:root {
  --primary-color: #3498db;
  --secondary-color: #2ecc71;
  --accent-color: #f39c12;
  --text-color: #333;
  --light-gray: #f5f5f5;
  --medium-gray: #e0e0e0;
  --dark-gray: #666;
  --white: #fff;
  --sidebar-width: 250px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  display: flex;
  min-height: 100vh;
}

a {
  color: var(--primary-color);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--light-gray);
  padding: 1.5rem;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  border-right: 1px solid var(--medium-gray);
}

.sidebar h1 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--primary-color);
}

.sidebar ul {
  list-style: none;
}

.sidebar li {
  margin-bottom: 0.5rem;
}

.sidebar .section-title {
  font-weight: bold;
  margin: 1rem 0 0.5rem 0;
  color: var(--dark-gray);
}

.sidebar-header {
  margin-bottom: 1.5rem;
}

.sidebar-header h2 {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin: 0;
}

.sidebar-nav {
  margin-bottom: 1.5rem;
}

.sidebar-nav ul {
  list-style: none;
  margin-left: 0;
}

.sidebar-nav li {
  margin-bottom: 0.8rem;
}

.sidebar-section-title {
  font-size: 1.1rem;
  margin: 1.5rem 0 0.8rem;
  color: var(--dark-gray);
}

.sidebar a.active {
  font-weight: bold;
  color: var(--accent-color);
}

/* Main content */
.content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 2rem;
}

h1, h2, h3, h4, h5, h6 {
  margin: 1.5rem 0 1rem 0;
  line-height: 1.2;
}

h1 {
  font-size: 2.2rem;
  color: var(--primary-color);
  border-bottom: 2px solid var(--light-gray);
  padding-bottom: 0.5rem;
}

h2 {
  font-size: 1.8rem;
  color: var(--secondary-color);
}

h3 {
  font-size: 1.5rem;
  color: var(--accent-color);
}

p, ul, ol {
  margin-bottom: 1rem;
}

ul, ol {
  margin-left: 2rem;
}

.section {
  margin-bottom: 3rem;
}

/* Code blocks */
pre {
  background-color: var(--light-gray);
  padding: 1rem;
  border-radius: 4px;
  overflow-x: auto;
  margin: 1rem 0;
}

code {
  font-family: 'Courier New', monospace;
  background-color: var(--light-gray);
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
}

th, td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--medium-gray);
}

th {
  background-color: var(--light-gray);
  font-weight: bold;
}

tr:hover {
  background-color: var(--light-gray);
}

/* Flow diagrams */
.flow-diagram {
  width: 100%;
  margin: 1.5rem 0;
  border: 1px solid var(--medium-gray);
  border-radius: 4px;
  overflow: hidden;
}

/* Cards for use cases */
.use-case-card {
  background-color: var(--white);
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--primary-color);
}

.use-case-card h3 {
  margin-top: 0;
}

.tag {
  display: inline-block;
  background-color: var(--accent-color);
  color: var(--white);
  padding: 0.2rem 0.5rem;
  border-radius: 16px;
  font-size: 0.8rem;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
}

.info-box {
  background-color: rgba(52, 152, 219, 0.1);
  border-left: 4px solid var(--primary-color);
  padding: 1rem;
  margin: 1rem 0;
  border-radius: 0 4px 4px 0;
}

.warning-box {
  background-color: rgba(243, 156, 18, 0.1);
  border-left: 4px solid var(--accent-color);
  padding: 1rem;
  margin: 1rem 0;
  border-radius: 0 4px 4px 0;
}

/* Database schema section */
.db-entity {
  margin-bottom: 1.5rem;
  padding: 1rem;
  background-color: var(--light-gray);
  border-radius: 4px;
}

.db-entity h4 {
  margin-top: 0;
  color: var(--primary-color);
}

.db-entity-description {
  margin-bottom: 0.5rem;
}

.db-fields {
  margin-top: 0.5rem;
}

.db-entity-field {
  margin-bottom: 5px;
}

/* Styles pour les images et diagrammes */
.centered-image {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 25px 0;
  padding: 10px;
}

.centered-image img {
  max-width: 100%;
  border: 1px solid #e0e0e0;
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.image-caption, .diagram-caption {
  margin-top: 10px;
  color: #555;
  font-style: italic;
  text-align: center;
  font-size: 14px;
}

.mermaid-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 25px 0;
  padding: 10px;
  background-color: #fff;
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.mermaid-container .mermaid {
  width: 100%;
  overflow: auto;
  padding: 15px;
}

.mermaid-container svg {
  max-width: 100%;
  margin: 0 auto;
  display: block;
}

.svg-container {
  width: 100%;
  overflow-x: auto;
}

/* Styles pour responsive images */
@media (max-width: 768px) {
  body {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
    border-right: none;
    border-bottom: 1px solid var(--medium-gray);
  }
  
  .content {
    margin-left: 0;
  }
  
  .centered-image img {
    width: 100%;
  }
}