:root {
  --marine: #1a2a44;
  --marine-licht: #24385c;
  --accent: #2f6fde;
  --grijs: #f4f5f7;
  --rand: #dde1e7;
  --tekst: #1f2733;
  --tekst-zacht: #6b7484;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--tekst);
  background: var(--grijs);
}

.layout { display: flex; min-height: 100vh; }

.zijbalk {
  width: 230px;
  background: var(--marine);
  color: #fff;
  display: flex;
  flex-direction: column;
  padding: 18px 0;
}
.logo { font-size: 20px; padding: 0 20px 18px; letter-spacing: .3px; }
.logo strong { color: #8ab4ff; }
.logo.groot { font-size: 26px; text-align: center; padding: 0 0 18px; color: var(--marine); }
.logo.groot strong { color: var(--accent); }

.zijbalk nav { flex: 1; }
.zijbalk nav a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #c7d2e6;
  text-decoration: none;
  padding: 9px 20px;
  font-size: 14px;
}
.zijbalk nav a:hover { background: var(--marine-licht); color: #fff; }
.zijbalk nav a.actief { background: var(--marine-licht); color: #fff; border-left: 3px solid #8ab4ff; padding-left: 17px; }
.teller {
  background: rgba(255,255,255,.15);
  border-radius: 10px;
  padding: 1px 8px;
  font-size: 12px;
}

.zijbalk-onder { padding: 12px 20px 0; border-top: 1px solid var(--marine-licht); font-size: 13px; }
.zijbalk-onder a { display: block; color: #c7d2e6; text-decoration: none; padding: 5px 0; }
.zijbalk-onder a:hover { color: #fff; }
.gebruiker { padding-bottom: 6px; }
.gebruiker span { display: block; font-weight: 600; }
.gebruiker small { color: #93a3bd; }
.link-knop {
  background: none; border: none; color: #c7d2e6; cursor: pointer;
  padding: 5px 0; font-size: 13px; font-family: inherit;
}
.link-knop:hover { color: #fff; }

.inhoud { flex: 1; padding: 26px 32px; }

.paginakop { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
h1 { margin: 0 0 18px; font-size: 22px; }

.shopfilter a {
  display: inline-block;
  text-decoration: none;
  color: var(--tekst-zacht);
  padding: 5px 12px;
  border-radius: 15px;
  font-size: 13px;
}
.shopfilter a.actief { background: var(--marine); color: #fff; }

.tickettabel {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(20,30,50,.08);
  font-size: 14px;
}
.tickettabel th {
  text-align: left;
  background: var(--marine);
  color: #fff;
  padding: 10px 12px;
  font-weight: 600;
  font-size: 13px;
}
.tickettabel td { padding: 10px 12px; border-top: 1px solid var(--rand); }
.tickettabel tbody tr:nth-child(even) { background: #f2f2f2; }
.tickettabel tbody tr:hover { background: #eaf0fb; }
.tickettabel tr.klikrij { cursor: pointer; }
.inline-form { display: inline; }
.link-knop.geen-klant { color: var(--tekst-zacht); font-size: 12px; padding: 0; }
.link-knop.geen-klant:hover { color: #a33; }
.knop.klein { padding: 5px 10px; font-size: 12px; }

.badge {
  display: inline-block;
  border-radius: 4px;
  padding: 2px 7px;
  font-size: 12px;
  font-weight: 600;
  background: var(--grijs);
}
/* Shopkleuren uit de huisstijlen: VVK-logo roze/rood, TBF site-blauw, VVO-logo groen */
.badge.shop-vvk { background: #c01050; color: #fff; }
.badge.shop-tbf { background: #0693e3; color: #fff; }
.badge.shop-vvo { background: #008070; color: #fff; }
.badge.status-nieuw { background: #fdecec; color: #a33; }
.badge.status-open { background: #e8ecf7; color: #29477e; }
.badge.status-wacht_op_klant { background: #fff6e0; color: #8a6116; }
.badge.status-wacht_intern { background: #f2e8f7; color: #6b3f8a; }

.leeg {
  background: #fff;
  border: 1px dashed var(--rand);
  border-radius: 8px;
  padding: 46px;
  text-align: center;
  color: var(--tekst-zacht);
}
.leeg .uitleg { font-size: 13px; }

.meldingen { margin-bottom: 16px; }
.melding {
  background: #e8f0fe;
  border: 1px solid #bcd0f5;
  color: #1d3f77;
  border-radius: 6px;
  padding: 10px 14px;
  margin-bottom: 8px;
  font-size: 14px;
}
.melding.fout { background: #fdecec; border-color: #f0c4c4; color: #8a2525; }

.formulier { max-width: 420px; background: #fff; padding: 22px; border-radius: 8px; box-shadow: 0 1px 3px rgba(20,30,50,.08); }
.formulier label, .login-kaart label { display: block; margin: 12px 0 4px; font-size: 13px; font-weight: 600; }
.formulier input[type="text"], .formulier input[type="email"], .formulier input[type="password"],
.formulier select, .login-kaart input {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--rand);
  border-radius: 6px;
  font-size: 14px;
}
.formulier .checkbox { display: flex; gap: 8px; align-items: center; font-weight: 400; margin-top: 14px; }
.formulier .checkbox input { width: auto; }
.formulier button, .login-kaart button, .knop {
  margin-top: 18px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.formulier button:hover, .login-kaart button:hover, .knop:hover { background: #245bbd; }
.knop { margin-top: 0; }

.ticketlink { color: var(--tekst); text-decoration: none; font-weight: 600; }
.ticketlink:hover { color: var(--accent); }
.klant-groot { display: block; font-size: 15px; font-weight: 700; }
.onderwerp-sub { color: var(--tekst-zacht); font-size: 12.5px; line-height: 1.35; margin-top: 2px; }

.ticketkop h1 { margin-bottom: 8px; }
.ticketmeta { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 20px; }

.ticketindeling { display: flex; gap: 24px; align-items: flex-start; }
.gesprek { flex: 1; min-width: 0; }

.bericht {
  background: #fff;
  border: 1px solid var(--rand);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 12px;
  max-width: 85%;
}
.bericht.in { border-left: 3px solid var(--marine); }
.bericht.uit { border-left: 3px solid var(--accent); margin-left: auto; background: #f4f8ff; }
.bericht.notitie { border-left: 3px solid #c9a227; background: #fffbea; }
.bericht.ai { border-style: dashed; }
.bericht-kop {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
}
.bericht-kop time { color: var(--tekst-zacht); font-weight: 400; }
.bericht-body { white-space: pre-wrap; font-size: 14px; line-height: 1.5; }

.antwoordblok { padding: 18px; margin-top: 4px; }

.klantpaneel {
  width: 400px;
  flex-shrink: 0;
  background: #fff;
  border-radius: 8px;
  padding: 16px 18px;
  box-shadow: 0 1px 3px rgba(20,30,50,.08);
  font-size: 14px;
}
@media (max-width: 1080px) {
  .ticketindeling { flex-wrap: wrap; }
  .klantpaneel { width: 100%; }
}
.klantpaneel h2 { font-size: 13px; text-transform: uppercase; letter-spacing: .4px; color: var(--tekst-zacht); margin: 18px 0 6px; }
.klantpaneel h2:first-child { margin-top: 0; }
.klantpaneel p { margin: 4px 0; }
.klantpaneel small { color: var(--tekst-zacht); display: inline-block; min-width: 88px; }
.klantnaam { font-weight: 600; }
.uitleg-klein { color: var(--tekst-zacht); font-size: 13px; }
.eerder-ticket a { color: var(--accent); text-decoration: none; }
.eerder-ticket a:hover { text-decoration: underline; }

.notitieform {
  background: #fffbea;
  border: 1px solid #eadfa8;
  border-radius: 8px;
  padding: 14px 16px;
  margin-top: 8px;
}
.notitieform label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.notitieform textarea {
  width: 100%;
  border: 1px solid var(--rand);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
}
.notitieform-onder { display: flex; justify-content: space-between; gap: 10px; margin-top: 8px; flex-wrap: wrap; }
.notitieform select, .paneelform select {
  padding: 8px 10px;
  border: 1px solid var(--rand);
  border-radius: 6px;
  font-size: 13px;
  background: #fff;
}
.notitieform button, .paneelform button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.notitieform button:hover, .paneelform button:hover { background: #245bbd; }
.paneelform { display: flex; gap: 8px; margin: 6px 0; }
.paneelform select { flex: 1; min-width: 0; }

.kanban { display: flex; gap: 14px; align-items: flex-start; overflow-x: auto; padding-bottom: 12px; }
.kolom {
  background: #eceef2;
  border-radius: 10px;
  padding: 10px;
  width: 250px;
  flex-shrink: 0;
  min-height: 240px;
}
.kolom.doel { outline: 2px dashed var(--accent); outline-offset: -4px; }
.kolomkop {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: var(--tekst-zacht);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2px 4px 10px;
}
.kolomkop .teller { background: #fff; color: var(--tekst-zacht); }
.kaart {
  background: #fff;
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 8px;
  box-shadow: 0 1px 2px rgba(20,30,50,.1);
  cursor: grab;
  font-size: 13px;
}
.kaart.sleept { opacity: .5; }
.kaart a { color: var(--tekst); text-decoration: none; font-weight: 600; display: block; margin-bottom: 6px; }
.kaart a:hover { color: var(--accent); }
.kaart .badge { margin-bottom: 6px; }
.kaart a.kaart-klant { font-size: 15px; font-weight: 700; margin: 2px 0 2px; }
.kaart-onderwerp { color: var(--tekst-zacht); font-size: 12.5px; line-height: 1.35; margin-bottom: 2px; }
.kaartmeta { display: flex; justify-content: space-between; gap: 6px; color: var(--tekst-zacht); margin-top: 4px; align-items: center; }
.kaart .toegewezen { background: var(--grijs); border-radius: 10px; padding: 1px 8px; font-size: 12px; }

.antwoordform {
  background: #f4f8ff;
  border: 1px solid #c6d8f5;
  border-radius: 8px;
  padding: 14px 16px;
  margin-top: 8px;
}
.antwoordform label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.antwoordform textarea {
  width: 100%;
  border: 1px solid var(--rand);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
}
.antwoordform button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.antwoordform button:hover { background: #245bbd; }

.filterform { margin-bottom: 18px; flex-wrap: wrap; }
.filterform input[type="text"] {
  padding: 8px 10px;
  border: 1px solid var(--rand);
  border-radius: 6px;
  font-size: 13px;
}
.link-knop.verwijder { color: #a33; padding: 0; }
.log-kop { font-size: 17px; margin-top: 28px; }

.hoofdmenu {
  padding-bottom: 10px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--marine-licht);
}
.hoofdmenu a {
  display: block;
  color: #c7d2e6;
  text-decoration: none;
  padding: 9px 20px;
  font-size: 14px;
  font-weight: 600;
}
.hoofdmenu a:hover { background: var(--marine-licht); color: #fff; }
.hoofdmenu a.actief { background: var(--marine-licht); color: #fff; border-left: 3px solid #8ab4ff; padding-left: 17px; }

.badge.claim-concept { background: var(--grijs); color: var(--tekst-zacht); }
.badge.claim-ingediend { background: #e8ecf7; color: #29477e; }
.badge.claim-ontvangen { background: #e0f0fb; color: #0f6293; }
.badge.claim-onderzoek { background: #fff6e0; color: #8a6116; }
.badge.claim-oplossing { background: #eaf6e2; color: #3c7020; }
.badge.claim-opvolgen { background: #fdecec; color: #a33; }
.badge.claim-factuur_controle { background: #f2e8f7; color: #6b3f8a; }
.badge.claim-afgesloten { background: #e5f0e5; color: #2c6e2c; }

.stappenbalk {
  display: flex;
  gap: 4px;
  margin: 4px 0 22px;
  flex-wrap: wrap;
}
.stap {
  flex: 1;
  min-width: 96px;
  background: #fff;
  border: 1px solid var(--rand);
  border-radius: 8px;
  padding: 8px 10px;
  text-align: center;
  opacity: .45;
}
.stap.bereikt { opacity: 1; border-color: #9fb9e8; background: #f4f8ff; }
.stap.huidig { border: 2px solid var(--accent); background: #eaf1ff; }
.stap-icoon { display: block; font-size: 18px; }
.stap-label { font-size: 11.5px; color: var(--tekst); line-height: 1.25; display: block; margin-top: 3px; }

.tijdlijnstap {
  background: #fff;
  border: 1px solid var(--rand);
  border-left: 3px solid var(--rand);
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 10px;
}
.tijdlijnstap.mijlpaal { border-left-color: var(--marine); }
.tijdlijnstap.bericht-uit { border-left-color: var(--accent); background: #f4f8ff; }
.tijdlijnstap.bericht-in { border-left-color: #0f6293; background: #f0f8fd; }
.tijdlijnstap.status { border-left-color: #3c7020; }
.tijdlijnstap.notitie { border-left-color: #c9a227; background: #fffbea; }

.oplossing-tekst {
  background: #eaf6e2;
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 13px;
}
.oplossingform { flex-direction: column; align-items: stretch; }
.oplossingform textarea {
  width: 100%;
  border: 1px solid var(--rand);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 13px;
  font-family: inherit;
  resize: vertical;
}

.wa-venster {
  border-radius: 8px;
  padding: 9px 14px;
  font-size: 13px;
  margin-top: 12px;
}
.wa-venster.open { background: #eaf6e2; border: 1px solid #bfdfae; color: #2c5217; }
.wa-venster.dicht { background: #fdecec; border: 1px solid #f0c4c4; color: #8a2525; }

.login-pagina {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.login-kaart {
  background: #fff;
  border-radius: 10px;
  padding: 34px 38px;
  width: 360px;
  box-shadow: 0 4px 18px rgba(20,30,50,.12);
}
.login-kaart button { width: 100%; }

/* ── Rode menutellers + doorwerk-knoppen + nieuw bericht (2026-07-18) ── */
.hoofdmenu a { display: flex; align-items: center; gap: 6px; }
.navteller { margin-left: auto; background: #d23c3c; color: #fff; border-radius: 999px;
  font-size: 11px; font-weight: 700; padding: 1px 8px; line-height: 1.5; }
.ticket-navknoppen { display: inline-flex; gap: 8px; align-items: center; margin-left: auto; }
.ticket-navknoppen form { margin: 0; display: inline; }
.ticket-navknoppen a { text-decoration: none; }
.knop.afronden { background: #2e7d32; }
.knop.afronden:hover { background: #256428; }
.knop.ghost { background: #fff; color: var(--tekst); border: 1px solid #d1d5db; }
.knop.ghost:hover { background: #f3f4f6; color: var(--tekst); }
.nb-kolom { max-width: 760px; }
.nb-uitleg { color: var(--tekst-zacht); font-size: 13.5px; line-height: 1.55; max-width: 65ch; margin: 4px 0 20px; }
.nb-kaart { background: #fff; border: 1px solid var(--rand); border-radius: 10px; padding: 18px 20px 20px; margin-bottom: 18px; }
.nb-kaart h2 { margin: 0 0 4px; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; color: var(--tekst-zacht); }
.nb-kaart .nb-hint { margin: 0 0 12px; }
.nb-hint { font-size: 12.5px; color: var(--tekst-zacht); line-height: 1.45; }
.nb-kaart input, .nb-kaart select, .nb-kaart textarea {
  border: 1px solid var(--rand); border-radius: 8px; padding: 0 12px; height: 40px;
  font-size: 14px; font-family: inherit; color: var(--tekst); background: #fff; width: 100%;
}
.nb-kaart textarea { height: auto; padding: 10px 12px; line-height: 1.5; resize: vertical; }
.nb-kaart input:focus, .nb-kaart select:focus, .nb-kaart textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(47,111,222,.12);
}
.nb-zoekrij { display: flex; gap: 10px; }
.nb-zoekrij select { flex: 0 0 190px; width: auto; }
.nb-zoekrij input { flex: 1; }
.nb-zoekrij .knop { flex: 0 0 auto; }
.nb-zoekrij + .tickettabel, .nb-resultaat { margin-top: 14px; }
.nb-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
.nb-form label { display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; font-weight: 600; color: var(--tekst-zacht); }
.nb-veld-vol { grid-column: 1 / -1; }
.nb-acties { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 2px; }
@media (max-width: 720px) {
  .nb-form { grid-template-columns: 1fr; }
  .nb-zoekrij { flex-wrap: wrap; }
  .nb-zoekrij select { flex: 1 1 100%; }
}

/* ── Nieuw bericht: tekstbalk + handtekening-preview (2026-07-18) ── */
.nb-tekstbalk { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.nb-tekstbalk-label { font-size: 12.5px; font-weight: 600; color: var(--tekst-zacht); margin-right: auto; }
.nb-tekstbalk select { width: auto; height: 32px; font-size: 13px; padding: 0 8px; }
.nb-handtekening { border: 1px dashed var(--rand); border-radius: 8px; padding: 10px 14px; background: var(--grijs); }
.nb-handtekening-blok { margin-top: 6px; font-size: 13px; line-height: 1.45; }
.nb-handtekening-blok img { max-height: 60px; width: auto; }

/* ── E-mails beoordelen + status-zijbalk (2026-07-18) ─────────────── */
.nav-kopje { padding: 14px 20px 4px; font-size: 11px; font-weight: 700; letter-spacing: .6px; text-transform: uppercase; color: #7f90ab; }
.beoordeel-lijst { display: flex; flex-direction: column; gap: 10px; max-width: 980px; }
.beoordeel-item { background: #fff; border: 1px solid var(--rand); border-radius: 10px; overflow: hidden; }
.beoordeel-kop { display: flex; align-items: center; gap: 12px; padding: 12px 14px; cursor: pointer; }
.beoordeel-kop:hover { background: #f7f9fc; }
.beoordeel-wie { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.beoordeel-wie strong { font-size: 14.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.beoordeel-wie .onderwerp-sub { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.beoordeel-kop time { color: var(--tekst-zacht); font-size: 12.5px; white-space: nowrap; }
.beoordeel-acties { display: flex; gap: 6px; flex-shrink: 0; }
.beoordeel-body { display: none; border-top: 1px solid var(--rand); padding: 14px 16px; background: #fbfcfe; }
.beoordeel-item.open .beoordeel-body { display: block; }
.beoordeel-body .platte { white-space: pre-wrap; font-size: 13.5px; line-height: 1.55; overflow-wrap: anywhere; }
.beoordeel-link { display: inline-block; margin-top: 10px; color: var(--accent); text-decoration: none; font-size: 13px; font-weight: 600; }
.beoordeel-link:hover { text-decoration: underline; }
.knop-geenklant { background: none; border: 1px solid var(--rand); border-radius: 6px; cursor: pointer; font-size: 12px; padding: 3px 9px; color: var(--tekst-zacht); white-space: nowrap; }
.knop-geenklant:hover { background: #fdecec; color: #a33; border-color: #f0c4c4; }

/* ── Composer: normale regelafstand (Enter gaf te veel wit) + nette
      weergave van originele klantmail-HTML (2026-07-18) ─────────────── */
.composer-editor p, .composer-editor div { margin: 0 0 6px; }
.composer-editor p:last-child, .composer-editor div:last-child { margin-bottom: 0; }
.bericht-html p { margin: 0 0 8px; }
.bericht-html table { max-width: 100%; border-collapse: collapse; }
.bericht-html img { max-width: 100%; height: auto; }

/* Zoekbalk in de zijbalk */
.zoekbalk{padding:0 16px 14px;}
.zoekbalk input{width:100%;box-sizing:border-box;height:38px;border:none;border-radius:9px;padding:0 14px 0 36px;font-size:14px;color:#1f2733;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238a97a3' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cline x1='21' y1='21' x2='16.5' y2='16.5'/%3E%3C/svg%3E") no-repeat 12px center;}
.zoekbalk input::placeholder{color:#8a97a3;}
.zoekbalk input:focus{outline:2px solid #8ab4ff;}
.zoekbalk input::-webkit-search-cancel-button,.zoekbalk input::-webkit-search-decoration{-webkit-appearance:none;appearance:none;}

/* Zoekbalk bovenin */
.topbalk{position:sticky;top:0;z-index:30;background:var(--grijs);padding:14px 32px;margin:-26px -32px 22px;border-bottom:1px solid var(--rand);}
.topzoek{display:flex;gap:10px;max-width:760px;}
.topzoek input{flex:1;height:44px;border:1px solid var(--rand);border-radius:11px;padding:0 14px 0 42px;font-size:15px;color:#1f2733;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238a97a3' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cline x1='21' y1='21' x2='16.5' y2='16.5'/%3E%3C/svg%3E") no-repeat 15px center;box-sizing:border-box;}
.topzoek input::placeholder{color:#8a97a3;}
.topzoek input:focus{outline:2px solid #8ab4ff;border-color:#8ab4ff;}
.topzoek input::-webkit-search-cancel-button{-webkit-appearance:none;appearance:none;}
.topzoek button{height:44px;border:none;background:var(--accent);color:#fff;border-radius:11px;padding:0 20px;font-weight:700;font-size:14px;cursor:pointer;}
.topzoek button:hover{background:#2258c9;}

/* Zijbalk vast in beeld terwijl de inhoud scrollt */
.zijbalk{position:sticky;top:0;height:100vh;align-self:flex-start;overflow-y:auto;}