/* =========================================================================
   Olaf Minten Architectuur — shared stylesheet
   Light "blueprint paper" aesthetic · terracotta accent · Inter
   ========================================================================= */

:root {
  --bg: #f4f1ea;
  --bg-soft: #ece7dd;
  --surface: #fbf9f5;
  --ink: #17150f;
  --ink-2: #3a352d;
  --muted: #7c766a;
  --line: rgba(23, 21, 15, 0.14);
  --line-soft: rgba(23, 21, 15, 0.08);
  --line-strong: rgba(23, 21, 15, 0.28);
  --accent: #b5613a;
  --accent-dark: #984c2b;
  --accent-tint: rgba(181, 97, 58, 0.10);
  --dark: #16130e;
  --footer-bg: #17140f;
  --footer-ink: #e9e4da;
  --radius: 4px;
  --radius-lg: 8px;
  --shadow: 0 24px 60px -32px rgba(23, 21, 15, 0.45);
  --wrap: 1200px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ------------------------------- reset --------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-2);
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(23, 21, 15, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 21, 15, 0.028) 1px, transparent 1px);
  background-size: 88px 88px;
  background-position: -1px -1px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

::selection { background: var(--accent); color: #fff; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 0.75rem 1.15rem;
  background: var(--ink);
  color: #fff;
  border-radius: 0 0 var(--radius) 0;
  font-size: 0.85rem;
}
.skip-link:focus { left: 0; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 32px;
}

/* ------------------------------ typography ----------------------------- */
h1 { font-size: clamp(2.2rem, 5.2vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.7rem); }
h3 { font-size: 1.12rem; letter-spacing: -0.01em; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1.1rem;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow .dot { color: var(--accent); }

.lead {
  font-size: 1.06rem;
  color: var(--muted);
  max-width: 54ch;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.text-link:hover { color: var(--accent); border-color: var(--accent); }
.text-link span { transition: transform 0.25s var(--ease); }
.text-link:hover span { transform: translateX(4px); }

/* ------------------------------- buttons ------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.82rem 1.4rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease),
              color 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.btn span { transition: transform 0.25s var(--ease); }
.btn:hover span { transform: translateX(4px); }

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 14px 30px -18px rgba(181, 97, 58, 0.9);
}
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-outline:hover { border-color: var(--ink); background: var(--ink); color: #fff; transform: translateY(-2px); }

.btn-lg { padding: 1rem 1.7rem; font-size: 1rem; }

/* ------------------------------- header -------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 241, 234, 0.86);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line-soft);
  transition: box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}
.site-header.is-scrolled {
  box-shadow: 0 12px 30px -24px rgba(23, 21, 15, 0.6);
  background: rgba(244, 241, 234, 0.95);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 84px;
}

.brand { display: flex; flex-direction: column; gap: 0.15rem; }
.brand-name {
  font-size: 1.24rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
}
.brand-name em { font-style: normal; font-weight: 400; }
.brand-tag {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.005em;
}

.main-nav { display: flex; align-items: center; gap: 2rem; }
.main-nav ul { display: flex; align-items: center; gap: 1.7rem; }

.nav-link {
  position: relative;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink-2);
  padding: 0.25rem 0;
  transition: color 0.2s var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav-link:hover { color: var(--ink); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-cta { padding: 0.62rem 1.1rem; font-size: 0.86rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 11px 9px;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ------------------------------- sections ------------------------------ */
.section { padding: clamp(64px, 8vw, 116px) 0; position: relative; }
.section-head { max-width: 780px; margin-bottom: clamp(2rem, 4vw, 3.4rem); }
.section-head h2 { margin-bottom: 1rem; }

/* -------------------------------- hero --------------------------------- */
.hero { padding-top: clamp(48px, 6vw, 84px); }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.hero-copy h1 { margin-bottom: 1.2rem; }
.hero-copy .lead { margin-bottom: 2rem; }
.hero-actions { display: flex; align-items: center; gap: 1.6rem; flex-wrap: wrap; }

.hero-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 616 / 431;
}
.hero-media img { width: 100%; height: 100%; object-fit: cover; }

.statbar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(3rem, 6vw, 5rem);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.statbar li {
  padding: 1.5rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  border-left: 1px solid var(--line);
}
.statbar li:first-child { border-left: 0; padding-left: 0; }
.statbar strong { font-size: 1.7rem; font-weight: 800; color: var(--ink); letter-spacing: -0.02em; }
.statbar span { font-size: 0.8rem; color: var(--muted); letter-spacing: 0.01em; }

/* ------------------------------ werkwijze ------------------------------ */
.process { border-top: 1px solid var(--line-soft); }

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.6rem 2rem;
  counter-reset: step;
}
.step { position: relative; padding-top: 1.7rem; }
.step::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 0;
  right: -2rem;
  height: 1px;
  background: var(--line);
}
.step::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}
.step:nth-child(4n)::before { right: 0; }
.step-num {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.7rem;
}
.step h3 { margin-bottom: 0.6rem; }
.step p { font-size: 0.92rem; color: var(--muted); }

/* ------------------------------ projecten ------------------------------ */
.projects { border-top: 1px solid var(--line-soft); }

.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.6rem;
}
.project {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--line-soft);
  box-shadow: 0 20px 44px -34px rgba(23, 21, 15, 0.55);
}
.project img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}
.project:hover img { transform: scale(1.05); }

.project-meta {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas: "title arrow" "sub arrow";
  align-items: center;
  gap: 0.1rem 1rem;
  padding: 1rem 1.2rem;
  color: #fff;
  background: linear-gradient(to top, rgba(18, 16, 11, 0.82), rgba(18, 16, 11, 0));
  backdrop-filter: blur(2px);
}
.project-title { grid-area: title; font-weight: 600; font-size: 1.02rem; }
.project-sub { grid-area: sub; font-size: 0.78rem; color: rgba(255, 255, 255, 0.78); }
.project-year { display: none; }
.project-arrow {
  grid-area: arrow;
  font-size: 1.15rem;
  transition: transform 0.35s var(--ease);
}
.project:hover .project-arrow { transform: translateX(5px); }

/* ------------------------------- journal ------------------------------- */
.journal { border-top: 1px solid var(--line-soft); }
.journal-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: clamp(2rem, 4vw, 3.2rem);
}
.journal-head h2 { margin-top: 0.2rem; }

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.6rem;
}
.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: 0 24px 46px -34px rgba(23, 21, 15, 0.6); }
.card-thumb { overflow: hidden; }
.card-thumb img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}
.card:hover .card-thumb img { transform: scale(1.06); }
.card-body { padding: 1.2rem 1.25rem 1.4rem; display: flex; flex-direction: column; gap: 0.55rem; flex: 1; }
.card-kicker {
  margin: 0;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}
.card-body h3 { font-size: 1.02rem; }
.card-desc { font-size: 0.9rem; color: var(--muted); }
.card-foot {
  margin: auto 0 0;
  padding-top: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--muted);
  border-top: 1px solid var(--line-soft);
}
.card-foot .text-link { font-size: 0.82rem; }

/* --------------------------- text + image ------------------------------ */
.text-image {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.6rem);
  align-items: center;
}
.text-image.reverse .ti-copy { order: 1; }
.text-image.reverse .ti-media { order: 2; }

.ti-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 4 / 3;
}
.ti-media img { width: 100%; height: 100%; object-fit: cover; }
.ti-media.portrait { aspect-ratio: 4 / 5; }

.ti-copy h2 { margin-bottom: 1.1rem; }
.ti-copy p { color: var(--muted); max-width: 52ch; }
.ti-copy .btn { margin-top: 1.4rem; }
.ti-role {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.1rem;
}
.signature-block {
  margin-top: 1.8rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.signature {
  font-size: 1.5rem;
  font-style: italic;
  font-weight: 500;
  color: var(--ink);
}
.signature-sub { font-size: 0.8rem; color: var(--muted); }

.expertise,
.bureau { border-top: 1px solid var(--line-soft); }

/* --------------------------------- faq --------------------------------- */
.faq { border-top: 1px solid var(--line-soft); }
.faq-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2rem, 5vw, 4.6rem);
  align-items: start;
}
.faq-intro h2 { margin-bottom: 1rem; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 1.25rem 2.5rem 1.25rem 0;
  font-size: 1.04rem;
  font-weight: 600;
  color: var(--ink);
  transition: color 0.2s var(--ease);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0.2rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--accent);
  transition: transform 0.3s var(--ease);
}
.faq-item[open] summary { color: var(--accent); }
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-item summary:hover { color: var(--accent); }
.faq-item p {
  padding: 0 2.5rem 1.4rem 0;
  color: var(--muted);
  font-size: 0.95rem;
}
.faq-item[open] p { animation: faqIn 0.35s var(--ease); }
@keyframes faqIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

/* -------------------------------- cta ---------------------------------- */
.cta-band { background: var(--dark); color: var(--footer-ink); }
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 88px 88px;
  pointer-events: none;
}
.cta-inner {
  position: relative;
  max-width: 760px;
  text-align: center;
  margin-inline: auto;
}
.cta-inner h2 { color: #fff; margin-bottom: 1rem; }
.cta-inner p { color: rgba(233, 228, 218, 0.72); font-size: 1.05rem; margin-bottom: 2rem; }

/* -------------------------------- contact ------------------------------ */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4.6rem);
  align-items: start;
}
.contact-copy h2 { margin-bottom: 1rem; }
.contact-details {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
}
.contact-details li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.94rem;
}
.contact-details span {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 0.2rem;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem 1.2rem;
  padding: clamp(1.6rem, 3vw, 2.4rem);
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 60px -46px rgba(23, 21, 15, 0.6);
}
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.field input,
.field select,
.field textarea {
  font-family: inherit;
  font-size: 0.96rem;
  color: var(--ink);
  padding: 0.75rem 0.85rem;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.field textarea { resize: vertical; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}
.contact-form .btn { grid-column: 1 / -1; justify-content: center; }
.form-note {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
}

/* -------------------------------- footer ------------------------------- */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-ink);
  padding-top: clamp(3rem, 6vw, 5rem);
}
.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: clamp(2rem, 5vw, 5rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.footer-brand .brand-name { color: #fff; font-size: 1.35rem; }
.footer-brand p { margin-top: 0.9rem; color: rgba(233, 228, 218, 0.6); font-size: 0.9rem; max-width: 32ch; }

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.footer-nav h4 {
  color: #fff;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
}
.footer-nav ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-nav .nav-link { color: rgba(233, 228, 218, 0.72); font-size: 0.9rem; }
.footer-nav .nav-link::after { background: var(--accent); }
.footer-nav .nav-link:hover { color: #fff; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.6rem 32px 2rem;
  flex-wrap: wrap;
}
.footer-bottom p { margin: 0; font-size: 0.82rem; color: rgba(233, 228, 218, 0.5); }

/* ------------------------------ reveal --------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ----------------------------- responsive ------------------------------ */
@media (max-width: 1024px) {
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step:nth-child(4n)::before { right: -2rem; }
  .step:nth-child(2n)::before { right: 0; }
  .cards { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .wrap { padding-inline: 22px; }
  .header-inner { min-height: 72px; }

  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    inset: 72px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 1.2rem;
    padding: 1.6rem 22px 2rem;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 30px 50px -30px rgba(23, 21, 15, 0.5);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  }
  .main-nav.is-open { opacity: 1; transform: none; pointer-events: auto; }
  .main-nav ul { flex-direction: column; align-items: flex-start; gap: 0.35rem; }
  .main-nav ul li { width: 100%; }
  .main-nav .nav-link { display: block; padding: 0.7rem 0; font-size: 1.05rem; }
  .nav-cta { align-self: flex-start; }

  .hero-grid { grid-template-columns: 1fr; }
  .hero-media { order: -1; }
  .statbar { grid-template-columns: repeat(2, 1fr); }
  .statbar li:nth-child(odd) { border-left: 0; padding-left: 0; }

  .gallery { grid-template-columns: 1fr; }
  .text-image,
  .text-image.reverse { grid-template-columns: 1fr; }
  .text-image.reverse .ti-copy { order: 0; }
  .text-image.reverse .ti-media { order: 0; }
  .faq-grid { grid-template-columns: 1fr; }

  .contact-grid { grid-template-columns: 1fr; }
  .contact-form { grid-template-columns: 1fr; }

  .footer-top { grid-template-columns: 1fr; }
  .footer-nav { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .brand-tag { display: none; }
  .cards { grid-template-columns: 1fr; }
  .statbar { grid-template-columns: 1fr; }
  .statbar li { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); }
  .statbar li:first-child { border-top: 0; }
  .journal-head { flex-direction: column; align-items: flex-start; }
  .footer-nav { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}