/* Learn Layout */
.learn-layout {
  display: flex;
  height: 100%;
}

.learn-sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
  padding: 8px 0;
}

.learn-nav-item {
  display: block;
  padding: 10px 16px 10px 24px;
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: all 0.15s;
}

.learn-nav-item:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.learn-nav-item.active { border-left-color: var(--accent); color: var(--accent); background: var(--bg-tertiary); }

.learn-nav-item .nav-icon {
  margin-right: 8px;
}

.learn-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px 40px;
  max-width: 900px;
}

.learn-content h1 { font-size: 28px; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.learn-content h2 { font-size: 22px; margin: 24px 0 12px; padding-bottom: 6px; border-bottom: 1px solid var(--border); }
.learn-content h3 { font-size: 18px; margin: 20px 0 8px; }
.learn-content p { margin: 8px 0; line-height: 1.6; color: var(--text-secondary); }
.learn-content ul { padding-left: 24px; margin: 8px 0; }
.learn-content li { margin: 4px 0; color: var(--text-secondary); line-height: 1.6; }
.learn-content strong { color: var(--text-primary); }
.learn-content code { background: var(--bg-tertiary); padding: 2px 6px; border-radius: 4px; font-size: 13px; color: var(--accent); }

.learn-agent-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin: 8px 0;
}

.learn-agent-card .agent-header {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.learn-agent-card .agent-role {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  margin-bottom: 6px;
}

.learn-agent-card .agent-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.learn-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
  margin: 12px 0;
}

.learn-info-item {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
}

.learn-info-item strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.learn-info-item span {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

@media (max-width: 768px) {
  .learn-sidebar { display: none; }
  .learn-content { padding: 16px; }
  .learn-info-grid { grid-template-columns: 1fr; }
}