/**
 * HelpDS Chapters Common Styles v1.0
 * chapters 섹션 전용 Dark 테마 스타일
 * (기존 Light 테마에서 Dark로 변환)
 *
 * 의존성: common-vars.css, common-components.css
 */

/* ===== Chapter Page Layout ===== */
.chapter-page {
  min-height: 100vh;
  background: var(--bg-page);
  color: var(--text-primary);
  padding-bottom: var(--spacing-2xl);
}

/* ===== Chapter Header ===== */
.chapter-header {
  background: var(--gradient-header);
  padding: var(--spacing-xl) var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.chapter-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--spacing-md);
}

.chapter-breadcrumb a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: var(--transition-fast);
}

.chapter-breadcrumb a:hover {
  color: white;
  text-decoration: underline;
}

.chapter-badge {
  display: inline-flex;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--badge-radius);
  font-size: 12px;
  font-weight: 600;
  color: white;
  backdrop-filter: blur(10px);
  margin-bottom: var(--spacing-sm);
}

.chapter-title {
  font-size: 2rem;
  font-weight: 800;
  color: white;
  margin-bottom: var(--spacing-sm);
}

.chapter-subtitle {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
}

/* ===== Chapter Content ===== */
.chapter-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ===== Article Styling ===== */
.chapter-article {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: var(--spacing-xl);
  backdrop-filter: blur(10px);
}

.chapter-article h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: var(--spacing-xl) 0 var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--primary);
}

.chapter-article h2:first-child {
  margin-top: 0;
}

.chapter-article h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: var(--spacing-lg) 0 var(--spacing-sm);
}

.chapter-article p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

.chapter-article ul,
.chapter-article ol {
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-lg);
  color: var(--text-secondary);
}

.chapter-article li {
  margin: var(--spacing-sm) 0;
  line-height: 1.7;
}

.chapter-article strong {
  color: var(--text-primary);
  font-weight: 600;
}

.chapter-article a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: var(--transition-fast);
}

.chapter-article a:hover {
  border-bottom-color: var(--primary);
}

/* ===== Code Blocks in Article ===== */
.chapter-article pre,
.chapter-article code {
  font-family: var(--font-mono);
}

.chapter-article code {
  background: rgba(0, 102, 255, 0.1);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
  color: var(--primary);
}

.chapter-article pre {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  overflow-x: auto;
  margin: var(--spacing-md) 0;
}

.chapter-article pre code {
  background: transparent;
  padding: 0;
  color: var(--text-primary);
}

/* ===== Info Boxes ===== */
.chapter-info {
  background: rgba(0, 102, 255, 0.1);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--spacing-md) var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.chapter-info-title {
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.chapter-warning {
  background: rgba(245, 158, 11, 0.1);
  border-left-color: var(--warning);
}

.chapter-warning .chapter-info-title {
  color: var(--warning);
}

.chapter-success {
  background: rgba(0, 200, 83, 0.1);
  border-left-color: var(--success);
}

.chapter-success .chapter-info-title {
  color: var(--success);
}

/* ===== Tables ===== */
.chapter-article table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
  font-size: 0.95rem;
}

.chapter-article th {
  background: var(--gradient-primary);
  color: white;
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
}

.chapter-article td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.chapter-article tr:hover td {
  background: var(--bg-hover);
}

/* ===== Chapter Navigation ===== */
.chapter-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

.chapter-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--button-radius);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition-normal);
}

.chapter-nav-link:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.chapter-nav-link.primary {
  background: var(--gradient-primary);
  border-color: transparent;
  color: white;
}

.chapter-nav-link.primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary);
}

/* ===== Section Number ===== */
.section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  color: white;
  font-size: 14px;
  font-weight: 700;
  margin-right: 10px;
}

/* ===== Related Links ===== */
.related-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.related-link {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-md);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition-normal);
}

.related-link:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.related-link span:first-child {
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 4px;
}

.related-link span:last-child {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ===== Back Button ===== */
.chapter-back-btn {
  position: fixed;
  top: 20px;
  left: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--button-radius);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
  z-index: var(--z-fixed);
}

.chapter-back-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .chapter-header {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .chapter-title {
    font-size: 1.5rem;
  }

  .chapter-content {
    padding: 0 var(--spacing-md);
  }

  .chapter-article {
    padding: var(--spacing-lg);
  }

  .chapter-back-btn {
    position: relative;
    top: auto;
    left: auto;
    margin: var(--spacing-md);
  }

  .chapter-nav {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .chapter-nav-link {
    width: 100%;
    justify-content: center;
  }
}

/* ===== 다크 테마 Info Box Override ===== */
/* 인라인 스타일의 밝은 그라데이션을 다크 테마에 맞게 override */
.info-box {
  background: rgba(0, 200, 83, 0.15) !important;
  border-left: 4px solid #00C853 !important;
}
.info-box p {
  color: #A7F3D0 !important;
}

.warning-box {
  background: rgba(245, 158, 11, 0.15) !important;
  border-left: 4px solid #F59E0B !important;
}
.warning-box p {
  color: #FDE68A !important;
}

.ai-box {
  background: rgba(0, 102, 255, 0.15) !important;
  border-left: 4px solid #0066FF !important;
}
.ai-box p {
  color: #93C5FD !important;
}

/* ===== 다이어그램 박스 다크 테마 Override ===== */
.flow-box.primary,
.flow-box.sensing,
.flow-box.reasoning,
.flow-box.acting,
.flow-box.feedback,
.cloud-layer,
.edge-layer,
.control-layer,
.field-layer,
.physical-space,
.virtual-space,
.model-box,
.stack-layer {
  background: rgba(30, 41, 59, 0.8) !important;
}

.box-title,
.layer-title {
  color: #F8FAFC !important;
}

.box-content,
.box-list,
.box-list li,
.layer-desc,
.box-subtitle {
  color: #CBD5E1 !important;
}