/* =========================================================
   SKJEE Lesson Styles
   Version: 1007
   ========================================================= */

.lesson-wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 30px 20px;
}

.lesson-main-title {
  text-align: center;
  font-size: 42px;
  line-height: 1.15;
  margin: 30px auto 20px;
  color: #143044;
}

.lesson-box {
  background: #ffffff;
  border: 3px solid #d9eeee;
  border-radius: 24px;
  padding: 26px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
  margin-bottom: 28px;
}

.lesson-box h2 { margin-bottom: 12px; color: #143044; }
.lesson-box p { color: #5f7280; margin-bottom: 12px; }

.lesson-intro-box {
  border-color: #0b9a92;
  background: linear-gradient(135deg, #eefafa, #ffffff);
}

.lesson-transcript {
  display: none;
  margin-top: 18px;
  padding: 16px;
  border-radius: 18px;
  background: #ffffff;
  border: 2px solid #d9eeee;
}

.lesson-transcript.active { display: block; }

.lesson-learn-box {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  border: 5px solid #ff9f43;
  background: linear-gradient(135deg, #fff6e8, #eefafa);
}

.lesson-learn-pair,
.lesson-answer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.lesson-learn-pair {
  background: #eefafa;
  border-radius: 22px;
  padding: 22px;
  align-items: end;
}

.lesson-learn-item,
.lesson-answer-card {
  text-align: center;
}

.lesson-img-wrap {
  width: 100%;
  min-height: 135px;
  display: flex;
  align-items: end;
  justify-content: center;
}

.lesson-img-big {
  width: 100%;
  max-width: 190px;
  max-height: 170px;
  object-fit: contain;
}

.lesson-img-small {
  width: 100%;
  max-width: 120px;
  max-height: 120px;
  object-fit: contain;
}

.lesson-speech {
  background: #ffffff;
  padding: 12px 14px;
  border-radius: 18px;
  font-weight: 800;
  color: #143044;
  margin: 12px 0;
}

.lesson-start-btn {
  background: #ff9f43;
  color: #ffffff;
  font-size: 18px;
  padding: 15px 26px;
  border-radius: 18px;
  box-shadow: 0 8px 18px rgba(255,159,67,0.35);
}

.lesson-start-btn:hover { background: #f28b21; }

.lesson-start-btn.disabled,
.lesson-start-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

.blink-finger {
  display: inline-block;
  animation: skjeeBlink 0.8s infinite;
}

@keyframes skjeeBlink {
  0%, 100% { transform: translateX(0); opacity: 1; }
  50% { transform: translateX(6px); opacity: 0.55; }
}

.lesson-practice-box {
  border: 0;
  border-radius: 20px;
  padding: 10px 0 0;
  background: transparent;
  box-shadow: none;
}

.lesson-practice-box.color-orange,
.lesson-practice-box.color-purple,
.lesson-practice-box.color-green,
.lesson-practice-box.color-blue,
.lesson-practice-box.color-pink,
.lesson-practice-box.color-yellow {
  border-color: transparent;
}

.lesson-question {
  text-align: center;
  font-size: 26px;
  margin-bottom: 18px;
}

.lesson-answer-card {
  border: 2px solid #d9eeee;
  border-radius: 22px;
  padding: 18px 12px;
  background: #f8ffff;
  cursor: pointer;
  transition: .2s ease;
}

.lesson-answer-card:hover,
.lesson-answer-card.selected {
  transform: translateY(-3px);
  border-color: #0b9a92;
  background: #eafffb;
}

.lesson-answer-name {
  font-weight: 800;
  font-size: 20px;
  margin-top: 8px;
}

.lesson-tick {
  margin-top: 8px;
  font-weight: 800;
  color: #087c76;
}

.lesson-result {
  margin-top: 18px;
  padding: 14px;
  border-radius: 14px;
  text-align: center;
  font-weight: 800;
}

.lesson-result.correct {
  background: #e8fff1;
  color: #177a3d;
  border: 1px solid #a9e7bf;
}

.lesson-result.wrong {
  background: #fff0f0;
  color: #b42323;
  border: 1px solid #ffc4c4;
}

.lesson-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.lesson-list {
  padding-left: 22px;
  color: #5f7280;
}

.lesson-list li { margin-bottom: 8px; }

.lesson-related-grid,
.trusted-source-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.lesson-related-card,
.trusted-source-card {
  border: 3px solid #d9eeee;
  border-radius: 18px;
  padding: 18px;
  font-weight: 800;
  text-align: center;
  background: #f8ffff;
  transition: .2s ease;
}

.trusted-source-card:nth-child(1) {
  border-color: #0b9a92;
  background: #eefafa;
}

.trusted-source-card:nth-child(2) {
  border-color: #9b5de5;
  background: #f5efff;
}

.trusted-source-card:nth-child(3) {
  border-color: #ff9f43;
  background: #fff6e8;
}

.lesson-image-frame {
  max-width: 760px;
  margin: 0 auto;
  padding: 8px;
  border: 5px solid #f6c343;
  border-radius: 28px;
  background: #ffffff;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.lesson-image-frame img {
  width: 100%;
  max-height: 430px;
  object-fit: contain;
  display: block;
  border: 5px solid #22a6f2;
  border-radius: 20px;
  background: #ffffff;
}

.faq-item {
  border: 2px solid #d9eeee;
  border-radius: 16px;
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background: #eefafa;
  border: 0;
  padding: 16px;
  text-align: left;
  font-weight: 800;
  color: #143044;
  cursor: pointer;
  font-size: 16px;
}

.faq-answer {
  display: none;
  padding: 16px;
  color: #5f7280;
  background: #ffffff;
}

.faq-item.active .faq-answer { display: block; }

@media (max-width: 900px) {
  .lesson-related-grid,
  .trusted-source-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .lesson-wrap { padding: 22px 14px; }

  .lesson-main-title { font-size: 32px; }

  .lesson-box { padding: 20px; }

  .lesson-learn-pair,
  .lesson-answer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .lesson-img-wrap { min-height: 120px; }

  .lesson-img-big {
    max-width: 130px;
    max-height: 125px;
  }

  .lesson-img-small {
    max-width: 88px;
    max-height: 88px;
  }

  .lesson-question { font-size: 20px; }

  .lesson-answer-card { padding: 14px 8px; }

  .lesson-answer-name { font-size: 15px; }

  .lesson-start-btn {
    font-size: 16px;
    padding: 14px 20px;
  }

  .lesson-image-frame img { max-height: 300px; }
}