/* =========================
   Design tokens
   ========================= */
:root {
  --accent: #2584cc;
  --ink: #0f172a;
  --bg: #f5f7fb;
  --panel: #ffffff;
  --line: #e5e7eb;
}

/* =========================
   Basis en resets
   ========================= */
* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font: 16px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
}

@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400;
  src: url('https://fonts.gstatic.com/s/roboto/v30/roboto-regular.woff2') format('woff2');
  font-display: swap;
}

/* =========================
   Header en navigatie
   ========================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand img {
  height: 70px;
  width: auto;
  display: block;
}

.brand span {
  font-weight: 800;
  font-size: 22px;
  color: var(--ink);
}

/* primaire menucontainer */
.menu {
  display: flex;
  align-items: center;
  gap: 26px;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* links in menu met underline-animatie */
.menu a {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 10px 2px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: .2px;
}

/* globale variant van dezelfde linkstijl */
.menu a {
  text-decoration: none;
  position: relative;
  color: #0f172a;
}

/* underline-animatie */
.menu a::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  bottom: -2px;
  height: 4px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .2s ease;
}

.menu a:hover::after,
.menu a.active::after,
.menu a[aria-current="page"]::after,
.menu a:focus::after {
  transform: scaleX(1);
}

/* ruimte tussen links en rechterkant */
.nav-spacer {
  flex: 1;
}

/* rechterzijde header */
.nav-right {
  display: flex;
  gap: 16px;
  align-items: center;
  font-size: 14px;
}

.nav-right a {
  color: var(--ink);
  text-decoration: none;
  opacity: .85;
}

.nav-right a:hover {
  opacity: 1;
}

/* =========================
   Toegankelijkheid
   ========================= */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* =========================
   Navigatie toggle (mobiel)
   ========================= */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
}

.nav-toggle .bars {
  position: relative;
  width: 20px;
  height: 2px;
  background: var(--ink);
}

.nav-toggle .bars::before,
.nav-toggle .bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--ink);
}

.nav-toggle .bars::before {
  top: -6px;
}

.nav-toggle .bars::after {
  top: 6px;
}

/* =========================
   Layout: hero en content
   ========================= */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px;
  display: grid;
  grid-template-columns: minmax(0,1.2fr) minmax(0,1fr);
  gap: 28px;
}

/* enkelkoloms hero-blok */
.hero-full {
  max-width: 1200px;
  margin: 5px auto 0px;
  padding: 15px 20px;
  display: block;
}

/* kaartcontainer */
.card {
  max-width: 100%;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 6px 24px rgba(0,0,0,.06);
}

.card-full
{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  max-width: 1200px;
  box-shadow: 0 6px 24px rgba(0,0,0,.06);
  margin-top:20px;
  margin-bottom:20px;
  padding: 24px 20px;
}

/* kaarten mogen flexen en vullen */
.card {
  display: flex;
  padding: 24px 20px;
  flex-direction: column;
  gap: 5px;
}

.card > * {
  min-width: 0;
}

/* media schaalt mee binnen kaarten */
.card img,
.card video {
  max-width: 100%;
  height: auto;
  display: block;
}

/* headings binnen kaarten */
.card h1,
.card h2,
.card h3 {
  margin-top: 0;
  margin-bottom: 8px;
}

.card p {
  margin-top: 0;
  margin-bottom: 12px;
}

/* typografie */
h1 {
  margin: 0 0 10px;
  font-size: 32px;
}

.lead {
  margin: 0 0 16px;
  font-size: 18px;
  color: #334155;
}

/* schaalbare headings */
h1 {
  font-size: clamp(22px, 5vw, 32px);
}

h2 {
  font-size: clamp(18px, 3.8vw, 26px);
}

h3 {
  font-size: clamp(16px, 3.2vw, 20px);
}

/* =========================
   Knoppen
   ========================= */
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
  width: auto;
  max-width: fit-content;
}

.btn.secondary {
  background: #334155;
}

.card .btn.bottom-left {
  margin-top: auto;
  align-self: flex-start;
}

.btn.center {
  display: block;
  margin: 12px auto 0;
}

/* =========================
   Grids
   ========================= */
.grid {
  max-width: 1200px;
  margin: 8px auto 40px;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 18px;
  align-items: stretch;
}

.grid .card {
  display: flex;
  flex-direction: column;
}

.grid .card .btn {
  margin-top: auto;
  align-self: flex-start;
}

/* twee kolommen sectie */
.twocol-grid {
  max-width: 1200px;
  margin: 0px auto;
  padding: 15px 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

/* 1/3 – 2/3 grid */
.grid-1-2 {
  max-width: 1200px;
  margin: 0px auto;
  padding: 15px 20px;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1.5rem;
}

/* drie gelijke kolommen */
.grid-thirds {
  max-width: 1200px;
  margin: 0px auto;
  padding: 15px 20px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1.5rem;
}

/* responsief stapelen */
@media (max-width: 800px) {           /* was 1024px */
  .grid-1-2   { grid-template-columns: 1fr; }
  .grid-thirds{ grid-template-columns: 1fr 1fr; }
  .grid-halves{ grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .grid-thirds { grid-template-columns: 1fr; }
}



.twocol-grid .card {
  width: 100%;
}

.twocol-grid .card.full {
  max-width: 1200px;
  margin: 0px auto;
  padding: 24px 20px;
  grid-column: 1 / -1;
}

.grid-1-2 .card {
  width: 100%;
}

.grid-thirds .card {
  width: 100%;
}


/* uitlijning utilities */
.center-card {
  text-align: center;
}

/* =========================
   Embeds
   ========================= */
.embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
}

.embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.card.video-card {
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;   /* alles binnen de card horizontaal centreren */
}

.video-card iframe {
  width: 100%;
  aspect-ratio: 16/9;
  height: auto;
  display: block;
  border: 0;
  border-radius: 14px;
  padding: 25px;
}
.video-card h3 {
  margin: 16px 20px;
  font-size: clamp(20px, 3.2vw, 25px);
  font-weight: 600;
}

.video-card .embed {
  margin: 0 0 16px;   /* ruimte onder video indien nodig */
}
.video-card {
  max-width: 1200px;   /* zelfde als je hero */
  margin: 0 auto;      /* centreert op de pagina */
  padding: 0;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 6px 24px rgba(0,0,0,.06);
}


/* =========================
   Component: systeem (details)
   ========================= */
.systeem summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  list-style: none;
  padding: 8px 0;
  font-weight: 500;
}

.systeem summary::-webkit-details-marker {
  display: none;
}

/* titel en beschrijving onder elkaar */
.systeem summary .text {
  display: flex;
  flex-direction: column;
  margin: 0;
}

.systeem summary h4 {
  margin: 0 0 0;
}

.systeem summary p {
  margin: 0;
}

/* pijltje-icon via PNG */
.systeem summary::after {
  content: "";
  width: 20px;
  height: 20px;
  background: url("/static/icons/fold.png") center/cover no-repeat;
  flex: 0 0 20px;
  transition: transform .2s, opacity .2s;
  opacity: .75;
}

.systeem[open] summary::after {
  transform: rotate(180deg);
  opacity: 1;
}

/* ruimte tussen items */
.systeem + .systeem {
  margin-top: 8px;
}

/* =========================
   Media queries
   ========================= */
/* mobiel navigatie en menu */
@media (max-width: 900px) {
  .nav-inner {
    position: relative;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-spacer {
    display: none;
  }

  .nav-right {
    display: none;
  }

  .menu {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 10px 20px;
    flex-direction: column;
    gap: 6px;
  }

  .menu.open {
    display: flex;
  }

  .menu a {
    padding: 12px 2px;
  }

  .hero {
    grid-template-columns: 1fr;
  }
}

/* behoud desktopmenu */
@media (min-width: 901px) {
  .menu {
    display: flex;
  }
}

/* iPad en groter: 3 kolommen blijven intact */
@media (max-width: 900px) {
  .grid.grid-thirds { grid-template-columns: 1fr 1fr 1fr !important; }
  .grid-1-2         { grid-template-columns: 1fr 2fr !important; }
  .twocol-grid      { grid-template-columns: 1fr 1fr !important; }
}

/* iPhone (≤640px): alles onder elkaar */
@media (max-width: 640px) {
  .grid,
  .grid-thirds,
  .grid-1-2,
  .grid-halves,
  .twocol-grid { grid-template-columns: 1fr !important; }
}