/*  styles/quiz.css
    Styles for the Prompt Engineering quiz.
    Uses design tokens from base.css.
*/

/* ── Quiz container ─────────────────────────────────────────── */
.quiz-wrap {
  max-width: var(--col-body);
  margin-inline: auto;
  padding: 6rem var(--gutter) 4rem;
}

/* ── Intro screen ───────────────────────────────────────────── */
.quiz-intro {
  text-align: center;
  padding-block: 2rem;
}



.quiz-intro__title {
  font-family: var(--font-serif);
  font-size: var(--text-3xl);
  font-weight: 500;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.quiz-intro__desc {
  font-family: var(--font-sans);
  font-size: var(--text-md);
  color: var(--muted);
  line-height: 1.7;
  max-width: 48ch;
  margin-inline: auto;
  margin-bottom: 2rem;
}

.quiz-intro__meta {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.quiz-intro__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.quiz-intro__stat-num {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--text-s);
}

.quiz-intro__stat-label {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}



/* ── Motivational pills ─────────────────────────────────────── */
.quiz-intro__pills {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.quiz-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 1rem;
  background-color: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.02em;
}


/* ── Game screen ────────────────────────────────────────────── */
.quiz-game {
  animation: fadeIn 0.3s ease;
}

/* Progress bar */
.quiz-progress {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.quiz-progress__bar {
  flex: 1;
  height: 4px;
  background-color: var(--surface2);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.quiz-progress__fill {
  height: 100%;
  width: var(--pct, 10%);
  background-color: var(--accent);
  border-radius: var(--radius-xl);
  transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.quiz-progress__num {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
  min-width: 3.5rem;
  text-align: right;
}


/* Question */
.quiz-question {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 1.75rem;
  color: var(--text-s);
}


/* Options */
.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.quiz-option {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 1rem 1.25rem;
  background-color: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  text-align: left;
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: 1.5;
  color: var(--text-s);
  transition:
    border-color var(--t-fast),
    background-color var(--t-fast),
    box-shadow var(--t-fast),
    transform var(--t-fast);
}

.quiz-option:hover:not(.is-locked) {
  border-color: var(--border-h);
  background-color: var(--surface2);
  transform: translateY(-1px);
}

.quiz-option__key {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background-color: var(--surface2);
  border: 1px solid var(--border);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--muted);
  transition: all var(--t-fast);
}

.quiz-option__text {
  padding-top: 0.2rem;
}

/* Selected state */
.quiz-option.is-selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.quiz-option.is-selected .quiz-option__key {
  background-color: var(--accent);
  color: var(--accent-i);
  border-color: var(--accent);
}

/* Correct feedback */
.quiz-option.is-correct {
  border-color: #1e8e3e;
  background-color: rgba(30, 142, 62, 0.06);
  box-shadow: 0 0 0 1px #1e8e3e;
}

.quiz-option.is-correct .quiz-option__key {
  background-color: #1e8e3e;
  color: #fff;
  border-color: #1e8e3e;
}

/* Wrong feedback */
.quiz-option.is-wrong {
  border-color: #d93025;
  background-color: rgba(217, 48, 37, 0.06);
  box-shadow: 0 0 0 1px #d93025;
}

.quiz-option.is-wrong .quiz-option__key {
  background-color: #d93025;
  color: #fff;
  border-color: #d93025;
}

/* Locked state — no pointer after answering */
.quiz-option.is-locked {
  pointer-events: none;
}

/* Dark mode feedback */
html.dark .quiz-option.is-correct {
  background-color: rgba(129, 201, 149, 0.08);
  border-color: #81c995;
  box-shadow: 0 0 0 1px #81c995;
}

html.dark .quiz-option.is-correct .quiz-option__key {
  background-color: #81c995;
  color: #111;
}

html.dark .quiz-option.is-wrong {
  background-color: rgba(242, 139, 130, 0.08);
  border-color: #f28b82;
  box-shadow: 0 0 0 1px #f28b82;
}

html.dark .quiz-option.is-wrong .quiz-option__key {
  background-color: #f28b82;
  color: #111;
}


/* Quiz-specific: disabled override for global .btn */
.quiz-actions .btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.quiz-actions {
  display: flex;
  justify-content: flex-end;
}


/* ── Result screen ──────────────────────────────────────────── */
.quiz-result {
  text-align: center;
  padding-block: 1rem;
  animation: fadeIn 0.5s ease;
}



.quiz-result__score {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem;
  margin-bottom: 0.75rem;
}

.quiz-result__num {
  font-family: var(--font-serif);
  font-size: 5rem;
  font-weight: 600;
  line-height: 1;
  color: var(--text-s);
}

.quiz-result__total {
  font-family: var(--font-sans);
  font-size: var(--text-2xl);
  color: var(--muted);
  font-weight: 400;
}

.quiz-result__label {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-s);
}

.quiz-result__msg {
  font-family: var(--font-sans);
  font-size: var(--text-md);
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 2rem;
  max-width: 40ch;
  margin-inline: auto;
}

/* Share section */
.quiz-share {
  margin-bottom: 2.5rem;
}

.quiz-share__label {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.quiz-share__buttons {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.quiz-share__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  background-color: transparent;
  color: var(--text-s);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: border-color var(--t-fast), background-color var(--t-fast);
}

.quiz-share__btn:hover {
  border-color: var(--border-h);
  background-color: var(--surface2);
}

.quiz-share__btn svg {
  flex-shrink: 0;
}

/* Result action buttons */
.quiz-result__actions {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}




/* ── Confetti canvas ────────────────────────────────────────── */
#confettiCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9999;
}


/* ── Quiz CTA (on lesson page) ──────────────────────────────── */
.quiz-cta {
  margin-block: 3rem 1rem;
  padding: 2.5rem 2rem;
  text-align: center;
  background-color: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.quiz-cta h2 {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  margin-bottom: 0.5rem;
}

.quiz-cta p {
  font-family: var(--font-sans);
  font-size: var(--text-md);
  color: var(--muted);
  margin-bottom: 1.5rem;
}




/* ── Fade-in animation ──────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}


/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 640px) {
  .quiz-wrap {
    padding: 5rem var(--gutter) 3rem;
  }

  .quiz-intro__title {
    font-size: var(--text-2xl);
  }

  .quiz-question {
    font-size: var(--text-lg);
  }

  .quiz-option {
    padding: 0.875rem 1rem;
    font-size: var(--text-sm);
  }

  .quiz-option__key {
    width: 24px;
    height: 24px;
    font-size: var(--text-xs);
  }

  .quiz-result__num {
    font-size: 4rem;
  }

  .quiz-intro__meta {
    gap: 1.5rem;
  }

  .quiz-share__buttons {
    flex-direction: column;
    align-items: center;
  }

  .quiz-share__btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }
}