/* =============================================================================
   quiz.css — "What Kind of AI User Are You?"
   Center for Digital Thriving, Harvard GSE
   ============================================================================= */

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

#ai-quiz {
  --bg: #0a1c2a;
  --text: #ffffff;
  --accent-pink: #e577cb;
  --accent-coral: #ff9d6c;
  --accent-yellow: #f7f2a1;
  --btn-bg: #ffffff;
  --btn-text: #0a1c2a;
  --radius: 0.33rem;
  --max-w: 1000px;
  --font-heading: "Syne", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-ui: "Pathway Extreme", sans-serif;

  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 2rem 1rem;
}

#ai-quiz a {
  color: var(--accent-pink);
  text-decoration: underline;
}

#ai-quiz a:hover {
  color: var(--accent-coral);
}

/* ---------------------------------------------------------------------------
   Container
   --------------------------------------------------------------------------- */
.quiz-container {
  max-width: var(--max-w);
  width: 100%;
  position: relative;
}

/* ---------------------------------------------------------------------------
   Screens (intro, question, results) — fade transitions
   --------------------------------------------------------------------------- */
.quiz-screen {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  display: none;
}

.quiz-screen.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* Allow the enter animation to play */
.quiz-screen.entering {
  display: block;
  opacity: 0;
  transform: translateY(12px);
}

/* ---------------------------------------------------------------------------
   Intro Screen
   --------------------------------------------------------------------------- */
.quiz-intro {
  text-align: center;
  padding: 3rem 0;
}

.quiz-intro h1 {
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  letter-spacing: 0.04em;
  margin-bottom: 1.5rem;
  color: var(--accent-yellow);
}

.quiz-intro p {
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto 2.5rem;
  color: rgba(255, 255, 255, 0.85);
}

/* ---------------------------------------------------------------------------
   Buttons
   --------------------------------------------------------------------------- */
.quiz-btn {
  display: inline-block;
  background: var(--btn-bg);
  color: var(--btn-text);
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 1rem;
  padding: 0.85rem 2.5rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.1s ease;
}

.quiz-btn:hover {
  background: var(--accent-pink);
  color: #fff;
}

.quiz-btn:active {
  transform: scale(0.97);
}

/* ---------------------------------------------------------------------------
   Progress Bar
   --------------------------------------------------------------------------- */
.quiz-progress {
  margin-bottom: 2rem;
}

.quiz-progress-label {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.quiz-back-btn {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  font-size: 1rem;
  cursor: pointer;
  padding: 0.1rem 0.25rem;
  line-height: 1;
  border-radius: var(--radius);
  transition: color 0.2s ease;
}

.quiz-back-btn:hover {
  color: var(--accent-pink);
}

.quiz-back-btn:focus-visible {
  outline: 2px solid var(--accent-yellow);
  outline-offset: 2px;
}

.quiz-progress-bar {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-pink), var(--accent-coral));
  border-radius: 2px;
  transition: width 0.4s ease;
}

/* ---------------------------------------------------------------------------
   Question Screen
   --------------------------------------------------------------------------- */
.quiz-question-text {
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  font-size: clamp(1.25rem, 3.5vw, 1.75rem);
  margin-bottom: 2rem;
  line-height: 1.4;
  color: var(--accent-yellow);
}

/* ---------------------------------------------------------------------------
   Answer Buttons (full-width cards)
   --------------------------------------------------------------------------- */
.quiz-answers {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.quiz-answer-btn {
  display: block;
  width: 100%;
  text-align: left;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 1rem;
  line-height: 1.5;
  padding: 1rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.1s ease;
}

.quiz-answer-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--accent-pink);
}

.quiz-answer-btn:active {
  transform: scale(0.985);
}

.quiz-answer-btn.selected {
  background: var(--accent-pink);
  border-color: var(--accent-pink);
  color: #fff;
}

/* ---------------------------------------------------------------------------
   Results Screen
   --------------------------------------------------------------------------- */
.quiz-results {
  padding: 2rem 0;
}

.quiz-results-headline {
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  font-size: clamp(1.5rem, 4.5vw, 2.5rem);
  letter-spacing: 0.04em;
  margin-bottom: 2.5rem;
  color: var(--accent-yellow);
  line-height: 1.3;
}

/* Dimension result cards */
.quiz-dimension {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius);
  border-left: 3px solid var(--accent-pink);
}

.quiz-dimension--market {
  border-left-color: var(--accent-coral);
}

.quiz-dimension--self {
  border-left-color: var(--accent-yellow);
}

.quiz-dimension-title {
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 1rem;
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.quiz-dimension-level {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 0.75rem;
}

.quiz-dimension-text {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
}

/* Score bar visualization */
.quiz-score-bar {
  margin: 0.75rem 0;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: hidden;
}

.quiz-score-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.6s ease;
}

.quiz-dimension--tech .quiz-score-fill {
  background: var(--accent-pink);
}
.quiz-dimension--market .quiz-score-fill {
  background: var(--accent-coral);
}
.quiz-dimension--self .quiz-score-fill {
  background: var(--accent-yellow);
}

/* ---------------------------------------------------------------------------
   Resources Section
   --------------------------------------------------------------------------- */
.quiz-resources {
  margin-top: 2.5rem;
}

.quiz-resources-heading {
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 1.15rem;
  letter-spacing: 0.06em;
  margin-bottom: 1.5rem;
  color: var(--accent-coral);
}

.quiz-resource-group {
  margin-bottom: 1.5rem;
}

.quiz-resource-group h4 {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
  color: rgba(255, 255, 255, 0.7);
}

.quiz-resource-group ul {
  list-style: none;
  padding: 0;
}

.quiz-resource-group li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.5;
}

.quiz-resource-group li::before {
  content: "\2192";
  position: absolute;
  left: 0;
  color: var(--accent-coral);
}

/* ---------------------------------------------------------------------------
   Retake Button
   --------------------------------------------------------------------------- */
.quiz-retake-wrap {
  text-align: center;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ---------------------------------------------------------------------------
   Responsive
   --------------------------------------------------------------------------- */
@media (max-width: 600px) {
  #ai-quiz {
    padding: 1.25rem 0.75rem;
  }

  .quiz-intro {
    padding: 1.5rem 0;
  }

  .quiz-answer-btn {
    font-size: 0.95rem;
    padding: 0.85rem 1rem;
  }

  .quiz-dimension {
    padding: 1.25rem 1rem;
  }
}

/* ---------------------------------------------------------------------------
   Accessibility
   --------------------------------------------------------------------------- */
.quiz-btn:focus-visible,
.quiz-answer-btn:focus-visible {
  outline: 2px solid var(--accent-yellow);
  outline-offset: 2px;
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}