body { 
  font-family: Arial, sans-serif; 
  display: flex; 
  margin: 0; 
  padding: 20px; 
  background-color: #f4f4f4; 
}

.sidebar { 
  width: 300px; 
  background: white; 
  padding: 20px; 
  border-radius: 8px; 
  box-shadow: 0 0 10px rgba(0,0,0,0.1); 
  margin-right: 20px; 
  height: fit-content;
}

.canvas-container-wrapper { 
  background: white; 
  padding: 20px; 
  border-radius: 8px; 
  box-shadow: 0 0 10px rgba(0,0,0,0.1); 
  text-align: center; 
  overflow-x: auto; 
}

.form-group { 
  margin-bottom: 15px; 
}

label { 
  display: block; 
  font-weight: bold; 
  margin-bottom: 5px; 
}

select, input[type="file"], button { 
  width: 100%; 
  padding: 8px; 
  margin-bottom: 10px; 
  border: 1px solid #ccc; 
  border-radius: 4px; 
}

#color-picker {
  height: 40px; 
  cursor: pointer;
  width: 100%;
  padding: 0;
  border: none;
}

button { 
  color: white; 
  border: none; 
  cursor: pointer; 
  font-weight: bold; 
}

.btn-export {
  margin-top: 20px; 
  background-color: #007bff;
}

.btn-export:hover { 
  background-color: #0056b3; 
}

.btn-pesan {
  margin-top: 10px; 
  background-color: #25D366;
}

.btn-pesan:hover {
  background-color: #1ebe57;
}

#info-panel { 
  background: #e9ecef; 
  padding: 15px; 
  border-radius: 5px; 
  margin-top: 20px; 
  font-size: 14px; 
}

.info-item { 
  margin-bottom: 8px; 
  border-bottom: 1px solid #ddd; 
  padding-bottom: 4px; 
}

.guide-panel {
  margin-top: 15px; 
  font-size: 12px; 
  color: #555; 
  background: #fff3cd; 
  padding: 10px; 
  border-radius: 4px; 
  border: 1px solid #ffeeba;
}

canvas { 
  border: 1px solid #ccc; 
}

/* CSS Responsif untuk Mobile */
@media (max-width: 768px) {
  body { flex-direction: column; padding: 10px; }
  .sidebar { width: 100%; margin-right: 0; margin-bottom: 20px; box-sizing: border-box; }
  .canvas-container-wrapper { width: 100%; box-sizing: border-box; padding: 10px; }
}