/* OpenRoboCare Documentation - Clean, minimal styling */

:root {
  --primary-color: #2563eb;
  --text-dark: #1e293b;
  --text-light: #64748b;
  --border-color: #e2e8f0;
  --bg-light: #f8fafc;
  --code-bg: #f1f5f9;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background: #ffffff;
}

/* Header */
header {
  background: var(--text-dark);
  color: white;
  padding: 1.5rem 2rem;
  border-bottom: 3px solid var(--primary-color);
}

header h1 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

header p {
  color: #94a3b8;
  font-size: 0.95rem;
}

/* Navigation */
nav {
  background: var(--bg-light);
  border-bottom: 1px solid var(--border-color);
  padding: 0;
}

nav ul {
  list-style: none;
  display: flex;
  max-width: 1200px;
  margin: 0 auto;
}

nav li {
  margin: 0;
}

nav a {
  display: block;
  padding: 1rem 1.5rem;
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  transition: background 0.2s;
}

nav a:hover,
nav a.active {
  background: white;
  color: var(--primary-color);
}

/* Main Content */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

/* Typography */
h2 {
  font-size: 2rem;
  margin: 2rem 0 1rem;
  color: var(--text-dark);
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.5rem;
}

h3 {
  font-size: 1.5rem;
  margin: 1.5rem 0 0.75rem;
  color: var(--text-dark);
}

h4 {
  font-size: 1.25rem;
  margin: 1.25rem 0 0.5rem;
  color: var(--text-dark);
}

p {
  margin: 1rem 0;
  color: var(--text-light);
  line-height: 1.7;
}

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

a:hover {
  text-decoration: underline;
}

/* Lists */
ul, ol {
  margin: 1rem 0 1rem 2rem;
  color: var(--text-light);
}

li {
  margin: 0.5rem 0;
}

/* Code blocks */
code {
  background: var(--code-bg);
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 0.9em;
  color: var(--text-dark);
}

pre {
  background: var(--code-bg);
  padding: 1rem;
  border-radius: 5px;
  overflow-x: auto;
  margin: 1rem 0;
  border: 1px solid var(--border-color);
}

pre code {
  background: none;
  padding: 0;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: white;
  border: 1px solid var(--border-color);
}

thead {
  background: var(--bg-light);
}

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

th {
  font-weight: 600;
  color: var(--text-dark);
}

td {
  color: var(--text-light);
}

tr:last-child td {
  border-bottom: none;
}

/* Info boxes */
.info-box {
  background: var(--bg-light);
  border-left: 4px solid var(--primary-color);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
}

.info-box h4 {
  margin-top: 0;
  color: var(--primary-color);
}

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.stat-card {
  background: var(--bg-light);
  padding: 1rem 1.2rem;
  border-radius: 5px;
  border: 1px solid var(--border-color);
  text-align: center;
}

.stat-card .number {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
  display: block;
  margin-bottom: 0.3rem;
}

.stat-card .label {
  color: var(--text-light);
  font-size: 0.85rem;
  line-height: 1.2;
}

/* Section blocks */
.section {
  margin: 3rem 0;
}

/* Directory tree */
.directory-tree {
  background: var(--code-bg);
  padding: 1.5rem;
  border-radius: 5px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 0.9rem;
  line-height: 1.8;
  border: 1px solid var(--border-color);
  overflow-x: auto;
  white-space: pre;
}

/* Footer */
footer {
  background: var(--text-dark);
  color: #94a3b8;
  text-align: center;
  padding: 2rem;
  margin-top: 4rem;
}

footer a {
  color: white;
}

/* Responsive */
@media (max-width: 768px) {
  nav ul {
    flex-direction: column;
  }

  main {
    padding: 2rem 1rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }
}