.reading-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}

.reading-card,
.question-set,
.text-sample {
  background: #fff;
  border: 1px solid #e0ddd6;
  border-radius: 16px;
  padding: 1.25rem;
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.05);
}

.reading-card h3,
.question-set h3,
.text-sample h3 {
  color: #1a1a2e;
  margin-bottom: 0.75rem;
}

.reading-card p,
.reading-card li,
.question-set p,
.question-set li,
.text-sample p,
.text-sample li {
  color: #444;
  line-height: 1.8;
}

.reading-card ul,
.question-set ul,
.text-sample ul {
  padding-left: 1.2rem;
}

.strategy-list {
  display: grid;
  gap: 0.85rem;
  margin: 1rem 0;
}

.strategy-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  align-items: start;
  background: #fff;
  border: 1px solid #e0ddd6;
  border-radius: 14px;
  padding: 1rem;
}

.strategy-step span {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: #1a1a2e;
  color: #fff;
  font-weight: 700;
}

.strategy-step strong {
  color: #1a1a2e;
}

.strategy-step p {
  margin: 0.25rem 0 0;
  color: #555;
  line-height: 1.7;
}

.text-sample {
  border-left: 5px solid #2563eb;
  background: linear-gradient(180deg, #ffffff, #f8fbff);
}

.text-sample .source-label {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 0.7rem;
  border-radius: 999px;
  background: #e8f0ff;
  color: #1d4ed8;
  padding: 0.35rem 0.7rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.text-sample blockquote {
  margin: 0;
  color: #273449;
  line-height: 1.9;
}

.highlight-box {
  background: #fff6e9;
  border-left: 4px solid #d97706;
  border-radius: 0 14px 14px 0;
  padding: 1.1rem 1.25rem;
  margin: 1rem 0;
}

.highlight-box strong {
  color: #8a431c;
}

.highlight-box p,
.highlight-box li {
  color: #6b4d2d;
  line-height: 1.75;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.05);
}

.compare-table th {
  background: #1a1a2e;
  color: #fff;
  text-align: left;
  padding: 0.85rem 1rem;
}

.compare-table td {
  border-bottom: 1px solid #f0ede8;
  padding: 0.85rem 1rem;
  color: #444;
  line-height: 1.65;
}

.compare-table tr:last-child td {
  border-bottom: 0;
}

.reading-quiz {
  background: #fff;
  border: 1px solid #e0ddd6;
  border-radius: 18px;
  padding: 1.5rem;
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.05);
}

.reading-quiz-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: #777;
  font-size: 0.92rem;
  margin-bottom: 1rem;
}

.reading-quiz-question {
  color: #1a1a2e;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.55;
  margin-bottom: 1rem;
}

.reading-quiz-options {
  display: grid;
  gap: 0.7rem;
}

.reading-option {
  border: 1px solid #d8d4cc;
  border-radius: 12px;
  background: #fbfaf7;
  color: #1a1a1a;
  cursor: pointer;
  padding: 0.85rem 1rem;
  text-align: left;
}

.reading-option:hover:not(:disabled) {
  border-color: #2563eb;
  background: #f0f5ff;
}

.reading-option.correct {
  border-color: #3b6d11;
  background: #eaf3de;
  color: #315e1e;
}

.reading-option.wrong {
  border-color: #a32d2d;
  background: #fcebeb;
  color: #8e3030;
}

.reading-feedback {
  min-height: 1.4rem;
  margin-top: 1rem;
  font-weight: 700;
}

.reading-feedback.success { color: #315e1e; }
.reading-feedback.error { color: #8e3030; }

.reading-explanation {
  display: none;
  margin-top: 0.8rem;
  border-radius: 12px;
  background: #f5f4f0;
  color: #555;
  padding: 0.85rem 1rem;
  line-height: 1.7;
}

.reading-next {
  margin-top: 1rem;
  border: 0;
  border-radius: 999px;
  background: #1a1a2e;
  color: #fff;
  cursor: pointer;
  padding: 0.75rem 1.4rem;
}

.reading-result {
  text-align: center;
  padding: 1.5rem;
}

.reading-result strong {
  display: block;
  color: #1a1a2e;
  font-size: 2.5rem;
  margin-bottom: 0.4rem;
}

@media (max-width: 700px) {
  .strategy-step {
    grid-template-columns: 1fr;
  }

  .reading-quiz-meta {
    flex-direction: column;
  }
}