/**
 * Kids Digitaal - Leer Engine v3
 * ULTRA MODERN - Beter dan Duolingo
 */

/* ===== DESIGN SYSTEM ===== */
:root {
  /* Brand Colors - Vibrant & Fun */
  --kd-primary: #4BADFF;
  --kd-primary-dark: #2E8FD9;
  --kd-primary-light: #E3F3FF;
  --kd-primary-glow: rgba(75, 173, 255, 0.5);
  
  --kd-success: #00D68F;
  --kd-success-dark: #00B377;
  --kd-success-light: #E0FFF5;
  --kd-success-glow: rgba(0, 214, 143, 0.5);
  
  --kd-error: #FF4757;
  --kd-error-dark: #E8303F;
  --kd-error-light: #FFE8EA;
  --kd-error-glow: rgba(255, 71, 87, 0.5);
  
  --kd-warning: #FFBE0B;
  --kd-purple: #A855F7;
  --kd-purple-glow: rgba(168, 85, 247, 0.5);
  
  /* Neutrals */
  --kd-text: #1A1D29;
  --kd-text-secondary: #6B7280;
  --kd-bg: #FFFFFF;
  --kd-card: #FFFFFF;
  --kd-border: #E5E7EB;
  
  /* Streak Colors */
  --streak-1: #4BADFF;
  --streak-2: #00D68F;
  --streak-3: #FFBE0B;
  --streak-4: #FF6B35;
  --streak-5: #A855F7;
  
  /* Animation Curves - Buttery Smooth */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-in-out-circ: cubic-bezier(0.85, 0, 0.15, 1);
  --spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Sizing */
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 40px var(--kd-primary-glow);
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body.kd-leer-fullscreen {
  font-family: "Baloo 2", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background: #fff;
  color: var(--kd-text);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== APP CONTAINER ===== */
.kd-leer-engine {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Ambient background gradient verborgen */
.kd-leer-engine::before {
  display: none;
}

/* ===== LOADING STATE ===== */
.kd-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  gap: 24px;
}

.kd-loader {
  width: 64px;
  height: 64px;
  position: relative;
}

.kd-loader-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 4px solid transparent;
  border-top-color: var(--kd-primary);
  animation: loaderSpin 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

.kd-loader-ring:nth-child(2) {
  inset: 8px;
  border-top-color: var(--kd-success);
  animation-delay: -0.15s;
}

.kd-loader-ring:nth-child(3) {
  inset: 16px;
  border-top-color: var(--kd-purple);
  animation-delay: -0.3s;
}

@keyframes loaderSpin {
  to { transform: rotate(360deg); }
}

.kd-loading-text {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--kd-text-secondary);
  animation: loadingPulse 1.5s ease-in-out infinite;
}

@keyframes loadingPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* ===== HEADER ===== */
.kd-engine-header {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  padding: 15px 24px;
  padding-left: max(24px, calc((100% - 950px) / 2 + 24px));
  padding-right: max(24px, calc((100% - 950px) / 2 + 24px));
  background-color: #fff; /* f0f8ff*/
  border-bottom: 0px solid rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 100;
  animation: headerSlide 0.6s var(--ease-out-expo);
  gap: 4px 20px;
  overflow: hidden;
}

.kd-engine-header::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url(https://kidsdigitaal.nl/wp-content/uploads/2026/01/Achtergrond-golf-v3.png?v=2);
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0.0; /* 0.04*/
  pointer-events: none;
  z-index: 0;
}

.kd-header-top,
.kd-header-bottom {
  position: relative;
  z-index: 1;
}

.kd-header-top {
  display: flex;
  align-items: center;
  gap: 12px;
}

.kd-header-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@keyframes headerSlide {
  from { 
    opacity: 0;
    transform: translateY(-100%);
  }
}

/* Close Button */
.kd-close-btn {
  grid-row: 1 / 3;
  align-self: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  border: 2px solid var(--kd-border);
  background: var(--kd-card);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all 0.3s var(--ease-out-expo);
  flex-shrink: 0;
  z-index: 2;
}

.kd-close-btn svg {
  width: 16px;
  height: 16px;
  stroke: var(--kd-text-secondary);
  stroke-width: 2.5;
  fill: none;
  transition: all 0.3s var(--ease-out-expo);
}

.kd-close-btn:hover {
  border-color: var(--kd-error);
  background: var(--kd-error-light);
  transform: rotate(90deg);
}

.kd-close-btn:hover svg {
  stroke: var(--kd-error);
}

.kd-close-btn:active {
  transform: rotate(90deg) scale(0.92);
}

/* ===== PROGRESS BAR ===== */
.kd-progress-container {
  flex: 1;
  height: 18px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid #b3d9f2;
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.kd-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--kd-primary), var(--kd-success));
  border-radius: var(--radius-full);
  transition: width 0.8s var(--ease-out-expo);
  position: relative;
}

/* Shimmer on progress */
.kd-progress-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255,255,255,0.4) 50%,
    transparent 100%
  );
  animation: progressShimmer 2s ease-in-out infinite;
}

@keyframes progressShimmer {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

.kd-progress-text {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--kd-text-secondary);
}

/* ===== LIVES ===== */
.kd-lives {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.kd-heart {
  width: 22px;
  height: 22px;
  transition: all 0.4s var(--ease-out-back);
  cursor: default;
  filter: drop-shadow(0 0 2px rgba(255,255,255,0.9));
}

.kd-heart:hover {
  transform: scale(1.15) rotate(-5deg);
}

.kd-heart.losing {
  animation: heartBreak 0.8s var(--ease-out-expo) forwards;
}

@keyframes heartBreak {
  0% { 
    transform: scale(1); 
    filter: none;
  }
  15% { 
    transform: scale(1.4) rotate(-15deg); 
  }
  30% { 
    transform: scale(1.2) rotate(10deg);
  }
  50% {
    transform: scale(0.9) translateY(-10px);
    filter: grayscale(0.5);
  }
  100% { 
    transform: scale(0.75) translateY(5px);
    opacity: 0.3;
    filter: grayscale(1);
  }
}

.kd-heart.lost {
  transform: scale(0.75);
  opacity: 0.3;
  filter: grayscale(1);
}

/* ===== STREAK INDICATOR ===== */
.kd-streak-container {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 110;
  pointer-events: none;
}

.kd-streak-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: linear-gradient(135deg, var(--kd-warning), #FF8C00);
  border-radius: var(--radius-full);
  color: white;
  font-weight: 600;
  font-size: 1rem;
  box-shadow: 0 4px 20px rgba(255, 190, 11, 0.4);
  opacity: 0;
  transform: scale(0.5) translateX(50px);
  transition: all 0.5s var(--ease-out-back);
}

.kd-streak-badge.visible {
  opacity: 1;
  transform: scale(1) translateX(0);
}

.kd-streak-badge.fire {
  animation: streakFire 0.6s var(--ease-out-back);
}

@keyframes streakFire {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

.kd-streak-badge svg {
  width: 22px;
  height: 22px;
  animation: fireFlicker 0.5s ease-in-out infinite alternate;
}

@keyframes fireFlicker {
  from { transform: scale(1) rotate(-3deg); }
  to { transform: scale(1.1) rotate(3deg); }
}
/* ===== MAIN CONTENT ===== */
.kd-engine-content {
  flex: 1 1 0;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 32px 20px 16px;
  max-width: 680px;
  margin: 0 auto;
  width: 100%;
  scrollbar-width: none; /* Firefox */
}

.kd-engine-content::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Edge */
}

/* ===== QUESTION CONTAINER ===== */
.kd-question-container {
  animation: questionEnter 0.7s var(--ease-out-expo);
}

@keyframes questionEnter {
  from {
    opacity: 0;
    transform: translateX(80px) scale(0.96);
    filter: blur(4px);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
    filter: blur(0);
  }
}

.kd-question-container.exiting {
  animation: questionExit 0.4s var(--ease-in-out-circ) forwards;
}

@keyframes questionExit {
  to {
    opacity: 0;
    transform: translateX(-60px) scale(0.96);
    filter: blur(4px);
  }
}

/* ===== QUESTION HEADER ===== */
.kd-question-header {
  text-align: center;
  margin-bottom: 36px;
}

.kd-question-type-badge {
  display: none !important;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--kd-primary-light), #F3E8FF);
  color: var(--kd-primary-dark);
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
  animation: badgeDrop 0.6s var(--ease-out-back) 0.1s backwards;
}

@keyframes badgeDrop {
  from {
    opacity: 0;
    transform: translateY(-30px) scale(0.8);
  }
}

.kd-question-text {
  font-size: clamp(1.4rem, 4vw, 1.75rem);
  font-weight: 600;
  color: var(--kd-text);
  line-height: 1.35;
  margin-bottom: 12px;
  animation: textFloat 0.7s var(--ease-out-expo) 0.15s backwards;
}

@keyframes textFloat {
  from {
    opacity: 0;
    transform: translateY(25px);
  }
}

.kd-question-hint {
  font-size: 1rem;
  color: var(--kd-text-secondary);
  animation: textFloat 0.7s var(--ease-out-expo) 0.25s backwards;
}

/* ===== MULTIPLE CHOICE ===== */
.kd-options-grid {
  display: grid;
  gap: 10px;
}

/* Compact grid voor korte antwoorden (2x2) */
.kd-options-grid.kd-options-compact {
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.kd-options-compact .kd-option-btn {
  padding: 16px 22px;
  font-size: 1rem;
  text-align: center;
}

.kd-options-compact .kd-option-btn.correct {
  background: var(--kd-success-light);
  border-color: var(--kd-success);
  color: var(--kd-success-dark);
}

.kd-options-compact .kd-option-btn.incorrect {
  background: var(--kd-error-light);
  border-color: var(--kd-error);
  color: var(--kd-error-dark);
}

.kd-options-compact .kd-option-btn.correct::before,
.kd-options-compact .kd-option-btn.incorrect::before {
  color: inherit;
}

.kd-options-compact .kd-option-btn.correct::after {
  background: rgba(0, 214, 143, 0.15);
}

.kd-option-btn {
  position: relative;
  padding: 20px 28px;
  background: var(--kd-card);
  border: 3px solid var(--kd-border);
  border-radius: var(--radius-md);
  font-size: 1.1rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--kd-text);
  cursor: pointer;
  text-align: left;
  overflow: hidden;
  transition: all 0.3s var(--ease-out-expo);
  animation: optionSlide 0.5s var(--ease-out-expo) backwards;
}

.kd-option-btn:nth-child(1) { animation-delay: 0.15s; }
.kd-option-btn:nth-child(2) { animation-delay: 0.2s; }
.kd-option-btn:nth-child(3) { animation-delay: 0.25s; }
.kd-option-btn:nth-child(4) { animation-delay: 0.3s; }

@keyframes optionSlide {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
}

/* Hover glow effect */
.kd-option-btn:hover:not(:disabled) {
  border-color: var(--kd-primary);
  transform: translateY(-4px) scale(1.01);
  box-shadow: 
    0 10px 30px -10px var(--kd-primary-glow),
    0 4px 10px rgba(0,0,0,0.08);
}

.kd-option-btn:active:not(:disabled) {
  transform: translateY(-2px) scale(0.99);
  transition-duration: 0.1s;
}

/* Correct Answer */
.kd-option-btn.correct {
  background: var(--kd-success);
  border-color: var(--kd-success);
  color: white;
  animation: correctPop 0.6s var(--ease-out-back);
  box-shadow: 0 10px 40px -10px var(--kd-success-glow);
}

@keyframes correctPop {
  0% { transform: scale(1); }
  40% { transform: scale(1.06); }
  70% { transform: scale(0.98); }
  100% { transform: scale(1); }
}

/* Checkmark appear */
.kd-option-btn.correct::after {
  content: '';
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
  display: grid;
  place-items: center;
  animation: checkPop 0.4s var(--ease-out-back) 0.15s backwards;
}

.kd-option-btn.correct::before {
  content: '✓';
  position: absolute;
  right: 26px;
  top: 50%;
  transform: translateY(-50%);
  color: white;
  font-size: 1.1rem;
  font-weight: 600;
  z-index: 1;
  animation: checkPop 0.4s var(--ease-out-back) 0.2s backwards;
}

@keyframes checkPop {
  from {
    opacity: 0;
    transform: translateY(-50%) scale(0) rotate(-180deg);
  }
  to {
    opacity: 1;
    transform: translateY(-50%) scale(1) rotate(0);
  }
}

/* Incorrect Answer */
.kd-option-btn.incorrect {
  background: var(--kd-error);
  border-color: var(--kd-error);
  color: white;
  animation: incorrectShake 0.6s var(--ease-out-expo);
}

@keyframes incorrectShake {
  0%, 100% { transform: translateX(0); }
  15% { transform: translateX(-14px) rotate(-2deg); }
  30% { transform: translateX(12px) rotate(2deg); }
  45% { transform: translateX(-10px) rotate(-1deg); }
  60% { transform: translateX(8px) rotate(1deg); }
  75% { transform: translateX(-4px); }
}

.kd-option-btn.incorrect::before {
  content: '✗';
  position: absolute;
  right: 26px;
  top: 50%;
  transform: translateY(-50%);
  color: white;
  font-size: 1.2rem;
  font-weight: 600;
  animation: checkPop 0.4s var(--ease-out-back) 0.1s backwards;
}

.kd-option-btn:disabled {
  cursor: not-allowed;
}

.kd-option-btn:disabled:not(.correct):not(.incorrect) {
  opacity: 0.5;
}

/* ===== INPUT FIELD ===== */
.kd-input-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.kd-answer-input {
  width: 100%;
  max-width: 400px;
  padding: 20px 28px;
  font-size: 1.4rem;
  font-family: inherit;
  font-weight: 600;
  text-align: center;
  border: 3px solid var(--kd-border);
  border-radius: var(--radius-lg);
  background: var(--kd-card);
  color: var(--kd-text);
  outline: none;
  transition: all 0.3s var(--ease-out-expo);
  animation: inputGrow 0.6s var(--ease-out-back);
}

@keyframes inputGrow {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
}

.kd-answer-input::placeholder {
  color: var(--kd-text-secondary);
  font-weight: 500;
}

.kd-answer-input:focus {
  border-color: var(--kd-primary);
  box-shadow: 
    0 0 0 4px var(--kd-primary-light),
    0 10px 30px -10px var(--kd-primary-glow);
  transform: scale(1.02);
}

.kd-answer-input.correct {
  border-color: var(--kd-success);
  background: var(--kd-success-light);
  animation: inputSuccess 0.5s var(--ease-out-back);
}

@keyframes inputSuccess {
  50% { transform: scale(1.04); }
}

.kd-answer-input.incorrect {
  border-color: var(--kd-error);
  background: var(--kd-error-light);
  animation: incorrectShake 0.5s var(--ease-out-expo);
}

/* ===== VUL-IN ===== */
.kd-vulin-container {
  text-align: left;
}

.kd-vulin-sentence {
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 2.8;
  color: var(--kd-text);
  margin-bottom: 28px;
  text-align: center;
}

.kd-vulin-blank {
  display: inline-block;
  min-width: 80px;
  width: auto;
  max-width: 200px;
  padding: 4px 12px;
  margin: 0 4px;
  font-size: 1.1rem;
  font-family: inherit;
  font-weight: 600;
  text-align: center;
  border: none;
  border-bottom: 4px solid var(--kd-primary);
  border-radius: 8px 8px 0 0;
  background: var(--kd-primary-light);
  color: var(--kd-text);
  outline: none;
  transition: all 0.3s var(--ease-out-expo);
  vertical-align: baseline;
  box-sizing: content-box;
}

.kd-vulin-blank:focus {
  background: white;
  border-bottom-width: 5px;
  box-shadow: 0 8px 20px -8px var(--kd-primary-glow);
  transform: translateY(-2px);
}

.kd-vulin-blank.correct {
  border-color: var(--kd-success);
  background: var(--kd-success-light);
  animation: blankBounce 0.4s var(--ease-out-back);
}

@keyframes blankBounce {
  50% { transform: translateY(-6px) scale(1.05); }
}

.kd-vulin-blank.incorrect {
  border-color: var(--kd-error);
  background: var(--kd-error-light);
  animation: incorrectShake 0.5s var(--ease-out-expo);
}
/* ===== DRAG & DROP ===== */
.kd-dragdrop-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.kd-drop-zone {
  width: 100%;
  min-height: 130px;
  border: 4px dashed var(--kd-primary);
  border-radius: var(--radius-xl);
  background: var(--kd-primary-light);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px;
  transition: all 0.4s var(--ease-out-expo);
  position: relative;
}

/* Breathing animation hint */
.kd-drop-zone::before {
  content: '';
  position: absolute;
  inset: -8px;
  border: 3px solid var(--kd-primary);
  border-radius: calc(var(--radius-xl) + 8px);
  opacity: 0;
  animation: zoneBreathe 2.5s ease-in-out infinite;
}

@keyframes zoneBreathe {
  0%, 100% { opacity: 0; transform: scale(0.98); }
  50% { opacity: 0.3; transform: scale(1); }
}

.kd-drop-placeholder {
  color: var(--kd-primary);
  font-weight: 600;
  font-size: 1.1rem;
  opacity: 0.7;
}

.kd-drop-zone.has-items .kd-drop-placeholder {
  display: none;
}

.kd-drop-zone.correct {
  border-color: var(--kd-success);
  background: var(--kd-success-light);
  animation: zoneSuccess 0.5s var(--ease-out-back);
}

.kd-drop-zone.correct::before {
  display: none;
}

@keyframes zoneSuccess {
  50% { transform: scale(1.02); }
}

.kd-drop-zone.incorrect {
  border-color: var(--kd-error);
  background: var(--kd-error-light);
  animation: incorrectShake 0.5s var(--ease-out-expo);
}

.kd-drag-items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.kd-drag-item {
  padding: 16px 28px;
  background: var(--kd-card);
  border: 3px solid var(--kd-border);
  border-radius: var(--radius-md);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: all 0.3s var(--ease-out-expo);
  animation: itemPop 0.5s var(--ease-out-back) backwards;
}

.kd-drag-item:nth-child(1) { animation-delay: 0.1s; }
.kd-drag-item:nth-child(2) { animation-delay: 0.14s; }
.kd-drag-item:nth-child(3) { animation-delay: 0.18s; }
.kd-drag-item:nth-child(4) { animation-delay: 0.22s; }
.kd-drag-item:nth-child(5) { animation-delay: 0.26s; }
.kd-drag-item:nth-child(6) { animation-delay: 0.3s; }

@keyframes itemPop {
  from {
    opacity: 0;
    transform: scale(0.7) translateY(20px);
  }
}

.kd-drag-item:hover {
  border-color: var(--kd-primary);
  transform: translateY(-4px) scale(1.03);
  box-shadow: var(--shadow-md);
}

.kd-drag-item:active {
  transform: scale(0.97);
  transition-duration: 0.1s;
}

.kd-drag-item.in-zone {
  background: linear-gradient(135deg, var(--kd-primary), var(--kd-primary-dark));
  border-color: var(--kd-primary);
  color: white;
  animation: itemSelect 0.35s var(--ease-out-back);
  box-shadow: 0 8px 25px -8px var(--kd-primary-glow);
}

@keyframes itemSelect {
  50% { transform: scale(1.12); }
}

/* ===== CONNECT ===== */
.kd-connect-container {
  padding: 10px 0;
}

.kd-connect-columns {
  display: grid;
  grid-template-columns: 1fr 50px 1fr;
  gap: 12px;
  align-items: start;
}

.kd-connect-column {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.kd-connect-item {
  padding: 18px 22px;
  background: var(--kd-card);
  border: 3px solid var(--kd-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--kd-text);
  cursor: pointer;
  transition: all 0.3s var(--ease-out-expo);
  animation: connectSlide 0.5s var(--ease-out-expo) backwards;
  position: relative;
  overflow: hidden;
}

.kd-connect-column:first-child .kd-connect-item {
  --direction: -1;
}

.kd-connect-column:last-child .kd-connect-item {
  --direction: 1;
}

@keyframes connectSlide {
  from {
    opacity: 0;
    transform: translateX(calc(30px * var(--direction, 1)));
  }
}

.kd-connect-item:nth-child(1) { animation-delay: 0.1s; }
.kd-connect-item:nth-child(2) { animation-delay: 0.15s; }
.kd-connect-item:nth-child(3) { animation-delay: 0.2s; }
.kd-connect-item:nth-child(4) { animation-delay: 0.25s; }

.kd-connect-item:hover:not(.matched):not(.selected) {
  border-color: var(--kd-primary);
  transform: scale(1.03);
  box-shadow: var(--shadow-md);
}

.kd-connect-item.selected {
  border-color: var(--kd-primary);
  background: var(--kd-primary-light);
  box-shadow: 0 0 0 4px rgba(75, 173, 255, 0.2);
  animation: selectPulse 1.5s ease-in-out infinite;
}

@keyframes selectPulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(75, 173, 255, 0.2); }
  50% { box-shadow: 0 0 0 8px rgba(75, 173, 255, 0.1); }
}

.kd-connect-item.matched {
  background: var(--kd-success);
  border-color: var(--kd-success);
  color: white;
  cursor: default;
  animation: matchPop 0.5s var(--ease-out-back);
}

@keyframes matchPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.kd-connect-item.matched::after {
  content: '✓';
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9rem;
}

.kd-connect-item.incorrect-flash {
  border-color: var(--kd-error);
  background: var(--kd-error-light);
  animation: incorrectShake 0.5s var(--ease-out-expo);
}

.kd-connect-lines {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== SORTEER ===== */
.kd-sorteer-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  background: rgba(0,0,0,0.02);
  border-radius: var(--radius-xl);
}

.kd-sorteer-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 22px;
  background: var(--kd-card);
  border: 3px solid var(--kd-border);
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: grab;
  user-select: none;
  touch-action: none;
  -webkit-touch-callout: none;
  transition: all 0.3s var(--ease-out-expo);
  animation: sortSlide 0.4s var(--ease-out-expo) backwards;
}

.kd-sorteer-item:nth-child(1) { animation-delay: 0.05s; }
.kd-sorteer-item:nth-child(2) { animation-delay: 0.1s; }
.kd-sorteer-item:nth-child(3) { animation-delay: 0.15s; }
.kd-sorteer-item:nth-child(4) { animation-delay: 0.2s; }
.kd-sorteer-item:nth-child(5) { animation-delay: 0.25s; }

@keyframes sortSlide {
  from {
    opacity: 0;
    transform: translateX(-25px);
  }
}

.kd-sorteer-nr {
  width: 36px;
  height: 36px;
  background: var(--kd-primary-light);
  color: var(--kd-primary);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.95rem;
  font-weight: 600;
  flex-shrink: 0;
  transition: all 0.3s var(--ease-out-expo);
}

.kd-sorteer-item:hover {
  border-color: var(--kd-primary);
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.kd-sorteer-item:active,
.kd-sorteer-item.dragging {
  cursor: grabbing;
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
  z-index: 10;
  background: var(--kd-primary-light);
  border-color: var(--kd-primary);
}

.kd-sorteer-item.correct {
  border-color: var(--kd-success);
  background: var(--kd-success-light);
}

.kd-sorteer-item.correct .kd-sorteer-nr {
  background: var(--kd-success);
  color: white;
}

.kd-sorteer-item.incorrect {
  border-color: var(--kd-error);
  background: var(--kd-error-light);
  animation: incorrectShake 0.5s var(--ease-out-expo);
}

.kd-sorteer-item.incorrect .kd-sorteer-nr {
  background: var(--kd-error);
  color: white;
}
/* ===== MEMORY GAME ===== */
.kd-memory-container {
  padding: 10px 0;
}

.kd-memory-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  max-width: 480px;
  margin: 0 auto;
}

@media (max-width: 480px) {
  .kd-memory-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }
}

.kd-memory-card {
  aspect-ratio: 1;
  perspective: 1200px;
  cursor: pointer;
  animation: cardDeal 0.6s var(--ease-out-back) backwards;
}

.kd-memory-card:nth-child(1) { animation-delay: 0.05s; }
.kd-memory-card:nth-child(2) { animation-delay: 0.08s; }
.kd-memory-card:nth-child(3) { animation-delay: 0.11s; }
.kd-memory-card:nth-child(4) { animation-delay: 0.14s; }
.kd-memory-card:nth-child(5) { animation-delay: 0.17s; }
.kd-memory-card:nth-child(6) { animation-delay: 0.2s; }
.kd-memory-card:nth-child(7) { animation-delay: 0.23s; }
.kd-memory-card:nth-child(8) { animation-delay: 0.26s; }

@keyframes cardDeal {
  from {
    opacity: 0;
    transform: rotateY(-180deg) scale(0.6) translateY(-30px);
  }
}

.kd-memory-card-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.7s var(--ease-out-expo);
}

.kd-memory-card:hover:not(.flipped):not(.matched) .kd-memory-card-inner {
  transform: rotateY(15deg) scale(1.05);
}

.kd-memory-card.flipped .kd-memory-card-inner,
.kd-memory-card.matched .kd-memory-card-inner {
  transform: rotateY(180deg);
}

.kd-memory-card-front,
.kd-memory-card-back {
position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  font-weight: 600;
  font-size: 0.9rem;
  text-align: center;
  padding: 12px;
  border: 3px solid transparent;
}

.kd-memory-card-front {
  background: linear-gradient(145deg, var(--kd-primary), #3B8EE8);
  color: white;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

/* Card pattern */
.kd-memory-card-front::before {
  content: '?';
  font-size: 2.2rem;
  opacity: 0.4;
}

.kd-memory-card-front::after {
  content: '';
  position: absolute;
  inset: 10px;
  border: 2px solid rgba(255,255,255,0.15);
  border-radius: calc(var(--radius-md) - 6px);
}

.kd-memory-card-back {
  background: var(--kd-card);
  color: var(--kd-text);
  transform: rotateY(180deg);
  border-color: var(--kd-border);
  box-shadow: var(--shadow-md);
}

.kd-memory-card.matched .kd-memory-card-back {
  border-color: var(--kd-success);
  background: linear-gradient(145deg, var(--kd-success-light), white);
  animation: memoryMatch 0.6s var(--ease-out-back);
}

@keyframes memoryMatch {
  0% { transform: rotateY(180deg) scale(1); }
  50% { transform: rotateY(180deg) scale(1.15); }
  100% { transform: rotateY(180deg) scale(1); }
}

/* ===== BUTTONS ===== */
.kd-btn {
  position: relative;
  padding: 15px 45px;
  border-radius: 15px;
  border: none;
  font-size: 1.1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.1s ease, box-shadow 0.1s ease, background-color 0.2s ease;
  isolation: isolate;
}

/* Shine effect uitgeschakeld voor 3D-stijl */
.kd-btn::before {
  display: none;
}

.kd-btn:hover::before {
  display: none;
}

.kd-btn-primary {
  background: #0099FF;
  color: #fff;
  box-shadow: inset 0 -4px 0 rgba(0, 122, 204, 0.4);
}

.kd-btn-primary:hover:not(:disabled) {
  background: #008ae5;
  transform: none;
  box-shadow: inset 0 -4px 0 rgba(0, 122, 204, 0.4);
}

.kd-btn-primary:active:not(:disabled) {
  transform: translateY(4px);
  box-shadow: none;
}

.kd-btn-success {
  background: var(--kd-success);
  color: white;
  box-shadow: inset 0 -4px 0 var(--kd-success-dark);
}

.kd-btn-success::before {
  display: none;
}

.kd-btn-success:hover:not(:disabled) {
  background: #00c483;
  transform: none;
  box-shadow: inset 0 -4px 0 var(--kd-success-dark);
}

.kd-btn-success:active:not(:disabled) {
  transform: translateY(4px);
  box-shadow: none;
}

.kd-btn-error {
  background: var(--kd-error);
  color: white;
  box-shadow: inset 0 -4px 0 var(--kd-error-dark);
}

.kd-btn-error::before {
  display: none;
}

.kd-btn-error:hover:not(:disabled) {
  background: #f03e4d;
  transform: none;
  box-shadow: inset 0 -4px 0 var(--kd-error-dark);
}

.kd-btn-error:active:not(:disabled) {
  transform: translateY(4px);
  box-shadow: none;
}

.kd-btn-secondary {
  background: var(--kd-card);
  color: var(--kd-text);
  border: 3px solid var(--kd-border);
  border-radius: 15px;
}

.kd-btn-secondary:hover:not(:disabled) {
  border-color: var(--kd-primary);
  background: var(--kd-primary-light);
  color: var(--kd-primary);
  transform: none;
}

.kd-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* ===== STICKY NAKIJKEN BUTTON ===== */
.kd-check-btn-wrapper {
  background: var(--kd-card);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
  padding: 16px 24px 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  pointer-events: none;
  z-index: 150;
  flex-shrink: 0;
}

.kd-check-btn {
  min-width: 200px;
  pointer-events: auto;
  box-shadow: inset 0 -4px 0 rgba(0, 122, 204, 0.4), 0 4px 20px rgba(0,0,0,0.15);
}

/* Leestekst terugkijk-knop */
.kd-leestekst-terugkijk-btn {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--kd-primary, #4BADFF);
  background: rgba(75, 173, 255, 0.08);
  border: 1.5px solid rgba(75, 173, 255, 0.25);
  border-radius: var(--radius-full, 50px);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.kd-leestekst-terugkijk-btn:hover {
  background: rgba(75, 173, 255, 0.15);
  border-color: rgba(75, 173, 255, 0.4);
  transform: none;
}

.kd-leestekst-terugkijk-btn:active {
  transform: scale(0.96);
}

.kd-leestekst-terugkijk-btn svg {
  flex-shrink: 0;
}

.kd-check-btn:hover:not(:disabled) {
  transform: none;
}

.kd-check-btn:active:not(:disabled) {
  transform: translateY(4px);
  box-shadow: none;
}

/* Geselecteerde optie styling (voor meerkeuze met Controleer) */
.kd-option-btn.selected {
  border-color: var(--kd-primary);
  background: var(--kd-primary-light);
  color: var(--kd-text);
  box-shadow: 0 0 0 3px rgba(75, 173, 255, 0.25);
}

/* Correct/incorrect moet altijd winnen van selected */
.kd-option-btn.selected.correct {
  background: var(--kd-success);
  border-color: var(--kd-success);
  color: white;
  box-shadow: 0 10px 40px -10px var(--kd-success-glow);
}

.kd-option-btn.selected.incorrect {
  background: var(--kd-error);
  border-color: var(--kd-error);
  color: white;
}

/* Loading state */
.kd-btn.loading {
  pointer-events: none;
  color: transparent;
}

.kd-btn.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 22px;
  height: 22px;
  margin: -11px 0 0 -11px;
  border: 3px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: btnSpin 0.8s linear infinite;
}

@keyframes btnSpin {
  to { transform: rotate(360deg); }
}
/* ===== FEEDBACK PANEL ===== */
.kd-feedback-panel {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--kd-card);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  box-shadow: 0 -10px 60px rgba(0,0,0,0.15);
  padding: 32px 24px 40px;
  z-index: 200;
  transform: translateY(100%);
  transition: transform 0.5s var(--ease-out-expo);
}

.kd-feedback-panel.visible {
  transform: translateY(0);
}

.kd-feedback-content {
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
}

.kd-feedback-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}

.kd-feedback-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  animation: iconBurst 0.6s var(--ease-out-back);
}

@keyframes iconBurst {
  from {
    transform: scale(0) rotate(-180deg);
    opacity: 0;
  }
  to {
    transform: scale(1) rotate(0);
    opacity: 1;
  }
}

.kd-feedback-panel.correct .kd-feedback-icon {
  background: linear-gradient(135deg, var(--kd-success), #00B377);
  box-shadow: 0 8px 25px rgba(0, 214, 143, 0.4);
}

.kd-feedback-panel.incorrect .kd-feedback-icon {
  background: linear-gradient(135deg, var(--kd-error), #E8303F);
  box-shadow: 0 8px 25px rgba(255, 71, 87, 0.4);
}

.kd-feedback-icon svg {
  width: 15px;
  height: 15px;
  stroke: white;
  stroke-width: 3;
  fill: none;
}

.kd-feedback-title {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 600;
  animation: titleSlide 0.5s var(--ease-out-expo) 0.1s backwards;
}

@keyframes titleSlide {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
}

.kd-feedback-panel.correct .kd-feedback-title {
  color: var(--kd-success);
}

.kd-feedback-panel.incorrect .kd-feedback-title {
  color: var(--kd-error);
}

.kd-feedback-explanation {
  color: var(--kd-text-secondary);
  font-size: 1.05rem;
  margin: 0 0 24px;
  line-height: 1.5;
  animation: textUp 0.5s var(--ease-out-expo) 0.15s backwards;
}

@keyframes textUp {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
}

.kd-feedback-panel .kd-btn {
  animation: btnUp 0.5s var(--ease-out-expo) 0.25s backwards;
  min-width: 100px;
}

@keyframes btnUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
}

/* ===== COMBO / STREAK POPUP ===== */
.kd-combo-popup {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  z-index: 300;
  pointer-events: none;
  text-align: center;
}

.kd-combo-popup.visible {
  animation: comboBurst 1.2s var(--ease-out-expo forwards);
}

@keyframes comboBurst {
  0% {
    transform: translate(-50%, -50%) scale(0) rotate(-10deg);
    opacity: 0;
  }
  20% {
    transform: translate(-50%, -50%) scale(1.2) rotate(5deg);
    opacity: 1;
  }
  40% {
    transform: translate(-50%, -50%) scale(0.95) rotate(-2deg);
  }
  60% {
    transform: translate(-50%, -50%) scale(1.05);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.5) translateY(-50px);
    opacity: 0;
  }
}

.kd-combo-text {
  font-size: 3.5rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--kd-warning), #FF6B35, var(--kd-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
  filter: drop-shadow(0 4px 20px rgba(255, 190, 11, 0.5));
}

.kd-combo-sub {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--kd-text);
  margin-top: 8px;
}

/* ===== PARTICLE EFFECTS ===== */
.kd-particles-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 250;
  overflow: hidden;
}

.kd-particle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.kd-particle.star {
  width: 20px;
  height: 20px;
  background: var(--kd-warning);
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
  animation: particleStar 1s var(--ease-out-expo) forwards;
}

@keyframes particleStar {
  0% {
    transform: scale(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: scale(1.5) rotate(180deg) translateY(-100px);
    opacity: 0;
  }
}

.kd-particle.circle {
  animation: particleCircle 0.8s var(--ease-out-expo) forwards;
}

@keyframes particleCircle {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(3);
    opacity: 0;
  }
}

.kd-particle.spark {
  width: 6px;
  height: 6px;
  animation: particleSpark 0.6s var(--ease-out-expo) forwards;
}

@keyframes particleSpark {
  0% {
    transform: translate(0, 0) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate(var(--tx), var(--ty)) scale(0);
    opacity: 0;
  }
}

/* ===== CONFETTI ===== */
.kd-confetti-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  overflow: hidden;
}

.kd-confetti {
  position: absolute;
  top: -20px;
  animation: confettiFall linear forwards;
}

@keyframes confettiFall {
  0% {
    transform: translateY(0) rotate(0deg) scale(1);
    opacity: 1;
  }
  75% {
    opacity: 1;
  }
  100% {
    transform: translateY(110vh) rotate(var(--rotation, 720deg)) scale(0.5);
    opacity: 0;
  }
}

/* Different confetti shapes */
.kd-confetti.rect {
  width: 12px;
  height: 8px;
  border-radius: 2px;
}

.kd-confetti.circle {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.kd-confetti.triangle {
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-bottom: 12px solid var(--color);
  background: transparent !important;
}

.kd-confetti.star {
  width: 14px;
  height: 14px;
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}

/* ===== SCREEN EFFECTS ===== */
.kd-leer-engine.flash-correct::after,
.kd-leer-engine.flash-incorrect::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 150;
  animation: screenFlash 0.5s ease-out forwards;
}

.kd-leer-engine.flash-correct::after {
  background: radial-gradient(circle at center, var(--kd-success-glow), transparent 70%);
}

.kd-leer-engine.flash-incorrect::after {
  background: radial-gradient(circle at center, var(--kd-error-glow), transparent 70%);
}

@keyframes screenFlash {
  0% { opacity: 0; }
  25% { opacity: 0.6; }
  100% { opacity: 0; }
}

/* Streak fire background */
.kd-leer-engine.streak-fire::before {
  background: 
    radial-gradient(ellipse 80% 50% at 50% 100%, rgba(255, 190, 11, 0.15), transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(168, 85, 247, 0.06), transparent);
  animation: fireGlow 0.8s ease-out;
}

@keyframes fireGlow {
  0% { opacity: 0; }
  50% { opacity: 1; }
  100% { opacity: 1; }
}

/* ===== FLOATING +POINTS ===== */
.kd-points-float {
  position: fixed;
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--kd-success);
  pointer-events: none;
  z-index: 300;
  animation: pointsFloat 2.5s var(--ease-out-expo) forwards;
  text-shadow: 0 2px 10px rgba(0, 214, 143, 0.5);
}

@keyframes pointsFloat {
  0% {
    opacity: 1;
    transform: translateY(0) scale(0.5);
  }
  15% {
    opacity: 1;
    transform: translateY(-10px) scale(1.2);
  }
  50% {
    opacity: 1;
    transform: translateY(-40px) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(-90px) scale(0.8);
  }
}

.kd-points-float.bonus {
  font-size: 2.2rem;
  color: var(--kd-warning);
  text-shadow: 0 2px 15px rgba(255, 190, 11, 0.6);
}
/* ===== END SCREENS ===== */
.kd-end-screen {
  text-align: center;
  padding: 20px 20px 40px;
  animation: endEnter 0.8s var(--ease-out-expo);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  min-height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
}

@keyframes endEnter {
  from {
    opacity: 0;
    transform: scale(0.9);
    filter: blur(10px);
  }
  to {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
  }
}

.kd-end-icon {
  margin-bottom: 16px;
  animation: trophyDrop 1s var(--ease-out-back) 0.2s backwards;
  flex-shrink: 0;
}

@keyframes trophyDrop {
  0% {
    opacity: 0;
    transform: scale(0) rotate(-30deg) translateY(-100px);
  }
  60% {
    transform: scale(1.15) rotate(5deg) translateY(0);
  }
  80% {
    transform: scale(0.95) rotate(-2deg);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotate(0);
  }
}

.kd-end-icon svg {
  width: 90px;
  height: 90px;
  filter: drop-shadow(0 10px 30px rgba(0, 214, 143, 0.4));
}

.kd-game-over .kd-end-icon svg {
  filter: drop-shadow(0 15px 40px rgba(255, 71, 87, 0.4));
}

.kd-end-title {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--kd-text);
  margin: 0 0 6px;
  animation: textFloat 0.7s var(--ease-out-expo) 0.4s backwards;
}

.kd-end-subtitle {
  font-size: 1.05rem;
  color: var(--kd-text-secondary);
  margin: 0 0 20px;
  animation: textFloat 0.7s var(--ease-out-expo) 0.5s backwards;
}

/* Score Cards */
.kd-score-display {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.kd-score-card {
  background: var(--kd-card);
  border: 3px solid var(--kd-border);
  border-radius: var(--radius-lg);
  padding: 14px 24px;
  animation: scoreCardPop 0.6s var(--ease-out-back) backwards;
  transition: all 0.3s var(--ease-out-expo);
}

.kd-score-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--kd-primary);
}

.kd-score-card:nth-child(1) { animation-delay: 0.6s; }
.kd-score-card:nth-child(2) { animation-delay: 0.75s; }
.kd-score-card:nth-child(3) { animation-delay: 0.9s; }

@keyframes scoreCardPop {
  from {
    opacity: 0;
    transform: scale(0.5) translateY(30px);
  }
}

.kd-score-value {
  font-size: 2rem;
  font-weight: 600;
  color: var(--kd-primary);
  line-height: 1;
}

.kd-score-card:nth-child(2) .kd-score-value {
  color: var(--kd-success);
}

.kd-score-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--kd-text-secondary);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Star rating */
.kd-stars-display {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 16px;
}

.kd-star {
  width: 40px;
  height: 40px;
  animation: starEarn 0.6s var(--ease-out-back) backwards;
}

.kd-star:nth-child(1) { animation-delay: 0.8s; }
.kd-star:nth-child(2) { animation-delay: 1s; }
.kd-star:nth-child(3) { animation-delay: 1.2s; }

@keyframes starEarn {
  0% {
    opacity: 0;
    transform: scale(0) rotate(-180deg);
  }
  60% {
    transform: scale(1.3) rotate(10deg);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotate(0);
  }
}

.kd-star.empty {
  opacity: 0.3;
  filter: grayscale(1);
}

.kd-star svg {
  width: 100%;
  height: 100%;
  fill: var(--kd-warning);
  filter: drop-shadow(0 4px 10px rgba(255, 190, 11, 0.4));
}

.kd-end-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
  animation: textFloat 0.7s var(--ease-out-expo) 1.1s backwards;
}

/* ===== ERROR STATE ===== */
.kd-error-state {
  text-align: center;
  padding: 80px 24px;
  animation: errorShake 0.7s var(--ease-out-expo);
}

@keyframes errorShake {
  0%, 100% { transform: translateX(0); }
  15% { transform: translateX(-20px); }
  30% { transform: translateX(20px); }
  45% { transform: translateX(-15px); }
  60% { transform: translateX(15px); }
  75% { transform: translateX(-10px); }
}

.kd-error-state h2 {
  font-size: 2rem;
  color: var(--kd-error);
  margin: 0 0 16px;
}

.kd-error-state p {
  color: var(--kd-text-secondary);
  font-size: 1.1rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
  .kd-engine-header {
    padding: 6px 12px;
    gap: 3px 10px;
  }
  
  .kd-close-btn {
    width: 28px;
    height: 28px;
  }
  
  .kd-heart {
    width: 20px;
    height: 20px;
  }
  
  .kd-progress-container {
    height: 12px;
  }
  
  .kd-progress-text {
    font-size: 0.7rem;
  }
  
  .kd-engine-content {
    padding: 20px 16px 12px;
  }
  
  .kd-question-text {
    font-size: 1.3rem;
  }
  
  .kd-option-btn {
    padding: 16px 20px;
    font-size: 1rem;
  }
  
  .kd-connect-columns {
    grid-template-columns: 1fr 30px 1fr;
    gap: 8px;
  }
  
  .kd-connect-item {
    padding: 14px 16px;
    font-size: 0.9rem;
  }
  
  .kd-drag-item {
    padding: 14px 20px;
    font-size: 0.95rem;
  }
  
  .kd-feedback-panel {
    padding: 28px 20px 36px;
  }
  
  .kd-feedback-title {
    font-size: 1.4rem;
  }
  
  .kd-feedback-icon {
    width: 25px;
    height: 25px;
  }
  
  .kd-btn {
    padding: 16px 36px;
    font-size: 1rem;
  }
  
  .kd-check-btn-wrapper {
    bottom: 16px;
    gap: 8px;
  }
  
  .kd-check-btn {
    min-width: 180px;
    padding: 14px 32px;
  }
  
  .kd-leestekst-terugkijk-btn {
    padding: 8px 12px;
    font-size: 0.8rem;
  }
  
  .kd-end-title {
    font-size: 1.5rem;
  }
  
  .kd-end-subtitle {
    margin-bottom: 12px;
    font-size: 0.95rem;
  }
  
  .kd-end-icon svg {
    width: 70px;
    height: 70px;
  }
  
  .kd-end-icon {
    margin-bottom: 10px;
  }
  
  .kd-stars-display {
    gap: 8px;
    margin-bottom: 12px;
  }
  
  .kd-star {
    width: 32px;
    height: 32px;
  }
  
  .kd-score-display {
    gap: 10px;
  }
  
  .kd-score-card {
    padding: 10px 16px;
  }
  
  .kd-score-value {
    font-size: 1.5rem;
  }
  
  .kd-score-label {
    font-size: 0.75rem;
  }
  
  .kd-xp-result {
    margin-top: 10px;
    padding: 10px 16px;
  }
  
  .kd-xp-earned {
    font-size: 1.3em;
  }
  
  .kd-end-actions {
    gap: 8px;
  }
  
  .kd-end-actions .kd-btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }
  
  .kd-combo-text {
    font-size: 2.8rem;
  }
  
  .kd-streak-badge {
    top: 70px;
    right: 12px;
    padding: 8px 14px;
    font-size: 0.9rem;
  }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.2s !important;
  }
  
  .kd-confetti-container,
  .kd-particles-container,
  .kd-combo-popup {
    display: none !important;
  }
}

/* ===== v3.0: XP & LEVEL SYSTEM ===== */

.kd-xp-result {
  margin-top: 16px;
  padding: 14px 20px;
  background: linear-gradient(135deg, rgba(75, 173, 255, 0.1), rgba(168, 85, 247, 0.1));
  border-radius: var(--radius-lg);
  text-align: center;
  animation: slideUp 0.6s var(--ease-out-expo) 0.3s backwards;
  width: 100%;
  max-width: 400px;
}

.kd-xp-earned {
  font-size: 1.6em;
  font-weight: 600;
  background: linear-gradient(135deg, #4BADFF, #A855F7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: xpPop 0.6s var(--bounce) 0.5s backwards;
}

@keyframes xpPop {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.kd-new-record {
  display: inline-block;
  margin-top: 8px;
  padding: 6px 16px;
  background: linear-gradient(135deg, #FFBE0B, #FF6B35);
  color: white;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9em;
  animation: recordBounce 0.5s var(--bounce) 0.7s backwards;
}

@keyframes recordBounce {
  from { transform: scale(0) rotate(-10deg); }
  to { transform: scale(1) rotate(0); }
}

.kd-level-bar {
  margin-top: 16px;
}

.kd-level-label {
  font-weight: 600;
  font-size: 0.95em;
  color: var(--kd-text);
  margin-bottom: 6px;
}

.kd-level-progress {
  height: 12px;
  background: var(--kd-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.kd-level-fill {
  height: 100%;
  background: linear-gradient(90deg, #4BADFF, #A855F7);
  border-radius: var(--radius-full);
  transition: width 1.5s var(--ease-out-expo) 0.8s;
}

.kd-level-xp {
  font-size: 0.8em;
  color: var(--kd-text-secondary);
  margin-top: 4px;
}

/* ===== v3.0: OUDER DASHBOARD ===== */

.kd-leer-dashboard {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
  font-family: "Baloo 2", "Inter", -apple-system, sans-serif;
}

.kd-dash-header {
  text-align: center;
  margin-bottom: 32px;
}

.kd-dash-level {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  background: linear-gradient(135deg, #4BADFF, #A855F7);
  color: white;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1.2em;
  margin-bottom: 16px;
}

.kd-dash-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.kd-dash-stat {
  background: var(--kd-card);
  border: 2px solid var(--kd-border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}

.kd-dash-stat-value {
  font-size: 2em;
  font-weight: 600;
  color: var(--kd-primary);
  line-height: 1;
}

.kd-dash-stat-label {
  font-size: 0.85em;
  color: var(--kd-text-secondary);
  margin-top: 4px;
}

.kd-dash-section {
  margin-bottom: 32px;
}

.kd-dash-section h3 {
  font-size: 1.1em;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--kd-border);
}

/* XP Grafiek */
.kd-dash-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 120px;
  padding: 10px 0;
}

.kd-dash-bar {
  flex: 1;
  background: linear-gradient(180deg, #4BADFF, #A855F7);
  border-radius: 4px 4px 0 0;
  min-height: 4px;
  position: relative;
  transition: height 0.5s var(--ease-out-expo);
}

.kd-dash-bar-label {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.65em;
  color: var(--kd-text-secondary);
  white-space: nowrap;
}

/* Zwakke vragen lijst */
.kd-dash-weak-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.kd-dash-weak-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--kd-card);
  border: 2px solid var(--kd-border);
  border-radius: var(--radius-sm);
}

.kd-dash-weak-question {
  font-weight: 600;
  flex: 1;
  margin-right: 12px;
}

.kd-dash-weak-ratio {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.85em;
  font-weight: 600;
}

.kd-dash-weak-ratio.bad {
  background: var(--kd-error-light);
  color: var(--kd-error);
}

.kd-dash-weak-ratio.ok {
  background: #FFF3CD;
  color: #856404;
}

/* Recente activiteit */
.kd-dash-activity {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.kd-dash-activity-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--kd-card);
  border: 2px solid var(--kd-border);
  border-radius: var(--radius-sm);
}

.kd-dash-activity-stars {
  color: #FFBE0B;
  white-space: nowrap;
}

.kd-dash-activity-title {
  font-weight: 600;
  flex: 1;
}

.kd-dash-activity-xp {
  font-weight: 600;
  color: var(--kd-primary);
}

.kd-dash-activity-time {
  font-size: 0.8em;
  color: var(--kd-text-secondary);
}

.kd-dash-empty {
  text-align: center;
  padding: 40px;
  color: var(--kd-text-secondary);
}

/* Loading spinner voor dashboard */
.kd-dash-loading {
  text-align: center;
  padding: 60px;
}

/* ===== OVERLAY SYSTEEM ===== */

.kd-leer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 999999;
  background: var(--kd-bg, #FFFFFF);
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.kd-leer-overlay.active {
  transform: translateY(0);
}

.kd-leer-overlay .kd-leer-engine {
  width: 100%;
  height: 100%;
  min-height: 0;
  max-height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Zorg dat de overlay boven alles staat inclusief WordPress admin bar */
body.admin-bar .kd-leer-overlay {
  top: 32px;
}

@media screen and (max-width: 782px) {
  body.admin-bar .kd-leer-overlay {
    top: 46px;
  }
}

/* ===== v3.0: AFBEELDINGEN IN VRAGEN ===== */

/* Vraag afbeelding onder de tekst */
.kd-question-image {
  margin: 16px 0;
  text-align: center;
}

.kd-question-image img {
  max-width: 100%;
  max-height: 200px;
  border-radius: var(--radius-md);
  object-fit: contain;
  box-shadow: var(--shadow-sm);
}

/* Afbeeldingen in opties (MC, drag-drop, sorteer) */
.kd-content-img {
  max-width: 120px;
  max-height: 80px;
  border-radius: 8px;
  object-fit: contain;
  vertical-align: middle;
}

/* MC grid met afbeeldingen: 2x2 layout */
.kd-options-grid.kd-options-images {
  grid-template-columns: 1fr 1fr;
}

.kd-options-grid.kd-options-images .kd-option-btn {
  padding: 12px;
  min-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.kd-options-grid.kd-options-images .kd-content-img {
  max-width: 100%;
  max-height: 240px;
  object-fit: contain;
}

/* Connect items met afbeeldingen */
.kd-connect-item:has(.kd-content-img) {
  padding: 8px 12px;
}

.kd-connect-item .kd-content-img {
  max-width: 100%;
  max-height: 80px;
  display: block;
  margin: 0 auto;
  object-fit: contain;
  padding: 2px;
}

/* Memory kaarten met afbeeldingen */
.kd-memory-card-back .kd-content-img {
  max-width: 100%;
  max-height: 160px;
  display: block;
  margin: 0 auto;
  object-fit: contain;
}

/* Drag items met afbeeldingen */
.kd-drag-item .kd-content-img {
  max-width: 100%;
  max-height: 120px;
  vertical-align: middle;
  object-fit: contain;
}

/* Sorteer items met afbeeldingen */
.kd-sorteer-item .kd-content-img {
  max-width: 100%;
  max-height: 120px;
  vertical-align: middle;
  object-fit: contain;
}

/* Admin: media field styling */
.kd-media-field {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.kd-media-field .regular-text {
  flex: 1;
}

.kd-media-preview {
  flex-shrink: 0;
}

.kd-media-preview img {
  max-width: 60px;
  max-height: 40px;
  border-radius: 4px;
  object-fit: contain;
  border: 1px solid #ddd;
}

.kd-media-upload-btn,
.kd-media-remove-btn {
  flex-shrink: 0;
  padding: 4px 8px !important;
  min-width: auto !important;
}

.kd-media-remove-btn {
  color: #FF4757 !important;
}

.kd-feedback-image {
  margin: 12px 0;
  text-align: center;
}

.kd-feedback-image img {
  max-width: 200px;
  max-height: 150px;
  border-radius: 8px;
  object-fit: contain;
}

/* ===== PUNT 8: TEKST BIJ DE VRAAG ===== */
.kd-question-extra-text {
  margin: 16px 0;
  padding: 16px 24px;
  background: linear-gradient(135deg, var(--kd-primary-light), #F3E8FF);
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--kd-text);
  text-align: center;
  line-height: 1.5;
  animation: textFloat 0.5s var(--ease-out-expo) 0.2s backwards;
}

/* ===== PUNT 12: TIMER ===== */
.kd-question-timer {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  animation: textFloat 0.4s var(--ease-out-expo);
}

.kd-timer-bar {
  flex: 1;
  height: 8px;
  background: var(--kd-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.kd-timer-fill {
  height: 100%;
  background: var(--kd-primary);
  border-radius: var(--radius-full);
  transition: width 1s linear;
}

.kd-timer-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--kd-text-secondary);
  min-width: 32px;
  text-align: right;
}

.kd-timer-warning .kd-timer-fill {
  background: var(--kd-error);
}

.kd-timer-warning .kd-timer-text {
  color: var(--kd-error);
  animation: timerPulse 0.5s ease-in-out infinite alternate;
}

@keyframes timerPulse {
  from { opacity: 1; transform: scale(1); }
  to { opacity: 0.6; transform: scale(1.1); }
}

/* ===== PUNT 14: ONBEPERKT LEVENS ===== */
.kd-lives-unlimited {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--kd-success);
  line-height: 1;
}

/* ===== PUNT 2: GOED/FOUT BUTTONS ===== */
.kd-goedfout-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 32px;
}

.kd-goedfout-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 18px 40px;
  font-size: 1.15rem;
  min-width: 160px;
  justify-content: center;
}

.kd-goedfout-btn svg {
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .kd-goedfout-buttons {
    flex-direction: column;
    gap: 14px;
    align-items: stretch;
    padding: 0 20px;
  }
  
  .kd-goedfout-btn {
    min-width: auto;
    padding: 16px 32px;
  }
}

/* ===== PUNT 5: ZINNEN SAMENSTELLEN ===== */
.kd-zin-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.kd-zin-zone {
  min-height: 70px;
  width: 100%;
  padding: 16px;
  background: var(--kd-primary-light);
  border: 3px dashed var(--kd-primary);
  border-radius: var(--radius-lg);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: center;
  transition: all 0.3s var(--ease-out-expo);
}

.kd-zin-zone.has-items {
  border-style: solid;
  background: rgba(75, 173, 255, 0.05);
  justify-content: flex-start;
}

.kd-zin-zone.correct {
  border-color: var(--kd-success);
  background: var(--kd-success-light);
}

.kd-zin-zone.incorrect {
  border-color: var(--kd-error);
  background: var(--kd-error-light);
}

.kd-zin-placeholder {
  color: var(--kd-text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
}

.kd-zin-words {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.kd-zin-word {
  padding: 12px 20px;
  background: var(--kd-card);
  border: 3px solid var(--kd-border);
  border-radius: var(--radius-md);
  font-size: 1.05rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--kd-text);
  cursor: pointer;
  transition: all 0.25s var(--ease-out-expo);
  user-select: none;
  -webkit-user-select: none;
}

.kd-zin-word:hover:not(:disabled) {
  border-color: var(--kd-primary);
  transform: scale(1.05);
  box-shadow: var(--shadow-sm);
}

.kd-zin-word.in-zone {
  background: var(--kd-primary-light);
  border-color: var(--kd-primary);
  color: var(--kd-primary-dark);
}

/* ===== PUNT 6: WOORDEN SELECTEREN ===== */
.kd-woord-select-container {
  text-align: center;
}

.kd-woord-select-zin {
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 2.4;
  color: var(--kd-text);
  margin-bottom: 28px;
  text-align: center;
  padding: 20px;
  background: rgba(75, 173, 255, 0.04);
  border-radius: var(--radius-lg);
}

.kd-woord-select-item {
  display: inline;
  padding: 4px 6px;
  margin: 2px 0;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s var(--ease-out-expo);
  border-bottom: 3px solid transparent;
  user-select: none;
  -webkit-user-select: none;
}

.kd-woord-select-item:hover:not(.correct):not(.incorrect) {
  background: var(--kd-primary-light);
  border-bottom-color: var(--kd-primary);
}

.kd-woord-select-item.selected {
  background: var(--kd-primary-light);
  border-bottom-color: var(--kd-primary);
  color: var(--kd-primary-dark);
  font-weight: 600;
}

.kd-woord-select-item.correct {
  background: var(--kd-success-light);
  border-bottom-color: var(--kd-success);
  color: var(--kd-success-dark);
}

.kd-woord-select-item.incorrect {
  background: var(--kd-error-light);
  border-bottom-color: var(--kd-error);
  color: var(--kd-error-dark);
}

@media (max-width: 600px) {
  .kd-woord-select-zin {
    font-size: 1.15rem;
    line-height: 2.2;
    padding: 16px;
  }
  
  .kd-zin-word {
    padding: 10px 16px;
    font-size: 0.95rem;
  }
}
/* ===== FEEDBACK BUTTON ROW ===== */
.kd-feedback-btn-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  position: relative;
}

.kd-report-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--kd-text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
  transition: all 0.2s ease;
  position: absolute;
  right: 0;
}

.kd-report-btn:hover {
  color: var(--kd-text);
  background: rgba(0,0,0,0.05);
}

.kd-report-btn svg {
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .kd-feedback-btn-row {
    flex-direction: column;
    gap: 12px;
  }
  
  .kd-report-btn {
    position: static;
    order: 2;
  }
}

/* ===== RAPPORTEER POPUP ===== */
.kd-report-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
}

.kd-report-popup {
  background: var(--kd-card);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  max-width: 400px;
  width: 100%;
  position: relative;
  box-shadow: var(--shadow-lg);
  animation: popupSlide 0.3s var(--ease-out-expo);
}

@keyframes popupSlide {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
}

.kd-report-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--kd-border);
  color: var(--kd-text-secondary);
  font-size: 1rem;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all 0.2s ease;
}

.kd-report-close:hover {
  background: var(--kd-error-light);
  color: var(--kd-error);
}

.kd-report-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--kd-text);
  margin: 0 0 20px;
}

.kd-report-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.kd-report-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 2px solid var(--kd-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--kd-text);
  transition: all 0.2s ease;
  user-select: none;
}

.kd-report-option:hover {
  border-color: var(--kd-primary);
  background: var(--kd-primary-light);
}

.kd-report-option input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--kd-primary);
  flex-shrink: 0;
}

.kd-report-option input[type="checkbox"]:checked + span {
  color: var(--kd-primary-dark);
}

.kd-report-textarea {
  width: 100%;
  margin-top: 12px;
  padding: 10px 14px;
  border: 2px solid var(--kd-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--kd-text);
  background: var(--kd-card);
  resize: vertical;
  min-height: 70px;
  box-sizing: border-box;
}

.kd-report-textarea:focus {
  outline: none;
  border-color: var(--kd-primary);
}

.kd-report-textarea::placeholder {
  color: var(--kd-text-secondary);
  font-weight: 400;
}

/* ===== VUL-IN MEERKEUZE MODUS ===== */
.kd-vulin-blank-mc {
  cursor: pointer;
  min-width: 60px;
  text-align: center;
  user-select: none;
  -webkit-user-select: none;
}

.kd-vulin-blank-mc.filled {
  background: var(--kd-primary-light);
  border-bottom-color: var(--kd-primary);
  color: var(--kd-primary-dark);
  font-weight: 600;
}

.kd-vulin-blank-mc:hover:not(.correct):not(.incorrect) {
  background: rgba(75, 173, 255, 0.15);
  transform: translateY(-1px);
}

.kd-vulin-mc-blocks {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 24px 0 8px;
}

.kd-vulin-mc-block {
  padding: 10px 18px;
  background: var(--kd-card);
  border: 3px solid var(--kd-border);
  border-radius: var(--radius-md);
  font-size: 1.05rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--kd-text);
  cursor: pointer;
  transition: all 0.25s var(--ease-out-expo);
  user-select: none;
  -webkit-user-select: none;
}

.kd-vulin-mc-block:hover:not(.used) {
  border-color: var(--kd-primary);
  transform: scale(1.05);
  box-shadow: var(--shadow-sm);
}

.kd-vulin-mc-block.used {
  opacity: 0.3;
  transform: scale(0.95);
  pointer-events: none;
  border-style: dashed;
}

.kd-vulin-mc-separator {
  width: 100%;
  height: 1px;
  background: var(--kd-border);
  margin: 4px 0;
}

.kd-vulin-mc-group-label {
  width: 100%;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--kd-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== INTRO SCHERM ===== */
.kd-intro-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 100%;
  padding: 32px 20px;
  animation: endEnter 0.8s var(--ease-out-expo);
}

.kd-intro-title {
  font-size: clamp(1.6rem, 5vw, 2.2rem);
  font-weight: 600;
  color: var(--kd-text);
  margin: 0 0 20px;
}

.kd-intro-image {
  margin: 0 0 24px;
}

.kd-intro-image img {
  max-width: 280px;
  max-height: 200px;
  border-radius: var(--radius-lg);
  object-fit: contain;
  box-shadow: var(--shadow-md);
}

.kd-intro-text {
  max-width: 500px;
  margin: 0 0 24px;
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--kd-text-secondary);
}

.kd-intro-text p {
  margin: 0 0 8px;
}

.kd-intro-info {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--kd-primary-light);
  color: var(--kd-primary-dark);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 28px;
}

.kd-intro-start-btn {
  padding: 18px 60px;
  font-size: 1.2rem;
}

@media (max-width: 600px) {
  .kd-intro-screen {
    padding: 24px 16px;
  }
  
  .kd-intro-image img {
    max-width: 200px;
    max-height: 150px;
  }
  
  .kd-intro-text {
    font-size: 1rem;
  }
  
  .kd-intro-start-btn {
    padding: 16px 48px;
    font-size: 1.1rem;
  }
}

/* v4.2: Oude upsell CSS verwijderd — nu in kd-funnel.css */

/* ===== LEESTEKST TYPE ===== */
.kd-leestekst-wrapper {
  max-width: 680px;
  margin: 0 auto;
  animation: textFloat 0.7s var(--ease-out-expo) 0.1s backwards;
  padding-bottom: 16px;
}

.kd-leestekst-image {
  width: 100%;
  max-height: 300px;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.kd-leestekst-image img {
  max-width: 100%;
  max-height: 300px;
  object-fit: contain;
  display: block;
  margin: 0 auto;
}

.kd-leestekst-title {
  font-size: clamp(1.3rem, 3.5vw, 1.6rem);
  font-weight: 700;
  color: var(--kd-primary-dark, #6C3FA5);
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.3;
}

.kd-leestekst-content {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 16px;
  padding: 28px 32px;
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  line-height: 1.75;
  color: var(--kd-text, #1a1a2e);
  margin-bottom: 28px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

/* Scroll-hint: klein pijltje vast onderaan, boven de Volgende knop */
.kd-leestekst-scroll-hint {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: 50%;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
  animation: scrollHintBounce 1.5s ease-in-out infinite;
  transition: opacity 0.4s ease;
  z-index: 200;
  pointer-events: none;
}

.kd-leestekst-scroll-hint.hidden {
  opacity: 0;
}

.kd-leestekst-scroll-hint svg {
  width: 18px;
  height: 18px;
  color: var(--kd-primary, #4BADFF);
}

@keyframes scrollHintBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(5px); }
}

.kd-leestekst-content p {
  margin: 0 0 14px 0;
}

.kd-leestekst-content p:last-child {
  margin-bottom: 0;
}

.kd-leestekst-content strong,
.kd-leestekst-content b {
  font-weight: 700;
  color: var(--kd-primary-dark, #6C3FA5);
}

.kd-leestekst-content em,
.kd-leestekst-content i {
  font-style: italic;
}

.kd-leestekst-content ul,
.kd-leestekst-content ol {
  margin: 12px 0;
  padding-left: 24px;
}

.kd-leestekst-content li {
  margin-bottom: 6px;
}

.kd-leestekst-content h3 {
  font-size: 1.2em;
  font-weight: 700;
  color: var(--kd-text, #1a1a2e);
  margin: 20px 0 10px 0;
}

.kd-leestekst-content h4 {
  font-size: 1.05em;
  font-weight: 600;
  color: var(--kd-text-secondary, #555);
  margin: 16px 0 8px 0;
}

.kd-leestekst-content blockquote {
  border-left: 4px solid var(--kd-primary, #8B5CF6);
  margin: 16px 0;
  padding: 12px 20px;
  background: rgba(139, 92, 246, 0.05);
  border-radius: 0 12px 12px 0;
  font-style: italic;
  color: var(--kd-text-secondary, #555);
}

@media (max-width: 700px) {
  .kd-leestekst-content {
    padding: 20px 20px;
    font-size: 1rem;
    border-radius: 12px;
  }
  
  .kd-leestekst-image {
    max-height: 200px;
    border-radius: 12px;
  }
  
  .kd-leestekst-image img {
    max-height: 200px;
    object-fit: contain;
  }
  
  .kd-leestekst-title {
    font-size: 1.2rem;
  }
  
  .kd-leestekst-scroll-hint {
    bottom: 80px;
    width: 32px;
    height: 32px;
  }
  
  .kd-leestekst-scroll-hint svg {
    width: 16px;
    height: 16px;
  }
}

/* ===== EXIT CONFIRMATION POPUP ===== */
.kd-exit-confirm {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.6);
  display: flex;
  align-items: center;
  justify-content: center;
  /* Boven de meting-modal (z-index 100000 in meting-engine.css):
     deze dialoog wordt ook vanuit een lopende toets geopend. */
  z-index: 100001;
  padding: 20px;
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity .25s ease;
}
.kd-exit-confirm.active { opacity: 1; }
.kd-exit-confirm__card {
  background: #fff;
  border-radius: 20px;
  max-width: 380px;
  width: 100%;
  padding: 32px 28px 24px;
  text-align: center;
  box-shadow: 0 25px 60px -10px rgba(0,0,0,.3);
  transform: scale(.92);
  transition: transform .25s cubic-bezier(.34,1.56,.64,1);
}
.kd-exit-confirm.active .kd-exit-confirm__card { transform: scale(1); }
.kd-exit-confirm__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #fef3c7;
  color: #d97706;
  margin-bottom: 14px;
}
.kd-exit-confirm__title {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -.02em;
}
.kd-exit-confirm__text {
  margin: 0 0 22px;
  font-size: 14px;
  color: #64748b;
  line-height: 1.55;
}
.kd-exit-confirm__actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.kd-exit-confirm__btn {
  padding: 13px 24px;
  border: none;
  border-radius: 12px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: .18s;
}
.kd-exit-confirm__btn--stay {
  background: linear-gradient(135deg, #1A73B5, #0FA573);
  color: #fff;
  box-shadow: 0 4px 14px rgba(26,115,181,.25);
}
.kd-exit-confirm__btn--stay:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26,115,181,.35);
}
.kd-exit-confirm__btn--leave {
  background: #f1f5f9;
  color: #64748b;
}
.kd-exit-confirm__btn--leave:hover {
  background: #fef2f2;
  color: #dc2626;
}

/* ===== HERHAAL FOUTEN NOTICE ===== */
.kd-herhaal-notice {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 24px;
  min-height: 300px;
  animation: herhaalFadeIn .4s ease-out;
}
@keyframes herhaalFadeIn { from { opacity:0; transform:translateY(16px); } to { opacity:1; transform:translateY(0); } }
.kd-herhaal-notice__icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  border-radius: 50%;
  margin-bottom: 20px;
  color: #d97706;
}
.kd-herhaal-notice h2 {
  font-size: 22px;
  font-weight: 800;
  color: #1e293b;
  margin: 0 0 10px;
}
.kd-herhaal-notice p {
  font-size: 15px;
  color: #64748b;
  line-height: 1.6;
  max-width: 380px;
  margin: 0 0 28px;
}
.kd-herhaal-notice__btn {
  font-size: 16px !important;
  padding: 14px 40px !important;
  border-radius: 14px !important;
  font-weight: 700 !important;
}

/* ===== ADMIN DEBUG PANEL ===== */
.kd-admin-debug {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 999999;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 13px;
}
.kd-admin-debug__toggle {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 1000000;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 2px solid #4BADFF;
  background: #1a1d29;
  color: #4BADFF;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, transform 0.15s;
}
.kd-admin-debug__toggle:hover {
  background: #2a2d39;
  transform: scale(1.05);
}
.kd-admin-debug__panel {
  position: fixed;
  top: 0;
  right: -400px;
  width: 380px;
  height: 100vh;
  background: #1a1d29;
  color: #e2e8f0;
  border-left: 3px solid #4BADFF;
  overflow-y: auto;
  transition: right 0.25s ease;
  box-shadow: -4px 0 20px rgba(0,0,0,0.5);
}
.kd-admin-debug--open .kd-admin-debug__panel {
  right: 0;
}
.kd-admin-debug--open .kd-admin-debug__toggle {
  right: 392px;
}
.kd-admin-debug__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid #2d3348;
  background: #151823;
  position: sticky;
  top: 0;
  z-index: 1;
}
.kd-admin-debug__title {
  font-weight: 700;
  font-size: 14px;
  color: #4BADFF;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.kd-admin-debug__close {
  background: none;
  border: none;
  color: #94a3b8;
  font-size: 22px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}
.kd-admin-debug__close:hover { color: #fff; }
.kd-admin-debug__body {
  padding: 0;
}
.kd-adb__section {
  padding: 14px 16px;
  border-bottom: 1px solid #2d3348;
}
.kd-adb__section-title {
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 8px;
}
.kd-adb__section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.kd-adb__row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.kd-adb__label {
  font-size: 11px;
  font-weight: 600;
  color: #64748b;
  text-transform: uppercase;
  min-width: 50px;
}
.kd-adb__link {
  color: #4BADFF;
  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
}
.kd-adb__link:hover { text-decoration: underline; }
.kd-adb__check {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  cursor: pointer;
  font-size: 13px;
  color: #cbd5e1;
}
.kd-adb__check input[type="checkbox"] {
  accent-color: #4BADFF;
  width: 16px;
  height: 16px;
}
.kd-adb__btn-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.kd-adb__btn {
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid #3d4560;
  background: #252a3a;
  color: #e2e8f0;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}
.kd-adb__btn:hover { background: #3d4560; }
.kd-adb__btn--primary {
  background: #4BADFF;
  border-color: #4BADFF;
  color: #fff;
  font-weight: 600;
}
.kd-adb__btn--primary:hover { background: #2E8FD9; }
.kd-adb__btn--sm {
  padding: 3px 8px;
  font-size: 11px;
}
.kd-adb__select {
  width: 100%;
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid #3d4560;
  background: #252a3a;
  color: #e2e8f0;
  font-size: 12px;
}
.kd-adb__info-grid {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 8px 12px;
  align-items: start;
  font-size: 12px;
  line-height: 1.4;
}
.kd-adb__info-grid .kd-adb__label {
  min-width: unset;
  padding-top: 1px;
}
.kd-adb__info-grid > span:nth-child(even) {
  color: #e2e8f0;
  word-break: break-word;
}
.kd-adb__hint {
  font-size: 11px;
  color: #f59e0b;
  font-style: italic;
  margin: 0 0 6px;
}
.kd-adb__textarea {
  width: 100%;
  min-height: 60px;
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid #3d4560;
  background: #252a3a;
  color: #e2e8f0;
  font-size: 12px;
  resize: vertical;
  margin-bottom: 8px;
  box-sizing: border-box;
}
.kd-adb__details {
  border-bottom: 1px solid #2d3348;
}
.kd-adb__details summary {
  padding: 12px 16px;
  cursor: pointer;
  user-select: none;
}
.kd-adb__details[open] summary {
  border-bottom: 1px solid #2d3348;
}
.kd-adb__pre {
  padding: 12px 16px;
  font-size: 11px;
  line-height: 1.5;
  color: #a5f3fc;
  overflow-x: auto;
  max-height: 300px;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-all;
}
.kd-adb__api-log {
  padding: 8px 16px;
  max-height: 250px;
  overflow-y: auto;
}
.kd-adb__api-entry {
  padding: 4px 0;
  font-size: 11px;
  border-bottom: 1px solid #252a3a;
  color: #94a3b8;
}
.kd-adb__api-time {
  color: #64748b;
  margin-right: 6px;
}

/* Overlay: debug panel past zich aan */
.kd-leer-overlay .kd-admin-debug__toggle {
  position: absolute;
}
.kd-leer-overlay .kd-admin-debug__panel {
  position: absolute;
}