/**
 * Font: Switzer by Jérémie Hornus via Fontshare
 * https://www.fontshare.com/fonts/switzer
 */
@import url("https://api.fontshare.com/v2/css?f[]=switzer@100,200,300,400,500,600,700,800,900&display=swap");

/* Quiz page styles */
#quiz-wrapper {
  max-width: 860px;
  margin: 0 auto;
  font-family: inherit;
}

#quiz-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

#progress-bar-outer {
  flex: 1;
  background: #e4e6ea;
  border-radius: 999px;
  height: 10px;
  overflow: hidden;
}

#progress-bar-inner {
  height: 100%;
  background: var(--bs-primary, #1a5276);
  border-radius: 999px;
  transition: width 0.4s ease;
}

#q-counter {
  font-size: 0.88rem;
  font-weight: 600;
  color: #5b6370;
  white-space: nowrap;
}

#q-score {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--bs-primary, #1a5276);
  white-space: nowrap;
}

#question-box {
  background: var(--bs-primary, #1a5276);
  color: #fff;
  border-radius: 18px;
  padding: 28px 32px;
  margin-bottom: 20px;
  min-height: 100px;
  display: flex;
  align-items: center;
}

#question-box h2 {
  margin: 0;
  font-size: clamp(1.1rem, 2.5vw, 1.45rem);
  line-height: 1.35;
  color: #fff;
  font-weight: 600;
}

#answers-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 20px;
}

@media (max-width: 560px) {
  #answers-grid {
    grid-template-columns: 1fr;
  }
}

.answer-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border: none;
  border-radius: 14px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  text-align: left;
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease,
    opacity 0.2s ease;
  font-family: inherit;
}

.answer-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

.answer-btn:disabled {
  cursor: default;
}

.answer-btn.a {
  background: #e21b3c;
}
.answer-btn.b {
  background: #1368ce;
}
.answer-btn.c {
  background: #26890c;
}
.answer-btn.d {
  background: #e6a800;
}

.answer-btn .btn-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.answer-btn.correct {
  outline: 4px solid #fff;
  box-shadow: 0 0 0 6px rgba(0, 200, 80, 0.35);
}

.answer-btn.wrong {
  opacity: 0.45;
}

.answer-btn.correct-reveal {
  outline: 4px solid #fff;
  box-shadow: 0 0 0 6px rgba(0, 200, 80, 0.35);
}

#feedback-box {
  background: #f0f5fb;
  border: 1px solid #d0daea;
  border-radius: 14px;
  padding: 20px 24px;
  margin-bottom: 16px;
}

#feedback-icon {
  font-size: 2rem;
  line-height: 1;
  margin-bottom: 8px;
}

#feedback-result {
  font-weight: 700;
  font-size: 1.15rem;
  margin: 0 0 6px 0;
}

#feedback-explanation {
  font-size: 0.95rem;
  color: #444;
  margin: 0 0 16px 0;
}

#next-btn,
#restart-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 999px;
  border: none;
  background: var(--bs-primary, #1a5276);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

#next-btn:hover,
#restart-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(26, 82, 118, 0.28);
}

#results-box {
  background: var(--bs-primary, #1a5276);
  color: #fff;
  border-radius: 20px;
  padding: 36px 32px;
  text-align: center;
}

#results-box h2 {
  color: #fff;
  margin: 0 0 8px 0;
  font-size: 1.8rem;
}

#results-score-big {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 12px 0;
}

#results-msg {
  font-size: 1.1rem;
  opacity: 0.88;
  margin: 0 0 24px 0;
}

/* Zotero literature page */
#zotero-loading {
  color: #6a6f77;
  font-size: 0.95rem;
  padding: 20px 0;
}

#zotero-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.zotero-item {
  border-bottom: 1px solid #e8eaed;
  padding: 14px 0;
}

.zotero-item:last-child {
  border-bottom: none;
}

.zotero-title {
  font-weight: 600;
  font-size: 1rem;
  margin: 0 0 4px 0;
  color: #222;
}

.zotero-title a {
  color: var(--bs-primary, #1a5276);
}

.zotero-meta {
  font-size: 0.88rem;
  color: #5b6370;
  margin: 0;
}

.zotero-year-group {
  margin: 28px 0 0 0;
}

.zotero-year-group h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--bs-primary, #1a5276);
  border-bottom: 2px solid #e0e8f0;
  padding-bottom: 6px;
  margin: 0 0 8px 0;
}

#zotero-search {
  width: 100%;
  max-width: 480px;
  padding: 10px 16px;
  border: 1px solid #d0d5dd;
  border-radius: 999px;
  font-size: 0.95rem;
  font-family: inherit;
  margin-bottom: 24px;
  outline: none;
  transition: border-color 0.2s;
}

#zotero-search:focus {
  border-color: var(--bs-primary, #1a5276);
  box-shadow: 0 0 0 3px rgba(26, 82, 118, 0.12);
}