/**
 * VPR 8 Class - Task 9 Styles
 * Стили для задания 9: Анализ алгоритмов на языке программирования
 */

@import url("vpr8-common.css");

/* Code tabs */
.code-tabs {
  margin: 15px 0;
}

.tab-buttons {
  display: flex;
  gap: 5px;
  margin-bottom: 0;
}

.tab-btn {
  padding: 8px 20px;
  border: none;
  background: #e9ecef;
  color: #555;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: 8px 8px 0 0;
  transition: all 0.2s;
}

.tab-btn:hover {
  background: #dee2e6;
}

.tab-btn.active {
  background: #1e1e2e;
  color: #cdd6f4;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Code block display */
.code-block {
  background: #1e1e2e;
  color: #cdd6f4;
  border-radius: 0 10px 10px 10px;
  padding: 20px 25px;
  margin: 0 0 15px;
  font-family: "Courier New", Consolas, monospace;
  font-size: 1rem;
  line-height: 1.7;
  overflow-x: auto;
  white-space: pre;
}

/* Pairs list */
.pairs-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 20px 0;
  max-width: 400px;
}

.pair-item {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 12px 18px;
  background: #f8f9fa;
  border-radius: 10px;
  border: 2px solid #e9ecef;
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}

.pair-item:hover {
  border-color: #667eea;
  background: #f0f2ff;
}

.pair-item.selected {
  border-color: #667eea;
  background: #e8ebff;
}

.pair-item.correct {
  border-color: #11998e;
  background: #d4edda;
}

.pair-item.incorrect {
  border-color: #eb3349;
  background: #f8d7da;
}

.pair-num {
  font-weight: bold;
  color: #667eea;
  font-size: 1.1rem;
  min-width: 30px;
}

.pair-values {
  font-family: "Courier New", monospace;
  font-size: 1.1rem;
  color: #333;
}

/* Checkbox for pair selection */
.pair-check {
  width: 22px;
  height: 22px;
  border: 2px solid #667eea;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  transition: all 0.2s;
}

.pair-item.selected .pair-check {
  background: #667eea;
}

.pair-check::after {
  content: "✓";
  color: white;
  font-size: 14px;
  display: none;
}

.pair-item.selected .pair-check::after {
  display: block;
}

/* Answer note */
.answer-note {
  color: #666;
  font-style: italic;
  margin: 15px 0;
}

/* Answer input */
.answer-section {
  margin-top: 25px;
  text-align: center;
}

.answer-label {
  display: block;
  margin-bottom: 12px;
  font-weight: 600;
  color: #333;
  font-size: 1.1rem;
}

.answer-input {
  width: 200px;
  padding: 12px 15px;
  font-size: 1.2rem;
  text-align: center;
  border: 2px solid #dee2e6;
  border-radius: 10px;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
  font-family: "Courier New", monospace;
}

.answer-input:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.answer-input.correct {
  border-color: #11998e;
  background: #d4edda;
}

.answer-input.incorrect {
  border-color: #eb3349;
  background: #f8d7da;
}

/* Hint table */
.hint-table {
  width: 100%;
  border-collapse: collapse;
  margin: 15px 0;
  background: white;
  border-radius: 8px;
  overflow: hidden;
  font-size: 0.9rem;
}

.hint-table th,
.hint-table td {
  padding: 10px 12px;
  text-align: center;
  border: 1px solid #e9ecef;
}

.hint-table th {
  background: linear-gradient(145deg, #667eea 0%, #764ba2 100%);
  color: white;
  font-weight: 600;
}

.hint-table tr:nth-child(even) {
  background: #f8f9fa;
}

.yes-result {
  color: #11998e;
  font-weight: bold;
}

.no-result {
  color: #eb3349;
  font-weight: bold;
}

/* Solution path in hint */
.solution-path {
  margin-top: 10px;
  line-height: 1.8;
}

.solution-path code {
  background: #e9ecef;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: "Courier New", monospace;
}

/* Task text styling */
.task-text {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #333;
}

.task-text strong {
  color: #2c3e50;
}

/* Responsive */
@media (max-width: 600px) {
  .code-block {
    padding: 15px 18px;
    font-size: 0.9rem;
  }

  .pairs-list {
    max-width: 100%;
  }

  .pair-item {
    padding: 10px 14px;
  }

  .pair-values {
    font-size: 1rem;
  }

  .answer-input {
    width: 160px;
    font-size: 1.1rem;
  }

  .hint-table th,
  .hint-table td {
    padding: 8px 6px;
    font-size: 0.8rem;
  }
}