:root {
  --paper: #F8F6F1;
  --paper-deep: #EFEAE0;
  --ink: #1A1A1A;
  --ink-soft: #4A4A46;
  --sage: #A8B59C;
  --sage-deep: #6B7C5D;
  --clay: #C67E5A;
  --clay-deep: #A8653F;
  --mute: #9A968B;
  --line: rgba(26,26,26,0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  font-weight: 350;
}

.display {
  font-family: 'Instrument Serif', Georgia, serif;
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.015em;
}

.italic { font-style: italic; }

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

/* layout */
.frame {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 48px;
}

/* header */
header.site {
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(248,246,241,0.92);
  backdrop-filter: blur(8px);
  z-index: 50;
}
header.site .row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header.site .mark {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-size: 1.35rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}
header.site nav {
  display: flex;
  gap: 36px;
}
header.site nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.93rem;
  letter-spacing: 0.01em;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
header.site nav a:hover, header.site nav a.active {
  color: var(--ink);
  border-color: var(--ink);
}

/* hero */
.hero {
  padding: 80px 0 100px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
  min-height: 75vh;
}
.hero .eyebrow {
  font-size: 0.74rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 36px;
}
.hero h1 {
  font-size: clamp(3.4rem, 8vw, 6.8rem);
  margin-bottom: 36px;
  max-width: 13ch;
}
.hero h1 em { color: var(--sage-deep); font-style: italic; }
.hero .lede {
  font-size: 1.18rem;
  max-width: 40ch;
  color: var(--ink-soft);
  margin-bottom: 40px;
  line-height: 1.55;
}
.hero .photo {
  aspect-ratio: 4/5;
  position: relative;
  overflow: hidden;
  background: var(--paper-deep);
}
.hero .photo img {
  width: 100%; height: 100%;
  object-fit: cover;
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 15px 28px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 450;
  text-decoration: none;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: all 0.25s ease;
}
.btn .arr { transition: transform 0.25s; }
.btn:hover { background: var(--sage-deep); border-color: var(--sage-deep); }
.btn:hover .arr { transform: translateX(5px); }

.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--paper); }

.btn.link {
  background: transparent;
  color: var(--ink);
  border: none;
  padding: 4px 0;
  border-bottom: 1px solid var(--ink);
}
.btn.link:hover { background: transparent; color: var(--clay); border-color: var(--clay); }

/* sections */
section { padding: 100px 0; border-bottom: 1px solid var(--line); }
section.no-border { border-bottom: none; }

.section-label {
  display: flex;
  gap: 16px;
  align-items: baseline;
  margin-bottom: 52px;
}
.section-label .n {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  color: var(--clay);
  font-size: 1rem;
}
.section-label .t {
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.section-label .r { flex: 1; height: 1px; background: var(--line); }

.section-intro {
  max-width: 48ch;
  margin-bottom: 60px;
}
.section-intro h2 {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.05;
  margin-bottom: 24px;
}
.section-intro h2 em { color: var(--clay); font-style: italic; }
.section-intro p {
  font-size: 1.1rem;
  color: var(--ink-soft);
  line-height: 1.6;
}

/* offer cards */
.offer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.offer {
  background: var(--paper-deep);
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  transition: transform 0.35s cubic-bezier(0.2,0.8,0.2,1);
  position: relative;
}
.offer:hover { transform: translateY(-4px); }
.offer .img {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--sage);
}
.offer .img img { width: 100%; height: 100%; object-fit: cover; }
.offer .body {
  padding: 28px 28px 32px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.offer .pretitle {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 16px;
}
.offer h3 {
  font-family: 'Instrument Serif', serif;
  font-size: 1.9rem;
  line-height: 1.1;
  margin-bottom: 14px;
  font-weight: 400;
}
.offer h3 em { font-style: italic; color: var(--sage-deep); }
.offer p {
  color: var(--ink-soft);
  font-size: 0.98rem;
  margin-bottom: 24px;
  flex: 1;
}
.offer .more {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-size: 1rem;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.offer .more .arr { transition: transform 0.25s; }
.offer:hover .more .arr { transform: translateX(5px); }
.offer:hover .more { color: var(--clay); }

/* text-photo split */
.split {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: center;
}
.split.reverse { grid-template-columns: 1.1fr 1fr; }
.split .photo {
  aspect-ratio: 4/5;
  overflow: hidden;
  background: var(--sage);
}
.split.reverse .photo { order: 2; }
.split .photo img { width: 100%; height: 100%; object-fit: cover; }
.split .text h2 {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  line-height: 1.05;
  margin-bottom: 28px;
  max-width: 15ch;
}
.split .text h2 em { color: var(--clay); font-style: italic; }
.split .text p {
  color: var(--ink-soft);
  font-size: 1.08rem;
  margin-bottom: 20px;
  max-width: 46ch;
  line-height: 1.7;
}
.split .text .btn { margin-top: 20px; }

/* quote */
.quote-section {
  background: var(--paper-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.quote {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}
.quote .mark {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-size: 4rem;
  color: var(--clay);
  line-height: 1;
  margin-bottom: 24px;
}
.quote blockquote {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  line-height: 1.3;
  font-weight: 400;
  margin-bottom: 32px;
  letter-spacing: -0.005em;
}
.quote cite {
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
  font-style: normal;
}

/* offer detail (aanbod page) */
.offer-detail {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
  padding: 80px 0;
  border-bottom: 1px solid var(--line);
}
.offer-detail.reverse { grid-template-columns: 1.2fr 1fr; }
.offer-detail.reverse .photo { order: 2; }
.offer-detail .photo {
  aspect-ratio: 4/5;
  overflow: hidden;
  position: sticky;
  top: 120px;
}
.offer-detail .photo img { width: 100%; height: 100%; object-fit: cover; }
.offer-detail .num {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--clay);
  margin-bottom: 20px;
}
.offer-detail h2 {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  line-height: 1.05;
  margin-bottom: 16px;
  max-width: 14ch;
}
.offer-detail h2 em { color: var(--sage-deep); font-style: italic; }
.offer-detail .audience {
  font-size: 0.9rem;
  color: var(--mute);
  margin-bottom: 32px;
  font-style: italic;
  font-family: 'Instrument Serif', serif;
}
.offer-detail p {
  color: var(--ink-soft);
  font-size: 1.08rem;
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 48ch;
}
.offer-detail .meta {
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 480px;
}
.offer-detail .meta .key {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 8px;
}
.offer-detail .meta .val {
  font-family: 'Instrument Serif', serif;
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--ink);
}
.offer-detail .cta { margin-top: 40px; }

/* contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.contact-info .item {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.contact-info .item:last-child { border: none; }
.contact-info .key {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 6px;
}
.contact-info .val {
  font-family: 'Instrument Serif', serif;
  font-size: 1.4rem;
}
.contact-info .val a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--line); }
.contact-info .val a:hover { color: var(--clay); border-color: var(--clay); }

form.contact {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
form.contact label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
form.contact input, form.contact textarea {
  padding: 14px 16px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 1rem;
  color: var(--ink);
  background: var(--paper-deep);
  border: 1px solid var(--line);
  border-radius: 0;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
  text-transform: none;
  letter-spacing: normal;
}
form.contact input:focus, form.contact textarea:focus {
  border-color: var(--sage-deep);
  background: var(--paper);
}
form.contact textarea { resize: vertical; min-height: 140px; }
form.contact button {
  margin-top: 8px;
  align-self: flex-start;
}

/* footer */
footer.site {
  padding: 80px 0 60px;
  background: var(--paper-deep);
  border-top: 1px solid var(--line);
}
footer.site .row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}
footer.site .brand {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-size: 1.8rem;
  margin-bottom: 16px;
}
footer.site .brand-sub {
  color: var(--ink-soft);
  font-size: 0.98rem;
  max-width: 28ch;
  line-height: 1.55;
}
footer.site .col h4 {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 16px;
  font-weight: 500;
}
footer.site .col a {
  display: block;
  color: var(--ink);
  text-decoration: none;
  padding: 4px 0;
  font-size: 0.95rem;
}
footer.site .col a:hover { color: var(--clay); }
footer.site .bottom {
  padding-top: 28px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--mute);
}

/* style switcher button */
.style-switch {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  padding: 10px 18px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 450;
  letter-spacing: 0.04em;
  cursor: pointer;
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.3);
  transition: background 0.25s, border-color 0.25s;
}
.style-switch:hover { background: var(--sage-deep); border-color: var(--sage-deep); }

/* animations */
section { opacity: 0; transform: translateY(16px); animation: up 0.8s ease forwards; }
section:nth-of-type(1) { animation-delay: 0.05s; }
section:nth-of-type(2) { animation-delay: 0.1s; }
section:nth-of-type(3) { animation-delay: 0.15s; }
section:nth-of-type(4) { animation-delay: 0.2s; }
section:nth-of-type(5) { animation-delay: 0.25s; }
@keyframes up { to { opacity: 1; transform: translateY(0); } }

/* hamburger */
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--ink);
  font-family: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.menu-toggle .bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  vertical-align: middle;
  margin-right: 10px;
}
.menu-toggle .bars span {
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.25s, opacity 0.25s;
}
.menu-toggle[aria-expanded="true"] .bars span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .bars span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] .bars span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* mobile */
@media (max-width: 900px) {
  .frame { padding: 0 24px; }
  header.site nav { gap: 24px; }
  header.site nav a { font-size: 0.88rem; }
  .hero { grid-template-columns: 1fr; gap: 40px; min-height: auto; padding: 60px 0 80px; }
  .hero h1 { font-size: 3.4rem; }
  .hero .photo { aspect-ratio: 4/5; }
  .offer-grid { grid-template-columns: 1fr; gap: 20px; }
  .split, .split.reverse { grid-template-columns: 1fr; gap: 40px; }
  .split.reverse .photo { order: 0; }
  section { padding: 70px 0; }
  .offer-detail, .offer-detail.reverse { grid-template-columns: 1fr; gap: 40px; }
  .offer-detail .photo { position: static; aspect-ratio: 4/5; }
  .offer-detail.reverse .photo { order: 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  footer.site .row { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .menu-toggle { display: inline-flex; align-items: center; }
  header.site nav { display: none; }
  header.site nav.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--paper); padding: 24px 24px 28px; border-bottom: 1px solid var(--line); gap: 16px; }
  header.site nav.open a { font-size: 1rem; padding: 8px 0; }
  footer.site .row { grid-template-columns: 1fr; }
  footer.site .bottom { flex-direction: column; gap: 8px; }
  .offer-detail .meta { grid-template-columns: 1fr; }
}