/* ============================================================
   Gedeelde navigatiebalk en voettekst.
   Zelfstandig opgezet met een eigen naamruimte, zodat home.css en
   style.css elkaar hier niet in de weg zitten.

   Kleuren komen uit de pagina zelf via --ink, --muted, --line en
   --brand. Die betekenen in beide stylesheets hetzelfde. De grond
   verschilt wel per pagina, dus die komt via --nav-ground, dat elke
   stylesheet zelf zet. Zo volgt de balk automatisch de donkere modus
   van de homepage zonder de overige pagina's te raken.
   ============================================================ */

.sitenav,
.sitefooter {
  --nv-ink:     var(--ink, #0a1826);
  --nv-muted:   var(--muted, #5c6c7e);
  --nv-line:    var(--line, #e8e3d9);
  --nv-brand:   var(--brand, #1b6fe0);
  --nv-ground:  var(--nav-ground, #faf8f4);
  --nv-surface: var(--nav-surface, #ffffff);
  --nv-shadow:  0 2px 4px rgba(10, 24, 38, .05), 0 24px 44px -22px rgba(10, 24, 38, .30);
  --nv-font:    "SF Pro Display", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* ---------------------------------------------------------- balk */

.sitenav {
  position: sticky;
  top: 0;
  z-index: 50;
  font-family: var(--nv-font);
  background: color-mix(in srgb, var(--nv-ground) 76%, transparent);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  transition: background 240ms ease;
}
.sitenav.is-scrolled { background: color-mix(in srgb, var(--nv-ground) 90%, transparent); }

/* Randeffect dat pas verschijnt zodra er inhoud onder de balk schuift,
   in plaats van een permanente streep. */
.sitenav::after {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 100%;
  height: 22px;
  background: linear-gradient(to bottom, color-mix(in srgb, var(--nv-ground) 88%, transparent), transparent);
  opacity: 0;
  transition: opacity 260ms ease;
  pointer-events: none;
}
.sitenav.is-scrolled::after { opacity: 1; }

.sitenav-in {
  width: min(1160px, 92vw);
  margin: 0 auto;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.sitenav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 760;
  font-size: 22px;
  letter-spacing: -.03em;
  color: var(--nv-ink);
  text-decoration: none;
  flex: none;
}
.sitenav-brand img { display: block; width: 32px; height: 32px; }

.sitenav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-left: 8px;
}
.sitenav-links > a,
.sitenav-dd-trigger {
  color: var(--nv-muted);
  font-weight: 560;
  font-size: 15px;
  text-decoration: none;
  white-space: nowrap;
}
.sitenav-links > a:hover,
.sitenav-dd-trigger:hover { color: var(--nv-ink); }

.sitenav-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ---------------------------------------------------------- uitklapmenu's */

.sitenav-dd { position: relative; display: flex; align-items: center; }
.sitenav-dd-trigger {
  border: 0; background: none; padding: 0; margin: 0;
  font-family: inherit; cursor: pointer;
  display: inline-flex; align-items: center; gap: 5px;
}
.sitenav-caret { font-size: 11px; opacity: .75; }

.sitenav-dd-menu,
.sitenav-langmenu {
  position: absolute;
  top: calc(100% + 14px);
  display: none;
  min-width: 210px;
  padding: 6px;
  border: 1px solid var(--nv-line);
  border-radius: 14px;
  background: var(--nv-surface);
  box-shadow: var(--nv-shadow);
  z-index: 60;
}
.sitenav-dd-menu { left: 0; }
.sitenav-langmenu { right: 0; min-width: 172px; }
.sitenav-dd-menu.is-open,
.sitenav-langmenu.is-open { display: grid; gap: 2px; }

.sitenav-dd-menu a,
.sitenav-langmenu a {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 11px;
  border-radius: 9px;
  color: var(--nv-muted);
  font-size: 14px;
  text-decoration: none;
}
.sitenav-dd-menu a:hover,
.sitenav-langmenu a:hover {
  background: color-mix(in srgb, var(--nv-brand) 9%, transparent);
  color: var(--nv-ink);
}

.sitenav-lang { position: relative; display: flex; }
.sitenav-langbtn {
  height: 38px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--nv-line);
  background: var(--nv-surface);
  color: var(--nv-muted);
  font-family: inherit;
  font-size: 14px;
  display: inline-flex; align-items: center; gap: 6px;
  cursor: pointer;
}
.sitenav-langbtn:hover { color: var(--nv-ink); }

/* ---------------------------------------------------------- knoppen */

.sitenav-btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 38px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 14px;
  font-weight: 620;
  letter-spacing: -.006em;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 110ms cubic-bezier(.22, .61, .36, 1), background 160ms ease;
}
/* Reactie bij het indrukken, niet pas bij het loslaten. */
.sitenav-btn:active { transform: scale(.968); }

.sitenav-btn-ghost {
  background: var(--nv-surface);
  border-color: var(--nv-line);
  color: var(--nv-ink);
}
.sitenav-btn-ghost:hover { border-color: var(--nv-muted); }

.sitenav-btn-primary { background: var(--nv-brand); color: #fff; }
.sitenav-btn-primary:hover { background: color-mix(in srgb, var(--nv-brand) 84%, #000); }

.sitenav a:focus-visible,
.sitenav button:focus-visible {
  outline: 2px solid var(--nv-brand);
  outline-offset: 3px;
  border-radius: 8px;
}

/* ---------------------------------------------------------- hamburger */

.sitenav-burger {
  display: none;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  border: 1px solid var(--nv-line);
  border-radius: 11px;
  background: var(--nv-surface);
  color: var(--nv-ink);
  font-size: 17px; line-height: 1;
  cursor: pointer;
}
.sitenav-panelonly { display: none; }

@media (max-width: 900px) {
  .sitenav-links { display: none; }
  .sitenav-btn-ghost { display: none; }
  .sitenav-burger { display: inline-flex; }

  .sitenav-links.is-open {
    display: flex;
    flex-direction: column;
    /* De balkregel zet align-items:center voor de horizontale stand. In
       een kolom zou dat elk item laten krimpen tot de tekstbreedte en
       midden uitlijnen, waardoor ook de hover-achtergrond niet de hele
       regel beslaat. */
    align-items: stretch;
    text-align: left;
    gap: 2px;
    position: absolute;
    top: calc(100% + 8px);
    right: max(4vw, 16px);
    left: auto;
    margin-left: 0;
    width: min(320px, calc(100vw - 32px));
    padding: 8px;
    border: 1px solid var(--nv-line);
    border-radius: 16px;
    background: var(--nv-surface);
    box-shadow: var(--nv-shadow);
    z-index: 60;
  }
  .sitenav-links.is-open > a {
    padding: 11px 12px;
    border-radius: 10px;
    font-size: 16px;
    color: var(--nv-ink);
  }
  .sitenav-links.is-open > a:hover { background: color-mix(in srgb, var(--nv-brand) 9%, transparent); }
  .sitenav-links.is-open .sitenav-panelonly { display: block; }

  /* Het doelgroepmenu staat op mobiel gewoon uitgeklapt in het paneel. */
  .sitenav-links.is-open .sitenav-dd { display: block; }
  .sitenav-links.is-open .sitenav-dd-trigger {
    width: 100%;
    padding: 12px 12px 5px;
    font-size: 12px;
    letter-spacing: .09em;
    text-transform: uppercase;
    pointer-events: none;
  }
  .sitenav-links.is-open .sitenav-dd-trigger .sitenav-caret { display: none; }
  .sitenav-links.is-open .sitenav-dd-menu {
    position: static;
    display: grid;
    gap: 2px;
    min-width: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: none;
    box-shadow: none;
  }
  .sitenav-links.is-open .sitenav-dd-menu a { padding: 11px 12px; font-size: 16px; color: var(--nv-ink); }
}

@media (max-width: 420px) {
  .sitenav-in { gap: 10px; }
  .sitenav-brand span { display: none; }
}

/* ============================================================
   Voettekst
   ============================================================ */

.sitefooter {
  font-family: var(--nv-font);
  border-top: 1px solid var(--nv-line);
  padding: 52px 0 30px;
  margin-top: 40px;
}
.sitefooter-in { width: min(1160px, 92vw); margin: 0 auto; }

.sitefooter-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 40px;
}
@media (max-width: 900px) { .sitefooter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .sitefooter-grid { grid-template-columns: 1fr; } }

.sitefooter-brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 760; font-size: 21px; letter-spacing: -.03em;
  color: var(--nv-ink); text-decoration: none;
}
.sitefooter-brand img { display: block; width: 30px; height: 30px; }
.sitefooter-about { color: var(--nv-muted); font-size: 14px; line-height: 1.6; max-width: 34ch; margin: 12px 0 0; }

.sitefooter-col { display: flex; flex-direction: column; gap: 9px; }
.sitefooter-col h2 {
  font-size: 13px; font-weight: 680; letter-spacing: .02em;
  color: var(--nv-ink); margin: 0 0 2px;
}
.sitefooter-col a { color: var(--nv-muted); font-size: 14px; text-decoration: none; }
.sitefooter-col a:hover { color: var(--nv-brand); }

.sitefooter-base {
  margin-top: 42px;
  padding-top: 20px;
  border-top: 1px solid var(--nv-line);
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 22px;
  color: var(--nv-muted); font-size: 13px;
}
.sitefooter-base a { color: var(--nv-muted); text-decoration: none; }
.sitefooter-base a:hover { color: var(--nv-brand); }
.sitefooter-base .sitefooter-spacer { margin-left: auto; }

.sitefooter a:focus-visible {
  outline: 2px solid var(--nv-brand);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------------------------------------------------------- toegankelijkheid */

@media (prefers-reduced-motion: reduce) {
  .sitenav, .sitenav::after, .sitenav-btn { transition: none; }
  .sitenav-btn:active { transform: none; }
}

@media (prefers-reduced-transparency: reduce) {
  .sitenav {
    background: var(--nv-ground);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

@media (prefers-contrast: more) {
  .sitenav {
    background: var(--nv-ground);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom: 1px solid var(--nv-ink);
  }
  .sitenav-links > a, .sitenav-dd-trigger, .sitenav-langbtn { color: var(--nv-ink); }
}