/* /css/toefl.css */

/* Define CSS variables for dynamic sizing */
:root {
  --chunk-font-size: 18px;
  --chunk-min-width: 100px;
  --chunk-padding: 12px 20px;
}

/* Chunk bank styling */
.chunk-bank {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0;
  min-height: 50px;
  padding: 15px;
  background-color: #e6f3ff;
  border-radius: 8px;
}

/* Sentence area for chunks */
.sentence {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0;
  min-height: 50px;
  padding: 15px;
  background-color: #fff;
  border: 2px dashed #ccc;
  border-radius: 8px;
}

/* Individual chunk styling */
.chunk {
  padding: var(--chunk-padding);
  background-color: #007bff;
  color: white;
  border-radius: 6px;
  cursor: pointer;
  user-select: none;
  transition: all 0.2s;
  border: 1px solid #0056b3;
  font-size: var(--chunk-font-size);
  line-height: 1.5;
  min-width: var(--chunk-min-width);
  text-align: center;
}

.chunk:hover {
  background-color: #0056b3;
  transform: scale(1.05);
}

/* Correct and incorrect chunk styling */
.chunk.correct {
  background-color: #28a745;
  border-color: #1f8134;
  cursor: not-allowed;
}

.chunk.error {
  background-color: #dc3545;
  border-color: #a71d2a;
}

/* Fixed chunk (non-movable after correct placement) */
.chunk.fixed.correct {
  cursor: not-allowed;
  opacity: 0.9;
}

/* Placeholder for empty sentence slots */
.placeholder {
  padding: var(--chunk-padding);
  color: #555;
  border: 1px dashed #ccc;
  border-radius: 6px;
  font-size: var(--chunk-font-size);
  user-select: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: var(--chunk-min-width);
}

/* Combined sentence styling for correct answer */
.combined-sentence {
  padding: var(--chunk-padding);
  background-color: #28a745;
  color: white;
  border-radius: 6px;
  border: 1px solid #1f8134;
  font-size: var(--chunk-font-size);
  line-height: 1.5;
  text-align: center;
  width: 100%;
  margin: 0 auto;
}

/* Stats styling */
.stats {
  display: flex;
  justify-content: center;
  margin-bottom: 10px;
}

.stats-scores {
  display: flex;
  gap: 20px;
}

.stats-scores p {
  margin: 0;
}

/* Font size control buttons */
.font-size-controls {
  display: flex;
  justify-content: center;
  gap: 5px;
  margin: 10px 0;
}

#increase-font, #decrease-font {
  width: 20px;
  height: 20px;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  cursor: pointer;
  border: 1px solid #ccc;
  border-radius: 4px;
  transition: background-color 0.2s, transform 0.2s;
  background-color: #ffffff;
  color: #333;
}

#increase-font:hover, #decrease-font:hover {
  background-color: #e0e0e0;
  transform: scale(1.1);
}

#increase-font:disabled, #decrease-font:disabled {
  background-color: #f5f5f5;
  color: #999;
  cursor: not-allowed;
}

/* Question area styling */
.question {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0;
  min-height: 50px;
  padding: 15px;
  background-color: #f8f9fa;
  border-radius: 8px;
}

/* Individual question word styling */
.question-word {
  padding: var(--chunk-padding);
  background-color: #ffffff;
  color: #333;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: var(--chunk-font-size);
  line-height: 1.5;
  min-width: var(--chunk-min-width);
  text-align: center;
  user-select: none;
}

/* Options styling */
.options {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0;
  padding: 15px;
  background-color: #e6f3ff;
  border-radius: 8px;
}

.option {
  padding: var(--chunk-padding);
  background-color: #007bff;
  color: white;
  border-radius: 6px;
  cursor: pointer;
  user-select: none;
  transition: all 0.2s;
  border: 1px solid #0056b3;
  font-size: var(--chunk-font-size);
  line-height: 1.5;
  min-width: var(--chunk-min-width);
  text-align: center;
}

.option:hover {
  background-color: #0056b3;
  transform: scale(1.05);
}

.option.correct {
  background-color: #28a745;
  border-color: #1f8134;
  cursor: not-allowed;
}

.option.error {
  background-color: #dc3545;
  border-color: #a71d2a;
}

/* Mobile adjustments */
@media (max-width: 600px) {
  .chunk-bank, .sentence, .question, .options {
    padding: 10px;
  }

  .chunk, .combined-sentence, .option, .question-word {
    padding: calc(var(--chunk-font-size) * 0.66) calc(var(--chunk-font-size) * 1.11);
    font-size: calc(var(--chunk-font-size) * 0.9);
    min-width: calc(var(--chunk-font-size) * 5);
  }

  .placeholder {
    padding: calc(var(--chunk-font-size) * 0.66) calc(var(--chunk-font-size) * 1.11);
    font-size: calc(var(--chunk-font-size) * 0.9);
    min-width: calc(var(--chunk-font-size) * 5);
  }

  #increase-font, #decrease-font {
    width: 18px;
    height: 18px;
    font-size: 12px;
    line-height: 18px;
  }

  .stats-scores {
    gap: 10px;
  }
}