:root {
  --ink: #1a1512;
  --paper: #f7f3ee;
  --paper-dim: #efe8de;
  --oak: #a9673a;
  --oak-dark: #7c4a27;
  --line: #ddd3c4;
  --max: 1140px;
  --font-head: 'Oswald', 'Arial Narrow', sans-serif;
  --font-body: 'Karla', -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 0.5em;
  line-height: 1.1;
}

.eyebrow {
  font-family: var(--font-head);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.8rem;
  color: var(--oak-dark);
  margin: 0 0 0.6em;
}

.btn {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.9em 1.8em;
  text-decoration: none;
  border-radius: 2px;
  transition: background 0.2s ease, transform 0.2s ease;
}
.btn:hover { background: var(--oak-dark); transform: translateY(-1px); }
.btn--light { background: var(--paper); color: var(--ink); }
.btn--light:hover { background: var(--oak); color: var(--paper); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(247, 243, 238, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand { display: flex; align-items: center; }
.brand-logo { height: 44px; width: auto; }
.site-nav { display: flex; gap: 28px; }
.site-nav a {
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--ink);
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease;
}
.site-nav a:hover { border-color: var(--oak); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  width: 100%;
}

/* Hero */
.hero { position: relative; color: var(--paper); }
.hero-media {
  position: relative;
  height: 78vh;
  min-height: 460px;
  overflow: hidden;
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26,21,18,0.35) 0%, rgba(26,21,18,0.72) 100%);
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}
.hero-copy {
  position: absolute;
  left: 50%;
  bottom: 56px;
  transform: translateX(-50%);
  width: 100%;
}
.hero-copy .eyebrow { color: #e7cba8; }
.hero h1 { font-size: clamp(2.2rem, 5.5vw, 4rem); margin-bottom: 0.4em; }
.hero .lead { max-width: 44ch; font-size: 1.05rem; margin-bottom: 1.6em; }

/* Sections */
.section { padding: 88px 0; }
.section h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); max-width: 20ch; }

/* Over */
.over { background: var(--paper-dim); }
.over-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.over-copy p { color: #3a332c; }
.over-media img { border-radius: 3px; }
.over-media-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

/* Projects */
.projecten > .wrap:first-child { margin-bottom: 48px; }
.project {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
  padding: 48px 24px;
}
.project--reverse { direction: rtl; }
.project--reverse > * { direction: ltr; }
.project-media img { border-radius: 3px; cursor: zoom-in; }
.project-media--pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.project-media-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}
.project h3 { font-size: 1.8rem; }
.material {
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--oak-dark);
  font-size: 0.85rem;
  margin: 0 0 0.9em;
}
.project-copy p:last-child { color: #3a332c; }

/* Klussen */
.klussen { background: var(--paper-dim); }
.klussen-intro { max-width: 66ch; color: #3a332c; margin-bottom: 40px; }
.klussen-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.klussen-grid figure { margin: 0; }
.klussen-grid img {
  border-radius: 3px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  cursor: zoom-in;
}
.klussen-grid figcaption {
  margin-top: 8px;
  font-size: 0.85rem;
  color: #6b6255;
}

/* Contact */
.contact { background: var(--ink); color: var(--paper); text-align: center; }
.contact-logo { height: 70px; width: auto; margin: 0 auto 28px; filter: invert(1); }
.contact h2 { max-width: none; }
.contact p { max-width: 46ch; margin: 0 auto 28px; color: #cfc6b8; }

/* Footer */
.site-footer {
  padding: 24px 0;
  font-size: 0.85rem;
  color: #6b6255;
  border-top: 1px solid var(--line);
  text-align: center;
}
.site-footer .wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.footer-credit a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.footer-credit a:hover { color: var(--oak-dark); }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 8, 6, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 40px;
}
.lightbox[hidden] { display: none; }
.lightbox img { max-height: 90vh; max-width: 90vw; border-radius: 2px; }
.lightbox-close {
  position: absolute;
  top: 20px;
  right: 28px;
  background: none;
  border: none;
  color: var(--paper);
  font-size: 2.4rem;
  line-height: 1;
  cursor: pointer;
}

/* Responsive */
@media (max-width: 860px) {
  .site-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    display: none;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 16px 24px; border-bottom: 1px solid var(--line); }
  .nav-toggle { display: flex; }

  .over-grid { grid-template-columns: 1fr; }
  .project, .project--reverse { grid-template-columns: 1fr; direction: ltr; padding: 32px 0; }
  .klussen-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .hero-media { height: 86vh; }
  .klussen-grid { grid-template-columns: 1fr 1fr; }
}