/* ────────────────────────────────────────────────────────────────────────── 
   app.css — Alimentatietool 2026
   Premium "Deep Green & Action Orange" Design System
   ────────────────────────────────────────────────────────────────────────── */

:root {
  /* Kleurenpalet */
  --kleur-primair: #1e6b4a;
  --kleur-primair-donker: #164f36;
  --kleur-primair-licht: #e8f4ee;
  --kleur-accent: #d35400; /* Action Orange */
  --kleur-accent-donker: #bf4d00;
  
  --kleur-blauw: #1a5282;
  --kleur-blauw-licht: #e8f0f8;
  
  --kleur-waarschuwing: #c85a18;
  --kleur-waarschuwing-licht: #fdf3ec;
  
  --kleur-tekst: #1a1a1a;
  --kleur-tekst-licht: #555555;
  --kleur-tekst-muted: #888888;
  
  --kleur-rand: #d8e0d5;
  --kleur-achtergrond: #f4f7f5;
  --kleur-wit: #ffffff;

  /* Systeem-tokens */
  --radius: 12px;
  --radius-klein: 8px;
  --radius-rond: 30px;
  --schaduw: 0 4px 12px rgba(0,0,0,0.05);
  --schaduw-hover: 0 8px 24px rgba(0,0,0,0.1);
  --schaduw-accent: 0 4px 10px rgba(211,84,0,0.25);

  --lettertype: 'Inter', system-ui, -apple-system, sans-serif;
  --regelafstand: 1.6;
  --max-breedte: 920px;
}

/* ── Basis & Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--lettertype);
  font-size: 15px;
  line-height: var(--regelafstand);
  color: var(--kleur-tekst);
  background: var(--kleur-achtergrond);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.app-wrapper {
  max-width: var(--max-breedte);
  margin: 0 auto;
  padding: 20px;
}

/* ── Header ── */
.app-header {
  background: var(--kleur-primair);
  color: var(--kleur-wit);
  padding: 25px 35px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 25px;
  box-shadow: var(--schaduw);
}
.app-header h1 { font-size: 1.5rem; font-weight: 800; }
.app-header .jaar-badge {
  background: rgba(255,255,255,0.15);
  padding: 5px 14px;
  border-radius: var(--radius-rond);
  font-size: 0.82rem;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,0.2);
}

/* ── Voortgang ── */
.voortgang-balk {
  background: white;
  padding: 10px 20px;
  display: flex;
  gap: 10px;
  border-radius: var(--radius-rond);
  margin-bottom: 30px;
  box-shadow: var(--schaduw);
  border: 1px solid var(--kleur-rand);
}
.voortgang-stap {
  flex: 1;
  padding: 8px 4px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--kleur-tekst-muted);
  border-radius: var(--radius-rond);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 600;
}
.voortgang-stap.actief {
  background: var(--kleur-primair-licht);
  color: var(--kleur-primair);
}
.voortgang-stap.voltooid {
  color: var(--kleur-primair);
}

/* ── Validatie Fouten Box ── */
.validatie-fouten {
  background: #fdf3ec;
  border-left: 5px solid var(--kleur-waarschuwing);
  padding: 24px;
  border-radius: var(--radius-klein);
  margin-bottom: 30px;
  box-shadow: 0 4px 15px rgba(200,90,24,0.1);
}
.validatie-fouten-titel {
  font-weight: 800;
  color: var(--kleur-waarschuwing);
  font-size: 1.1rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.validatie-fouten-titel::before {
  content: '⚠️';
  font-size: 1.2rem;
}
.validatie-fouten p.fout {
  color: #a04000;
  font-size: 0.95rem;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.validatie-fouten p.fout::before {
  content: '•';
  font-weight: 800;
}

/* ── Step Banners (Ouder Modus) ── */
.stap-banner {
  background: transparent;
  display: flex;
  align-items: center;
  gap: 15px;
  margin: 40px 0 15px 0;
  padding: 0 5px;
}
.stap-nummer {
  width: 40px;
  height: 40px;
  background: var(--kleur-primair);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  box-shadow: 0 4px 10px rgba(30,107,74,0.3);
}
.stap-banner-titel {
  color: var(--kleur-primair);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ── Kaarten ── */
.stap-kaart {
  background: var(--kleur-wit);
  border-radius: var(--radius);
  padding: 35px;
  box-shadow: var(--schaduw);
  margin-bottom: 40px;
  border: 1px solid rgba(0,0,0,0.02);
  transition: transform 0.2s;
}
.stap-verborgen { display: none !important; }
.stap-actief { display: block; }

.stap-titel {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--kleur-tekst);
  margin-bottom: 8px;
}
.stap-omschrijving {
  color: var(--kleur-tekst-licht);
  margin-bottom: 30px;
  font-size: 0.95rem;
}

/* ── Formulierelementen ── */
.form-groep { margin-bottom: 24px; }
.form-groep label {
  display: block;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--kleur-tekst);
  margin-bottom: 8px;
}
.helptekst {
  font-size: 0.8rem;
  color: var(--kleur-tekst-muted);
  margin-top: 6px;
  line-height: 1.4;
}

input[type="number"],
input[type="text"],
select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--kleur-rand);
  border-radius: var(--radius-klein);
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.2s;
  background: var(--kleur-wit);
}
input:focus, select:focus {
  outline: none;
  border-color: var(--kleur-primair);
  box-shadow: 0 0 0 4px rgba(30,107,74,0.1);
}
input.veld-fout-actief, select.veld-fout-actief {
  border-color: var(--kleur-waarschuwing) !important;
  background-color: #fffaf7;
}
.veld-fout {
  color: var(--kleur-waarschuwing);
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 4px;
  display: block;
}

/* ── Knoppen ── */
.btn-primair {
  background: var(--kleur-accent);
  color: white;
  border: none;
  padding: 14px 32px;
  border-radius: var(--radius-rond);
  font-weight: 800;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: var(--schaduw-accent);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.btn-primair:hover {
  background: var(--kleur-accent-donker);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(211,84,0,0.35);
}
.btn-ghost {
  background: transparent;
  color: var(--kleur-tekst-licht);
  border: 2px solid var(--kleur-rand);
  padding: 12px 24px;
  border-radius: var(--radius-rond);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-ghost:hover {
  background: var(--kleur-achtergrond);
  color: var(--kleur-tekst);
}
.btn-secondair {
  background: var(--kleur-primair-licht);
  color: var(--kleur-primair);
  border: 2px solid var(--kleur-primair);
  padding: 10px 20px;
  border-radius: var(--radius-rond);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-secondair:hover {
  background: var(--kleur-primair);
  color: white;
  transform: translateY(-1px);
}

/* ── Segmented Control ── */
.segment-control {
  display: flex;
  background: var(--kleur-achtergrond);
  padding: 4px;
  border-radius: var(--radius-klein);
  gap: 4px;
}
.segment-control button {
  flex: 1;
  border: none;
  padding: 10px;
  border-radius: 6px;
  background: transparent;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--kleur-tekst-licht);
}
.segment-control button.actief {
  background: var(--kleur-wit);
  color: var(--kleur-primair);
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

/* ── Toggles ── */
.toggle-wrapper { display: flex; align-items: center; gap: 12px; }
.toggle-wrapper input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.toggle-schakelaar {
  width: 48px;
  height: 26px;
  background: var(--kleur-rand);
  border-radius: 13px;
  position: relative;
  cursor: pointer;
  transition: background 0.3s;
}
.toggle-schakelaar::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 4px;
  width: 18px;
  height: 18px;
  background: white;
  border-radius: 50%;
  transition: transform 0.3s;
}
input[type="checkbox"]:checked + .toggle-schakelaar {
  background: var(--kleur-primair);
}
input[type="checkbox"]:checked + .toggle-schakelaar::after {
  transform: translateX(22px);
}

/* ── Nachten Picker ── */
#nachten_picker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  background: var(--kleur-achtergrond);
  padding: 12px;
  border-radius: var(--radius-klein);
  margin: 15px 0;
  border: 1px solid var(--kleur-rand);
}
.nacht-btn {
  width: 44px;
  height: 44px;
  border: 2px solid var(--kleur-rand);
  background: white;
  border-radius: var(--radius-klein);
  font-weight: 700;
  font-size: 1rem;
  color: var(--kleur-tekst-licht);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.nacht-btn:hover {
  border-color: var(--kleur-primair);
  color: var(--kleur-primair);
  transform: translateY(-2px);
}
.nacht-btn.actief {
  background: var(--kleur-primair);
  color: white;
  border-color: var(--kleur-primair);
  box-shadow: 0 4px 10px rgba(30,107,74,0.3);
}
#zorgkorting_preview {
  font-weight: 700;
  color: var(--kleur-primair);
  margin-top: 5px;
  font-size: 0.95rem;
}

/* ── Rollen ── */
.rol-betaler { border-left: 5px solid var(--kleur-blauw); background: var(--kleur-blauw-licht); padding: 20px; border-radius: var(--radius-klein); margin-bottom: 25px; }
.rol-ontvanger { border-left: 5px solid var(--kleur-primair); background: var(--kleur-primair-licht); padding: 20px; border-radius: var(--radius-klein); margin-bottom: 25px; }

/* ── Resultaten UI ── */
#resultaten_container { margin-top: 50px; }
.b1-summary-box {
  background: #fdfdfd;
  border: 1px solid var(--kleur-rand);
  border-left: 6px solid var(--kleur-primair);
  padding: 30px;
  border-radius: var(--radius);
  margin-bottom: 30px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}
.b1-summary-header {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--kleur-primair);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.b1-stap {
  display: grid;
  grid-template-columns: 36px 1fr 1fr;
  gap: 0 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--kleur-rand);
  align-items: start;
}
.b1-stap:last-of-type { border-bottom: none; }
.b1-stap-nummer {
  width: 32px;
  height: 32px;
  background: var(--kleur-primair);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.b1-stap-waarschuwing .b1-stap-nummer { background: var(--kleur-accent); }
.b1-stap-label {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--kleur-primair);
  padding-top: 6px;
}
.b1-stap-body {
  line-height: 1.6;
  color: var(--kleur-tekst);
  padding-top: 4px;
}
.b1-bedrag {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--kleur-primair);
}
.b1-per-maand { font-size: 0.8rem; font-weight: 500; opacity: 0.7; }
.b1-sub {
  font-size: 0.82rem;
  color: var(--kleur-tekst-licht);
  margin-top: 4px;
  line-height: 1.45;
}
.b1-inkomens-rij {
  display: flex;
  gap: 20px;
  margin-top: 6px;
  flex-wrap: wrap;
}
.b1-inkomen-blok {
  background: var(--kleur-primair-licht);
  border-radius: 8px;
  padding: 10px 16px;
  flex: 1;
  min-width: 130px;
}
.b1-inkomen-rol {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--kleur-primair);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.b1-uitkomst {
  margin-top: 22px;
  padding: 24px;
  background: var(--kleur-primair);
  color: white;
  border-radius: var(--radius);
  text-align: center;
}
.b1-uitkomst-label {
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0.85;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}
.b1-uitkomst-bedrag {
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}
.b1-uitkomst-sub {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-top: 4px;
}

/* ── Taal vlagknoppen ── */
.taal-knoppen {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
}
.taal-knop {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 4px;
  padding: 4px;
  cursor: pointer;
  line-height: 0;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.taal-knop img {
  display: block;
  border-radius: 2px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  width: 24px;
  height: auto;
  pointer-events: none;
}
.taal-knop:hover {
  background: rgba(255,255,255,0.25);
  border-color: rgba(255,255,255,0.5);
  transform: translateY(-1px);
}
.taal-knop.actief {
  background: white;
  border-color: white;
  box-shadow: 0 0 10px rgba(255,255,255,0.4);
}
.taal-knop.actief img {
  box-shadow: none;
}

/* Legacy: verberg oud select-element indien nog aanwezig */
select#taal_selector { display: none; }

.uitkomst-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
  margin-top: 30px;
}
@media (max-width: 768px) {
  .uitkomst-grid { grid-template-columns: 1fr; }
}
.uitkomst-kaart {
  padding: 30px;
  border-radius: var(--radius);
  margin-bottom: 10px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.uitkomst-kaart.primair { background: var(--kleur-primair); color: white; margin-bottom: 20px; width: 100%; }
.uitkomst-bedrag { font-size: 2.2rem; font-weight: 900; }
.uitkomst-label { font-size: 0.9rem; font-weight: 600; opacity: 0.9; margin-bottom: 5px; }
.uitkomst-sub { font-size: 0.8rem; opacity: 0.8; margin-top: 4px; }

/* ── Verdeling Breakdown ── */
.verdeling-breakdown {
  background: var(--kleur-primair-licht);
  border: 1px solid var(--kleur-rand);
  border-left: 4px solid var(--kleur-primair);
  border-radius: var(--radius-klein);
  padding: 20px 24px;
  margin-top: 10px;
}
.verdeling-titel {
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--kleur-primair);
  margin-bottom: 14px;
}
.verdeling-tabel {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.93rem;
}
.verdeling-tabel td {
  padding: 7px 0;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  color: var(--kleur-tekst);
}
.verdeling-tabel tr:last-child td { border-bottom: none; }
.verdeling-tabel .vb-label { width: 70%; }
.verdeling-tabel .vb-bedrag { text-align: right; font-weight: 700; color: var(--kleur-blauw); white-space: nowrap; }
.verdeling-tabel .vb-min { color: var(--kleur-primair); }
.verdeling-tabel tr.vb-sub td { color: var(--kleur-tekst-licht); font-size: 0.88rem; padding-left: 16px; }
.verdeling-tabel tr.vb-aftrek td { color: var(--kleur-primair); }
.verdeling-tabel tr.vb-info td { color: var(--kleur-waarschuwing); font-size: 0.88rem; }
.verdeling-tabel tr.vb-totaal td {
  font-weight: 800;
  font-size: 1rem;
  color: var(--kleur-primair);
  border-top: 2px solid var(--kleur-primair);
  border-bottom: none;
  padding-top: 10px;
}
.verdeling-tabel tr.vb-totaal .vb-bedrag { color: var(--kleur-primair); font-size: 1.1rem; }
.vb-hint { font-size: 0.82rem; font-weight: 400; color: var(--kleur-tekst-muted); }

/* ── Budget optelling in kaart ── */
.budget-optelling {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3px 12px;
  margin-top: 10px;
  font-size: 0.82rem;
  opacity: 1 !important;
}
.budget-optelling span { opacity: 0.85; }
.budget-optelling span:nth-child(even) { text-align: right; font-weight: 600; white-space: nowrap; }
.budget-totaal-lijn {
  border-top: 1px solid currentColor;
  padding-top: 4px;
  margin-top: 2px;
  font-weight: 800 !important;
  opacity: 1 !important;
}

/* ── Scenario Cards (Wat-Als) ── */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 20px;
}
.scenario-card {
  background: white;
  border: 1px solid var(--kleur-rand);
  border-radius: var(--radius-klein);
  padding: 16px;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  overflow: hidden;
}
.scenario-card:hover {
  border-color: var(--kleur-primair);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transform: translateY(-2px);
}
.scenario-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--kleur-tekst);
}
.scenario-card-icon {
  font-size: 1.2rem;
  width: 24px;
  text-align: center;
}
.scenario-card-resultaat {
  font-size: 1.05rem;
  font-weight: 800;
}
.scenario-card-delta {
  font-size: 0.85rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
  display: inline-block;
  margin-left: 6px;
}
.delta-positief { background: #feebeb; color: #c0392b; } /* Verhoging alimentatie */
.delta-negatief { background: #e8f5e9; color: #1b5e20; } /* Verlaging alimentatie */
.delta-neutraal { background: #f5f5f5; color: #666; }

/* ── Expert Tabel ── */
.expert-blok {
  background: #fcfdfc;
  border: 1px solid var(--kleur-rand);
  padding: 25px;
  border-radius: var(--radius);
  margin-top: 30px;
}
.expert-blok h4 {
  color: var(--kleur-primair);
  margin: 20px 0 10px 0;
  font-size: 1.1rem;
  border-bottom: 2px solid var(--kleur-primair-licht);
  padding-bottom: 4px;
}
.expert-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin-bottom: 20px;
}
.expert-table th {
  text-align: left;
  padding: 10px;
  background: var(--kleur-primair-licht);
  color: var(--kleur-primair);
  font-weight: 700;
  border-bottom: 2px solid var(--kleur-rand);
}
.expert-table td {
  padding: 10px;
  border-bottom: 1px solid var(--kleur-rand);
  color: var(--kleur-tekst-licht);
}
.expert-table tr:last-child td { border-bottom: none; }
.expert-table tr:nth-child(even) { background: #fafafa; }
.expert-table .label-cel { font-weight: 600; color: var(--kleur-tekst); width: 40%; }
.expert-table .waarde-cel { font-family: 'Courier New', monospace; font-weight: 700; color: var(--kleur-blauw); }

/* ── Ouder Modus Logica ── */
body.ouder-modus .pro-only { display: none !important; }
body.ouder-modus .stap-kaart[data-stap="1"],
body.ouder-modus .stap-kaart[data-stap="2"],
body.ouder-modus .stap-kaart[data-stap="3"],
body.ouder-modus .stap-kaart[data-stap="4"],
body.ouder-modus .stap-kaart[data-stap="5"] { 
  display: block !important; 
  margin-bottom: 30px; 
}
body.ouder-modus .navigatie-rij { display: none !important; }
body.ouder-modus .stap-kaart[data-stap="5"] .navigatie-rij { display: flex !important; justify-content: flex-end; }
body.ouder-modus .voortgang-balk { display: none !important; }

/* ── Responsief ── */
@media (max-width: 768px) {
  .app-header { padding: 20px; flex-direction: column; align-items: flex-start; }
  .stap-kaart { padding: 25px 20px; }
  .form-grid-2 { grid-template-columns: 1fr; }
  .b1-stap { grid-template-columns: 32px 1fr; grid-template-rows: auto auto; }
  .b1-stap-body { grid-column: 2 / 3; }
  .b1-inkomens-rij { flex-direction: column; }
  .taal-knoppen { gap: 3px; }
  .taal-knop { font-size: 1.1rem; padding: 2px 4px; }
}

.verborgen { display: none !important; }
.sectie { margin-top: 15px; }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; width: 100vw; height: 100vh;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(5px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s;
}
.modal-box {
  background: white;
  padding: 40px;
  border-radius: var(--radius);
  max-width: 500px;
  width: 90%;
  box-shadow: 0 15px 50px rgba(0,0,0,0.2);
  text-align: center;
}
.modal-titel {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--kleur-primair);
  margin-bottom: 15px;
}
.modal-lijst {
  text-align: left;
  background: var(--kleur-achtergrond);
  padding: 15px 20px;
  border-radius: var(--radius-klein);
  margin: 20px 0;
  font-size: 0.9rem;
  color: var(--kleur-tekst-licht);
}
.modal-lijst p { margin-bottom: 5px; }
.modal-lijst p::before { content: '• '; color: var(--kleur-accent); font-weight: 800; }
.modal-acties {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.blok-rekenspoor { margin-top: 60px; }
.rekenstap-groep {
  background: white;
  border: 1px solid var(--kleur-rand);
  margin-bottom: 8px;
  border-radius: var(--radius-klein);
  overflow: hidden;
  transition: all 0.2s ease;
}
.rekenstap-groep[open] {
  box-shadow: 0 4px 15px rgba(0,0,0,0.04);
  margin-bottom: 15px;
  border-color: var(--kleur-primair-licht);
}
.rekenstap-groep summary {
  padding: 14px 20px;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  background: #fff;
  font-size: 0.95rem;
}
.rekenstap-groep summary::-webkit-details-marker { display: none; } /* Hide default triangle */
.rekenstap-groep summary::after {
  content: '▼';
  font-size: 0.75rem;
  opacity: 0.4;
  transition: transform 0.2s;
  color: var(--kleur-primair);
}
.rekenstap-groep[open] summary::after {
  transform: rotate(180deg);
  opacity: 1;
}
.rekenstap-groep summary:hover {
  background: #fdfdfd;
}
.rekenstap-titel {
  font-weight: 700;
  color: var(--kleur-tekst);
  min-width: 30%;
}
.rekenstap-samenvatting {
  flex-grow: 1;
  color: var(--kleur-tekst-licht);
  font-size: 0.88rem;
  padding: 0 15px;
}
.rekenstap-tabel {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  border-top: 1px solid var(--kleur-rand);
}
.rekenstap-tabel th {
  text-align: left;
  padding: 10px 20px;
  background: #f9fbfb;
  color: var(--kleur-tekst-licht);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}
.rekenstap-tabel td {
  padding: 12px 20px;
  border-bottom: 1px solid #f5f5f5;
  vertical-align: top;
}
.rekenstap-tabel .bedrag-cel { font-weight: 700; color: var(--kleur-blauw); text-align: right; white-space: nowrap; }
.rekenstap-tabel .toelichting-cel { color: var(--kleur-tekst-licht); line-height: 1.4; width: 60%; }
.rekenstap-tabel tr:last-child td { border-bottom: none; }