/* ==========================================================================
   LEUVEN LAADPAAL — BLAUWDRUK 1:1
   Eén doorlopend eendraadschema, van net tot werkbon.
   ========================================================================== */

:root {
  /* palet */
  --blauwdruk: #0B2740;
  --paneel: #0E3055;
  --lijn: #D7E5F4;
  --raster: #1E4368;
  --koper: #E0902A;
  --creme: #F2EBDC;
  --stempel-rood: #B53D26;
  --inkt: #0B2740;

  /* typografie */
  --f-display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --f-body: "Atkinson Hyperlegible", "Trebuchet MS", Verdana, sans-serif;
  --f-mono: "IBM Plex Mono", "Courier New", monospace;

  /* maatvoering */
  --rand: 12px;
  --spine-x: clamp(28px, 9vw, 130px);
  --spine-gap: clamp(26px, 5vw, 70px);
  --sectie-pad: clamp(72px, 10vw, 128px);
  --inhoud-max: 1160px;
  --kop-h: 64px;

  --lijn-zwak: rgba(215, 229, 244, 0.35);
  --lijn-half: rgba(215, 229, 244, 0.72);
  --schaduw: rgba(3, 14, 25, 0.55);
}

/* --------------------------------------------------------------------------
   Reset & basis
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--kop-h) + var(--rand) + 20px);
}

body {
  margin: 0;
  padding: var(--rand);
  background-color: var(--blauwdruk);
  background-image:
    repeating-linear-gradient(to right, rgba(30, 67, 104, 0.20) 0 1px, transparent 1px 8px),
    repeating-linear-gradient(to bottom, rgba(30, 67, 104, 0.20) 0 1px, transparent 1px 8px),
    repeating-linear-gradient(to right, rgba(30, 67, 104, 0.5) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(to bottom, rgba(30, 67, 104, 0.5) 0 1px, transparent 1px 64px);
  color: var(--lijn);
  font-family: var(--f-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--koper); color: var(--blauwdruk); }

h1, h2, h3 {
  font-family: var(--f-display);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 0.95;
  margin: 0 0 0.6em;
  color: var(--lijn);
}

p { margin: 0 0 1em; max-width: 62ch; }

a { color: var(--lijn); text-decoration-color: var(--koper); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { color: var(--koper); }

:focus-visible {
  outline: 2px solid var(--koper);
  outline-offset: 3px;
  border-radius: 1px;
}

.skip {
  position: absolute;
  left: -200vw;
  top: 16px;
  z-index: 200;
  background: var(--koper);
  color: var(--blauwdruk);
  font-family: var(--f-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.6em 1em;
  text-decoration: none;
}
.skip:focus-visible { left: 24px; }

.defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Bladkader (A1-tekenblad)
   -------------------------------------------------------------------------- */
.blad-rand {
  position: fixed;
  inset: 0;
  border: var(--rand) solid var(--blauwdruk);
  pointer-events: none;
  z-index: 90;
}
.blad-rand::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--lijn-zwak);
}
.blad-rand::after {
  content: "";
  position: absolute;
  inset: 4px;
  border: 3px solid var(--lijn-zwak);
}

.blad-coords {
  position: fixed;
  z-index: 95;
  display: flex;
  justify-content: space-around;
  align-items: center;
  pointer-events: none;
  font-family: var(--f-mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  color: var(--raster);
  /* vouwmerken op derden */
  background-image:
    linear-gradient(var(--raster), var(--raster)),
    linear-gradient(var(--raster), var(--raster));
  background-repeat: no-repeat;
}
.blad-coords--top {
  top: 0; left: 0; right: 0; height: var(--rand);
  background-size: 1px 5px, 1px 5px;
  background-position: 33.33% 100%, 66.66% 100%;
}
.blad-coords--links {
  top: 0; bottom: 0; left: 0; width: var(--rand);
  flex-direction: column;
  background-size: 5px 1px, 5px 1px;
  background-position: 100% 33.33%, 100% 66.66%;
}

/* --------------------------------------------------------------------------
   Titelblok (header)
   -------------------------------------------------------------------------- */
.titelblok {
  position: sticky;
  top: var(--rand);
  z-index: 80;
  background: var(--blauwdruk);
  border: 1px solid var(--lijn-zwak);
  margin-bottom: 2px;
}
.titelblok::after {
  /* laadmeter */
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 2px;
  width: calc(var(--lading, 0) * 1%);
  background: var(--koper);
  transition: width 0.15s linear;
}

.titelblok-binnen {
  display: flex;
  align-items: stretch;
  min-height: var(--kop-h);
}

.cel, .navcel, .menu summary {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  padding: 0.55rem 1rem;
  border-right: 1px solid var(--lijn-zwak);
  text-decoration: none;
}

.cel-label {
  font-family: var(--f-mono);
  font-size: 0.56rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: rgba(215, 229, 244, 0.55);
}
.cel-waarde {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--lijn);
  white-space: nowrap;
}

.cel--merk .cel-waarde {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
}
.cel--merk:hover .cel-waarde { color: var(--koper); }

.titelblok-nav {
  display: flex;
  align-items: stretch;
  flex: 1;
}
.navcel {
  flex-direction: row;
  align-items: center;
  gap: 0.5em;
  font-family: var(--f-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--lijn);
  position: relative;
}
.navnr { color: var(--koper); font-size: 0.66rem; }
.navcel::after, .knop--tekst::after {
  content: "";
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0.55rem;
  height: 2px;
  background: var(--koper);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}
.navcel:hover::after, .navcel:focus-visible::after { transform: scaleX(1); }
.navcel:hover { color: var(--lijn); }

.cel--blad, .cel--spanning, .cel--lading { text-align: left; }
.cel--lading .cel-waarde { color: var(--koper); min-width: 4ch; }

.spanning-stip {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--koper);
  animation: spanning 2s ease-in-out infinite;
}
@keyframes spanning { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

.cel--cta {
  justify-content: center;
  background: transparent;
  border-left: 1px solid var(--lijn-zwak);
  border-right: 0;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--koper);
  position: relative;
  overflow: hidden;
  margin-left: auto;
}
.cel--cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--koper);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
  z-index: -1;
}
.cel--cta:hover, .cel--cta:focus-visible { color: var(--blauwdruk); }
.cel--cta:hover::before, .cel--cta:focus-visible::before { transform: scaleX(1); }

/* mobiel menu (native details) */
.menu { position: relative; display: none; border-right: 1px solid var(--lijn-zwak); }
.menu summary {
  cursor: pointer;
  list-style: none;
  height: 100%;
  border-right: 0;
}
.menu summary::-webkit-details-marker { display: none; }
.menu summary .cel-waarde::after { content: " +"; color: var(--koper); }
.menu[open] summary .cel-waarde::after { content: " −"; }
.menu-paneel {
  position: absolute;
  top: calc(100% + 3px);
  right: -1px;
  min-width: 240px;
  background: var(--blauwdruk);
  border: 1px solid var(--lijn-zwak);
  display: flex;
  flex-direction: column;
  z-index: 90;
}
.menu-paneel a {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  padding: 0.8rem 1.1rem;
  border-bottom: 1px solid rgba(215, 229, 244, 0.15);
  display: flex;
  gap: 0.6em;
  align-items: center;
}
.menu-paneel a:hover { background: var(--paneel); color: var(--lijn); }
.menu-paneel .menu-cta { color: var(--koper); border-bottom: 0; }

/* --------------------------------------------------------------------------
   Het eendraadschema: de ruggengraat
   -------------------------------------------------------------------------- */
main { display: block; }

.sectie { position: relative; padding-block: var(--sectie-pad); }

.sectie::before {
  content: "";
  position: absolute;
  left: var(--spine-x);
  top: 0;
  bottom: 0;
  width: 2px;
  transform: translateX(-50%);
  background: var(--lijn-half);
}
.sectie::after {
  content: "";
  position: absolute;
  left: calc(var(--spine-x) - 2px);
  top: 0;
  bottom: 0;
  width: 4px;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 17px,
    rgba(224, 144, 42, 0.95) 17px 21.5px,
    #F2EBDC 21.5px 22.5px,
    rgba(224, 144, 42, 0.95) 22.5px 24px
  );
  /* één doorlopende fase over alle secties: het venster verankert het patroon,
     zodat de koperstroom niet bij elke sectienaad een dash afsnijdt */
  background-attachment: fixed;
  animation: stroom 6s linear infinite;
  pointer-events: none;
}
@keyframes stroom { to { background-position-y: 240px; } }

/* hero: lijn raakt de onderkant van de NET-cirkel */
.sectie--hero::before, .sectie--hero::after { top: 43px; }

/* werkbon: lijn loopt door tot in het laadpaalsymbool */
.sectie--werkbon::before, .sectie--werkbon::after {
  bottom: auto;
  height: 221px;
}

.net-start {
  position: absolute;
  left: var(--spine-x);
  top: 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  transform: translateX(-9px);
}
.net-cirkel {
  width: 18px;
  height: 18px;
  border: 2px solid var(--lijn);
  border-radius: 50%;
  flex: none;
}

.knoop {
  position: absolute;
  left: var(--spine-x);
  top: calc(var(--sectie-pad) + 3px);
}
.knoop-stip {
  position: absolute;
  left: 0;
  top: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--koper);
  transform: translate(-50%, -2px);
  box-shadow: 0 0 0 3px var(--blauwdruk);
}
.knoop-plaat {
  font-family: var(--f-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--lijn-half);
  border: 1px solid var(--lijn-zwak);
  background: var(--blauwdruk);
  padding: 3px 8px;
  white-space: nowrap;
}

/* Z-knik in de geleider */
.jog {
  position: absolute;
  left: calc(var(--spine-x) - 1px);
  top: 0;
  width: 40px;
  height: 72px;
  overflow: visible;
}
.jog-lijn { fill: none; stroke: var(--lijn-half); stroke-width: 2; }
.jog-stroom {
  fill: none;
  stroke: var(--koper);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 5 19;
  animation: jogstroom 2.4s linear infinite;
}
@keyframes jogstroom { to { stroke-dashoffset: -96; } }
#waarom::before, #waarom::after { top: 72px; }

/* --------------------------------------------------------------------------
   Sectie-inhoud
   -------------------------------------------------------------------------- */
.sectie-binnen {
  margin-left: calc(var(--spine-x) + var(--spine-gap));
  max-width: var(--inhoud-max);
  padding-right: clamp(20px, 5vw, 72px);
}

.kicker {
  position: relative;
  font-family: var(--f-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--koper);
  margin: 0 0 1.4rem;
}
.kicker::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--spine-gap));
  width: calc(var(--spine-gap) - 10px);
  top: 0.6em;
  height: 1px;
  background: var(--lijn-zwak);
}

h2 {
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  max-width: 18ch;
  margin-bottom: clamp(1.6rem, 3.5vw, 2.6rem);
}

h3 {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.03em;
  line-height: 1.1;
  margin-bottom: 0.5em;
}

/* --------------------------------------------------------------------------
   SVG-tekentaal
   -------------------------------------------------------------------------- */
svg .tk, svg .tkf, svg .dun, svg .rail {
  fill: none;
  stroke: var(--lijn);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
svg .dun { stroke-width: 1; stroke: var(--lijn-zwak); }
svg .rail { stroke-width: 5; }
svg .gestreept { stroke-dasharray: 5 6; }
svg .stip { fill: var(--lijn); stroke: none; }
svg .stip--koper { fill: var(--koper); }
svg .warm { fill: var(--koper); opacity: 0.4; stroke: none; }
svg .led { fill: var(--koper); stroke: none; }
svg .led--adem { animation: adem 3.2s ease-in-out infinite; }
@keyframes adem { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }

svg .svgm {
  font-family: var(--f-mono);
  font-size: 13.5px;
  letter-spacing: 0.08em;
  fill: var(--lijn);
  opacity: 0.85;
  stroke: none;
}
svg .svgm--in { font-size: 12px; opacity: 1; }
svg .svgm--klein { font-size: 11px; }

svg .leuven-plaat { fill: var(--paneel); stroke: var(--lijn); stroke-width: 2; }
svg .leuven-tekst {
  font-family: var(--f-mono);
  font-weight: 500;
  font-size: 20px;
  letter-spacing: 0.22em;
  fill: var(--lijn);
}

svg .stroom {
  fill: none;
  stroke: var(--koper);
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-dasharray: 5 19;
  animation: jogstroom 2.4s linear infinite;
}

.svgm-cap {
  font-family: var(--f-mono);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--lijn-half);
  text-align: center;
  margin-top: 0.9rem;
}

/* zelftekenende lijnen (enkel met JS + bewegingsvoorkeur) */
@media (prefers-reduced-motion: no-preference) {
  .js .sectie svg .tk {
    stroke-dasharray: 1;
    stroke-dashoffset: 1;
    transition: stroke-dashoffset 1.1s ease-out;
    transition-delay: var(--d, 0s);
  }
  .js .sectie.is-getekend svg .tk { stroke-dashoffset: 0; }
  .js .sectie svg .tkf,
  .js .sectie svg .tx {
    opacity: 0;
    transition: opacity 0.6s ease;
    transition-delay: calc(var(--d, 0s) + 0.3s);
  }
  .js .sectie.is-getekend svg .tkf { opacity: 1; }
  .js .sectie.is-getekend svg .tx { opacity: 0.85; }
  .js .sectie.is-getekend svg .tx.leuven-tekst,
  .js .sectie.is-getekend svg .tx.svgm--in { opacity: 1; }

  .js .knoop-stip {
    transform: translate(-50%, -2px) scale(0);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) 0.15s;
  }
  .js .sectie.is-getekend .knoop-stip { transform: translate(-50%, -2px) scale(1); }

  /* onthullen via transform, zodat de losse 'translate'-eigenschap vrij blijft
     voor de hover-lift op .kaart (anders overschrijft de reveal die hover) */
  .js [data-onthul] {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.55s ease, transform 0.55s ease;
    transition-delay: var(--d, 0s);
  }
  .js [data-onthul].is-zichtbaar { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.sectie--hero { padding-block: clamp(56px, 8vw, 110px) clamp(64px, 8vw, 110px); }

.hero-binnen {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.hero-titel {
  font-size: clamp(2.9rem, 8.4vw, 6.4rem);
  margin: 0 0 0.35em;
}
.regel { display: block; }
.regel-b { display: block; }

@media (prefers-reduced-motion: no-preference) {
  .js .regel { overflow: hidden; }
  .js .regel-b {
    transform: translateY(112%);
    animation: plot 0.7s cubic-bezier(0.2, 0.65, 0.25, 1) forwards;
    animation-delay: calc(0.15s + var(--i, 0) * 0.12s);
  }
  @keyframes plot { to { transform: translateY(0); } }

  .js .hero-tekst .kicker,
  .js .maatlijn,
  .js .hero-sub,
  .js .hero-acties {
    opacity: 0;
    animation: opduiken 0.6s ease forwards;
  }
  .js .hero-tekst .kicker { animation-delay: 0.05s; }
  .js .maatlijn { animation-delay: 0.55s; }
  .js .hero-sub { animation-delay: 0.65s; }
  .js .hero-acties { animation-delay: 0.8s; }
  @keyframes opduiken { from { opacity: 0; translate: 0 14px; } to { opacity: 1; translate: 0 0; } }
}

.maatlijn {
  position: relative;
  height: 1px;
  background: rgba(215, 229, 244, 0.5);
  width: min(460px, 88%);
  margin: 1.4rem 0 1.6rem;
}
.maatlijn::before, .maatlijn::after {
  content: "";
  position: absolute;
  top: -6px;
  width: 1px;
  height: 13px;
  background: rgba(215, 229, 244, 0.6);
  /* 45°-schuine maatstreepjes volgens tekenconventie */
  transform: rotate(45deg);
}
.maatlijn::before { left: 0; }
.maatlijn::after { right: 0; }
.maatlijn-label {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--blauwdruk);
  padding: 0 0.8em;
  font-family: var(--f-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--lijn-half);
  white-space: nowrap;
}

.hero-sub { font-size: clamp(1.0625rem, 1.4vw, 1.2rem); max-width: 50ch; }

.hero-acties {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem 1.6rem;
  align-items: center;
  margin-top: 1.8rem;
}

.hero-schema svg { width: 100%; max-width: 380px; height: auto; display: block; margin-inline: auto; }

/* --------------------------------------------------------------------------
   Knoppen
   -------------------------------------------------------------------------- */
.knop {
  display: inline-block;
  font-family: var(--f-mono);
  font-weight: 500;
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  cursor: pointer;
}

.knop--primair {
  position: relative;
  color: var(--koper);
  border: 2px solid var(--koper);
  padding: 0.95em 1.6em;
  background: transparent;
  box-shadow: 4px 4px 0 rgba(224, 144, 42, 0.35);
  transition: color 0.25s ease, box-shadow 0.2s ease, translate 0.2s ease;
  overflow: hidden;
  z-index: 0;
}
.knop--primair::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--koper);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
  z-index: -1;
}
.knop--primair:hover, .knop--primair:focus-visible {
  color: var(--blauwdruk);
  translate: 2px 2px;
  box-shadow: 2px 2px 0 rgba(224, 144, 42, 0.35);
}
.knop--primair:hover::before, .knop--primair:focus-visible::before { transform: scaleX(1); }
.knop--primair:active { translate: 4px 4px; box-shadow: 0 0 0 rgba(224, 144, 42, 0.35); }

.knop--tekst {
  position: relative;
  color: var(--lijn);
  padding: 0.4em 0;
}
.knop--tekst::after { left: 0; right: 0; bottom: 0; }
.knop--tekst:hover { color: var(--koper); }
.knop--tekst:hover::after, .knop--tekst:focus-visible::after { transform: scaleX(1); }

/* --------------------------------------------------------------------------
   Kaarten (panelen)
   -------------------------------------------------------------------------- */
.kaarten {
  display: grid;
  gap: clamp(1rem, 2vw, 1.6rem);
}
.kaarten--vier { grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); }
.kaarten--twee { grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); }

.kaart {
  position: relative;
  background: var(--paneel);
  border: 1px solid rgba(215, 229, 244, 0.18);
  padding: clamp(1.3rem, 2.5vw, 1.9rem);
  transition: border-color 0.25s ease, translate 0.25s ease, box-shadow 0.25s ease;
}
.kaart::before, .kaart::after {
  content: "";
  position: absolute;
  width: 9px;
  height: 9px;
  border: 1px solid var(--lijn-half);
  transition: border-color 0.25s ease;
}
.kaart::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.kaart::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }
.kaart:hover {
  border-color: rgba(224, 144, 42, 0.55);
  translate: 0 -3px;
  box-shadow: 6px 6px 0 var(--schaduw);
}
.kaart:hover::before, .kaart:hover::after { border-color: var(--koper); }
.kaart p { margin-bottom: 0; }

.ikoon {
  width: 44px;
  height: 44px;
  display: block;
  margin-bottom: 1rem;
}
.ikoon * { fill: none; stroke: var(--lijn); stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.ikoon circle[r="1.2"], .ikoon circle[r="1.4"] { fill: var(--lijn); stroke: none; }
.kaart:hover .ikoon * { stroke: var(--koper); }
.kaart:hover .ikoon circle[r="1.2"], .kaart:hover .ikoon circle[r="1.4"] { fill: var(--koper); }

/* --------------------------------------------------------------------------
   Werkwijze
   -------------------------------------------------------------------------- */
.stappen {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: clamp(1rem, 2vw, 1.6rem);
  counter-reset: stap;
}
.stap { display: flex; flex-direction: column; }
.stap-nr {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--koper);
  border-bottom: 1px solid var(--lijn-zwak);
  padding-bottom: 0.7rem;
  margin-bottom: 1.1rem;
}
.stap-nr::before { content: "STAP "; }
.stap h3 { font-size: 1.2rem; }
.stap p a { color: var(--koper); }
.stap p a:hover { color: var(--lijn); }

/* --------------------------------------------------------------------------
   Ingenieurs
   -------------------------------------------------------------------------- */
.ingenieurs-rooster {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 2fr);
  grid-template-areas: "tekst noten" "details details";
  gap: clamp(1.5rem, 3vw, 3rem);
}
.ingenieurs-tekst { grid-area: tekst; }
.ingenieurs-tekst p:last-child { margin-bottom: 0; }

.kantnoten {
  grid-area: noten;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  border-left: 1px solid var(--lijn-zwak);
  padding-left: 1.2rem;
  align-self: start;
  margin-top: 0.4rem;
}
.kantnoten span {
  font-family: var(--f-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--lijn-half);
}
.kantnoten span::before { content: "— "; color: var(--koper); }

.details-rij {
  grid-area: details;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
  max-width: 620px;
  margin-top: 1rem;
}
.detail-kader { margin: 0; }
.detail-kader svg { width: min(100%, 230px); height: auto; display: block; margin-inline: auto; }

/* --------------------------------------------------------------------------
   Thuis & bedrijf
   -------------------------------------------------------------------------- */
.paneel-breed {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  gap: clamp(1.5rem, 3vw, 3rem);
  align-items: center;
  background: var(--paneel);
  border: 1px solid rgba(215, 229, 244, 0.18);
  padding: clamp(1.4rem, 3vw, 2.6rem);
  margin-bottom: clamp(1.2rem, 2.5vw, 2rem);
}
.paneel-breed--omgekeerd { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); }
.paneel-breed--omgekeerd .paneel-tekst { order: 2; }
.paneel-breed--omgekeerd .paneel-figuur { order: 1; }
.paneel-breed:last-child { margin-bottom: 0; }
.paneel-tekst p { margin-bottom: 0; }
.paneel-figuur svg { width: 100%; height: auto; display: block; }

.paneel-figuur--vol {
  background: var(--paneel);
  border: 1px solid rgba(215, 229, 244, 0.18);
  padding: clamp(1rem, 2.5vw, 2rem);
  margin-bottom: clamp(1.4rem, 3vw, 2.2rem);
}

.werkgebied-tekst p { max-width: 68ch; }
.werkgebied-tekst p:last-child { margin-bottom: 0; }

/* --------------------------------------------------------------------------
   Vragen (nota's)
   -------------------------------------------------------------------------- */
.notas { max-width: 820px; border-top: 1px solid var(--lijn-zwak); }

.nota { border-bottom: 1px solid var(--lijn-zwak); }
.nota summary {
  display: flex;
  align-items: baseline;
  gap: 1.2rem;
  padding: 1.1rem 0.2rem;
  cursor: pointer;
  list-style: none;
}
.nota summary::-webkit-details-marker { display: none; }
.nota-nr {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--koper);
  flex: none;
  width: 5.2em;
}
.nota-vraag {
  font-family: var(--f-body);
  font-weight: 700;
  font-size: 1.06rem;
  flex: 1;
}
.nota summary:hover .nota-vraag { text-decoration: underline; text-decoration-color: var(--koper); text-decoration-thickness: 2px; text-underline-offset: 4px; }
.nota-plus {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  align-self: center;
  transition: rotate 0.25s ease;
}
.nota-plus::before, .nota-plus::after {
  content: "";
  position: absolute;
  background: var(--koper);
}
.nota-plus::before { left: 0; right: 0; top: 6px; height: 2px; }
.nota-plus::after { top: 0; bottom: 0; left: 6px; width: 2px; }
.nota[open] .nota-plus { rotate: 45deg; }

.nota-body { padding: 0 0.2rem 1.3rem calc(5.2em + 1.2rem + 0.2rem); }
.nota-body p { margin-bottom: 0; }
@media (prefers-reduced-motion: no-preference) {
  .nota[open] .nota-body { animation: nota-open 0.3s ease; }
  @keyframes nota-open { from { opacity: 0; translate: 0 -6px; } to { opacity: 1; translate: 0 0; } }
}

/* --------------------------------------------------------------------------
   Werkbon
   -------------------------------------------------------------------------- */
.sectie--werkbon { padding-bottom: clamp(80px, 10vw, 140px); }

.terminus {
  position: absolute;
  left: var(--spine-x);
  top: 212px;
  width: 96px;
  transform: translateX(-50%);
}
.terminus svg { width: 100%; height: auto; display: block; }

.afsluiter {
  font-family: var(--f-display);
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  color: var(--lijn);
  margin: 0 0 0.2em;
}
.afsluiter + h2 { color: var(--koper); }

.werkbon-intro { max-width: 52ch; margin-bottom: clamp(1.8rem, 4vw, 3rem); }

.werkbon-papier {
  position: relative;
  background: var(--creme);
  color: var(--inkt);
  max-width: 720px;
  padding: clamp(1.5rem, 4vw, 2.8rem);
  rotate: -0.6deg;
  box-shadow: 10px 10px 0 var(--schaduw);
}
.werkbon-korrel {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.04;
  mix-blend-mode: multiply;
  pointer-events: none;
}

.werkbon-kop {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stempel {
  display: inline-flex;
  flex-direction: column;
  gap: 0.15em;
  border: 3px solid var(--stempel-rood);
  outline: 1px solid var(--stempel-rood);
  outline-offset: 3px;
  color: var(--stempel-rood);
  font-family: var(--f-mono);
  font-weight: 500;
  font-size: clamp(0.78rem, 1.8vw, 0.95rem);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding: 0.7em 1em;
  rotate: 4deg;
  margin-top: 0.6rem;
}
@media (prefers-reduced-motion: no-preference) {
  .js .stempel.is-zichtbaar { animation: gestempeld 0.3s cubic-bezier(0.2, 0.9, 0.3, 1.3) both 0.35s; }
  @keyframes gestempeld {
    from { opacity: 0; scale: 1.15; }
    to { opacity: 1; scale: 1; }
  }
}

.zegel { width: clamp(96px, 16vw, 128px); height: auto; aspect-ratio: 1; flex: none; }
.zegel--rood { color: var(--stempel-rood); rotate: -8deg; opacity: 0.92; }
.zegel-tekst {
  font-family: var(--f-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
}

#offerte-vorm { position: relative; }

.veldrij {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: 0 1.6rem;
}

.veld { margin-bottom: 1.5rem; border: 0; padding: 0; min-inline-size: 0; }
.veld label, .veld legend {
  display: block;
  font-family: var(--f-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(11, 39, 64, 0.82);
  margin-bottom: 0.35rem;
}
.veld-hint {
  font-family: var(--f-body);
  font-size: 0.82rem;
  line-height: 1.4;
  color: rgba(11, 39, 64, 0.72);
  margin: 0.4rem 0 0;
  max-width: 48ch;
}
.veld input[type="text"],
.veld input[type="email"],
.veld textarea {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 2px solid rgba(11, 39, 64, 0.55);
  font-family: var(--f-body);
  font-size: 1.05rem;
  color: var(--inkt);
  padding: 0.45rem 2px;
  border-radius: 0;
}
.veld textarea { resize: vertical; line-height: 1.5; }
.veld input::placeholder, .veld textarea::placeholder { color: rgba(11, 39, 64, 0.65); }
.veld input:focus-visible, .veld textarea:focus-visible {
  outline: none;
  border-bottom-color: var(--stempel-rood);
  box-shadow: 0 2px 0 0 var(--stempel-rood);
}

.veld--keuze { display: flex; flex-wrap: wrap; gap: 0.4rem 2rem; align-items: center; }
.veld--keuze legend { width: 100%; float: left; }
.keuze {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  font-size: 1.02rem;
  cursor: pointer;
}
.keuze input { accent-color: var(--stempel-rood); width: 17px; height: 17px; cursor: pointer; }
.keuze input:focus-visible { outline: 2px solid var(--stempel-rood); outline-offset: 2px; }

.knop--stempel {
  background: var(--stempel-rood);
  color: var(--creme);
  border: 0;
  padding: 1em 1.8em;
  box-shadow: 4px 4px 0 rgba(11, 39, 64, 0.85);
  transition: translate 0.15s ease, box-shadow 0.15s ease;
  margin-top: 0.4rem;
}
.knop--stempel:hover, .knop--stempel:focus-visible {
  translate: 2px 2px;
  box-shadow: 2px 2px 0 rgba(11, 39, 64, 0.85);
}
.knop--stempel:focus-visible { outline-color: var(--stempel-rood); }
.knop--stempel:active { translate: 4px 4px; box-shadow: 0 0 0 rgba(11, 39, 64, 0.85); }

#vorm-status {
  font-family: var(--f-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--stempel-rood);
  border: 1px dashed var(--stempel-rood);
  padding: 0.8em 1em;
  margin-top: 1.3rem;
  max-width: none;
}
/* leeg blijft de live-regio in de toegankelijkheidsboom, maar zonder kader */
#vorm-status:empty { border: 0; padding: 0; margin: 0; }

/* op het crèmepapier is de koperen focusring te zwak (±2:1); gebruik rood */
.werkbon-papier :focus-visible { outline-color: var(--stempel-rood); }

/* honeypot tegen spambots — onzichtbaar en weggehouden van toetsenbord */
.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

.werkbon-alternatief { margin-top: 1.4rem; margin-bottom: 0.3rem; font-size: 0.95rem; }
.werkbon-alternatief a { color: var(--inkt); text-decoration-color: var(--stempel-rood); }
.werkbon-alternatief a:hover { color: var(--stempel-rood); }
.werkbon-privacy { font-size: 0.8rem; color: rgba(11, 39, 64, 0.65); margin-bottom: 0; }

/* --------------------------------------------------------------------------
   Voetblok
   -------------------------------------------------------------------------- */
.voetblok {
  border: 1px solid var(--lijn-zwak);
  background: var(--blauwdruk);
  margin-top: 2px;
}
.voetblok-binnen {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}
.voetcel {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0.9rem 1.2rem;
  border-right: 1px solid var(--lijn-zwak);
}
.voetcel--meter .cel-waarde { color: var(--koper); }
.voetcel a { text-decoration: none; color: var(--lijn); }
.voetcel a:hover { color: var(--koper); }
.zegel--voet {
  width: 56px;
  color: var(--lijn-half);
  margin: 0.6rem 1.2rem 0.6rem auto;
}
.voet-legaal {
  font-family: var(--f-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  color: rgba(215, 229, 244, 0.6);
  border-top: 1px solid var(--lijn-zwak);
  padding: 0.9rem 1.2rem;
  margin: 0;
  max-width: none;
}
.voet-legaal a { color: rgba(215, 229, 244, 0.75); }
.voet-legaal a:hover { color: var(--koper); }

/* --------------------------------------------------------------------------
   404
   -------------------------------------------------------------------------- */
.fout-pagina {
  min-height: calc(100vh - 2 * var(--rand));
  display: grid;
  place-content: center;
  text-align: center;
  padding: 2rem;
}
.fout-pagina .kicker::before { display: none; }
.fout-pagina h1 { font-size: clamp(2.6rem, 8vw, 5rem); }
.fout-pagina p { margin-inline: auto; }
.fout-pagina .knop--primair { margin-top: 1.5rem; }

/* --------------------------------------------------------------------------
   Scrollgedreven laadmeter (progressieve verbetering)
   -------------------------------------------------------------------------- */
@supports (animation-timeline: scroll()) {
  .titelblok::after {
    width: 100%;
    transform: scaleX(0);
    transform-origin: left;
    transition: none;
    animation: laadmeter linear both;
    animation-timeline: scroll(root);
  }
  @keyframes laadmeter { from { transform: scaleX(0); } to { transform: scaleX(1); } }
}

/* --------------------------------------------------------------------------
   Responsief
   -------------------------------------------------------------------------- */
@media (max-width: 1180px) {
  .cel--blad, .cel--spanning { display: none; }
}

@media (max-width: 1080px) {
  .titelblok-nav { display: none; }
  .menu { display: block; position: static; margin-left: auto; }
  /* paneel verankert nu op het titelblok i.p.v. de smalle menucel,
     zodat het niet meer links buiten het scherm valt op kleine telefoons */
  .menu-paneel { left: 0; right: 0; min-width: 0; top: calc(100% + 3px); }
  .cel--cta { margin-left: 0; }
  .cel--lading { display: none; }
}

@media (max-width: 960px) {
  .hero-binnen { grid-template-columns: 1fr; }
  .hero-schema { order: 2; }
  .hero-schema svg { max-width: 320px; margin-inline: 0; }
  .ingenieurs-rooster {
    grid-template-columns: 1fr;
    grid-template-areas: "tekst" "noten" "details";
  }
  .kantnoten { flex-direction: row; flex-wrap: wrap; gap: 0.8rem 1.6rem; border-left: 0; padding-left: 0; border-top: 1px solid var(--lijn-zwak); padding-top: 1.1rem; }
  .paneel-breed, .paneel-breed--omgekeerd { grid-template-columns: 1fr; }
  .paneel-breed--omgekeerd .paneel-tekst { order: 1; }
  .paneel-breed--omgekeerd .paneel-figuur { order: 2; }
}

@media (max-width: 900px) {
  .blad-coords { display: none; }
}

@media (max-width: 720px) {
  :root {
    --spine-x: 20px;
    --spine-gap: 24px;
  }
  body {
    background-image:
      repeating-linear-gradient(to right, rgba(30, 67, 104, 0.45) 0 1px, transparent 1px 64px),
      repeating-linear-gradient(to bottom, rgba(30, 67, 104, 0.45) 0 1px, transparent 1px 64px);
  }
  .knoop-plaat, .net-start .knoop-plaat { font-size: 0.56rem; }
  .nota-body { padding-left: 0.2rem; }
  .nota summary { gap: 0.8rem; }
  .terminus { width: 64px; top: 190px; }
  .sectie--werkbon::before, .sectie--werkbon::after { height: 196px; }
  .sectie--werkbon .sectie-binnen { margin-left: calc(var(--spine-x) + 40px); }
  .werkbon-kop { flex-direction: column-reverse; align-items: flex-start; }
  .zegel--rood { align-self: flex-end; margin-bottom: -1.4rem; }
  .cel, .navcel, .menu summary { padding: 0.5rem 0.7rem; }
  .cel--merk .cel-waarde { font-size: 1rem; }
  .voetcel { border-right: 0; border-bottom: 1px solid rgba(215, 229, 244, 0.15); width: 100%; }
  .zegel--voet { margin: 0.9rem 1.2rem; }
}

@media (max-width: 400px) {
  .cel--cta { font-size: 0.68rem; padding-inline: 0.55rem; }
  .hero-acties { flex-direction: column; align-items: flex-start; }
}

/* --------------------------------------------------------------------------
   Beweging uitgeschakeld
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .sectie::after {
    animation: none;
    background: rgba(224, 144, 42, 0.4);
    width: 2px;
  }
  .jog-stroom, svg .stroom { animation: none; opacity: 0.4; stroke-dasharray: none; }
  svg .led--adem, .spanning-stip { animation: none; }
}