/* ════════════════════════════════════════════════════════════════
   GEOCHAIN — verkooppagina · "de site als adviesrapport"
   Papierwit + inkt + inktblauw accent (OKLCH). Revisie-rood alleen
   als track-changes-markering in artefacten.
   Typografie: Barlow / Barlow Semi Condensed / Fragment Mono.
   ════════════════════════════════════════════════════════════════ */

/* ── Tokens ──────────────────────────────────────────────────── */
:root {
  /* Papier en inkt */
  --papier:        oklch(0.99 0.002 250);
  --papier-diep:   oklch(0.962 0.004 250);
  --inkt:          oklch(0.22 0.012 255);
  --inkt-zacht:    oklch(0.40 0.014 255);
  --lijn:          oklch(0.87 0.006 255);
  --lijn-sterk:    oklch(0.62 0.012 255);

  /* Accent: logo-blauw (#0967BD, ketting en hexagonrand) */
  --accent:        oklch(0.53 0.14 252);
  --accent-diep:   oklch(0.43 0.13 252);
  --accent-licht:  oklch(0.72 0.11 252);
  --accent-vlak:   oklch(0.955 0.014 252);

  /* Logo-oranje (#F77822, trendlijn): wijziging, meting, resultaat */
  --oranje:        oklch(0.71 0.17 48);
  --oranje-inkt:   oklch(0.55 0.15 48);
  --oranje-vlak:   oklch(0.94 0.05 60);

  /* Donker: logo-navy (#001E3D — belofteband, colofon, bronpaneel) */
  --nacht:         oklch(0.25 0.06 250);
  --nacht-2:       oklch(0.30 0.06 250);
  --op-nacht:      oklch(0.965 0.004 250);
  --op-nacht-zacht:oklch(0.76 0.035 250);
  --nacht-lijn:    oklch(0.40 0.06 250);

  /* Semantiek en artefacten */
  --pass:          oklch(0.50 0.11 155);
  --rev-oranje:    var(--oranje-inkt);
  --rev-markering: var(--oranje-vlak);

  /* Grondlagen (gedempt, alleen in doorsnede-figuren) */
  --laag-klei:     oklch(0.85 0.06 70);
  --laag-veen:     oklch(0.76 0.075 115);
  --laag-klei2:    oklch(0.89 0.06 95);
  --laag-zand:     oklch(0.9 0.045 55);

  /* Typografie */
  --font-body: "Barlow", system-ui, sans-serif;
  --font-display: "Barlow Semi Condensed", "Barlow", system-ui, sans-serif;
  --font-mono: "Fragment Mono", ui-monospace, monospace;
  --font-rapport: Georgia, "Times New Roman", serif;

  /* Maat en ritme */
  --wrap: 68rem;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --sectie: clamp(4.5rem, 9vw, 7.5rem);

  /* Z-lagen */
  --z-nap: 30;
  --z-kop: 40;
  --z-menu: 50;
}

/* ── Reset / basis ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--inkt);
  background: var(--papier);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { margin: 0; text-wrap: balance; }
p, dl, ol, ul, figure, table { margin: 0; }

.mono { font-family: var(--font-mono); font-size: 0.86em; letter-spacing: -0.01em; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

.visueel-verborgen {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--inkt); color: var(--op-nacht);
  padding: 0.6rem 1rem; text-decoration: none;
}
.skip-link:focus-visible { left: 0.5rem; top: 0.5rem; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

::selection { background: var(--accent-vlak); }

/* ── Knoppen ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--font-body); font-weight: 600; font-size: 1rem;
  padding: 0.72rem 1.35rem; border: 1px solid transparent; cursor: pointer;
  white-space: nowrap;
  text-decoration: none; transition: background-color 0.18s ease-out, border-color 0.18s ease-out, color 0.18s ease-out;
}
.btn--primary { background: var(--accent); color: var(--op-nacht); }
.btn--primary:hover { background: var(--accent-diep); }
.btn--ghost { border-color: var(--lijn-sterk); color: var(--inkt); background: transparent; }
.btn--ghost:hover { border-color: var(--inkt); }
.btn--sm { padding: 0.5rem 1rem; font-size: 0.94rem; }
.btn--block { width: 100%; }

/* ── NAP-schaallat ───────────────────────────────────────────── */
.nap {
  display: none;
  position: fixed; top: 4.6rem; bottom: 1.4rem; left: 0; width: 4.5rem;
  z-index: var(--z-nap); pointer-events: none;
}
@media (min-width: 1280px) { .nap { display: block; } }
.nap__scale { position: absolute; inset: 0; border-right: 1px solid var(--lijn); }
.nap__tick {
  position: absolute; right: 0; width: 0.55rem; border-top: 1px solid var(--lijn-sterk);
}
.nap__tick--sub { width: 0.32rem; border-top-color: var(--lijn); }
.nap__label {
  position: absolute; right: 0.85rem; transform: translateY(-52%);
  font-family: var(--font-mono); font-size: 0.62rem; color: var(--inkt-zacht);
}
.nap__cursor {
  position: absolute; right: 0; left: 0.6rem; height: 0;
  border-top: 1.5px solid var(--oranje);
}
.nap__readout {
  position: absolute; left: 0.1rem; top: 0.3rem;
  font-size: 0.66rem; color: var(--oranje-inkt);
  background: var(--papier); padding: 0.05rem 0.25rem;
  white-space: nowrap;
}

/* ── Documentkop ─────────────────────────────────────────────── */
.kop {
  position: sticky; top: 0; z-index: var(--z-kop);
  background: var(--papier);
  border-bottom: 1px solid var(--lijn);
}
.kop[data-scrolled="true"] { border-bottom-color: var(--lijn-sterk); }
.kop__inner {
  display: flex; align-items: center; gap: 1.5rem;
  min-height: 3.6rem;
}
.brand { display: flex; align-items: baseline; gap: 0.6rem; text-decoration: none; color: var(--inkt); }
.brand__mark { align-self: center; flex: none; }
.brand__word { font-family: var(--font-display); font-weight: 700; font-size: 1.22rem; letter-spacing: -0.01em; }
.brand__sub {
  font-size: 0.8rem; color: var(--inkt-zacht); white-space: nowrap;
  border-left: 1px solid var(--lijn-sterk); padding-left: 0.6rem;
  display: none;
}
@media (min-width: 1360px) { .brand__sub { display: inline; } }

.kop__links { display: none; gap: 1.4rem; margin-left: auto; }
@media (min-width: 880px) { .kop__links { display: flex; } }
.kop__links a {
  color: var(--inkt-zacht); text-decoration: none; font-size: 0.97rem; font-weight: 500;
  padding-block: 0.35rem;
}
.kop__links a:hover { color: var(--inkt); }
.kop__cta { display: none; }
@media (min-width: 880px) { .kop__cta { display: inline-flex; } }

.kop__toggle {
  margin-left: auto; display: inline-flex; flex-direction: column; gap: 5px;
  background: none; border: 0; padding: 0.6rem; cursor: pointer;
}
@media (min-width: 880px) { .kop__toggle { display: none; } }
.kop__toggle span { width: 22px; height: 2px; background: var(--inkt); transition: transform 0.2s ease-out, opacity 0.2s ease-out; }
.kop[data-menu-open="true"] .kop__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.kop[data-menu-open="true"] .kop__toggle span:nth-child(2) { opacity: 0; }
.kop[data-menu-open="true"] .kop__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.kop__mobiel[hidden] { display: none; }
.kop__mobiel {
  display: flex; flex-direction: column; gap: 0.25rem;
  padding: 0.75rem var(--gutter) 1.25rem;
  border-bottom: 1px solid var(--lijn);
  background: var(--papier);
}
.kop__mobiel a { color: var(--inkt); text-decoration: none; padding: 0.55rem 0; font-weight: 500; }
.kop__mobiel .btn { margin-top: 0.5rem; }

/* ── Hero ────────────────────────────────────────────────────── */
.hero { padding-block: clamp(3rem, 7vw, 5.5rem) clamp(2.5rem, 5vw, 4rem); }
.hero__inner {
  display: grid; gap: clamp(2.5rem, 5vw, 4rem);
  align-items: center;
}
@media (min-width: 1020px) { .hero__inner { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); } }

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 5.6vw, 4.15rem);
  line-height: 1.04;
  letter-spacing: -0.015em;
}
.hero__sub {
  margin-top: 1.4rem; max-width: 34rem;
  font-size: 1.13rem; line-height: 1.65; color: var(--inkt-zacht);
  text-wrap: pretty;
}
.hero__actions { margin-top: 1.9rem; display: flex; flex-wrap: wrap; gap: 0.75rem; }
.hero__norm { margin-top: 2.2rem; font-size: 0.78rem; color: var(--inkt-zacht); }
.hero__norm::before {
  content: ""; display: inline-block;
  width: 1.7rem; height: 3px; background: var(--oranje);
  margin-right: 0.65rem; vertical-align: 0.18em;
}

/* ── Revisiedemo ─────────────────────────────────────────────── */
.revdemo {
  display: grid;
  grid-template-columns: minmax(0, 4fr) auto minmax(0, 6fr);
  gap: clamp(0.6rem, 1.5vw, 1.1rem);
  align-items: stretch;
}
@media (max-width: 560px) {
  .revdemo { grid-template-columns: 1fr; }
  .revdemo__pijl { transform: rotate(90deg); margin-inline: auto; }
}
.revdemo__pijl { align-self: center; color: var(--lijn-sterk); flex: none; }

.revdemo__bron {
  background: var(--nacht); color: var(--op-nacht);
  padding: 1rem 1.1rem 0.9rem;
  display: flex; flex-direction: column;
  font-size: 0.9rem;
}
.revdemo__kop {
  color: var(--op-nacht-zacht); font-size: 0.68rem;
  padding-bottom: 0.7rem; margin-bottom: 0.8rem;
  border-bottom: 1px solid var(--nacht-lijn);
}
.revdemo__data { display: flex; flex-direction: column; gap: 0.7rem; font-size: 0.78rem; }
.revdemo__data div { display: flex; flex-direction: column; gap: 0.1rem; }
.revdemo__data dt { color: var(--op-nacht-zacht); font-weight: 400; font-size: 0.66rem; }
.revdemo__data dd { margin: 0; white-space: nowrap; }
.revdemo__data [data-rev] { transition: background-color 0.5s ease-out, color 0.5s ease-out; padding: 0 0.15rem; }
.revdemo__data [data-rev].is-gewijzigd { background: var(--oranje); color: var(--nacht); }
.revdemo__wijzig {
  margin-top: auto; padding-top: 1rem;
  font-size: 0.66rem; color: var(--oranje);
  opacity: 0; transition: opacity 0.4s ease-out;
}
.revdemo__wijzig.is-actief { opacity: 1; }

.revdemo__rapport { min-width: 0; }
.rapport {
  background: white; color: #1c1c1c;
  border: 1px solid var(--lijn);
  box-shadow: 0 1px 2px oklch(0.22 0.012 255 / 0.07), 0 12px 32px -18px oklch(0.22 0.012 255 / 0.35);
  padding: clamp(0.9rem, 2vw, 1.3rem) clamp(1rem, 2.2vw, 1.5rem);
  font-family: var(--font-rapport);
  font-size: 0.8rem; line-height: 1.5;
}
.rapport__kop { font-weight: 700; font-size: 0.92rem; margin-bottom: 0.55rem; }
.rapport__tekst { margin-bottom: 0.7rem; text-wrap: pretty; }
.rapport__figuur { width: 100%; height: auto; border: 1px solid var(--lijn); margin-bottom: 0.7rem; }
.rapport__maat { font-family: var(--font-mono); font-size: 8.5px; }
.rapport__tabel { width: 100%; border-collapse: collapse; font-size: 0.72rem; }
.rapport__tabel th, .rapport__tabel td {
  text-align: left; padding: 0.28rem 0.45rem;
  border-bottom: 1px solid var(--lijn);
}
.rapport__tabel thead th { border-bottom: 1.5px solid var(--inkt); font-size: 0.66rem; }
.rapport__tabel .mono { font-size: 0.66rem; }
.rapport__stempel { margin-top: 0.6rem; font-size: 0.62rem; color: var(--inkt-zacht); text-align: right; }

mark.rev { background: transparent; color: inherit; transition: background-color 0.5s ease-out; padding: 0 0.1rem; }
mark.rev.is-gewijzigd { background: var(--rev-markering); }
.rev-ontgraving { transition: height 0.9s cubic-bezier(0.22,1,0.36,1); }
[data-rev-bodemgroep] { transition: transform 0.9s cubic-bezier(0.22,1,0.36,1); }

.revdemo__onderschrift {
  grid-column: 1 / -1;
  font-size: 0.72rem; color: var(--inkt-zacht);
  padding-top: 0.4rem;
}

@media (prefers-reduced-motion: reduce) {
  .revdemo [data-rev], mark.rev, .rev-ontgraving, [data-rev-bodemgroep] { transition: none; }
}

/* ── Inhoudsopgave ───────────────────────────────────────────── */
.inhoud {
  padding-block: clamp(2.5rem, 5vw, 4rem);
  border-top: 1px solid var(--lijn);
}
.inhoud__titel {
  font-family: var(--font-display); font-weight: 600; font-size: 1.05rem;
  letter-spacing: 0.01em; margin-bottom: 1.2rem;
}
.inhoud__titel::before {
  content: ""; display: inline-block;
  width: 1.7rem; height: 3px; background: var(--oranje);
  margin-right: 0.65rem; vertical-align: 0.22em;
}
.inhoud__lijst {
  list-style: none; padding: 0;
  max-width: 44rem;
  display: flex; flex-direction: column;
}
.inhoud__lijst a {
  display: flex; align-items: baseline; gap: 0.8rem;
  text-decoration: none; color: var(--inkt);
  padding-block: 0.42rem;
  font-size: 1rem;
}
.inhoud__lijst li + li a { border-top: 1px solid var(--lijn); }
.inhoud__nr { color: var(--accent); font-size: 0.8rem; min-width: 1.1rem; }
.inhoud__naam { font-weight: 500; }
.inhoud__lijst a:hover .inhoud__naam { color: var(--accent); }
.inhoud__leider {
  flex: 1; border-bottom: 1px dotted var(--lijn-sterk);
  transform: translateY(-0.28em); min-width: 2rem;
}
.inhoud__diepte { font-size: 0.72rem; color: var(--inkt-zacht); }

/* ── Hoofdstukken ────────────────────────────────────────────── */
.hfdst { padding-block: var(--sectie) 0; }
.hfdst__titel {
  display: flex; align-items: baseline; gap: 1rem;
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.7rem, 3.2vw, 2.35rem);
  letter-spacing: -0.01em;
  padding-bottom: 0.9rem; border-bottom: 2px solid var(--inkt);
}
.hfdst__nr { color: var(--accent); font-size: 0.62em; }
.hfdst__body { padding-top: clamp(1.6rem, 3vw, 2.4rem); }

.prosa { max-width: 44rem; text-wrap: pretty; }
.prosa + .prosa { margin-top: 1rem; }
.prosa--noot { margin-top: 1.4rem; color: var(--inkt-zacht); font-size: 0.97rem; }

/* ── 1 · Feiten (aanleiding) ─────────────────────────────────── */
.feiten { margin-block: 2.2rem; }
.feiten__rij {
  display: grid; gap: 0.4rem 3rem;
  padding-block: 1.15rem;
  border-top: 1px solid var(--lijn);
}
.feiten__rij:last-child { border-bottom: 1px solid var(--lijn); }
@media (min-width: 760px) { .feiten__rij { grid-template-columns: 15rem 1fr; } }
.feiten__rij dt { font-weight: 500; color: var(--inkt-zacht); }
.feiten__cijfer {
  display: block;
  font-family: var(--font-display); font-weight: 700;
  font-size: 1.5rem; color: var(--inkt); letter-spacing: -0.01em;
}
.feiten__rij dd { margin: 0; max-width: 40rem; text-wrap: pretty; }

/* ── 2 · Stappen ─────────────────────────────────────────────── */
.stappen {
  list-style: none; padding: 0;
  margin-block: 2.2rem 2.8rem;
  display: grid; gap: 1.5rem;
}
@media (min-width: 760px) { .stappen { grid-template-columns: repeat(3, 1fr); gap: 2.5rem; } }
.stappen__stap { border-top: 2px solid var(--inkt); padding-top: 0.9rem; }
.stappen__nr { color: var(--oranje-inkt); font-size: 0.8rem; }
.stappen__stap h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.18rem; margin: 0.4rem 0 0.5rem; }
.stappen__stap p { color: var(--inkt-zacht); font-size: 0.99rem; text-wrap: pretty; }

.scherm { border: 1px solid var(--lijn-sterk); background: white; }
.scherm__balk {
  display: flex; align-items: center; gap: 0.7rem;
  padding: 0.5rem 0.9rem;
  border-bottom: 1px solid var(--lijn);
  font-size: 0.7rem; color: var(--inkt-zacht);
}
.scherm__knoppen { display: inline-flex; gap: 5px; }
.scherm__knoppen i { width: 8px; height: 8px; border-radius: 50%; background: var(--lijn-sterk); }
.scherm__onderschrift {
  padding: 0.85rem 0.95rem;
  border-top: 1px solid var(--lijn);
  font-size: 0.92rem; color: var(--inkt-zacht);
  text-wrap: pretty;
}

/* ── 3 · Toetsing ────────────────────────────────────────────── */
.toets {
  margin-top: 2.2rem;
  display: grid; gap: 2.5rem;
  align-items: start;
}
@media (min-width: 980px) { .toets { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); } }
.toets__figuur img { border: 1px solid var(--lijn); background: white; }
.toets__figuur figcaption { margin-top: 0.6rem; font-size: 0.88rem; color: var(--inkt-zacht); }

.tabel { width: 100%; border-collapse: collapse; font-size: 0.97rem; }
.tabel-scroll, .prijs { overflow-x: auto; }
.tabel caption { text-align: left; padding-bottom: 0.6rem; font-weight: 600; }
.tabel th, .tabel td { text-align: left; padding: 0.6rem 0.75rem; border-bottom: 1px solid var(--lijn); vertical-align: top; }
.tabel thead th {
  border-bottom: 2px solid var(--inkt);
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.02em;
}
.tabel tbody th { font-weight: 500; }
.tabel .mono { font-size: 0.8rem; }
.tabel__caption { font-family: var(--font-display); font-size: 1.05rem; }

.oordeel { font-weight: 600; white-space: nowrap; }
.oordeel--pass { color: var(--pass); }
.oordeel--pass::before { content: "✓ "; }

.lijst { padding-left: 1.1rem; display: flex; flex-direction: column; gap: 0.45rem; max-width: 42rem; }
.lijst li::marker { color: var(--accent); }
.toets__tabelblok .lijst { margin-top: 1.4rem; }

/* ── Belofteband ─────────────────────────────────────────────── */
.belofte {
  margin-top: var(--sectie);
  background: var(--nacht); color: var(--op-nacht);
  padding-block: clamp(3.5rem, 7vw, 6rem);
  position: relative; z-index: 31; /* dekt de NAP-lat af */
}
.belofte__regel {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.9rem, 4.6vw, 3.4rem);
  line-height: 1.14; letter-spacing: -0.01em;
  max-width: 18em; margin: 0;
}
.belofte__meer { font-style: normal; color: var(--oranje); }

/* ── 4 · Rekenvoorbeeld ──────────────────────────────────────── */
.calc {
  margin-top: 2rem;
  border: 1px solid var(--lijn-sterk);
  padding: clamp(1.25rem, 3vw, 2rem);
  max-width: 46rem;
  background: white;
}
.calc__invoer { display: grid; gap: 1.5rem; margin-bottom: 1.8rem; }
@media (min-width: 640px) { .calc__invoer { grid-template-columns: 1fr 1fr; gap: 2.5rem; } }
.calc__veld label { display: block; font-weight: 500; margin-bottom: 0.5rem; font-size: 0.97rem; }
.calc__slider { display: flex; align-items: center; gap: 0.9rem; }
.calc__slider output { min-width: 2.6rem; text-align: right; font-size: 0.95rem; }

input[type="range"] {
  flex: 1; appearance: none; -webkit-appearance: none;
  height: 2px; background: var(--lijn-sterk); outline-offset: 6px;
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none; -webkit-appearance: none;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--oranje); border: 0; cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--oranje); border: 0; cursor: pointer;
}

.calc__tabel .mono { font-size: 0.88rem; }
.calc__conclusie th, .calc__conclusie td {
  border-bottom: 0; border-top: 2px solid var(--inkt);
  font-weight: 600; padding-top: 0.8rem;
}
.calc__conclusie td { color: var(--oranje-inkt); }
.calc__formule { margin-top: 1.3rem; font-size: 0.76rem; color: var(--inkt-zacht); }
.calc__noot { margin-top: 0.5rem; font-size: 0.84rem; color: var(--inkt-zacht); text-wrap: pretty; }

/* ── 5 · Randvoorwaarden ─────────────────────────────────────── */
.voorwaarden {
  margin-top: 2.2rem;
  display: grid; gap: 0;
}
@media (min-width: 800px) { .voorwaarden { grid-template-columns: 1fr 1fr; column-gap: 4rem; } }
.voorwaarden__rij { padding-block: 1.15rem; border-top: 1px solid var(--lijn); }
.voorwaarden__rij dt { font-family: var(--font-display); font-weight: 600; font-size: 1.12rem; margin-bottom: 0.35rem; }
.voorwaarden__rij dd { margin: 0; color: var(--inkt-zacht); font-size: 0.99rem; text-wrap: pretty; }

/* ── 6 · Tarieven ────────────────────────────────────────────── */
.prijs { margin-top: 2rem; max-width: 52rem; }
.prijs__tabel td { width: 26%; }
.prijs__tabel thead th { font-family: var(--font-display); font-size: 1.15rem; letter-spacing: 0; }
.tabel .prijs__bedrag { font-family: var(--font-display); font-weight: 600; font-size: 1.55rem; color: var(--inkt); }
.prijs__eenheid { font-size: 0.82rem; color: var(--inkt-zacht); }
.prijs__ja { color: var(--accent-diep); font-weight: 600; }
.prijs__nee { color: var(--lijn-sterk); }
.prijs__noot { margin-top: 1.1rem; font-size: 0.88rem; color: var(--inkt-zacht); max-width: 44rem; text-wrap: pretty; }

/* ── 7 · Modules ─────────────────────────────────────────────── */
.modules__tabel { margin-top: 2rem; max-width: 52rem; }
.status { font-size: 0.74rem; color: var(--inkt-zacht); border: 1px solid var(--lijn-sterk); padding: 0.14rem 0.5rem; white-space: nowrap; }
.status--nu { color: var(--accent-diep); border-color: var(--accent-diep); }

/* ── 8 · FAQ ─────────────────────────────────────────────────── */
.faq { max-width: 46rem; }
.faq__item { border-top: 1px solid var(--lijn); }
.faq__item:last-child { border-bottom: 1px solid var(--lijn); }
.faq__item summary {
  cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: baseline; gap: 1.5rem;
  padding: 1.05rem 0;
  font-family: var(--font-display); font-weight: 600; font-size: 1.13rem;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+"; flex: none;
  font-family: var(--font-mono); font-size: 1rem; color: var(--accent);
  transition: transform 0.2s ease-out;
}
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item p { padding: 0 0 1.2rem; max-width: 42rem; color: var(--inkt-zacht); text-wrap: pretty; }

/* ── 9 · Demo ────────────────────────────────────────────────── */
.hfdst--demo { padding-bottom: var(--sectie); }
.demo { display: grid; gap: 2.5rem; align-items: start; }
@media (min-width: 900px) { .demo { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 4rem; } }
.demo__punten { margin-top: 1.4rem; }

.demo__form {
  border: 1px solid var(--lijn-sterk); background: white;
  padding: clamp(1.25rem, 3vw, 1.8rem);
  display: flex; flex-direction: column; gap: 1.05rem;
}
.veld label { display: block; font-weight: 500; font-size: 0.95rem; margin-bottom: 0.35rem; }
.veld__optioneel { color: var(--inkt-zacht); font-weight: 400; }
.veld input, .veld textarea {
  width: 100%; font: inherit; color: var(--inkt);
  border: 1px solid var(--lijn-sterk); background: var(--papier);
  padding: 0.6rem 0.7rem;
}
.veld input:focus-visible, .veld textarea:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent);
}
.veld textarea { resize: vertical; min-height: 4.5rem; }
.veld ::placeholder { color: var(--inkt-zacht); opacity: 1; }
.demo__noot { font-size: 0.72rem; color: var(--inkt-zacht); }
.demo__noot[data-state="sent"] { color: var(--accent-diep); }

/* ── Colofon ─────────────────────────────────────────────────── */
.colofon {
  margin-top: var(--sectie);
  background: var(--nacht); color: var(--op-nacht);
  padding-block: clamp(2.5rem, 5vw, 4rem);
  position: relative; z-index: 31; /* dekt de NAP-lat af */
}
.colofon__inner { display: grid; gap: 2.2rem; }
@media (min-width: 820px) { .colofon__inner { grid-template-columns: 1.4fr 1fr 1fr; gap: 3rem; } }
.brand--voet { color: var(--op-nacht); }
.colofon__regel { margin-top: 0.8rem; color: var(--op-nacht-zacht); max-width: 24rem; }
.colofon__links { display: flex; flex-direction: column; gap: 0.5rem; }
.colofon__links a { color: var(--op-nacht-zacht); text-decoration: none; }
.colofon__links a:hover { color: var(--op-nacht); }
.colofon__meta { font-size: 0.78rem; color: var(--op-nacht-zacht); line-height: 1.9; }
.colofon__peil { opacity: 0.75; }