:root {
  --zwart: #141414;
  --zwart-soft: #2e2e2e;
  --wit: #fafafa;
  --grey: #6b6b6b;
  --line: #e4e4e4;
  --radius: 14px;
  --radius-sm: 999px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 14px rgba(0, 0, 0, 0.05);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  color: var(--zwart);
  background: var(--wit);
  line-height: 1.7;
}

/* Sticky navigation */
.topnav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
  background: rgba(250, 250, 250, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.wordmark {
  display: inline-flex;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  line-height: 1;
  text-decoration: none;
  color: var(--zwart);
}
.wordmark .z,
.wordmark .w {
  display: flex;
  align-items: center;
}
.wordmark .z {
  background: linear-gradient(120deg, var(--zwart) 30%, var(--zwart-soft));
  color: var(--wit);
  padding: 0.32rem 0.45rem;
  border-radius: 6px;
  margin-right: 0.14rem;
}
.topnav .links a {
  color: var(--zwart);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-left: 1.25rem;
  padding-bottom: 0.2rem;
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s;
}
.topnav .links a:hover { border-bottom-color: var(--zwart); }

/* Hero */
.hero {
  min-height: 72vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 1.5rem;
  background: linear-gradient(160deg, var(--wit) 55%, #ececec);
}
.hero h1 {
  font-size: clamp(3rem, 10vw, 6.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}
.hero h1 .z {
  display: inline-flex;
  align-items: center;
  background: linear-gradient(120deg, var(--zwart) 30%, var(--zwart-soft));
  color: var(--wit);
  padding: 0.1em 0.18em;
  border-radius: 0.12em;
  margin-right: 0.08em;
}
.hero .tagline {
  margin-top: 1.5rem;
  font-size: clamp(1.15rem, 2.5vw, 1.5rem);
  font-weight: 300;
  color: #3a3a3a;
  max-width: 34rem;
  margin-left: auto;
  margin-right: auto;
}
.hero .cta {
  display: inline-block;
  margin-top: 2.5rem;
  padding: 0.8rem 2rem;
  background: var(--zwart);
  color: var(--wit);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border-radius: var(--radius-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.hero .cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* Sections */
section {
  padding: 6rem 1.5rem;
}
section .inner {
  max-width: 52rem;
  margin: 0 auto;
}
section.alt { background: #f1f1f1; }

.kicker {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--grey);
}
section h2 {
  font-size: clamp(1.8rem, 4.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 0.5rem 0 1.5rem;
}
.lead {
  font-size: 1.15rem;
}
p + p { margin-top: 1rem; }

/* Numbered principles */
.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}
.principle .num {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #cfcfcf;
  line-height: 1;
}
.principle h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0.6rem 0 0.3rem;
}
.principle p { font-size: 0.95rem; color: #444; }

/* Project cards */
.projects {
  display: grid;
  gap: 1.75rem;
  margin-top: 3rem;
}
.project {
  display: flex;
  gap: 1.75rem;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  transition: transform 0.2s, box-shadow 0.2s;
}
.project:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.1);
}
.project .mark {
  flex: 0 0 4.2rem;
  width: 4.2rem;
  height: 4.2rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--zwart) 30%, var(--zwart-soft));
  color: var(--wit);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 800;
}
.project.retired .mark {
  background: #e6e6e6;
  color: var(--grey);
}
.project .body { flex: 1; }
.project .shot {
  flex: 0 0 220px;
  width: 220px;
  height: 160px;
  object-fit: cover;
  object-position: top;
  border-radius: 10px;
  border: 1px solid var(--line);
}
.project h3 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}
.project h3 a { text-decoration: none; }
.project h3 a:hover { text-decoration: underline; }
.project .body p { margin-top: 0.5rem; color: #333; }
.project .meta {
  margin-top: 0.8rem;
  font-size: 0.85rem;
  color: var(--grey);
}

.badge {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.15rem 0.65rem;
  border: 1px solid currentColor;
  border-radius: var(--radius-sm);
}
.badge.live { background: var(--zwart); color: var(--wit); border-color: var(--zwart); }
.badge.retired { color: var(--grey); }

/* Company facts */
.facts {
  list-style: none;
  margin-top: 2.5rem;
  border-top: 1px solid var(--line);
}
.facts li {
  display: flex;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.facts .label {
  flex: 0 0 11rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--grey);
  padding-top: 0.2rem;
}

/* Contact */
#contact {
  background: linear-gradient(120deg, var(--zwart) 30%, var(--zwart-soft));
  color: var(--wit);
  text-align: center;
}
#contact .kicker { color: #9a9a9a; }
#contact .lead {
  max-width: 38rem;
  margin-left: auto;
  margin-right: auto;
  color: #cfcfcf;
}
#contact .cta {
  display: inline-block;
  margin-top: 2.5rem;
  padding: 0.8rem 2.2rem;
  background: var(--wit);
  color: var(--zwart);
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
#contact .cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

a { color: inherit; }

footer {
  background: var(--zwart);
  color: #9a9a9a;
  padding: 2.5rem 1.5rem;
  text-align: center;
  font-size: 0.85rem;
}
footer .kvk { margin-top: 0.4rem; }
footer nav { margin-bottom: 1rem; }
footer nav a {
  color: var(--wit);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0.75rem;
}
footer nav a:hover { text-decoration: underline; }

@media (max-width: 640px) {
  .topnav .links a { margin-left: 0.8rem; font-size: 0.78rem; }
  .hero { min-height: 60vh; padding: 4rem 1.25rem; }
  section { padding: 4rem 1.25rem; }
  .principles { grid-template-columns: 1fr; gap: 2rem; }
  .project { flex-direction: column; gap: 1rem; }
  .project .shot { width: 100%; flex-basis: auto; height: 180px; }
  .facts .label { flex-basis: 100%; }
}