flex: 0 0 auto; margin: 0; color: #fff; text-align: left; }
.site-logo span { font-family: var(--font-heading); letter-spacing: .04em; }
.site-logo small { color: var(--color-accent); font-size: .62rem; letter-spacing: .2em; }
.main-nav { margin: 0 0 0 auto; flex: 0 1 43rem; }
.main-nav ul { justify-content: flex-end; gap: clamp(1rem, 3vw, 2.4rem); }
.main-nav a { color: #fff; font-size: .82rem; letter-spacing: .08em; text-transform: uppercase; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: #fff; box-shadow: 0 3px 0 var(--color-accent); }

.hero { padding: 0; background: var(--color-background-alt); }
.hero__grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(23rem, 1.1fr); min-height: 42rem; }
.hero__content { align-self: center; padding: 5rem 5rem 5rem 0; position: relative; z-index: 1; }
.hero__content::before { content: ""; position: absolute; z-index: -1; top: 1rem; right: 0; bottom: 1rem; width: 45vw; background: linear-gradient(135deg, transparent 50%, rgb(0 0 0 / 4%) 50%); }
.hero h1 { max-width: 8ch; margin-bottom: 1.5rem; font-size: clamp(4rem, 8vw, 7.5rem); line-height: .87; }
.hero__lead { max-width: 35rem; margin-bottom: 2rem; font-size: 1.15rem; }
.hero__media { position: relative; margin: 0; min-height: 34rem; clip-path: polygon(11% 0, 100% 0, 100% 100%, 0 100%); }
.hero__media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.65) contrast(1.08); }
.hero__media figcaption { position: absolute; left: 0; bottom: 0; display: grid; padding: 1.2rem 1.5rem; background: var(--color-accent); color: #fff; text-transform: uppercase; }
.hero__media figcaption strong { font-family: var(--font-heading); font-size: 2.4rem; line-height: 1; }
.hero__media figcaption span { font-size: .65rem; letter-spacing: .15em; }

.proof-strip { padding: 0; background: var(--color-primary); color: #fff; }
.proof-strip__grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.proof-strip p { margin: 0; padding: 1.4rem 2rem; border-left: 1px solid rgb(255 255 255 / 18%); font-weight: 800; text-transform: uppercase; }
.proof-strip p:last-child { border-right: 1px solid rgb(255 255 255 / 18%); }
.proof-strip span { margin-right: .9rem; color: var(--color-accent); }

.split-heading { display: grid; grid-template-columns: 1.1fr .7fr; gap: 4rem; align-items: end; margin-bottom: 3rem; }
.split-heading h2 { max-width: 13ch; margin-bottom: 0; }
.split-heading > p { margin-bottom: .4rem; border-left: 3px solid var(--color-accent); padding-left: 1.25rem; }
.service-index__list { border-top: 3px solid var(--color-primary); }
.service-index__list a { display: grid; grid-template-columns: 4rem 1fr 1fr auto; align-items: center; gap: 1rem; padding: 1.4rem 1rem; border-bottom: 1px solid var(--color-border); color: inherit; text-decoration: none; transition: background .2s, padding .2s; }
.service-index__list a:hover { padding-inline: 1.5rem; background: var(--color-background-alt); }
.service-index__list span { color: var(--color-accent); font-weight: 800; }
.service-index__list strong { font-family: var(--font-heading); font-size: 1.5rem; text-transform: uppercase; }
.service-index__list em { color: var(--color-text-light); font-style: normal; }
.service-index__list b { font-size: 1.4rem; }

.project-feature { background: var(--color-background-alt); }
.project-feature__grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 0; align-items: stretch; }
.project-feature img { width: 100%; height: 34rem; object-fit: cover; }
.project-feature__grid > div { display: flex; flex-direction: column; justify-content: center; padding: 3rem; border: 1px solid var(--color-border); border-left: 0; }
.project-feature dl { margin: 1rem 0 2rem; }
.project-feature dl div, .hours div { display: flex; justify-content: space-between; gap: 1rem; padding: .65rem 0; border-bottom: 1px solid var(--color-border); }
.project-feature dt, .hours dt { color: var(--color-text-light); }
.project-feature dd, .hours dd { margin: 0; font-weight: 800; }

.cta-band { background: var(--color-accent); color: #fff; }
.cta-band .container { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 2rem; }
.cta-band .kicker { grid-column: 1 / -1; margin-bottom: -1rem; color: var(--color-primary); }
.cta-band h2 { margin: 0; color: #fff; font-size: clamp(2.5rem, 5vw, 4.5rem); }
.button--light { background: #fff; color: var(--color-primary); }
.button--light:hover { background: var(--color-primary); color: #fff; }

.page-intro { position: relative; overflow: hidden; background: var(--color-primary); color: #fff; }
.page-intro::after { content: ""; position: absolute; right: -5rem; bottom: -8rem; width: 28rem; aspect-ratio: 1; border: 5rem solid rgb(255 255 255 / 4%); transform: rotate(35deg); }
.page-intro__grid { display: grid; grid-template-columns: .35fr 1fr; gap: 3rem; align-items: start; position: relative; z-index: 1; }
.page-number { color: var(--color-accent); font-size: .72rem; font-weight: 800; letter-spacing: .18em; }
.page-intro h1 { max-width: 14ch; margin-bottom: 1rem; color: #fff; font-size: clamp(3.4rem, 7vw, 6.5rem); line-height: .9; }
.page-intro__grid > div > p { max-width: 39rem; font-size: 1.15rem; }

.story__grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(2rem, 7vw, 7rem); align-items: center; }
.story__media { position: relative; }
.story__media img { width: 100%; height: 38rem; object-fit: cover; filter: grayscale(.5); }
.story__media span { position: absolute; right: -2rem; bottom: 3rem; padding: 1.5rem; background: var(--color-accent); color: #fff; font-family: var(--font-heading); font-size: 1.5rem; line-height: 1.05; text-transform: uppercase; }
.story__content blockquote { margin: 2rem 0 0; padding: 1.5rem 0 0 1.5rem; border-top: 3px solid var(--color-primary); border-left: 3px solid var(--color-accent); font-family: var(--font-heading); font-size: 1.45rem; text-transform: uppercase; }
.principles { background: var(--color-background-alt); }
.principles__list { margin: 0; padding: 0; list-style: none; border-top: 3px solid var(--color-primary); }
.principles__list li { display: grid; grid-template-columns: 7rem 1fr; padding: 2rem 0; border-bottom: 1px solid var(--color-border); }
.principles__list li > span { color: var(--color-accent); font-family: var(--font-heading); font-size: 2rem; }
.principles__list h3 { margin-bottom: .4rem; }
.principles__list p { max-width: 48rem; margin: 0; }
.fact-wall { padding: 0; background: var(--color-primary); color: #fff; }
.fact-wall__grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.fact-wall__grid div { display: grid; padding: 2.5rem 1.5rem; border-left: 1px solid rgb(255 255 255 / 15%); }
.fact-wall strong { color: var(--color-accent); font-family: var(--font-heading); font-size: 3.5rem; line-height: 1; }
.fact-wall span { font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; }

.services-detail { padding: 0; }
.service-row { display: grid; grid-template-columns: minmax(4rem, .18fr) minmax(20rem, .82fr) 1fr; min-height: 32rem; border-bottom: 1px solid var(--color-border); }
.service-row__number { padding: 3rem 1rem; background: var(--color-primary); color: var(--color-accent); font-family: var(--font-heading); font-size: 2.5rem; text-align: center; }
.service-row__content { align-self: center; padding: 3rem clamp(2rem, 6vw, 6rem); }
.service-row img { width: 100%; height: 100%; min-height: 32rem; object-fit: cover; }
.service-row--reverse { grid-template-columns: 1fr minmax(20rem, .82fr) minmax(4rem, .18fr); }
.service-row--reverse img { grid-column: 1; grid-row: 1; }
.service-row--reverse .service-row__content { grid-column: 2; grid-row: 1; }
.service-row--reverse .service-row__number { grid-column: 3; grid-row: 1; }
.tick-list { padding: 0; list-style: none; }
.tick-list li { padding: .55rem 0 .55rem 1.7rem; border-bottom: 1px solid var(--color-border); position: relative; }
.tick-list li::before { content: "/"; position: absolute; left: .3rem; color: var(--color-accent); font-weight: 900; }
.process-rail { background: var(--color-background-alt); }
.process-rail ol { display: grid; grid-template-columns: repeat(4, 1fr); margin: 3rem 0 0; padding: 0; list-style: none; counter-reset: step; }
.process-rail li { padding: 1.5rem; border-top: 4px solid var(--color-primary); border-right: 1px solid var(--color-border); }
.process-rail li:nth-child(even) { border-top-color: var(--color-accent); }
.process-rail li span { display: block; margin-bottom: 2rem; color: var(--color-accent); font-weight: 800; }
.process-rail li strong { display: block; margin-bottom: .5rem; font-family: var(--font-heading); font-size: 1.3rem; text-transform: uppercase; }

.portfolio { background: var(--color-background-alt); }
.portfolio__grid { display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: 18rem; gap: 1rem; }
.portfolio__item { position: relative; margin: 0; overflow: hidden; background: var(--color-primary); }
.portfolio__item--wide { grid-column: span 2; }
.portfolio__item--tall { grid-row: span 2; }
.portfolio__item img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s, opacity .35s; }
.portfolio__item:hover img { transform: scale(1.035); opacity: .72; }
.portfolio__item figcaption { position: absolute; right: 0; bottom: 0; left: 0; display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; padding: 1rem; background: linear-gradient(transparent, rgb(0 0 0 / 85%)); color: #fff; transform: translateY(.5rem); transition: transform .25s; }
.portfolio__item:hover figcaption { transform: none; }
.portfolio__item figcaption > span { color: var(--color-accent); font-weight: 800; }
.portfolio__item figcaption div { display: grid; }
.portfolio__item figcaption strong { text-transform: uppercase; }
.portfolio__item figcaption small { color: rgb(255 255 255 / 70%); }
.material-note__grid { display: grid; grid-template-columns: .4fr 1.2fr auto; gap: 3rem; align-items: start; }
.material-note h2 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.8rem); }

.contact-hero { background: var(--color-primary); color: #fff; }
.contact-hero__grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 5rem; align-items: end; }
.contact-hero h1 { max-width: 11ch; color: #fff; font-size: clamp(3.5rem, 7vw, 6.8rem); line-height: .9; }
.contact-hero__grid > div:first-child > p:last-child { max-width: 38rem; font-size: 1.1rem; }
.contact-panel { padding: 2rem; border: 1px solid rgb(255 255 255 / 22%); border-top: 6px solid var(--color-accent); }
.contact-panel__primary { display: block; padding: .8rem 0; border-bottom: 1px solid rgb(255 255 255 / 20%); color: #fff; font-family: var(--font-heading); font-size: clamp(1.3rem, 2.5vw, 2rem); text-decoration: none; }
.contact-panel > p:last-child { margin: 1rem 0 0; color: rgb(255 255 255 / 68%); }
.contact-details__grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 3px solid var(--color-primary); }
.contact-details article { padding: 2rem; border-right: 1px solid var(--color-border); }
.contact-details article:last-child { border-right: 0; }
.contact-details article > span { color: var(--color-accent); font-weight: 800; }
.contact-details h2 { margin-top: 2rem; }
.route { background: var(--color-background-alt); }
.route__grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 4rem; align-items: center; }
.route__map { display: flex; flex-direction: column; justify-content: center; align-items: center; min-height: 27rem; padding: 2rem; background: linear-gradient(35deg, transparent 48%, rgb(255 255 255 / 60%) 49% 51%, transparent 52%), linear-gradient(145deg, transparent 48%, rgb(255 255 255 / 60%) 49% 51%, transparent 52%), #c9c5ba; background-size: 7rem 7rem; text-align: center; }
.route__map span { padding: 1rem 1.3rem; background: var(--color-accent); color: #fff; font-family: var(--font-heading); font-size: 1.6rem; line-height: 1; }
.route__map small { padding: .5rem .8rem; background: var(--color-primary); color: #fff; }
.contact-prompt { padding-block: 2rem; background: var(--color-accent); color: #fff; }
.contact-prompt .container { display: flex; align-items: center; gap: 3rem; }
.contact-prompt p { margin: 0; font-family: var(--font-heading); font-size: 1.4rem; text-transform: uppercase; }
.contact-prompt ul { display: flex; gap: 2rem; margin: 0; padding: 0; list-style: none; }
.contact-prompt li::before { content: "/ "; font-weight: 900; }

.site-footer { background: #141715; font-size: .85rem; text-align: left; }
.site-footer .item { padding-inline: 2rem; border-right: 1px solid rgb(255 255 255 / 15%); }
.site-footer .item:last-child { border-right: 0; }

@media (max-width: 900px) {
  .hero__grid, .story__grid, .project-feature__grid, .contact-hero__grid, .route__grid { grid-template-columns: 1fr; }
  .hero__content { padding: 4rem 0; }
  .hero__content::before { display: none; }
  .hero__media { clip-path: none; min-height: 27rem; }
  .project-feature__grid > div { border-left: 1px solid var(--color-border); }
  .service-row, .service-row--reverse { grid-template-columns: 4rem 1fr; }
  .service-row img, .service-row--reverse img { grid-column: 1 / -1; grid-row: 2; min-height: 24rem; }
  .service-row__content, .service-row--reverse .service-row__content { grid-column: 2; grid-row: 1; }
  .service-row__number, .service-row--reverse .service-row__number { grid-column: 1; grid-row: 1; }
  .process-rail ol, .fact-wall__grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio__grid { grid-template-columns: repeat(2, 1fr); }
  .material-note__grid { grid-template-columns: 1fr; gap: 1rem; }
  .contact-prompt .container, .contact-prompt ul { align-items: flex-start; flex-direction: column; gap: 1rem; }
}

@media (max-width: 768px) {
  .site-logo { margin: 0; }
  .main-nav { margin: 0; }
  .split-heading, .page-intro__grid, .contact-details__grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .proof-strip__grid { grid-template-columns: 1fr; }
  .proof-strip p, .proof-strip p:last-child { border-right: 0; border-bottom: 1px solid rgb(255 255 255 / 18%); }
  .service-index__list a { grid-template-columns: 2.5rem 1fr auto; }
  .service-index__list em { grid-column: 2; }
  .cta-band .container { grid-template-columns: 1fr; }
  .story__media span { right: 0; }
  .contact-details article { border-right: 0; border-bottom: 1px solid var(--color-border); }
  .site-footer { flex-direction: column; align-items: stretch; gap: 1.5rem; }
  .site-footer .item { padding: 0; border: 0; }
}

@media (max-width: 540px) {
  .hero h1, .page-intro h1, .contact-hero h1 { font-size: 3.25rem; }
  .process-rail ol, .fact-wall__grid, .portfolio__grid { grid-template-columns: 1fr; }
  .portfolio__item--wide { grid-column: span 1; }
  .portfolio__item--tall { grid-row: span 1; }
  .service-row, .service-row--reverse { grid-template-columns: 3.2rem 1fr; }
  .service-row__content { padding: 2rem 1.4rem; }
}