/*
KennisSprint dataset
© Joas de Wit
2026
*/
body {
  font-family: Arial, Helvetica, sans-serif;
  background: #f2f4f7;
  margin: 0;
  padding: 40px;
  color: #111827;
}

.page {
  display: flex;
  justify-content: center;
}

.card {
  background: #ffffff;
  width: 100%;
  max-width: 700px;
  padding: 40px;
  border-radius: 10px;
  box-sizing: border-box;
}

h1 {
  margin: 12px 0 18px 0;
  font-size: 38px;
  line-height: 1.08;
}

h2 {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
}

.intro {
  color: #555;
  font-size: 16px;
  line-height: 1.45;
  margin: 0 0 30px 0;
}

.back-link {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 16px;
  color: #2563eb;
  text-decoration: underline;
}

/* ===== SELECTIESCHERM / COURSE FLOW ===== */

.controls {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 30px;
}

.form-row {
  display: grid;
  grid-template-columns: 220px 320px;
  align-items: start;
  gap: 20px;
}

.form-row-bottom,
.form-row-button {
  display: grid;
  grid-template-columns: 220px 320px;
  align-items: center;
  gap: 20px;
}

.form-row label,
.form-row-bottom label,
.form-row-button label {
  font-weight: 600;
  font-size: 16px;
  line-height: 1.3;
}

.mode-wrap {
  display: grid;
}

.chapter-row {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 16px;
}


.chapter-tiles-wrap {
  width: 100%;
  max-width: 920px;
  max-height: 360px;
  overflow-y: auto;
  position: relative;
  padding-bottom: 8px; /* ruimte voor fade */
}
.chapter-tiles-wrap::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 70px;
  pointer-events: none;
  background: linear-gradient(
    to bottom,
    rgba(255,255,255,0),
    rgba(255,255,255,0.6),
    rgba(255,255,255,1)
  );
}

.chapter-tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.chapter-tile-grid.compact {
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.chapter-tile,
.chapter-list-item {
  min-height: 72px;
  padding: 16px;
  border: 1px solid #d6dbe3;
  border-radius: 10px;
  background: #ffffff;
  font-size: 15px;
  line-height: 1.3;
  text-align: left;
  display: flex;
  align-items: center;
  cursor: pointer;
  box-sizing: border-box;
  transition: all 0.12s ease;
}

.chapter-tile-grid.compact .chapter-tile,
.chapter-tile-grid.compact .chapter-list-item {
  min-height: 56px;
  padding: 12px;
  font-size: 13px;
  line-height: 1.2;
  border-radius: 8px;
}

.chapter-tile:hover,
.chapter-list-item:hover {
  background: #f4f6fb;
  border-color: #bfc7d4;
}

.chapter-tile.selected,
.chapter-list-item.selected {
  border-color: #4f46e5;
  background: #eef2ff;
  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.15);
}

.chapter-list-item {
  min-height: 56px;
  width: 100%;
}

.chapter-selection-summary {
  margin-top: 22px;
  margin-bottom: 6px;
  font-size: 14px;
  line-height: 1.4;
  color: #6b7280;
}
.chapter-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-top: 10px;
  margin-bottom: 4px;
  font-size: 13px;
  line-height: 1.4;
  color: #6b7280;
}

.chapter-legend-title {
  font-weight: 600;
  color: #4b5563;
  margin-right: 2px;
}

.chapter-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.chapter-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  display: inline-block;
  flex: 0 0 10px;
}

.chapter-legend-dot.is-gray { background: #e5e7eb; }
.chapter-legend-dot.is-green { background: #22c55e; }
.chapter-legend-dot.is-blue { background: #3b82f6; }
.chapter-legend-dot.is-purple { background: #8b5cf6; }
.chapter-legend-dot.is-orange { background: #f59e0b; }
select,
button {
  font-size: 16px;
  padding: 8px 12px;
  box-sizing: border-box;
}

#modeSelect {
  width: 320px;
  height: 42px;
}


/* ===== LANDING PAGE (index.html) ===== */

.course-picker {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 26px;
}

.picker-row {
  display: grid;
  grid-template-columns: 120px 280px;
  align-items: center;
  gap: 16px;
}

.picker-row label {
  font-weight: 600;
  font-size: 16px;
}

#subjectSelect,
#levelSelect,
#gradeSelect {
  height: 42px;
}

.landing-actions {
  margin-top: 16px;
}

#openCourseButton {
  width: 180px;
  height: 42px;
}

#selectionMessage {
  margin-top: 14px;
  color: #666;
  font-size: 14px;
}

/* ===== QUIZ ===== */

.hidden {
  display: none !important;
}

#endScreen.hidden {
  display: none !important;
}

#quizArea {
  margin-top: 8px;
}

.quiz-topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
}

.quiz-session-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.quiz-session-title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: #111827;
}

.quiz-session-mode {
  font-size: 14px;
  color: #6b7280;
}
.start-session-block {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.start-session-hint {
  font-size: 14px;
  line-height: 1.4;
  color: #6b7280;
}
#stopButton {
  height: 42px;
  min-width: 120px;
  white-space: nowrap;
}

.scoreboard {
  margin-bottom: 20px;
  font-size: 16px;
  line-height: 1.35;
}

.progressbar {
  width: 100%;
  height: 14px;
  background: #ddd;
  border-radius: 10px;
  overflow: hidden;
  margin: 8px 0 16px 0;
}

#progressFill {
  height: 100%;
  width: 0%;
  background: #4caf50;
  transition: width 0.25s ease;
}

.stars {
  position: relative;
  font-size: 24px;
  letter-spacing: 3px;
  width: max-content;
  line-height: 1;
}

.stars-base {
  color: #ddd;
}

.stars-fill {
  position: absolute;
  top: 0;
  left: 0;
  white-space: nowrap;
  overflow: hidden;
  color: #111827;
  width: 0%;
}

.question-box {
  margin-bottom: 20px;
}

.prompt-box {
  background: #f7f7f7;
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 20px;
}

.question-label {
  font-size: 12px;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 8px;
}

#termDisplay {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
}

.answers {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 18px;
}

.answer {
  background: #eef2ff;
  border: none;
  padding: 12px;
  text-align: left;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
  line-height: 1.4;
}

.answer:hover {
  background: #dde5ff;
}

.typed-recall-area {
  margin-bottom: 18px;
  padding: 16px;
  border: 1px dashed #cbd5e1;
  border-radius: 10px;
  background: #f8fafc;
}

.typed-recall-intro-label,
.typed-recall-input-label {
  font-size: 13px;
  color: #6b7280;
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

.typed-recall-answer-preview {
  font-size: 18px;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.4;
}

.typed-recall-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.typed-recall-input {
  width: 100%;
  height: 44px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  padding: 0 12px;
  font-size: 16px;
  box-sizing: border-box;
}

.typed-recall-submit {
  align-self: flex-start;
  min-width: 140px;
  height: 42px;
  font-size: 16px;
}

.typed-recall-label {
  font-size: 12px;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
  font-weight: 700;
}

.typed-recall-placeholder {
  font-size: 18px;
  font-weight: 600;
  color: #0f172a;
}

.correct {
  background: #2ecc71;
  color: white;
  border: 3px solid #27ae60;
  transform: scale(1.01);
  font-weight: 600;
}

.wrong {
  background: #e74c3c;
  color: white;
  border: 3px solid #c0392b;
}

#nextButton,
#restartButton,
#retryWrongButton,
#backToCourseButton {
  min-width: 160px;
  height: 42px;
  font-size: 16px;
}

#endScreen {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(560px, calc(100vw - 40px));
  max-height: 78vh;
  padding: 20px 20px 18px;
  border-radius: 18px;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  box-shadow:
    0 18px 48px rgba(15, 23, 42, 0.16),
    0 0 0 100vmax rgba(15, 23, 42, 0.18);
  z-index: 9999;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

#endScreen h2 {
  margin: 0 0 8px;
  font-size: 28px;
  line-height: 1.1;
}

#endScreen p {
  font-size: 15px;
  line-height: 1.4;
}

#endScreen #finalScoreText {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 4px;
}

#endScreen #finalStars {
  font-size: 24px;
  margin: 0 0 12px;
}

#endScreen #wrongCountText {
  margin: 0 0 10px;
}

.session-results-list {
  margin: 18px 0 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  max-height: 40vh;
  padding-right: 4px;
}

.endscreen-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 6px;
  border-top: 1px solid #eef2f7;
}
/* ===== FEEDBACK POPUP ===== */

.feedback {
  font-weight: bold;
  margin-bottom: 15px;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.98);
  z-index: 1000;
  width: min(760px, calc(100vw - 48px));
  padding: 28px;
  border-radius: 16px;
  background: #ffffff;
  color: #111827;
  text-align: center;
  border: 1px solid #d9dde3;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.10);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.16s ease, opacity 0.16s ease;
  box-sizing: border-box;
}

.feedback.show {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

.feedback.good {
  background: #ffffff;
  border-top: 4px solid #22c55e;
}

.feedback.bad {
  background: #ffffff;
  border-top: 4px solid #ef4444;
}

.feedback-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #dc2626;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.feedback-term {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 18px;
  color: #111827;
}

.feedback-answer-box {
  background: #f8fafc;
  color: #111827;
  border: 1px solid #d9dde3;
  border-left: 4px solid #22c55e;
  border-radius: 12px;
  padding: 18px 20px;
  margin: 0 0 20px 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
  text-align: left;
}

.feedback-continue-button {
  appearance: none;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  padding: 10px 20px;
  font-size: 16px;
  font-weight: 700;
  background: #f3f4f6;
  color: #111827;
  cursor: pointer;
}

.feedback-continue-button:hover {
  background: #e5e7eb;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  backdrop-filter: blur(14px);
  background: rgba(0, 0, 0, 0.25);
  z-index: 999;
}

/* ===== SCHERMFLOW ===== */

body.quiz-active .back-link,
body.quiz-active h1,
body.quiz-active .intro,
body.quiz-active .controls {
  display: none;
}

/* ===== MOBILE ===== */

.top-links {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.top-links > div:last-child {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  body {
    padding: 20px;
  }

  .card {
    width: 100%;
    padding: 24px;
  }

  .form-row,
  .form-row-bottom,
  .form-row-button,
  .picker-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .chapter-tiles-wrap {
    width: 100%;
  }

  .chapter-tile-grid {
    grid-template-columns: 1fr;
  }

  #modeSelect,
  #startButton,
  #stopButton,
  #openCourseButton,
  #subjectSelect,
  #levelSelect,
  #gradeSelect,
  #restartButton,
  #retryWrongButton,
  select,
  button {
    width: 100%;
    max-width: none;
  }

  .quiz-topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .feedback {
    width: min(92vw, 760px);
    padding: 22px;
  }

  .top-links {
    align-items: stretch;
  }

  .top-links > div:last-child {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .top-links > div:last-child a,
  .top-links > div:last-child button {
    width: 100%;
    justify-content: center;
    box-sizing: border-box;
  }
}
}

/* ===== ACCOUNT BUTTON ===== */



.account-button:hover {
  background: #f3f4f6;
}

/* ===== ACCOUNT MENU ===== */

#accountMenu {
  background: white;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  padding: 6px;
  min-width: 160px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

#accountMenu button {
  width: 100%;
  padding: 8px 10px;
  text-align: left;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 6px;
}

#accountMenu button:hover {
  background: #f3f4f6;
}

.chapter-tile {
  position: relative;
  overflow: hidden;
}

.chapter-tile::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 6px;
  width: 100%;
  background: var(--chapter-mastery-bar, #e5e7eb);
}

.session-results-list {
  margin: 24px 0 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.session-result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  background: #f8fafc;
  border: 1px solid #e5e7eb;
}

.session-result-delta {
  min-width: 56px;
  font-weight: 700;
}

.session-result-item.is-correct .session-result-delta {
  color: #16a34a;
}

.session-result-item.is-wrong .session-result-delta {
  color: #dc2626;
}

.session-result-term {
  color: #0f172a;
}

.term-mastery-new {
  color: #6b7280;
}

.term-mastery-training {
  color: #16a34a;
}

.term-mastery-good {
  color: #2563eb;
}

.term-mastery-mastered {
  color: #7c3aed;
}

.term-mastery-perfect {
  color: #ea580c;
}

.prompt-box.mastery-gray,
.prompt-box.mastery-green,
.prompt-box.mastery-blue,
.prompt-box.mastery-purple,
.prompt-box.mastery-orange{
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-left-width: 10px;
} 

.prompt-box.mastery-gray{
  border-left-color: #9ca3af;
}

.prompt-box.mastery-green{
  border-left-color: #22c55e;
}

.prompt-box.mastery-blue{
  border-left-color: #3b82f6;
}

.prompt-box.mastery-purple{
  border-left-color: #a855f7;
}

.prompt-box.mastery-orange{
  border-left-color: #f59e0b;
}
#termDisplay{
  color: #0f172a;
}
#masterySegments,
.mastery-segments{
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  margin: 10px 0 16px;
  flex-wrap: nowrap;
}

#masterySegments .mastery-segment,
.mastery-segments .mastery-segment{
  display: inline-block;
  flex: 0 0 auto;
}

.mastery-segment{
  width: 34px;
  height: 8px;
  border-radius: 999px;
  background: #e5e7eb;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.mastery-segment.is-filled{
  background: currentColor;
  animation: masteryGrow 0.2s ease-out;
}

@keyframes masteryGrow{
  0%{
    transform: scale(0.6);
    opacity:0.4;
  }
  60%{
    transform: scale(1.15);
  }
  100%{
    transform: scale(1);
    opacity:1;
  }
}

.prompt-box.mastery-gray .mastery-segment.is-filled{
  background: #9ca3af;
}

.prompt-box.mastery-green .mastery-segment.is-filled{
  background: #22c55e;
}

.prompt-box.mastery-blue .mastery-segment.is-filled{
  background: #3b82f6;
}

.prompt-box.mastery-purple .mastery-segment.is-filled{
  background: #a855f7;
}

.prompt-box.mastery-orange .mastery-segment.is-filled{
  background: #f59e0b;
}
.prompt-box.mastery-promoted-perfect{
  animation: masteryPerfectGlow 0.6s ease-out;
}

@keyframes masteryPerfectGlow{
  0%{
    box-shadow: 0 0 0 rgba(245, 158, 11, 0);
  }
  30%{
    box-shadow:
      0 0 0 2px rgba(245, 158, 11, 0.22),
      0 0 18px rgba(245, 158, 11, 0.28);
  }
  100%{
    box-shadow: 0 0 0 rgba(245, 158, 11, 0);
  }
}
.account-button{
display:flex;
align-items:center;
gap:8px;
padding:6px 10px;
border-radius:10px;
border:1px solid #d1d5db;
background:white;
cursor:pointer;
}
/* ===== BUTTON SYSTEM ===== */

.button{
display:inline-flex;
align-items:center;
justify-content:center;
gap:8px;

padding:14px 22px;
font-size:16px;
font-weight:600;

border-radius:14px;
border:1px solid transparent;

cursor:pointer;
white-space:nowrap;
transition:all .15s ease;
}

.button-primary{
background:#0f172a;
color:white;
border-color:#0f172a;
}

.button-primary:hover{
background:#1f2937;
border-color:#1f2937;
transform:translateY(-1px);
}

.button-secondary{
background:#ffffff;
color:#0f172a;
border:1px solid #d1d5db;
}

.button-secondary:hover{
background:#f3f4f6;
}

.button:active{
transform:translateY(0);
}

.button:disabled{
opacity:.55;
cursor:not-allowed;
transform:none;
}
.forgot-password {
  margin-top: 6px;
  font-size: 14px;
}

.forgot-password a {
  color: #475569;
  text-decoration: none;
}

.forgot-password a:hover {
  text-decoration: underline;
}