body { font-family: Arial, sans-serif; padding: 20px; background: #fafafa; }
header { margin-bottom: 20px; }
.controls input { padding: 8px; }
.kanban { display: flex; gap: 16px; overflow-x: auto; }
.column { background: #f5f5f5; padding: 12px; min-width: 240px; border-radius: 8px; flex: 0 0 240px; }
.card { background: white; padding: 10px; margin-bottom: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.1); cursor: pointer; border-left: 4px solid #333; }
.timesheet { margin-top: 30px; padding: 20px; background: white; border-radius: 8px; }
button { padding: 6px 12px; cursor: pointer; }