/* ==========================================================
   tabs.css – ProRail stijl tabbalk
   ========================================================== */

#scherm-hoofd {
  max-width: 760px;
  margin: 0 auto 1rem;
  background: #fff;
  border: 1px solid #D0D3D8;
  border-radius: 6px;
  overflow: hidden;
  padding: 0;
  box-shadow: 0 1px 4px rgba(0,0,0,0.10);
}

.tab-balk {
  display: flex;
  background: #44546A;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.tab-balk::-webkit-scrollbar { display: none; }

.tab-knop {
  flex: 1;
  min-width: 100px;
  padding: 0.65rem 0.8rem;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  border: none;
  border-bottom: 3px solid transparent;
  background: transparent;
  color: rgba(255,255,255,0.70);
  cursor: pointer;
  margin-top: 0;
  border-radius: 0;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.tab-knop:hover  { background: rgba(255,255,255,0.10); color: #fff; }
.tab-knop.actief { background: rgba(255,255,255,0.08); color: #fff; border-bottom-color: #BE1238; }

.tab-inhoud { padding: 1.1rem 1.25rem; }