:root {
  --brand-blue: #007bff;
  --brand-accent: #3b82f6;
  --gray-light: #f9fbfd;
  --gray-dark: #2d3436;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: 'Roboto', sans-serif;
  background-color: var(--gray-light);
  color: var(--gray-dark);
  line-height: 1.7;
  padding: 20px 0;
}
header {
  background-color: #fff;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
header .logo img {
  height: 40px;
}
header .controls {
  display: flex;
  align-items: center;
  gap: 15px;
}
header .controls a {
  color: var(--brand-blue);
  text-decoration: none;
  font-weight: 500;
}
header .profile-icon {
  font-size: 1.8em;
  color: var(--gray-dark);
}
main {
  padding: 40px;
  max-width: 800px;
  margin: auto;
}
main h1 {
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
main h1 i {
  color: var(--brand-blue);
}
a:not(.doc-card) {
  color: var(--brand-accent);
}
h2, h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}
a {
  color: var(--brand-blue);
  text-decoration: none;
}
main p {
  margin-bottom: 1.25rem;
}

header {
  border-radius: 0 0 8px 8px;
}

.documentation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  margin: 3rem 0;
}

.doc-card {
  background-color: #fff;
  border-radius: 8px;
  padding: 25px 20px;
  text-align: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  border: 1px solid #e0e0e0;
  transition: transform 0.2s, box-shadow 0.2s;
  color: var(--gray-dark);
}

.doc-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.1);
}

.doc-card i {
  font-size: 2.5em;
  color: var(--brand-blue);
  margin-bottom: 15px;
}

.doc-card h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.doc-card p {
  font-size: 0.9rem;
  color: #6c757d;
  line-height: 1.4;
}

/* Language switcher */
.lang-toggle {
  display: flex;
  gap: 8px;
}

.lang-toggle button {
  background: #fff;
  border: 1px solid var(--brand-blue);
  color: var(--brand-blue);
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
}

.lang-toggle button.active {
  background: var(--brand-blue);
  color: #fff;
}

.links-section {
  margin: 2rem 0;
}

section {
  margin-top: 2rem;
}

.nota-bene {
  background-color: #fff9db;
  border-left: 4px solid var(--brand-accent);
  padding: 1rem 1.25rem;
  border-radius: 4px;
  color: var(--gray-dark);
}

.nota-bene strong {
  color: var(--brand-blue);
}
.related {
  margin: 1.5rem 0;
}