/* css/concept-colors.css - Color coding for different concepts */

:root {
  --color-ownership: #e74c3c;
  --color-borrowing: #3498db;
  --color-lifetimes: #9b59b6;
  --color-primitives: #27ae60;
  --color-quiz: #f39c12;
  --color-python-rust: #1abc9c;
}

/* Concept-based borders */
.concept-ownership {
  border-left: 4px solid var(--color-ownership);
}

.concept-borrowing {
  border-left: 4px solid var(--color-borrowing);
}

.concept-lifetimes {
  border-left: 4px solid var(--color-lifetimes);
}

.concept-primitives {
  border-left: 4px solid var(--color-primitives);
}

.concept-quiz {
  border-left: 4px solid var(--color-quiz);
}

.concept-python-rust {
  border-left: 4px solid var(--color-python-rust);
}

/* Concept badges */
.concept-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  color: white;
  margin-right: 8px;
}

.concept-badge.ownership {
  background: var(--color-ownership);
}

.concept-badge.borrowing {
  background: var(--color-borrowing);
}

.concept-badge.lifetimes {
  background: var(--color-lifetimes);
}

.concept-badge.primitives {
  background: var(--color-primitives);
}

.concept-badge.quiz {
  background: var(--color-quiz);
}

.concept-badge.python-rust {
  background: var(--color-python-rust);
}

/* Concept highlights */
.concept-highlight-ownership {
  background: rgba(231, 76, 60, 0.1);
  border-left: 3px solid var(--color-ownership);
  padding: 15px;
  border-radius: 4px;
  margin: 20px 0;
}

.concept-highlight-borrowing {
  background: rgba(52, 152, 219, 0.1);
  border-left: 3px solid var(--color-borrowing);
  padding: 15px;
  border-radius: 4px;
  margin: 20px 0;
}

.concept-highlight-lifetimes {
  background: rgba(155, 89, 182, 0.1);
  border-left: 3px solid var(--color-lifetimes);
  padding: 15px;
  border-radius: 4px;
  margin: 20px 0;
}

/* Section titles with icons */
.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 40px 0 20px 0;
  padding-bottom: 10px;
  border-bottom: 2px solid #e9ecef;
}

.section-title .section-icon {
  font-size: 28px;
  line-height: 1;
}

.section-title h2,
.section-title h3 {
  margin: 0;
  color: #212529;
}

.section-title.ownership h2,
.section-title.ownership h3 {
  color: var(--color-ownership);
}

.section-title.borrowing h2,
.section-title.borrowing h3 {
  color: var(--color-borrowing);
}

.section-title.lifetimes h2,
.section-title.lifetimes h3 {
  color: var(--color-lifetimes);
}

.section-title.primitives h2,
.section-title.primitives h3 {
  color: var(--color-primitives);
}

/* Code block headers with concept colors */
.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: #f8f9fa;
  border-radius: 8px 8px 0 0;
  border: 1px solid #e9ecef;
  border-bottom: none;
  font-size: 13px;
  font-weight: 600;
  color: #6c757d;
}

.code-block-header.ownership {
  border-color: var(--color-ownership);
  color: var(--color-ownership);
  background: rgba(231, 76, 60, 0.1);
}

.code-block-header.borrowing {
  border-color: var(--color-borrowing);
  color: var(--color-borrowing);
  background: rgba(52, 152, 219, 0.1);
}

.code-block-header.lifetimes {
  border-color: var(--color-lifetimes);
  color: var(--color-lifetimes);
  background: rgba(155, 89, 182, 0.1);
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
  .section-title {
    border-bottom-color: #4a5568;
  }

  .code-block-header {
    background: #2d3748;
    border-color: #4a5568;
    color: #a0aec0;
  }

  .concept-highlight-ownership,
  .concept-highlight-borrowing,
  .concept-highlight-lifetimes {
    background: rgba(255, 255, 255, 0.05);
  }
}

/* Print styles */
@media print {
  .concept-badge {
    background: #6c757d !important;
    border: 1px solid #212529;
  }

  .section-title {
    border-bottom-color: #212529;
  }
}