/* =========================
   STEP 4 – AFWERKING
   (accordion panel + same visual language)
   ========================= */

.stepRow--dark-4{
  background: var(--soft);
  border: 1px solid var(--stroke);
}

.stepRow--dark-4 .stepNum{
  border-color: var(--stroke-strong);
  color: var(--heading);
  background: transparent;
}

.stepRow--dark-4 .stepText{
  color: var(--heading);
}

.stepRow--dark-4 .stepArrow{
  width:48px;
  height:28px;
  border-radius: 8px;
  background: var(--card);
  border: 1px solid var(--stroke);
  display:grid;
  place-items:center;
}

.stepRow--dark-4 .stepArrow svg{
  width:14px;
  height:14px;
  fill: var(--heading);
  opacity:0.90;
  transition: transform 180ms ease;
}

.step4Panel{
  overflow:hidden;
  max-height:0;
  transition:max-height 250ms ease;
  background: var(--card);
  border-radius: 0 0 var(--radius) var(--radius);
  border: 1px solid var(--stroke);
  border-top: 0;
  margin-top: 0;
  box-shadow: 0 8px 20px rgba(0,0,0,0.04);
}

.step4Inner{
  padding: 10px 10px 14px;
}

/* Collapsible: Extra keuzes */
.extraDetails{
  margin-top: 12px;
  border: 1px solid var(--stroke);
  border-radius: 12px;
  background: var(--soft);
}

.extraSummary{
  padding: 10px 12px;
  cursor: pointer;
  user-select: none;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.extraSummary::-webkit-details-marker{ display:none; }
.extraSummary::marker{ content: ""; }

.extraChevron{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}

.extraChevron svg{
  width: 18px;
  height: 18px;
  display: block;
  fill: currentColor;
  opacity: 0.9;
  transition: transform var(--t-fast) var(--ease-out);
}

.extraDetails[open] .extraChevron svg{
  transform: rotate(180deg);
}

.extraDetails[open] > .extraSummary{
  border-bottom: 1px solid var(--stroke);
}

.extraBody{
  padding: 0 10px 12px;
}

@media (max-width: 480px){
  .extraSummary{ font-size: 11px; }
}

.ralPickerWrap {
  margin-top: 10px;
}

.ralHexInput {
  width: 100%;
  height: 44px;
  border-radius: 12px;
}

@media (max-width: 480px){
  .step4Inner{
    padding: 8px 8px 10px;
  }
}

/* =========================
   DESKTOP ENHANCEMENTS
   ========================= */

@media (min-width: 1025px){
  .step4Inner{
    padding: 24px 28px 28px;
  }

  .extraDetails{
    border-radius: 14px;
    margin-top: 16px;
  }

  .extraSummary{
    padding: 14px 16px;
    font-size: 14px;
    letter-spacing: 0.04em;
    transition: background var(--t-fast) var(--ease-out);
  }

  .extraSummary:hover{
    background: color-mix(in srgb, var(--heading) 3%, transparent);
  }

  .extraBody{
    padding: 4px 16px 16px;
  }

  .extraChevron{
    width: 22px;
    height: 22px;
  }

  .extraChevron svg{
    width: 22px;
    height: 22px;
  }

  .ralHexInput{
    height: 48px;
    font-size: 16px;
  }
}

/* Large desktop (1440px+) */
@media (min-width: 1400px){
  .step4Inner{
    padding: 28px 32px 32px;
  }

  .extraSummary{
    padding: 16px 18px;
    font-size: 15px;
  }

  .extraBody{
    padding: 4px 18px 18px;
  }
}